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package org.yamcs.xtce.xml;

import static org.yamcs.xtce.XtceDb.YAMCS_CMDARG_SPACESYSTEM_NAME;
import static org.yamcs.xtce.xml.Constants.*;

import java.io.IOException;
import java.net.URI;
import java.nio.ByteOrder;
import java.time.format.DateTimeParseException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.Duration;
import javax.xml.stream.Location;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.events.StartDocument;
import javax.xml.stream.events.StartElement;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.yamcs.xtce.*;
import org.yamcs.xtce.Algorithm.Scope;
import org.yamcs.xtce.CheckWindow.TimeWindowIsRelativeToType;
import org.yamcs.xtce.CommandVerifier.TerminationAction;
import org.yamcs.xtce.FloatDataEncoding.Encoding;
import org.yamcs.xtce.ParameterInstanceRef.InstanceRelativeTo;
import org.yamcs.xtce.SequenceEntry.ReferenceLocationType;
import org.yamcs.xtce.Significance.Levels;
import org.yamcs.xtce.StringDataEncoding.SizeType;
import org.yamcs.xtce.util.AggregateTypeUtil;
import org.yamcs.xtce.util.ArgumentReference;
import org.yamcs.xtce.util.DoubleRange;
import org.yamcs.xtce.util.HexUtils;
import org.yamcs.xtce.util.IncompleteType;
import org.yamcs.xtce.util.NameReference;
import org.yamcs.xtce.util.NameReference.Type;
import org.yamcs.xtce.util.ParameterReference;
import org.yamcs.xtce.util.ParameterReference.ParameterResolvedAction;
import org.yamcs.xtce.util.ReferenceFinder;
import org.yamcs.xtce.util.ReferenceFinder.FoundReference;

/**
 * This class reads the XTCE XML files. XML document is accessed with the use of the Stax Iterator API.
 * 
 */
public class XtceStaxReader extends AbstractStaxReader {

    // XTCE Schema defined tags, to minimize the mistyping errors

    private static final String YAMCS_IGNORE = "_yamcs_ignore";

    public static final DynamicIntegerValue IGNORED_DYNAMIC_VALUE = new DynamicIntegerValue(
            new ParameterInstanceRef(new Parameter(YAMCS_IGNORE)));
    /**
     * Logging subsystem
     */
    private static Logger log = LoggerFactory.getLogger(XtceStaxReader.class);

    /**
     * Statistics about the skipped sections. (good for overview about unimplemented features)
     */
    private Map xtceSkipStatistics = new HashMap<>();
    private Set excludedContainers = new HashSet<>();

    public XtceStaxReader(String fileName) throws IOException, XMLStreamException {
        super(fileName);
    }

    /**
     * Reads the XML XTCE file
     * 
     * @return returns the SpaceSystem read from the XML file
     * @throws XMLStreamException
     * @throws IOException
     * 
     */
    public SpaceSystem readXmlDocument() throws XMLStreamException, IOException, XtceLoadException {
        log.info("Parsing XTCE file {}", fileName);
        xmlEvent = null;
        SpaceSystem spaceSystem = null;
        while (true) {
            xmlEvent = xmlEventReader.nextEvent();
            int eventType = xmlEvent.getEventType();
            if (eventType == XMLStreamConstants.COMMENT) {
                continue;
            }

            if (eventType == XMLStreamConstants.START_DOCUMENT) {
                onStartDocument((StartDocument) xmlEvent);
            } else if (eventType == XMLStreamConstants.START_ELEMENT) {
                spaceSystem = readSpaceSystem();
            } else if (eventType == XMLStreamConstants.END_DOCUMENT) {
                onEndDocument();
                break;
            } else if (isStartElementWithName(ELEM_SPACE_SYSTEM)) {
                SpaceSystem ss = readSpaceSystem();
                spaceSystem.addSpaceSystem(ss);
            } else if (eventType == XMLStreamConstants.PROCESSING_INSTRUCTION) {
                log.debug("Skipping processing instruction: {} ", xmlEvent);
            } else {
                // something went wrong, all options should be handled by the
                // upper if-branches
                // log.error("XML document parser error, unhandled event type."
                // + XMLStreamConstants.CHARACTERS);
                // throw new IllegalStateException();
                log.error("Unhandled event: {} ", xmlEvent);
            }

            if (xmlEventReader.peek() == null) {
                // assert false; document must be closed gracefully
                this.xmlEvent = null;
                throw new IllegalStateException("XML file parsing error");
            }
        }
        log.info("XTCE file parsing finished, loaded: {} parameters, {} tm containers, {} commands",
                spaceSystem.getParameterCount(true), spaceSystem.getSequenceContainerCount(true),
                spaceSystem.getMetaCommandCount(true));
        // try to resolve some internal references
        ReferenceFinder refFinder = new ReferenceFinder(s -> log.warn(s));
        while (resolveReferences(spaceSystem, spaceSystem, refFinder) > 0) {
        }

        return spaceSystem;
    }

    /**
     * * resolves references in ss by going recursively to all sub-space systems (in the first call ss=topSs)
     * 
     * Return the number of reference resolved or -1 if there was nothing to resolve
     * 

* Do not resolve references that start with the root container ("/a/b/c") */ private static int resolveReferences(SpaceSystem topSs, SpaceSystem ss, ReferenceFinder refFinder) { List refs = ss.getUnresolvedReferences(); if (refs == null) {// need to continue to look in subsystems refs = Collections.emptyList(); } int n = refs.isEmpty() ? -1 : 0; Iterator it = refs.iterator(); while (it.hasNext()) { NameReference nr = it.next(); if (nr.getReference().charAt(0) == NameDescription.PATH_SEPARATOR) { continue; } FoundReference rr = refFinder.findReference(topSs, nr, ss); if (rr == null) { // look for aliases up the hierarchy rr = refFinder.findAliasReference(topSs, nr, ss); } if (rr != null && rr.isComplete()) { rr.resolved(nr); n++; it.remove(); } } for (SpaceSystem ss1 : ss.getSubSystems()) { int m = resolveReferences(topSs, ss1, refFinder); if (n == -1) { n = m; } else if (m > 0) { n += m; } } return n; } /** * Method called on start document event. Currently just logs the information contained in the xml preamble of the * parsed file. * * @param start * Start document event object */ private void onStartDocument(StartDocument start) { log.trace("XML version='{} encoding: '{}'", start.getVersion(), start.getCharacterEncodingScheme()); } /** * Start of reading at the root of the document. According to the XTCE schema the root element is * <SpaceSystem> * * @throws XMLStreamException */ private SpaceSystem readSpaceSystem() throws XMLStreamException { checkStartElementPreconditions(); var startElement = xmlEvent.asStartElement(); String value = readMandatoryAttribute(ATTR_NAME, startElement); SpaceSystem spaceSystem = new SpaceSystem(value); spaceSystem.setShortDescription(readAttribute(ATTR_SHORT_DESCRIPTION, startElement, null)); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isNamedItemProperty()) { readNamedItemProperty(spaceSystem); } else if (isStartElementWithName(ELEM_HEADER)) { readHeader(spaceSystem); } else if (isStartElementWithName(ELEM_TELEMTRY_META_DATA)) { readTelemetryMetaData(spaceSystem); } else if (isStartElementWithName(ELEM_COMMAND_MEATA_DATA)) { readCommandMetaData(spaceSystem); } else if (isStartElementWithName(ELEM_SPACE_SYSTEM)) { SpaceSystem ss = readSpaceSystem(); spaceSystem.addSpaceSystem(ss); } else if (isEndElementWithName(ELEM_SPACE_SYSTEM)) { break; } else { logUnknown(); } } return spaceSystem; } /** * Action taken on end of the document event */ private void onEndDocument() { log.trace("End of XML document"); } /** * Extraction of the AliasSet section Current implementation does nothing, just skips whole section * * @return Set of aliases defined for the object * @throws XMLStreamException */ private XtceAliasSet readAliasSet() throws XMLStreamException { log.trace(ELEM_ALIAS_SET); checkStartElementPreconditions(); XtceAliasSet xtceAliasSet = new XtceAliasSet(); while (true) { xmlEvent = xmlEventReader.nextEvent(); // sections if (isStartElementWithName(ELEM_ALIAS)) { readAlias(xtceAliasSet); } else if (isEndElementWithName(ELEM_ALIAS_SET)) { return xtceAliasSet; } else { logUnknown(); } } } /** * Extraction of the AliasSet section Current implementation does nothing, just skips whole section * * @throws XMLStreamException */ private void readAlias(XtceAliasSet aliasSet) throws XMLStreamException { log.trace(ELEM_ALIAS); checkStartElementPreconditions(); String nameSpace = readMandatoryAttribute("nameSpace", xmlEvent.asStartElement()); nameSpace = nameSpace.intern(); String alias = readMandatoryAttribute("alias", xmlEvent.asStartElement()); aliasSet.addAlias(nameSpace, alias); // read end element xmlEvent = xmlEventReader.nextEvent(); if (!isEndElementWithName(ELEM_ALIAS)) { throw new XMLStreamException(ELEM_ALIAS + " end element expected"); } } private List readAncillaryDataSet() throws XMLStreamException { log.trace(ELEM_ANCILLARY_DATA_SET); checkStartElementPreconditions(); List ancillaryData = new ArrayList<>(); while (true) { xmlEvent = xmlEventReader.nextEvent(); // sections if (isStartElementWithName(ELEM_ANCILLARY_DATA)) { readAncillaryData(ancillaryData); } else if (isEndElementWithName(ELEM_ANCILLARY_DATA_SET)) { return ancillaryData; } else { logUnknown(); } } } private void readAncillaryData(List ancillaryData) throws XMLStreamException { log.trace(ELEM_ANCILLARY_DATA); StartElement element = checkStartElementPreconditions(); String name = readMandatoryAttribute(ATTR_NAME, element); String mimeType = readAttribute("mimeType", element, null); String href = readAttribute("href", element, null); String text = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (xmlEvent.isCharacters()) { text = xmlEvent.asCharacters().getData().trim(); break; } else if (isEndElementWithName(ELEM_ANCILLARY_DATA)) { break; } } AncillaryData ad = new AncillaryData(name, text); if (mimeType != null) { ad.setMimeType(mimeType); } if (href != null) { ad.setHref(URI.create(href)); } ancillaryData.add(ad); } /** * Extraction of the Header section Current implementation does nothing, just skips whole section * * @param spaceSystem * * @throws XMLStreamException */ private void readHeader(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_HEADER); checkStartElementPreconditions(); Header h = new Header(); String value = readAttribute("version", xmlEvent.asStartElement(), null); if (value != null) { h.setVersion(value); } value = readAttribute("date", xmlEvent.asStartElement(), null); if (value != null) { h.setDate(value); } spaceSystem.setHeader(h); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_AUTHOR_SET)) { skipXtceSection(ELEM_AUTHOR_SET); } else if (isStartElementWithName(ELEM_NOTE_SET)) { skipXtceSection(ELEM_NOTE_SET); } else if (isStartElementWithName(ELEM_HISTORY_SET)) { skipXtceSection(ELEM_HISTORY_SET); } else if (isEndElementWithName(ELEM_HEADER)) { return; } else { logUnknown(); } } } /** * Extraction of the TelemetryMetaData section * * @param spaceSystem * * @throws XMLStreamException */ private void readTelemetryMetaData(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_TELEMTRY_META_DATA); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_PARAMETER_TYPE_SET)) { readParameterTypeSet(spaceSystem); } else if (isStartElementWithName(ELEM_PARAMETER_SET)) { readParameterSet(spaceSystem); } else if (isStartElementWithName(ELEM_CONTAINER_SET)) { readContainerSet(spaceSystem); } else if (isStartElementWithName(ELEM_MESSAGE_SET)) { readMessageSet(); } else if (isStartElementWithName(ELEM_STREAM_SET)) { readStreamSet(); } else if (isStartElementWithName(ELEM_ALGORITHM_SET)) { readAlgorithmSet(spaceSystem); } else if (isEndElementWithName(ELEM_TELEMTRY_META_DATA)) { return; } else { logUnknown(); } } } /** * @param spaceSystem * @throws XMLStreamException */ private void readParameterTypeSet(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_PARAMETER_TYPE_SET); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); IncompleteType incompleteType = null; if (isStartElementWithName(ELEM_BOOLEAN_PARAMETER_TYPE)) { incompleteType = readBooleanParameterType(spaceSystem); } else if (isStartElementWithName(ELEM_ENUMERATED_PARAMETER_TYPE)) { incompleteType = readEnumeratedParameterType(spaceSystem); } else if (isStartElementWithName(ELEM_FLOAT_PARAMETER_TYPE)) { incompleteType = readFloatParameterType(spaceSystem); } else if (isStartElementWithName(ELEM_INTEGER_PARAMETER_TYPE)) { incompleteType = readIntegerParameterType(spaceSystem); } else if (isStartElementWithName(ELEM_BINARY_PARAMETER_TYPE)) { incompleteType = readBinaryParameterType(spaceSystem); } else if (isStartElementWithName(ELEM_STRING_PARAMETER_TYPE)) { incompleteType = readStringParameterType(spaceSystem); } else if (isStartElementWithName(ELEM_RELATIVE_TIME_PARAMETER_TYPE)) { incompleteType = readRelativeTimeParameterType(); } else if (isStartElementWithName(ELEM_ABSOLUTE_TIME_PARAMETER_TYPE)) { incompleteType = readAbsoluteTimeParameterType(spaceSystem); } else if (isStartElementWithName(ELEM_ARRAY_PARAMETER_TYPE)) { incompleteType = readArrayParameterType(spaceSystem); } else if (isStartElementWithName(ELEM_AGGREGATE_PARAMETER_TYPE)) { incompleteType = readAggregateParameterType(spaceSystem); } else { logUnknown(); } if (incompleteType != null) {// relative time parameter returns null incompleteType.scheduleCompletion(); } if (isEndElementWithName(ELEM_PARAMETER_TYPE_SET)) { return; } } } private IncompleteType readBooleanParameterType(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_BOOLEAN_PARAMETER_TYPE); StartElement element = checkStartElementPreconditions(); BooleanParameterType.Builder typeBuilder = new BooleanParameterType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readParameterBaseTypeAttributes(spaceSystem, element, incompleteType); typeBuilder.setOneStringValue(readAttribute("oneStringValue", element, null)); typeBuilder.setZeroStringValue(readAttribute("zeroStringValue", element, null)); // read all parameters while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING)) { typeBuilder.setEncoding(readIntegerDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { typeBuilder.setEncoding(readFloatDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { typeBuilder.setEncoding(readBinaryDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isEndElementWithName(ELEM_BOOLEAN_PARAMETER_TYPE)) { return incompleteType; } else { logUnknown(); } } } private IncompleteType readAggregateParameterType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_AGGREGATE_PARAMETER_TYPE); checkStartElementPreconditions(); String name = readMandatoryAttribute(ATTR_NAME, xmlEvent.asStartElement()); AggregateParameterType.Builder typeBuilder = new AggregateParameterType.Builder().setName(name); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isNamedItemProperty()) { readNamedItemProperty(typeBuilder); } else if (isStartElementWithName(ELEM_MEMBER_LIST)) { typeBuilder.addMembers(readMemberList(spaceSystem, true)); } else if (isEndElementWithName(ELEM_AGGREGATE_PARAMETER_TYPE)) { return incompleteType; } else { logUnknown(); } } } private List readMemberList(SpaceSystem spaceSystem, boolean paramOrAggreg) throws XMLStreamException { log.trace(ELEM_MEMBER_LIST); checkStartElementPreconditions(); List l = new ArrayList<>(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_MEMBER)) { l.add(readXtceMember(spaceSystem, paramOrAggreg)); } else if (isEndElementWithName(ELEM_MEMBER_LIST)) { return l; } } } private Member readXtceMember(SpaceSystem spaceSystem, boolean paramOrAggreg) throws XMLStreamException { log.trace(ELEM_MEMBER); checkStartElementPreconditions(); StartElement element = xmlEvent.asStartElement(); String name = readMandatoryAttribute(ATTR_NAME, element); Member member = new Member(name); member.setShortDescription(readAttribute(ATTR_SHORT_DESCRIPTION, element, null)); String typeRef = readMandatoryAttribute("typeRef", element); String initialValue = readAttribute(ATTR_INITIAL_VALUE, element, null); if (paramOrAggreg) { NameReference nr = new NameReference(typeRef, Type.PARAMETER_TYPE).addResolvedAction(nd -> { member.setDataType((ParameterType) nd); if (initialValue != null) { member.setInitialValue(initialValue); } }); spaceSystem.addUnresolvedReference(nr); } else { NameReference nr = new NameReference(typeRef, Type.ARGUMENT_TYPE).addResolvedAction(nd -> { member.setDataType((ArgumentType) nd); if (initialValue != null) { member.setInitialValue(initialValue); } }); spaceSystem.addUnresolvedReference(nr); } return member; } private IncompleteType readArrayParameterType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_ARRAY_PARAMETER_TYPE); StartElement element = checkStartElementPreconditions(); String name = readMandatoryAttribute(ATTR_NAME, element); ArrayParameterType.Builder typeBuilder = new ArrayParameterType.Builder().setName(name); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); int dim; if (hasAttribute("numberOfDimensions", element)) { dim = readIntAttribute("numberOfDimensions", element); typeBuilder.setNumberOfDimensions(dim); } else { dim = -1; } String refName = readMandatoryAttribute("arrayTypeRef", xmlEvent.asStartElement()); NameReference nr = new NameReference(refName, Type.PARAMETER_TYPE).addResolvedAction(nd -> { typeBuilder.setElementType((ParameterType) nd); }); incompleteType.addReference(nr); spaceSystem.addUnresolvedReference(nr); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isNamedItemProperty()) { readNamedItemProperty(typeBuilder); } else if (isStartElementWithName(ELEM_DIMENSION_LIST)) { List dimList = readDimensionList(spaceSystem); dim = dimList.size(); typeBuilder.setSize(dimList); } else if (isEndElementWithName(ELEM_ARRAY_PARAMETER_TYPE)) { if (dim == -1) { throw new XMLStreamException("Neither numberOfDimensions (XTCE 1.1) attribute nor " + ELEM_DIMENSION_LIST + " (XTCE 1.2) element defined for the ArrayParameter " + name); } return incompleteType; } else { logUnknown(); } } } private void readParameterBaseTypeAttributes(SpaceSystem spaceSystem, StartElement element, IncompleteType incompleteType) throws XMLStreamException { BaseDataType.Builder typeBuilder = (BaseDataType.Builder) incompleteType.getTypeBuilder(); String name = readMandatoryAttribute(ATTR_NAME, element); typeBuilder.setName(name); typeBuilder.setShortDescription(readAttribute(ATTR_SHORT_DESCRIPTION, element, null)); String baseType = readAttribute("baseType", element, null); if (baseType != null) { NameReference nr = new NameReference(baseType, Type.PARAMETER_TYPE).addResolvedAction(nd -> { ParameterType ptype = (ParameterType) nd; if (!(ptype instanceof BaseDataType)) { throwException(element.getLocation(), "cannot use " + ptype.getName() + " as a baseType"); } typeBuilder.setBaseType((BaseDataType) ptype); }); incompleteType.addReference(nr); spaceSystem.addUnresolvedReference(nr); } } private void readArgumentBaseTypeAttributes(SpaceSystem spaceSystem, StartElement element, IncompleteType incompleteType) throws XMLStreamException { BaseDataType.Builder typeBuilder = (BaseDataType.Builder) incompleteType.getTypeBuilder(); String name = readMandatoryAttribute(ATTR_NAME, element); typeBuilder.setName(name); typeBuilder.setShortDescription(readAttribute(ATTR_SHORT_DESCRIPTION, element, null)); String baseType = readAttribute("baseType", element, null); if (baseType != null) { NameReference nr = new NameReference(baseType, Type.ARGUMENT_TYPE).addResolvedAction(nd -> { ArgumentType ptype = (ArgumentType) nd; if (!(ptype instanceof BaseDataType)) { throwException(element.getLocation(), "cannot use " + ptype.getName() + " as a baseType"); } typeBuilder.setBaseType((BaseDataType) ptype); }); incompleteType.addReference(nr); spaceSystem.addUnresolvedReference(nr); } } private boolean readBaseTypeProperties(BaseDataType.Builder typeBuilder) throws XMLStreamException { if (isNamedItemProperty()) { readNamedItemProperty(typeBuilder); } else if (isStartElementWithName(ELEM_UNIT_SET)) { typeBuilder.addAllUnits(readUnitSet()); return true; } return false; } private IncompleteType readAbsoluteTimeParameterType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_ABSOLUTE_TIME_PARAMETER_TYPE); StartElement element = checkStartElementPreconditions(); AbsoluteTimeParameterType.Builder typeBuilder = new AbsoluteTimeParameterType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readParameterBaseTypeAttributes(spaceSystem, element, incompleteType); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_REFERENCE_TIME)) { typeBuilder.setReferenceTime(readReferenceTime(spaceSystem)); } else if (isStartElementWithName(ELEM_ENCODING)) { readEncoding(spaceSystem, typeBuilder); } else if (isEndElementWithName(ELEM_ABSOLUTE_TIME_PARAMETER_TYPE)) { if (typeBuilder.getReferenceTime() == null) { if (!(typeBuilder.getEncoding() instanceof BinaryDataEncoding.Builder bdb) || bdb.getFromBinaryTransformAlgorithm() == null) { throw new XMLStreamException( "AbsoluteTimeParameterType without a reference time not supported " + "(except if it used a BinaryDataEncoding with an algorithm " + "which could produce directly an absolute time)", xmlEvent.getLocation()); } } return incompleteType; } else { logUnknown(); } } } private IncompleteType readRelativeTimeParameterType() throws IllegalStateException, XMLStreamException { skipXtceSection(ELEM_RELATIVE_TIME_PARAMETER_TYPE); return null; } private ReferenceTime readReferenceTime(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_REFERENCE_TIME); checkStartElementPreconditions(); ReferenceTime referenceTime = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_OFFSET_FROM)) { referenceTime = new ReferenceTime(readParameterInstanceRef(spaceSystem, null)); } else if (isStartElementWithName(ELEM_EPOCH)) { referenceTime = new ReferenceTime(readEpoch()); } else if (isEndElementWithName(ELEM_REFERENCE_TIME)) { return referenceTime; } else { logUnknown(); } } } private TimeEpoch readEpoch() throws XMLStreamException { log.trace(ELEM_EPOCH); String s = readStringBetweenTags(ELEM_EPOCH); try { return new TimeEpoch(TimeEpoch.CommonEpochs.valueOf(s)); } catch (IllegalArgumentException e) { try { return new TimeEpoch(s); } catch (DateTimeParseException e1) { e1.printStackTrace(); throw new XMLStreamException(e.getMessage(), xmlEvent.getLocation()); } } } // encoding used only for absolute time arguments or parameters private void readEncoding(SpaceSystem spaceSystem, AbsoluteTimeDataType.Builder ptype) throws XMLStreamException { log.trace(ELEM_ENCODING); checkStartElementPreconditions(); // name attribute String units = readAttribute("units", xmlEvent.asStartElement(), null); if ((units != null) && (!"seconds".equals(units))) { throw new XMLStreamException("Unsupported unit types '" + units + "' for time encoding." + " Only seconds (with scaling) supported", xmlEvent.getLocation()); } boolean needsScaling = false; double offset = 0d; double scale = 1d; String offsets = readAttribute("offset", xmlEvent.asStartElement(), null); if (offsets != null) { needsScaling = true; offset = parseDouble(offsets); } String scales = readAttribute("scale", xmlEvent.asStartElement(), null); if (scales != null) { needsScaling = true; scale = parseDouble(scales); } if (needsScaling) { ptype.setScaling(offset, scale); } DataEncoding.Builder dataEncoding = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING)) { dataEncoding = readIntegerDataEncoding(spaceSystem); } else if (isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { dataEncoding = readFloatDataEncoding(spaceSystem); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { dataEncoding = readBinaryDataEncoding(spaceSystem); } else if (isEndElementWithName(ELEM_ENCODING)) { ptype.setEncoding(dataEncoding); return; } else { logUnknown(); } } } private IncompleteType readFloatParameterType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_FLOAT_PARAMETER_TYPE); StartElement element = checkStartElementPreconditions(); // name attribute FloatParameterType.Builder typeBuilder = new FloatParameterType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readParameterBaseTypeAttributes(spaceSystem, element, incompleteType); String value = readAttribute(ATTR_SIZE_IN_BITS, element, null); if (value != null) { int sizeInBits = Integer.parseInt(value); if (sizeInBits != 32 && sizeInBits != 64) { throw new XMLStreamException("Float encoding " + sizeInBits + " not supported;" + " Only 32 and 64 bits are supported", xmlEvent.getLocation()); } typeBuilder.setSizeInBits(sizeInBits); } value = readAttribute(ATTR_INITIAL_VALUE, element, null); if (value != null) { typeBuilder.setInitialValue(value); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING)) { typeBuilder.setEncoding(readIntegerDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { typeBuilder.setEncoding(readFloatDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { throw new XMLStreamException("Cannot use a binary data encoding for float parameter type"); } else if (isStartElementWithName(ELEM_DEFAULT_ALARM)) { typeBuilder.setDefaultAlarm(readDefaultAlarm()); } else if (isStartElementWithName(ELEM_CONTEXT_ALARM_LIST)) { typeBuilder.setContextAlarmList(readNumericContextAlarmList(spaceSystem)); } else if (isStartElementWithName(ELEM_VALID_RANGE)) { typeBuilder.setValidRange(readFloatValidRange()); } else if (isStartElementWithName(ELEM_TO_STRING)) { typeBuilder.setNumberFormat(readToString()); } else if (isEndElementWithName(ELEM_FLOAT_PARAMETER_TYPE)) { return incompleteType; } else { logUnknown(); } } } private FloatDataEncoding.Builder readFloatDataEncoding(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_FLOAT_DATA_ENCODING); StartElement element = checkStartElementPreconditions(); FloatDataEncoding.Builder floatDataEncoding = null; Integer sizeInBits = null; if (hasAttribute(ATTR_SIZE_IN_BITS, element)) { sizeInBits = readIntAttribute(ATTR_SIZE_IN_BITS, element); } ByteOrder byteOrder = readByteOrder(); // encoding attribute String value = readAttribute("encoding", element, null); Encoding enc = null; if (value != null) { if ("IEEE754_1985".equalsIgnoreCase(value)) { // ok, this encoding is the default } else if ("MILSTD_1750A".equalsIgnoreCase(value)) { enc = Encoding.MILSTD_1750A; } else if ("STRING".equalsIgnoreCase(value)) { // Not in XTCE, but allowed by Yamcs enc = Encoding.STRING; } else { throwException("Unknown encoding '" + value + "'"); } } floatDataEncoding = new FloatDataEncoding.Builder() .setSizeInBits(sizeInBits) .setByteOrder(byteOrder) .setFloatEncoding(enc); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_DEFAULT_CALIBRATOR)) { floatDataEncoding.setDefaultCalibrator(readCalibrator(spaceSystem)); } else if (isStartElementWithName(ELEM_CONTEXT_CALIBRATOR_LIST)) { floatDataEncoding.setContextCalibratorList(readContextCalibratorList(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { // Not in XTCE, but allowed by Yamcs floatDataEncoding.setStringEncoding(readStringDataEncoding(spaceSystem).build()); } else if (isEndElementWithName(ELEM_FLOAT_DATA_ENCODING)) { return floatDataEncoding; } else { logUnknown(); } } } private List readNumericContextAlarmList(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_CONTEXT_ALARM_LIST); List contextAlarmList = new ArrayList<>(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_CONTEXT_ALARM)) { contextAlarmList.add(readNumericContextAlarm(spaceSystem)); } else if (isEndElementWithName(ELEM_CONTEXT_ALARM_LIST)) { return contextAlarmList; } } } private NumericAlarm readDefaultAlarm() throws XMLStreamException { NumericAlarm na = new NumericAlarm(); readAlarmAttributes(na); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isEndElementWithName(ELEM_DEFAULT_ALARM)) { return na; } else if (xmlEvent.getEventType() == XMLStreamConstants.START_ELEMENT) { readNumericAlarmElement(na); } } } private NumericContextAlarm readNumericContextAlarm(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_CONTEXT_ALARM); NumericContextAlarm nca = new NumericContextAlarm(); readAlarmAttributes(nca); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_CONTEXT_MATCH)) { nca.setContextMatch(readMatchCriteria(spaceSystem, null)); } else if (xmlEvent.getEventType() == XMLStreamConstants.START_ELEMENT) { readNumericAlarmElement(nca); } else if (isEndElementWithName(ELEM_CONTEXT_ALARM)) { return nca; } else { logUnknown(); } } } private void readNumericAlarmElement(NumericAlarm numericAlarm) throws XMLStreamException { if (isStartElementWithName(ELEM_STATIC_ALARM_RANGES)) { numericAlarm.setStaticAlarmRanges(readAlarmRanges()); } } private AlarmRanges readAlarmRanges() throws XMLStreamException { String tag = xmlEvent.asStartElement().getName().getLocalPart(); AlarmRanges ar = new AlarmRanges(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName("WatchRange")) { ar.addWatchRange(readFloatRange()); } else if (isStartElementWithName("WarningRange")) { ar.addWarningRange(readFloatRange()); } else if (isStartElementWithName("DistressRange")) { ar.addDistressRange(readFloatRange()); } else if (isStartElementWithName("CriticalRange")) { ar.addCriticalRange(readFloatRange()); } else if (isStartElementWithName("SevereRange")) { ar.addSevereRange(readFloatRange()); } else if (isEndElementWithName(tag)) { return ar; } } } private DoubleRange readFloatRange() throws XMLStreamException { StartElement element = xmlEvent.asStartElement(); double minExclusive = readDoubleAttribute("minExclusive", element, Double.NaN); double maxExclusive = readDoubleAttribute("maxExclusive", element, Double.NaN); double minInclusive = readDoubleAttribute("minInclusive", element, Double.NaN); double maxInclusive = readDoubleAttribute("maxInclusive", element, Double.NaN); return DoubleRange.fromXtceComplement(minExclusive, maxExclusive, minInclusive, maxInclusive); } private FloatValidRange readFloatValidRange() throws XMLStreamException { StartElement element = xmlEvent.asStartElement(); FloatValidRange fvr = new FloatValidRange(readFloatRange()); boolean calib = readBooleanAttribute("validRangeAppliesToCalibrated", element, true); fvr.setValidRangeAppliesToCalibrated(calib); return fvr; } private IntegerRange readIntegerRange(boolean signed) throws XMLStreamException { StartElement element = xmlEvent.asStartElement(); long minInclusive = readLongAttribute("minInclusive", element, signed ? Long.MIN_VALUE : 0); long maxInclusive = readLongAttribute("maxInclusive", element, Long.MAX_VALUE); return new IntegerRange(minInclusive, maxInclusive); } private IntegerValidRange readIntegerValidRange(boolean signed) throws XMLStreamException { StartElement element = xmlEvent.asStartElement(); IntegerValidRange ivr = new IntegerValidRange(readIntegerRange(signed)); boolean calib = readBooleanAttribute("validRangeAppliesToCalibrated", element, true); ivr.setValidRangeAppliesToCalibrated(calib); return ivr; } private IntegerValidRange readIntegerValidRangeSet(boolean signed) throws XMLStreamException { log.trace(ELEM_VALID_RANGE_SET); StartElement element = xmlEvent.asStartElement(); boolean calib = readBooleanAttribute("validRangeAppliesToCalibrated", element, true); IntegerValidRange ivr = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_VALID_RANGE)) { if (ivr != null) { throw new XMLStreamException("Only one ValidRange supported. ", xmlEvent.getLocation()); } ivr = readIntegerValidRange(signed); } else if (isEndElementWithName(ELEM_VALID_RANGE_SET)) { if (ivr == null) { throw new XMLStreamException("No ValidRange supecified ", xmlEvent.getLocation()); } ivr.setValidRangeAppliesToCalibrated(calib); return ivr; } } } private FloatValidRange readFloatValidRangeSet() throws XMLStreamException { log.trace(ELEM_VALID_RANGE_SET); StartElement element = xmlEvent.asStartElement(); boolean calib = readBooleanAttribute("validRangeAppliesToCalibrated", element, true); FloatValidRange fvr = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_VALID_RANGE)) { if (fvr != null) { throw new XMLStreamException("Only one ValidRange supported. ", xmlEvent.getLocation()); } fvr = readFloatValidRange(); } else if (isEndElementWithName(ELEM_VALID_RANGE_SET)) { if (fvr == null) { throw new XMLStreamException("No ValidRange specified ", xmlEvent.getLocation()); } fvr.setValidRangeAppliesToCalibrated(calib); return fvr; } } } private NumberFormatType readToString() throws XMLStreamException { log.trace(ELEM_TO_STRING); NumberFormatType numberFormat = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_NUMBER_FORMAT)) { if (numberFormat != null) { throw new XMLStreamException("Only one NumberFormat supported", xmlEvent.getLocation()); } numberFormat = readNumberFormat(); } else if (isEndElementWithName(ELEM_TO_STRING)) { if (numberFormat == null) { throw new XMLStreamException("No NumberFormat specified", xmlEvent.getLocation()); } return numberFormat; } } } private NumberFormatType readNumberFormat() throws XMLStreamException { log.trace(ELEM_NUMBER_FORMAT); StartElement element = xmlEvent.asStartElement(); NumberFormatType format = new NumberFormatType(); String numberBase = readAttribute("numberBase", element, "Decimal"); format.setNumberBase(RadixType.valueOf(numberBase.toUpperCase())); int minimumFractionDigits = readIntAttribute("minimumFractionDigits", element, 0); format.setMinimumFractionDigits(minimumFractionDigits); String value = readAttribute("maximumFractionDigits", element, null); if (value != null) { format.setMaximumFractionDigits(Integer.parseInt(value)); } int minimumIntegerDigits = readIntAttribute("minimumIntegerDigits", element, 1); format.setMinimumIntegerDigits(minimumIntegerDigits); value = readAttribute("maximumIntegerDigits", element, null); if (value != null) { format.setMaximumIntegerDigits(Integer.parseInt(value)); } String negativeSuffix = readAttribute("negativeSuffix", element, ""); format.setNegativeSuffix(negativeSuffix.isEmpty() ? null : negativeSuffix); String positiveSuffix = readAttribute("positiveSuffix", element, ""); format.setPositiveSuffix(positiveSuffix.isEmpty() ? null : positiveSuffix); String negativePrefix = readAttribute("negativePrefix", element, "-"); format.setNegativePrefix(negativePrefix.isEmpty() ? null : negativePrefix); String positivePrefix = readAttribute("positivePrefix", element, ""); format.setPositivePrefix(positivePrefix.isEmpty() ? null : positivePrefix); boolean showThousandsGrouping = readBooleanAttribute("showThousandsGrouping", element, false); format.setShowThousandsGrouping(showThousandsGrouping); String notation = readAttribute("notation", element, "normal"); format.setNotation(FloatingPointNotationType.valueOf(notation.toUpperCase())); return format; } private void readAlarmAttributes(AlarmType alarm) { String value = readAttribute("minViolations", xmlEvent.asStartElement(), null); if (value != null) { int minViolations = Integer.parseInt(value); alarm.setMinViolations(minViolations); } } private IncompleteType readBinaryParameterType(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_BINARY_PARAMETER_TYPE); StartElement element = checkStartElementPreconditions(); BinaryParameterType.Builder typeBuilder = new BinaryParameterType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readParameterBaseTypeAttributes(spaceSystem, element, incompleteType); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isNamedItemProperty()) { readNamedItemProperty(typeBuilder); } else if (isStartElementWithName(ELEM_UNIT_SET)) { typeBuilder.addAllUnits(readUnitSet()); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { typeBuilder.setEncoding(readBinaryDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING)) { typeBuilder.setEncoding(readIntegerDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { throw new XMLStreamException("Encoding " + xmlEvent.asStartElement().getName().getLocalPart() + " not supported for binary parameter", xmlEvent.getLocation()); } else if (isEndElementWithName(ELEM_BINARY_PARAMETER_TYPE)) { return incompleteType; } else { logUnknown(); } } } private BinaryDataEncoding.Builder readBinaryDataEncoding(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_BINARY_DATA_ENCODING); checkStartElementPreconditions(); String tag = xmlEvent.asStartElement().getName().getLocalPart(); BinaryDataEncoding.Builder binaryDataEncoding = new BinaryDataEncoding.Builder(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_SIZE_IN_BITS)) { IntegerValue v = readIntegerValue(spaceSystem); if (v instanceof FixedIntegerValue) { binaryDataEncoding.setSizeInBits((int) ((FixedIntegerValue) v).getValue()); } else if (v instanceof DynamicIntegerValue) { if (v != IGNORED_DYNAMIC_VALUE) { binaryDataEncoding.setDynamicSize(((DynamicIntegerValue) v)); binaryDataEncoding.setType(BinaryDataEncoding.Type.DYNAMIC); } } else { throwException("Only FixedIntegerValue supported for sizeInBits"); } } else if (isStartElementWithName("FromBinaryTransformAlgorithm")) { binaryDataEncoding.setFromBinaryTransformAlgorithm(readCustomAlgorithm(spaceSystem, null)); } else if (isStartElementWithName("ToBinaryTransformAlgorithm")) { binaryDataEncoding.setToBinaryTransformAlgorithm(readCustomAlgorithm(spaceSystem, null)); } else if (isEndElementWithName(tag)) { return binaryDataEncoding; } } } private void throwException(String msg) throws XMLStreamException { throw new XMLStreamException(msg, xmlEvent.getLocation()); } private int readIntegerValue() throws XMLStreamException { checkStartElementPreconditions(); String tag = xmlEvent.asStartElement().getName().getLocalPart(); int sizeInBits = 0; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (xmlEvent.isCharacters()) { sizeInBits = getIntegerCharacter(); } else if (isEndElementWithName(tag)) { return sizeInBits; } } } int getIntegerCharacter() throws XMLStreamException { if (xmlEvent.isCharacters()) { String value = xmlEvent.asCharacters().getData(); try { return Integer.parseInt(value); } catch (NumberFormatException e) { throw new XMLStreamException("Cannot parse integer '" + value + "'", xmlEvent.getLocation()); } } else { throw new IllegalStateException(); } } private IncompleteType readStringParameterType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_INTEGER_PARAMETER_TYPE); StartElement element = checkStartElementPreconditions(); // name attribute StringParameterType.Builder typeBuilder = new StringParameterType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readParameterBaseTypeAttributes(spaceSystem, element, incompleteType); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_UNIT_SET)) { typeBuilder.addAllUnits(readUnitSet()); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { typeBuilder.setEncoding(readBinaryDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_CONTEXT_ALARM_LIST)) { skipXtceSection(ELEM_CONTEXT_ALARM_LIST); } else if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING) || isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { throw new XMLStreamException("Encoding " + xmlEvent.asStartElement().getName().getLocalPart() + " not supported for string parameter", xmlEvent.getLocation()); } else if (isEndElementWithName(ELEM_STRING_PARAMETER_TYPE)) { return incompleteType; } else { logUnknown(); } } } private StringDataEncoding.Builder readStringDataEncoding(SpaceSystem spaceSystem) throws XMLStreamException { checkStartElementPreconditions(); StringDataEncoding.Builder stringDataEncoding = new StringDataEncoding.Builder(); String encoding = readAttribute("encoding", xmlEvent.asStartElement(), null); if (encoding != null) { stringDataEncoding.setEncoding(encoding); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_SIZE_IN_BITS)) { readStringSizeInBits(spaceSystem, stringDataEncoding); } else if (isStartElementWithName(ELEM_VARIABLE)) { readVariableStringSize(spaceSystem, stringDataEncoding); } else if (isEndElementWithName(ELEM_STRING_DATA_ENCODING)) { if (stringDataEncoding.getSizeType() == null) { throw new XMLStreamException( ELEM_SIZE_IN_BITS + " or " + ELEM_VARIABLE + " not specified for the StringDataEncoding", xmlEvent.getLocation()); } return stringDataEncoding; } } } private void readStringSizeInBits(SpaceSystem spaceSystem, StringDataEncoding.Builder stringDataEncoding) throws XMLStreamException { checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_FIXED)) { IntegerValue v = readIntegerValue(spaceSystem); if (v instanceof FixedIntegerValue) { stringDataEncoding.setSizeType(SizeType.FIXED); stringDataEncoding.setSizeInBits((int) ((FixedIntegerValue) v).getValue()); } else { throwException("Only FixedValue supported for string size in bits"); } } else if (isStartElementWithName(ELEM_TERMINATION_CHAR)) { stringDataEncoding.setSizeType(SizeType.TERMINATION_CHAR); byte[] x = readHexBinary(); if (x == null || x.length != 1) { throwException("Terminated strings have to have the size of the termination character of 1"); } stringDataEncoding.setTerminationChar(x[0]); } else if (isStartElementWithName(ELEM_LEADING_SIZE)) { stringDataEncoding.setSizeType(SizeType.LEADING_SIZE); int sizeInBits = readIntAttribute("sizeInBitsOfSizeTag", xmlEvent.asStartElement(), 16); stringDataEncoding.setSizeInBitsOfSizeTag(sizeInBits); } else if (isEndElementWithName(ELEM_SIZE_IN_BITS)) { return; } } } private void readVariableStringSize(SpaceSystem spaceSystem, StringDataEncoding.Builder stringDataEncoding) throws XMLStreamException { checkStartElementPreconditions(); int maxSizeInBits = readIntAttribute("maxSizeInBits", xmlEvent.asStartElement()); stringDataEncoding.setMaxSizeInBits(maxSizeInBits); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_DYNAMIC_VALUE)) { DynamicIntegerValue div = readDynamicValue(spaceSystem); if (div != IGNORED_DYNAMIC_VALUE) { stringDataEncoding.setSizeType(SizeType.FIXED); stringDataEncoding.setDynamicBufferSize(div); } } else if (isStartElementWithName(ELEM_TERMINATION_CHAR)) { stringDataEncoding.setSizeType(SizeType.TERMINATION_CHAR); byte[] x = readHexBinary(); if (x == null || x.length != 1) { throwException("Terminated strings have to have the size of the termination character of 1"); } stringDataEncoding.setTerminationChar(x[0]); } else if (isStartElementWithName(ELEM_LEADING_SIZE)) { stringDataEncoding.setSizeType(SizeType.LEADING_SIZE); int sizeInBits = readIntAttribute("sizeInBitsOfSizeTag", xmlEvent.asStartElement(), 16); stringDataEncoding.setSizeInBitsOfSizeTag(sizeInBits); } else if (isEndElementWithName(ELEM_VARIABLE)) { return; } } } private byte[] readHexBinary() throws XMLStreamException { checkStartElementPreconditions(); String tag = xmlEvent.asStartElement().getName().getLocalPart(); byte[] b = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (xmlEvent.isCharacters()) { b = HexUtils.unhex(xmlEvent.asCharacters().getData()); } else if (isEndElementWithName(tag)) { return b; } } } private IncompleteType readIntegerParameterType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_INTEGER_PARAMETER_TYPE); StartElement element = checkStartElementPreconditions(); IntegerParameterType.Builder typeBuilder = new IntegerParameterType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readParameterBaseTypeAttributes(spaceSystem, element, incompleteType); int sizeInBits = readIntAttribute(ATTR_SIZE_IN_BITS, element, 32); typeBuilder.setSizeInBits(sizeInBits); String value = readAttribute("signed", element, null); if (value != null) { boolean signed = Boolean.parseBoolean(value); typeBuilder.setSigned(signed); } value = readAttribute(ATTR_INITIAL_VALUE, element, null); if (value != null) { typeBuilder.setInitialValue(value); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING)) { typeBuilder.setEncoding(readIntegerDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { typeBuilder.setEncoding(readFloatDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { throw new XMLStreamException("Cannot use a binary data encoding for integer parameters"); } else if (isStartElementWithName(ELEM_DEFAULT_ALARM)) { typeBuilder.setDefaultAlarm(readDefaultAlarm()); } else if (isStartElementWithName(ELEM_CONTEXT_ALARM_LIST)) { typeBuilder.setNumericContextAlarmList(readNumericContextAlarmList(spaceSystem)); } else if (isStartElementWithName(ELEM_VALID_RANGE)) { typeBuilder.setValidRange(readIntegerValidRange(typeBuilder.isSigned())); } else if (isStartElementWithName(ELEM_TO_STRING)) { typeBuilder.setNumberFormat(readToString()); } else if (isEndElementWithName(ELEM_INTEGER_PARAMETER_TYPE)) { return incompleteType; } else { logUnknown(); } } } private IntegerDataEncoding.Builder readIntegerDataEncoding(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_INTEGER_DATA_ENCODING); StartElement element = checkStartElementPreconditions(); IntegerDataEncoding.Builder integerDataEncoding = null; Integer sizeInBits = null; if (hasAttribute(ATTR_SIZE_IN_BITS, element)) { sizeInBits = readIntAttribute(ATTR_SIZE_IN_BITS, element); if (sizeInBits < 0 || sizeInBits > 64) { throw new XMLStreamException( "Invalid sizeInBits " + sizeInBits + " specified for integer data encoding. Supported are between 0 and 64.", xmlEvent.getLocation()); } } ByteOrder byteOrder = readByteOrder(); integerDataEncoding = new IntegerDataEncoding.Builder() .setSizeInBits(sizeInBits) .setByteOrder(byteOrder); // encoding attribute String value = readAttribute("encoding", element, null); if (value != null) { if ("unsigned".equalsIgnoreCase(value)) { integerDataEncoding.setEncoding(IntegerDataEncoding.Encoding.UNSIGNED); } else if ("signMagnitude".equalsIgnoreCase(value)) { integerDataEncoding.setEncoding(IntegerDataEncoding.Encoding.SIGN_MAGNITUDE); } else if ("twosComplement".equalsIgnoreCase(value)) { integerDataEncoding.setEncoding(IntegerDataEncoding.Encoding.TWOS_COMPLEMENT); } else if ("twosCompliment".equalsIgnoreCase(value)) { // Tolerate this misspelling. It was part of XTCE v1.0 and v1.1 (fixed in v1.2) integerDataEncoding.setEncoding(IntegerDataEncoding.Encoding.TWOS_COMPLEMENT); } else if ("onesComplement".equalsIgnoreCase(value)) { integerDataEncoding.setEncoding(IntegerDataEncoding.Encoding.ONES_COMPLEMENT); } else if ("onesCompliment".equalsIgnoreCase(value)) { // Tolerate this misspelling. It was part of XTCE v1.0 and v1.1 (fixed in v1.2) integerDataEncoding.setEncoding(IntegerDataEncoding.Encoding.ONES_COMPLEMENT); } else if ("string".equalsIgnoreCase(value)) { integerDataEncoding.setEncoding(IntegerDataEncoding.Encoding.STRING); } else { throwException("Unsupported encoding '" + value + "'"); } } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_DEFAULT_CALIBRATOR)) { integerDataEncoding.setDefaultCalibrator(readCalibrator(spaceSystem)); } else if (isStartElementWithName(ELEM_CONTEXT_CALIBRATOR_LIST)) { integerDataEncoding.setContextCalibratorList(readContextCalibratorList(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { // Not in XTCE, but allowed by Yamcs integerDataEncoding.setStringEncoding(readStringDataEncoding(spaceSystem).build()); } else if (isEndElementWithName(ELEM_INTEGER_DATA_ENCODING)) { return integerDataEncoding; } else { logUnknown(); } } } private ByteOrder readByteOrder() throws XMLStreamException { String byteOrderStr = readAttribute("byteOrder", xmlEvent.asStartElement(), null); if (byteOrderStr == null) { return null; } ByteOrder byteOrder = ByteOrder.BIG_ENDIAN; if ("mostSignificantByteFirst".equals(byteOrderStr)) { byteOrder = ByteOrder.BIG_ENDIAN; } else if ("leastSignificantByteFirst".equals(byteOrderStr)) { byteOrder = ByteOrder.LITTLE_ENDIAN; } else { throw new XMLStreamException( "Unsupported byteOrder '" + byteOrderStr + "' specified for integer data encoding. Supported are mostSignificantByteFirst or leastSignificantByteFirst.", xmlEvent.getLocation()); } return byteOrder; } private List readContextCalibratorList(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_CONTEXT_CALIBRATOR_LIST); checkStartElementPreconditions(); List clist = new ArrayList<>(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_CONTEXT_CALIBRATOR)) { clist.add(readContextCalibrator(spaceSystem)); } else if (isEndElementWithName(ELEM_CONTEXT_CALIBRATOR_LIST)) { return clist; } else { logUnknown(); } } } private Calibrator readCalibrator(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_DEFAULT_CALIBRATOR); checkStartElementPreconditions(); String tag = xmlEvent.asStartElement().getName().getLocalPart(); Calibrator calibrator = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_POLYNOMIAL_CALIBRATOR)) { calibrator = readPolynomialCalibrator(); } else if (isStartElementWithName(ELEM_MATH_OPERATION_CALIBRATOR)) { calibrator = (Calibrator) readMathOperation(spaceSystem, null); } else if (isStartElementWithName(ELEM_SPLINE_CALIBRATOR)) { calibrator = readSplineCalibrator(); } else if (isEndElementWithName(tag)) { return calibrator; } } } // reads a math operation either as part of an algorithm (when algo is not null) // or as part of a calibration private MathOperation readMathOperation(SpaceSystem spaceSystem, MathAlgorithm algo) throws XMLStreamException { String tag = xmlEvent.asStartElement().getName().getLocalPart(); List list = new ArrayList<>(); String refName = null; if (algo != null) { refName = readMandatoryAttribute("outputParameterRef", xmlEvent.asStartElement()); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_VALUE_OPERAND)) { list.add(new MathOperation.Element(readDouble())); } else if (isStartElementWithName("ThisParameterOperand")) { if (algo != null) { throw new XMLStreamException("Cannot reference 'ThisParameter' in algorithms.", xmlEvent.getLocation()); } skipToTheEnd("ThisParameterOperand"); list.add(new MathOperation.Element()); } else if (isStartElementWithName("ParameterInstanceRefOperand")) { if (algo == null) { throw new XMLStreamException("Cannot reference other paramters in calibrations." + " Use 'ThisParameterOperand' to refer to the parameter to be calibrated ", xmlEvent.getLocation()); } ParameterInstanceRef pref = readParameterInstanceRef(spaceSystem, null); pref.setRelativeTo(InstanceRelativeTo.PACKET_START_ACROSS_PACKETS); algo.addInput(new InputParameter(pref)); list.add(new MathOperation.Element(pref)); } else if (isStartElementWithName("Operator")) { list.add(new MathOperation.Element(readMathOperator())); } else if (isStartElementWithName(ELEM_TRIGGER_SET)) { if (algo == null) { throw new XMLStreamException("Cannot specify a trigger set for a calibration"); } algo.setTriggerSet(readTriggerSet(spaceSystem)); } else if (isEndElementWithName(tag)) { break; } } if (algo != null) { TriggeredMathOperation trigMathOp = new TriggeredMathOperation(list); NameReference nr = new NameReference(refName, Type.PARAMETER).addResolvedAction(nd -> { algo.addOutput(new OutputParameter((Parameter) nd)); }); spaceSystem.addUnresolvedReference(nr); algo.setMathOperation(trigMathOp); return trigMathOp; } else { return new MathOperationCalibrator(list); } } private TriggerSetType readTriggerSet(SpaceSystem spaceSystem) throws XMLStreamException { String tag = xmlEvent.asStartElement().getName().getLocalPart(); TriggerSetType triggerSet = new TriggerSetType(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName("OnParameterUpdateTrigger")) { triggerSet.addOnParameterUpdateTrigger(readOnParameterUpdateTrigger(spaceSystem)); } else if (isStartElementWithName("OnContainerUpdateTrigger")) { throw new XMLStreamException("OnContainerUpdateTrigger not implemented", xmlEvent.getLocation()); } else if (isStartElementWithName("OnPeriodicRateTrigger")) { triggerSet.addOnPeriodicRateTrigger(readOnPeriodicRateTrigger(spaceSystem)); } else if (isEndElementWithName(tag)) { return triggerSet; } } } private OnParameterUpdateTrigger readOnParameterUpdateTrigger(SpaceSystem spaceSystem) throws XMLStreamException { String refName = null; refName = readMandatoryAttribute(ATTR_PARAMETER_REF, xmlEvent.asStartElement()); OnParameterUpdateTrigger trigger = new OnParameterUpdateTrigger(); NameReference nr = new NameReference(refName, Type.PARAMETER).addResolvedAction(nd -> { trigger.setParameter((Parameter) nd); }); spaceSystem.addUnresolvedReference(nr); return trigger; } private OnPeriodicRateTrigger readOnPeriodicRateTrigger(SpaceSystem spaceSystem) throws XMLStreamException { double d = readDoubleAttribute("fireRateInSeconds", xmlEvent.asStartElement()); OnPeriodicRateTrigger trigger = new OnPeriodicRateTrigger((long) (1000 * d)); return trigger; } private double parseDouble(String value) throws XMLStreamException { try { return Double.parseDouble(value); } catch (Exception e) { throw new XMLStreamException("Cannot parse double value '" + value + "'", xmlEvent.getLocation()); } } private MathOperator readMathOperator() throws XMLStreamException { String tag = xmlEvent.asStartElement().getName().getLocalPart(); MathOperator m = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (xmlEvent.isCharacters()) { m = MathOperator.fromXtceName(xmlEvent.asCharacters().getData()); } else if (isEndElementWithName(tag)) { return m; } } } private ContextCalibrator readContextCalibrator(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_CONTEXT_CALIBRATOR); checkStartElementPreconditions(); MatchCriteria context = null; Calibrator calibrator = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_CONTEXT_MATCH)) { context = readMatchCriteria(spaceSystem, null); } else if (isStartElementWithName(ELEM_CALIBRATOR)) { calibrator = readCalibrator(spaceSystem); } else if (isEndElementWithName(ELEM_CONTEXT_CALIBRATOR)) { if (context == null) { throw new XMLStreamException("Invalid context calibrator, no context specified"); } if (calibrator == null) { throw new XMLStreamException("Invalid context calibrator, no calibrator specified", xmlEvent.getLocation()); } return new ContextCalibrator(context, calibrator); } } } /** * Instantiate the SplineCalibrator element. * * @return * @throws XMLStreamException */ private Calibrator readSplineCalibrator() throws XMLStreamException { log.trace(ELEM_SPLINE_CALIBRATOR); checkStartElementPreconditions(); ArrayList splinePoints = new ArrayList<>(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_SPLINE_POINT)) { splinePoints.add(readSplinePoint()); } else if (isEndElementWithName(ELEM_SPLINE_CALIBRATOR)) { return new SplineCalibrator(splinePoints); } } } /** * Instantiate SplinePoint element. This element has two required attributes: raw, calibrated * * @return * @throws XMLStreamException */ private SplinePoint readSplinePoint() throws XMLStreamException { log.trace(ELEM_SPLINE_POINT); checkStartElementPreconditions(); double raw = readDoubleAttribute("raw", xmlEvent.asStartElement()); double calibrated = readDoubleAttribute("calibrated", xmlEvent.asStartElement()); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isEndElementWithName(ELEM_SPLINE_POINT)) { return new SplinePoint(raw, calibrated); } else { logUnknown(); } } } private Calibrator readPolynomialCalibrator() throws XMLStreamException { log.trace(ELEM_POLYNOMIAL_CALIBRATOR); checkStartElementPreconditions(); int maxExponent = 0; HashMap polynome = new HashMap<>(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_TERM)) { XtceTerm term = readTerm(); if (term.getExponent() > maxExponent) { maxExponent = term.getExponent(); } polynome.put(term.getExponent(), term.getCoefficient()); } else if (isEndElementWithName(ELEM_POLYNOMIAL_CALIBRATOR)) { double[] coefficients = new double[maxExponent + 1]; for (Map.Entry entry : polynome.entrySet()) { coefficients[entry.getKey()] = entry.getValue(); } return new PolynomialCalibrator(coefficients); } else { logUnknown(); } } } private XtceTerm readTerm() throws XMLStreamException { log.trace(ELEM_TERM); checkStartElementPreconditions(); int exponent = readIntAttribute("exponent", xmlEvent.asStartElement()); double coefficient = readDoubleAttribute("coefficient", xmlEvent.asStartElement()); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isEndElementWithName(ELEM_TERM)) { return new XtceTerm(exponent, coefficient); } } } private List readUnitSet() throws IllegalStateException, XMLStreamException { log.trace(ELEM_UNIT_SET); List units = new ArrayList<>(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_UNIT)) { UnitType u = readUnit(); if (u != null) { units.add(u); } } else if (isEndElementWithName(ELEM_UNIT_SET)) { return units; } else { logUnknown(); } } } private Double readDouble() throws XMLStreamException { String tag = xmlEvent.asStartElement().getName().getLocalPart(); Double d = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (xmlEvent.isCharacters()) { d = parseDouble(xmlEvent.asCharacters().getData()); } else if (isEndElementWithName(tag)) { return d; } } } private UnitType readUnit() throws XMLStreamException { log.trace(ELEM_UNIT); checkStartElementPreconditions(); StartElement element = xmlEvent.asStartElement(); double powerValue = readDoubleAttribute("power", element, 1); String factorValue = readAttribute("factor", element, null); String descriptionValue = readAttribute("description", element, null); String unit; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (xmlEvent.isCharacters()) { unit = xmlEvent.asCharacters().getData(); break; } else if (isEndElementWithName(ELEM_UNIT)) { return null; } } UnitType unitType = new UnitType(unit); unitType.setPower(powerValue); if (factorValue != null) { unitType.setFactor(factorValue); } if (descriptionValue != null) { unitType.setDescription(descriptionValue); } return unitType; } private IncompleteType readEnumeratedParameterType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_ENUMERATED_PARAMETER_TYPE); StartElement element = checkStartElementPreconditions(); // name attribute EnumeratedParameterType.Builder typeBuilder = new EnumeratedParameterType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readParameterBaseTypeAttributes(spaceSystem, element, incompleteType); // initialValue attribute String value = readAttribute(ATTR_INITIAL_VALUE, element, null); if (value != null) { typeBuilder.setInitialValue(value); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING)) { typeBuilder.setEncoding(readIntegerDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { typeBuilder.setEncoding(readFloatDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { typeBuilder.setEncoding(readBinaryDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_ENUMERATION_LIST)) { readEnumerationList(typeBuilder); } else if (isStartElementWithName(ELEM_DEFAULT_ALARM)) { typeBuilder.setDefaultAlarm(readEnumerationAlarm(typeBuilder)); } else if (isStartElementWithName(ELEM_CONTEXT_ALARM_LIST)) { typeBuilder.setContextAlarmList(readEnumerationContextAlarmList(spaceSystem, typeBuilder)); } else if (isEndElementWithName(ELEM_ENUMERATED_PARAMETER_TYPE)) { return incompleteType; } else { logUnknown(); } } } private List readEnumerationContextAlarmList(SpaceSystem spaceSystem, EnumeratedDataType.Builder enumParamType) throws XMLStreamException { log.trace(ELEM_CONTEXT_ALARM_LIST); List contextAlarmList = new ArrayList<>(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_CONTEXT_ALARM)) { contextAlarmList.add(readEnumerationContextAlarm(spaceSystem, enumParamType)); } else if (isEndElementWithName(ELEM_CONTEXT_ALARM_LIST)) { return contextAlarmList; } else { logUnknown(); } } } private EnumerationContextAlarm readEnumerationContextAlarm(SpaceSystem spaceSystem, EnumeratedDataType.Builder enumParamType) throws XMLStreamException { log.trace(ELEM_CONTEXT_ALARM); EnumerationContextAlarm eca = new EnumerationContextAlarm(); readAlarmAttributes(eca); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_CONTEXT_MATCH)) { eca.setContextMatch(readMatchCriteria(spaceSystem, null)); } else if (xmlEvent.getEventType() == XMLStreamConstants.START_ELEMENT) { EnumerationAlarm a = readEnumerationAlarm(enumParamType); eca.setAlarmList(a.getAlarmList()); } else if (isEndElementWithName(ELEM_CONTEXT_ALARM)) { return eca; } else { logUnknown(); } } } private void readEnumerationList(EnumeratedDataType.Builder enumDataType) throws XMLStreamException { log.trace(ELEM_ENUMERATION_LIST); checkStartElementPreconditions(); // initialValue attribute String initialValue = readAttribute(ATTR_INITIAL_VALUE, xmlEvent.asStartElement(), null); if (initialValue != null) { enumDataType.setInitialValue(initialValue); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_ENUMERATION)) { readEnumeration(enumDataType); } else if (isStartElementWithName(ELEM_RANGE_ENUMERATION)) { enumDataType.addEnumerationRange(readRangeEnumeration()); } else if (isEndElementWithName(ELEM_ENUMERATION_LIST)) { return; } else { logUnknown(); } } } private EnumerationAlarm readEnumerationAlarm(EnumeratedDataType.Builder enumParamType) throws XMLStreamException { checkStartElementPreconditions(); String tag = xmlEvent.asStartElement().getName().getLocalPart(); EnumerationAlarm alarm = new EnumerationAlarm(); alarm.setMinViolations(readIntAttribute("minViolations", xmlEvent.asStartElement(), 1)); var defaultAlarmLevel = AlarmLevels.NORMAL; var defaultAlarmLevelString = readAttribute("defaultAlarmLevel", xmlEvent.asStartElement(), null); if (defaultAlarmLevelString != null) { defaultAlarmLevel = getAlarmLevel(defaultAlarmLevelString); } alarm.setDefaultAlarmLevel(defaultAlarmLevel); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName("EnumerationAlarm")) { String label = readAttribute("enumerationLabel", xmlEvent.asStartElement(), null); if (label == null) { label = readAttribute("enumerationValue", xmlEvent.asStartElement(), null); // XTCE 1.1 } if (label == null) { throw new XMLStreamException(fileName + ": error in definition of " + enumParamType.getName() + "EnumerationAlarm: no enumerationLabel specified", xmlEvent.getLocation()); } if (!enumParamType.hasLabel(label)) { throw new XMLStreamException("Reference to invalid enumeration label '" + label + "'"); } AlarmLevels level = getAlarmLevel(readMandatoryAttribute("alarmLevel", xmlEvent.asStartElement())); alarm.addAlarm(label, level); } else if (isEndElementWithName(tag)) { return alarm; } } } private AlarmLevels getAlarmLevel(String level) throws XMLStreamException { try { return AlarmLevels.fromXtce(level); } catch (IllegalArgumentException e) { String s = Arrays.stream(AlarmLevels.values()).map(al -> al.xtceName) .collect(Collectors.joining(", ", "[", "]")); throw new XMLStreamException("Invalid alarm level '" + level + "'; use one of: " + s); } } private ValueEnumerationRange readRangeEnumeration() throws XMLStreamException { log.trace(ELEM_RANGE_ENUMERATION); checkStartElementPreconditions(); boolean isMinInclusive = true; boolean isMaxInclusive = true; double min = 0.0; double max = 0.0; String value = readAttribute("maxInclusive", xmlEvent.asStartElement(), null); if (value != null) { max = parseDouble(value); isMaxInclusive = true; } value = readAttribute("minInclusive", xmlEvent.asStartElement(), null); if (value != null) { isMinInclusive = true; min = parseDouble(value); } value = readAttribute("maxExclusive", xmlEvent.asStartElement(), null); if (value != null) { max = parseDouble(value); isMaxInclusive = false; } value = readAttribute("minExclusive", xmlEvent.asStartElement(), null); if (value != null) { isMinInclusive = false; min = parseDouble(value); } value = readAttribute("label", xmlEvent.asStartElement(), null); if (value == null) { log.error("Attribute label is missing."); value = "UNDEF"; } ValueEnumerationRange range = new ValueEnumerationRange(min, max, isMinInclusive, isMaxInclusive, value); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isEndElementWithName(ELEM_RANGE_ENUMERATION)) { return range; } else { logUnknown(); } } } private void readEnumeration(EnumeratedDataType.Builder enumDataType) throws XMLStreamException { log.trace(ELEM_ENUMERATION); checkStartElementPreconditions(); StartElement element = xmlEvent.asStartElement(); long longValue = readLongAttribute("value", element); String label = readMandatoryAttribute("label", element); String description = readAttribute(ATTR_SHORT_DESCRIPTION, element, null); String maxValue = readAttribute("maxValue", element, null); if (maxValue != null) { double mvd = Double.parseDouble(maxValue); ValueEnumerationRange ver = new ValueEnumerationRange(longValue, mvd, true, true, label); ver.setDescription(description); enumDataType.addEnumerationRange(ver); } else { ValueEnumeration ve = new ValueEnumeration(longValue, label); ve.setDescription(description); enumDataType.addEnumerationValue(ve); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isEndElementWithName(ELEM_ENUMERATION)) { return; } else { logUnknown(); } } } /** * @param spaceSystem * */ private void readParameterSet(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_PARAMETER_SET); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_PARAMETER)) { readParameter(spaceSystem); // the parameter is registered inside } else if (isStartElementWithName(ELEM_PARAMETER_REF)) { skipXtceSection(ELEM_PARAMETER_REF); } else if (isEndElementWithName(ELEM_PARAMETER_SET)) { return; } else { logUnknown(); } } } /** * * @return Parameter instance * @throws IllegalStateException * @throws XMLStreamException */ private Parameter readParameter(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_PARAMETER); checkStartElementPreconditions(); Parameter parameter = null; // name StartElement element = xmlEvent.asStartElement(); String value = readMandatoryAttribute(ATTR_NAME, element); parameter = new Parameter(value); // by default in XTCE all parameters are persistent // when reading the properties, the persistence may be disabled for a parameter parameter.setPersistent(true); String initialValue = readAttribute(ATTR_INITIAL_VALUE, xmlEvent.asStartElement(), null); // parameterTypeRef value = readMandatoryAttribute("parameterTypeRef", element); ParameterType ptype = spaceSystem.getParameterType(value); if (ptype != null) { parameter.setParameterType(ptype); if (initialValue != null) { parameter.setInitialValue(ptype.convertType(initialValue)); } } else { final Parameter p = parameter; NameReference nr = new NameReference(value, Type.PARAMETER_TYPE).addResolvedAction(nd -> { ParameterType ptype1 = (ParameterType) nd; p.setParameterType(ptype1); if (initialValue != null) { p.setInitialValue(ptype1.convertType(initialValue)); } }); spaceSystem.addUnresolvedReference(nr); } // shortDescription parameter.setShortDescription(readAttribute(ATTR_SHORT_DESCRIPTION, element, null)); // register the parameter now, because parameter can refer to // self in the parameter properties spaceSystem.addParameter(parameter); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isNamedItemProperty()) { readNamedItemProperty(parameter); } else if (isStartElementWithName(ELEM_PARAMETER_PROPERTIES)) { readParameterProperties(spaceSystem, parameter); } else if (isEndElementWithName(ELEM_PARAMETER)) { return parameter; } else { logUnknown(); } } } private XtceParameterProperties readParameterProperties(SpaceSystem spaceSystem, Parameter p) throws XMLStreamException { log.trace(ELEM_PARAMETER_PROPERTIES); checkStartElementPreconditions(); String v = readAttribute("dataSource", xmlEvent.asStartElement(), null); if (v != null) { try { p.setDataSource(DataSource.valueOf(v.toUpperCase())); } catch (IllegalArgumentException e) { throw new XMLStreamException( "invalid dataSource '" + v + "'. Valid values: " + Stream.of(DataSource.values()) .map(ds -> ds.name().toLowerCase()) .collect(Collectors.joining(", "))); } } boolean persistence = readBooleanAttribute("persistence", xmlEvent.asStartElement(), true); p.setPersistent(persistence); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_VALIDITY_CONDITION)) { readMatchCriteria(spaceSystem, null); } else if (isStartElementWithName(ELEM_PHYSICAL_ADDRESS_SET)) { skipXtceSection(ELEM_PHYSICAL_ADDRESS_SET); } else if (isStartElementWithName(ELEM_SYSTEM_NAME)) { skipXtceSection(ELEM_SYSTEM_NAME); } else if (isStartElementWithName(ELEM_TIME_ASSOCIATION)) { skipXtceSection(ELEM_TIME_ASSOCIATION); } else if (isEndElementWithName(ELEM_PARAMETER_PROPERTIES)) { return null; } else { logUnknown(); } } } private RateInStream readRateInStream(SpaceSystem spaceSystem) throws XMLStreamException { checkStartElementPreconditions(); String basis = readAttribute("basis", xmlEvent.asStartElement(), null); if ((basis != null) && !"perSecond".equalsIgnoreCase(basis)) { throw new XMLStreamException("Currently unsupported rate in stream basis: " + basis); } long minInterval = -1; long maxInterval = -1; String v = readAttribute("minimumValue", xmlEvent.asStartElement(), null); if (v != null) { maxInterval = (long) (1000 / parseDouble(v)); } v = readAttribute("maximumValue", xmlEvent.asStartElement(), null); if (v != null) { minInterval = (long) (1000 / parseDouble(v)); } RateInStream ris = new RateInStream(minInterval, maxInterval); // read end element xmlEvent = xmlEventReader.nextEvent(); if (!isEndElementWithName(ELEM_DEFAULT_RATE_IN_STREAM)) { throw new IllegalStateException(ELEM_DEFAULT_RATE_IN_STREAM + " end element expected"); } return ris; } // if metaCmd is not null, it means this is referenced from a command verifier or transmission constraint and it can // reference command arguments or command history parameters private MatchCriteria readMatchCriteria(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { log.trace("MatchCriteria"); checkStartElementPreconditions(); String tag = xmlEvent.asStartElement().getName().getLocalPart(); MatchCriteria criteria = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_COMPARISON)) { criteria = readComparison(spaceSystem, metaCmd); } else if (isStartElementWithName(ELEM_COMPARISON_LIST)) { criteria = readComparisonList(spaceSystem, metaCmd); } else if (isStartElementWithName(ELEM_BOOLEAN_EXPRESSION)) { criteria = readBooleanExpression(spaceSystem, metaCmd); } else if (isStartElementWithName(ELEM_CUSTOM_ALGORITHM)) { skipXtceSection(ELEM_CUSTOM_ALGORITHM); } else if (isEndElementWithName(tag)) { return criteria; } else { logUnknown(); } } } // if metaCmd is not null, it means this is part of a command verifier or constraint so references to arguments and // command history are possible private ComparisonList readComparisonList(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { log.trace(ELEM_COMPARISON_LIST); checkStartElementPreconditions(); ComparisonList list = new ComparisonList(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_COMPARISON)) { list.addComparison(readComparison(spaceSystem, metaCmd)); } else if (isEndElementWithName(ELEM_COMPARISON_LIST)) { return list; } else { logUnknown(); } } } private BooleanExpression readBooleanExpression(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { log.trace(ELEM_BOOLEAN_EXPRESSION); checkStartElementPreconditions(); BooleanExpression expr = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_CONDITION)) { expr = readCondition(spaceSystem, metaCmd); } else if (isStartElementWithName(ELEM_AND_CONDITIONS)) { expr = readAndCondition(spaceSystem, metaCmd); } else if (isStartElementWithName(ELEM_OR_CONDITIONS)) { expr = readOrCondition(spaceSystem, metaCmd); } else if (isEndElementWithName(ELEM_BOOLEAN_EXPRESSION)) { if (expr == null) { throw new XMLStreamException( "BooleanExpression has to contain one of Condition, ANDedCondition or ORedCondition", xmlEvent.getLocation()); } return expr; } else { logUnknown(); } } } private ParameterValueChange readParameterValueChange(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_PARAMETER_VALUE_CHANGE); checkStartElementPreconditions(); ParameterValueChange pvc = new ParameterValueChange(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_PARAMETER_REF)) { Location xmlLocation = xmlEvent.getLocation(); CompletableFuture cf = new CompletableFuture<>(); pvc.setParameterRef(readParameterRef(spaceSystem, cf)); cf.thenAccept(ref -> { ParameterType ptype = ref.getParameter().getParameterType(); if (ref.getMemberPath() != null) { ptype = AggregateTypeUtil.getMemberType(ptype, ref.getMemberPath()); } if (!(ptype instanceof NumericParameterType)) { throwException(xmlLocation, "Invalid parameter of type " + ptype + " used in ParameterValuChange verifier; expecting a numeric parameter"); } }); } else if (isStartElementWithName(ELEM_CHANGE)) { double delta = readDoubleAttribute("value", xmlEvent.asStartElement()); if (delta == 0) { throwException(xmlEvent.getLocation(), "change value cannot be 0"); } pvc.setDelta(delta); } else if (isEndElementWithName(ELEM_PARAMETER_VALUE_CHANGE)) { if (pvc.getParameterRef() == null) { throw new XMLStreamException("ParameterValueChange has to contain a reference to a parameter", xmlEvent.getLocation()); } if (pvc.getDelta() == 0) { throw new XMLStreamException("ParameterValueChange has to contain a change value", xmlEvent.getLocation()); } return pvc; } else { logUnknown(); } } } // if metaCmd is not null, it means this is part of a command verifier or constraint so references to arguments and // command history are possible private Condition readCondition(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { log.trace(ELEM_CONDITION); checkStartElementPreconditions(); ParameterOrArgumentRef lValueRef = null, rValueRef = null; OperatorType comparisonOperator = null; String rvalue = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_PARAMETER_INSTANCE_REF)) { String paraRef = readMandatoryAttribute(ATTR_PARAMETER_REF, xmlEvent.asStartElement()); ParameterOrArgumentRef ref = paraRef.startsWith(YAMCS_CMDARG_SPACESYSTEM_NAME) ? readArgumentInstanceRef(spaceSystem, metaCmd) : readParameterInstanceRef(spaceSystem, null); if (lValueRef == null) { lValueRef = ref; } else { rValueRef = ref; } } else if (isStartElementWithName(ELEM_ARGUMENT_INSTANCE_REF)) { ArgumentInstanceRef ref = readArgumentInstanceRef(spaceSystem, metaCmd); if (lValueRef == null) { lValueRef = ref; } else { rValueRef = ref; } } else if (isStartElementWithName(ELEM_COMPARISON_OPERATOR)) { comparisonOperator = readComparisonOperator(); } else if (isStartElementWithName(ELEM_VALUE)) { rvalue = readStringBetweenTags(ELEM_VALUE); } else if (isEndElementWithName(ELEM_CONDITION)) { if (lValueRef == null) { throw new XMLStreamException("Condition without left value", xmlEvent.getLocation()); } if (comparisonOperator == null) { throw new XMLStreamException("Condition without comparison operator", xmlEvent.getLocation()); } Condition cond; if (rValueRef != null) { cond = new Condition(comparisonOperator, lValueRef, rValueRef); } else if (rvalue != null) { cond = new Condition(comparisonOperator, lValueRef, rvalue); } else { throw new XMLStreamException("Condition without right value", xmlEvent.getLocation()); } return cond; } else { logUnknown(); } } } private ORedConditions readOrCondition(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { log.trace(ELEM_OR_CONDITIONS); checkStartElementPreconditions(); ORedConditions cond = new ORedConditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_CONDITION)) { cond.addConditionExpression(readCondition(spaceSystem, metaCmd)); } else if (isStartElementWithName(ELEM_AND_CONDITIONS)) { cond.addConditionExpression(readAndCondition(spaceSystem, metaCmd)); } else if (isEndElementWithName(ELEM_OR_CONDITIONS)) { return cond; } else { logUnknown(); } } } private ANDedConditions readAndCondition(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { log.trace(ELEM_AND_CONDITIONS); checkStartElementPreconditions(); ANDedConditions cond = new ANDedConditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_CONDITION)) { cond.addConditionExpression(readCondition(spaceSystem, metaCmd)); } else if (isStartElementWithName(ELEM_OR_CONDITIONS)) { cond.addConditionExpression(readOrCondition(spaceSystem, metaCmd)); } else if (isEndElementWithName(ELEM_AND_CONDITIONS)) { return cond; } else { logUnknown(); } } } private OperatorType readComparisonOperator() throws XMLStreamException { Location loc = xmlEvent.getLocation(); String s = readStringBetweenTags(ELEM_COMPARISON_OPERATOR); try { return OperatorType.fromSymbol(s); } catch (IllegalArgumentException e) { throw new XMLStreamException("Unknown operator '" + s + "'", loc); } } /** * Reads the definition of the containers * * @param spaceSystem * * @return * @throws IllegalStateException * @throws XMLStreamException */ private void readContainerSet(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_CONTAINER_SET); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_SEQUENCE_CONTAINER)) { SequenceContainer sc = readSequenceContainer(spaceSystem); if (excludedContainers.contains(sc.getName())) { log.debug("Not adding '" + sc.getName() + "' to the SpaceSystem because excluded by configuration"); } else { spaceSystem.addSequenceContainer(sc); } } else if (isEndElementWithName(ELEM_CONTAINER_SET)) { return; } else { logUnknown(); } } } private SequenceContainer readSequenceContainer(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_SEQUENCE_CONTAINER); checkStartElementPreconditions(); String value = readMandatoryAttribute(ATTR_NAME, xmlEvent.asStartElement()); SequenceContainer seqContainer = new SequenceContainer(value); seqContainer.setShortDescription(readAttribute(ATTR_SHORT_DESCRIPTION, xmlEvent.asStartElement(), null)); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isNamedItemProperty()) { readNamedItemProperty(seqContainer); } else if (isStartElementWithName(ELEM_ENTRY_LIST)) { readEntryList(spaceSystem, seqContainer, null); } else if (isStartElementWithName(ELEM_BASE_CONTAINER)) { readBaseContainer(spaceSystem, seqContainer); } else if (isStartElementWithName(ELEM_DEFAULT_RATE_IN_STREAM)) { seqContainer.setRateInStream(readRateInStream(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_ENCODING)) { BinaryDataEncoding.Builder bde = readBinaryDataEncoding(spaceSystem); seqContainer.setSizeInBits(bde.getSizeInBits()); } else if (isEndElementWithName(ELEM_SEQUENCE_CONTAINER)) { return seqContainer; } else { logUnknown(); } } } private void readBaseContainer(SpaceSystem spaceSystem, SequenceContainer seqContainer) throws XMLStreamException { log.trace(ELEM_BASE_CONTAINER); StartElement element = checkStartElementPreconditions(); String refName = readMandatoryAttribute("containerRef", element); if (excludedContainers.contains(refName)) { log.debug("adding " + seqContainer.getName() + " to the list of the excluded containers because its parent is excluded"); excludedContainers.add(seqContainer.getName()); } else { // find base container in the set of already defined containers SequenceContainer baseContainer = spaceSystem.getSequenceContainer(refName); if (baseContainer != null) { seqContainer.setBaseContainer(baseContainer); } else { // must come from somewhere else final SequenceContainer finalsc = seqContainer; NameReference nr = new NameReference(refName, Type.SEQUENCE_CONTAINER) .addResolvedAction(nd -> { finalsc.setBaseContainer((SequenceContainer) nd); }); spaceSystem.addUnresolvedReference(nr); } } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_RESTRICTION_CRITERIA)) { MatchCriteria criteria = readMatchCriteria(spaceSystem, null); seqContainer.setRestrictionCriteria(criteria); } else if (isEndElementWithName(ELEM_BASE_CONTAINER)) { return; } else { logUnknown(); } } } private void readEntryList(SpaceSystem spaceSystem, Container container, MetaCommand mc) throws XMLStreamException { log.trace(ELEM_ENTRY_LIST); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); SequenceEntry entry = null; if (isStartElementWithName(ELEM_PARAMETER_REF_ENTRY)) { entry = readParameterRefEntry(spaceSystem); } else if (isStartElementWithName(ELEM_PARAMETER_SEGMENT_REF_ENTRY)) { skipXtceSection(ELEM_PARAMETER_SEGMENT_REF_ENTRY); } else if (isStartElementWithName(ELEM_CONTAINER_REF_ENTRY)) { entry = readContainerRefEntry(spaceSystem); } else if (isStartElementWithName(ELEM_CONTAINER_SEGMENT_REF_ENTRY)) { skipXtceSection(ELEM_CONTAINER_SEGMENT_REF_ENTRY); } else if (isStartElementWithName(ELEM_STREAM_SEGMENT_ENTRY)) { skipXtceSection(ELEM_STREAM_SEGMENT_ENTRY); } else if (isStartElementWithName(ELEM_INDIRECT_PARAMETER_REF_ENTRY)) { entry = readIndirectParameterRefEntry(spaceSystem); } else if (isStartElementWithName(ELEM_ARRAY_PARAMETER_REF_ENTRY)) { entry = readArrayParameterRefEntry(spaceSystem); } else if (isStartElementWithName(ELEM_ARGUMENT_REF_ENTRY)) { entry = readArgumentRefEntry(spaceSystem, mc); } else if (isStartElementWithName(ELEM_ARRAY_ARGUMENT_REF_ENTRY)) { skipXtceSection(ELEM_ARRAY_ARGUMENT_REF_ENTRY); } else if (isStartElementWithName(ELEM_FIXED_VALUE_ENTRY)) { entry = readFixedValueEntry(spaceSystem); } else if (isEndElementWithName(ELEM_ENTRY_LIST)) { return; } else { logUnknown(); } if (entry != null) { container.addEntry(entry); } } } private SequenceEntry readIndirectParameterRefEntry(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_INDIRECT_PARAMETER_REF_ENTRY); checkStartElementPreconditions(); String aliasNameSpace = readAttribute(ATTR_ALIAS_NAME_SPACE, xmlEvent.asStartElement(), null); IndirectParameterRefEntry indirectParameterRefEntry = new IndirectParameterRefEntry(0, ReferenceLocationType.PREVIOUS_ENTRY, null, aliasNameSpace); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_LOCATION_IN_CONTAINER_IN_BITS)) { readLocationInContainerInBits(indirectParameterRefEntry); } else if (isStartElementWithName(ELEM_PARAMETER_INSTANCE)) { ParameterInstanceRef ref = readParameterInstanceRef(spaceSystem, null); indirectParameterRefEntry.setParameterRef(ref); } else if (isEndElementWithName(ELEM_INDIRECT_PARAMETER_REF_ENTRY)) { if (indirectParameterRefEntry.getParameterRef() == null) { throw new XMLStreamException(ELEM_PARAMETER_INSTANCE + " not specified"); } return indirectParameterRefEntry; } else { logUnknown(); } } } private SequenceEntry readArrayParameterRefEntry(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_ARRAY_PARAMETER_REF_ENTRY); checkStartElementPreconditions(); String refName = readMandatoryAttribute(ATTR_PARAMETER_REF, xmlEvent.asStartElement()); SequenceEntry.ReferenceLocationType locationType = SequenceEntry.ReferenceLocationType.PREVIOUS_ENTRY; // default ArrayParameterEntry parameterEntry = new ArrayParameterEntry(0, locationType); final ArrayParameterEntry finalpe = parameterEntry; makeParameterReference(spaceSystem, refName, (param, path) -> { finalpe.setParameter(param); }); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_LOCATION_IN_CONTAINER_IN_BITS)) { readLocationInContainerInBits(parameterEntry); } else if (isStartElementWithName(ELEM_REPEAT_ENTRY)) { Repeat r = readRepeatEntry(spaceSystem); parameterEntry.setRepeatEntry(r); } else if (isStartElementWithName(ELEM_INCLUDE_CONDITION)) { parameterEntry.setIncludeCondition(readMatchCriteria(spaceSystem, null)); } else if (isStartElementWithName(ELEM_DIMENSION_LIST)) { parameterEntry.setSize(readDimensionList(spaceSystem)); } else if (isEndElementWithName(ELEM_ARRAY_PARAMETER_REF_ENTRY)) { return parameterEntry; } else { logUnknown(); } } } private List readDimensionList(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_DIMENSION_LIST); checkStartElementPreconditions(); List l = new ArrayList<>(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_DIMENSION)) { l.add(readDimension(spaceSystem)); } else if (isStartElementWithName(ELEM_SIZE)) { // FIXME not in XTCE ? l.add(readIntegerValue(spaceSystem)); } else if (isEndElementWithName(ELEM_DIMENSION_LIST)) { return l; } else { logUnknown(); } } } // Currently only reads an index range like 0..30 which is interpreted as // size: 31. private IntegerValue readDimension(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_DIMENSION); checkStartElementPreconditions(); IntegerValue endingIndex = null; IntegerValue startingIndex = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_STARTING_INDEX)) { startingIndex = readIntegerValue(spaceSystem); if (!(startingIndex instanceof FixedIntegerValue) || ((FixedIntegerValue) startingIndex).getValue() != 0) { throw new XMLStreamException( "Dimension indexes must be specified with FixedValue starting from 0 (partial array entries not supported)", xmlEvent.getLocation()); } } else if (isStartElementWithName(ELEM_ENDING_INDEX)) { endingIndex = readIntegerValue(spaceSystem); } else if (isEndElementWithName(ELEM_DIMENSION)) { if (endingIndex == null) { throw new XMLStreamException(ELEM_ENDING_INDEX + " not specified"); } if (endingIndex instanceof FixedIntegerValue) { long v = ((FixedIntegerValue) endingIndex).getValue(); return new FixedIntegerValue(v + 1); } else if (endingIndex instanceof DynamicIntegerValue) { DynamicIntegerValue div = (DynamicIntegerValue) endingIndex; div.setIntercept(div.getIntercept() + 1); } else { throw new IllegalArgumentException("Unknown type " + endingIndex.getClass()); } return endingIndex; } else { logUnknown(); } } } private SequenceEntry readParameterRefEntry(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_PARAMETER_REF_ENTRY); checkStartElementPreconditions(); String refName = readMandatoryAttribute(ATTR_PARAMETER_REF, xmlEvent.asStartElement()); SequenceEntry.ReferenceLocationType locationType = SequenceEntry.ReferenceLocationType.PREVIOUS_ENTRY; // default ParameterEntry parameterEntry = new ParameterEntry(0, locationType); final ParameterEntry finalpe = parameterEntry; NameReference nr = new NameReference(refName, Type.PARAMETER).addResolvedAction(nd -> { finalpe.setParameter((Parameter) nd); }); spaceSystem.addUnresolvedReference(nr); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_LOCATION_IN_CONTAINER_IN_BITS)) { readLocationInContainerInBits(parameterEntry); } else if (isStartElementWithName(ELEM_REPEAT_ENTRY)) { Repeat r = readRepeatEntry(spaceSystem); parameterEntry.setRepeatEntry(r); } else if (isStartElementWithName(ELEM_INCLUDE_CONDITION)) { parameterEntry.setIncludeCondition(readMatchCriteria(spaceSystem, null)); } else if (isEndElementWithName(ELEM_PARAMETER_REF_ENTRY)) { return parameterEntry; } else { logUnknown(); } } } private ContainerEntry readContainerRefEntry(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_CONTAINER_REF_ENTRY); checkStartElementPreconditions(); String refName = readMandatoryAttribute("containerRef", xmlEvent.asStartElement()); SequenceEntry.ReferenceLocationType locationType = SequenceEntry.ReferenceLocationType.PREVIOUS_ENTRY; // default SequenceContainer container = spaceSystem.getSequenceContainer(refName); ContainerEntry containerEntry = null; if (container != null) { containerEntry = new ContainerEntry(0, locationType, container); } else { containerEntry = new ContainerEntry(0, locationType); final ContainerEntry finalce = containerEntry; NameReference nr = new NameReference(refName, Type.SEQUENCE_CONTAINER).addResolvedAction(nd -> { finalce.setRefContainer((SequenceContainer) nd); }); spaceSystem.addUnresolvedReference(nr); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_LOCATION_IN_CONTAINER_IN_BITS)) { readLocationInContainerInBits(containerEntry); } else if (isStartElementWithName(ELEM_REPEAT_ENTRY)) { Repeat r = readRepeatEntry(spaceSystem); containerEntry.setRepeatEntry(r); } else if (isStartElementWithName(ELEM_INCLUDE_CONDITION)) { containerEntry.setIncludeCondition(readMatchCriteria(spaceSystem, null)); } else if (isEndElementWithName(ELEM_CONTAINER_REF_ENTRY)) { return containerEntry; } else { logUnknown(); } } } private Repeat readRepeatEntry(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_REPEAT_ENTRY); Repeat r = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_COUNT)) { r = new Repeat(readIntegerValue(spaceSystem)); } else if (isEndElementWithName(ELEM_REPEAT_ENTRY)) { return r; } } } private IntegerValue readIntegerValue(SpaceSystem spaceSystem) throws XMLStreamException { String tag = xmlEvent.asStartElement().getName().getLocalPart(); checkStartElementPreconditions(); IntegerValue v = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_FIXED_VALUE)) { v = new FixedIntegerValue(readIntegerValue()); } else if (isStartElementWithName(ELEM_DYNAMIC_VALUE)) { v = readDynamicValue(spaceSystem); } else if (isEndElementWithName(tag)) { return v; } else { logUnknown(); } } } private DynamicIntegerValue readDynamicValue(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_DYNAMIC_VALUE); checkStartElementPreconditions(); DynamicIntegerValue v = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_PARAMETER_INSTANCE_REF)) { String paramRef = readMandatoryAttribute(ATTR_PARAMETER_REF, xmlEvent.asStartElement()); if (YAMCS_IGNORE.equals(paramRef)) { v = IGNORED_DYNAMIC_VALUE; } else { v = new DynamicIntegerValue(readParameterInstanceRef(spaceSystem, null)); } } else if (isStartElementWithName(ELEM_ARGUMENT_INSTANCE_REF)) { v = new DynamicIntegerValue(readArgumentInstanceRef(spaceSystem, null)); } else if (isStartElementWithName(ELEM_LINEAR_ADJUSTMENT)) { if (v == null) { throw new XMLStreamException(ELEM_PARAMETER_INSTANCE_REF + " or " + ELEM_ARGUMENT_INSTANCE_REF + " has to be specified before " + ELEM_LINEAR_ADJUSTMENT); } LinearAdjusment ladj = readLinearAdjusment(); v.setIntercept((long) ladj.getIntercept()); v.setSlope((long) ladj.getSlope()); } else if (isEndElementWithName(ELEM_DYNAMIC_VALUE)) { if (v == null) { throw new XMLStreamException("No " + ELEM_PARAMETER_INSTANCE_REF + " section found"); } return v; } else { logUnknown(); } } } private LinearAdjusment readLinearAdjusment() throws XMLStreamException { log.trace(ELEM_LINEAR_ADJUSTMENT); StartElement startElement = checkStartElementPreconditions(); double intercept = readDoubleAttribute("intercept", startElement, 0.0); double slope = readDoubleAttribute("slope", startElement, 1.0); return new LinearAdjusment(intercept, slope); } // if resolveCf is not null, it will be called when the parameter reference has been resolved private ParameterInstanceRef readParameterInstanceRef(SpaceSystem spaceSystem, CompletableFuture resolvedCf) throws XMLStreamException { log.trace(ELEM_PARAMETER_INSTANCE_REF); StartElement startElement = checkStartElementPreconditions(); String paramRef = readMandatoryAttribute(ATTR_PARAMETER_REF, startElement); boolean useCalibrated = readBooleanAttribute("useCalibratedValue", startElement, true); int instance = readIntAttribute("instance", startElement, 0); final ParameterInstanceRef instanceRef = new ParameterInstanceRef(useCalibrated); instanceRef.setInstance(instance); instanceRef.setRelativeTo(InstanceRelativeTo.PACKET_START_WITHIN_PACKET); makeParameterReference(spaceSystem, paramRef, (para, path) -> { instanceRef.setParameter(para); instanceRef.setMemberPath(path); if (resolvedCf != null) { resolvedCf.complete(instanceRef); } }); return instanceRef; } private ArgumentInstanceRef readArgumentInstanceRef(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { StartElement startElement = checkStartElementPreconditions(); String argRef; if (ELEM_PARAMETER_INSTANCE_REF.equals(startElement.getName().getLocalPart()) || ELEM_INPUT_PARAMETER_INSTANCE_REF.equals(startElement.getName().getLocalPart())) { // special case: treat /yamcs/cmd/arg/ as argument reference // because XTCE does not allow argument references in command verifiers and transmission checks argRef = readMandatoryAttribute(ATTR_PARAMETER_REF, startElement) .substring(YAMCS_CMDARG_SPACESYSTEM_NAME.length() + 1); } else { argRef = readMandatoryAttribute("argumentRef", startElement); } boolean useCalibrated = readBooleanAttribute("useCalibratedValue", startElement, true); ArgumentInstanceRef argInstRef = new ArgumentInstanceRef(); // If we are not in the context of a metacommand, such as an argument // that is used as the size of another argument type, then do not try // to resolve the argument. Instead, the name alone will be used to // look up the argument in context when needed. if (metaCmd == null) { argInstRef.setArgument(new Argument(argRef)); } else { ArgumentReference ref = ArgumentReference.getReference(metaCmd, argRef); ref.addResolvedAction((arg, path) -> { argInstRef.setArgument(arg); argInstRef.setMemberPath(path); return true; }); if (!ref.isResolved()) { spaceSystem.addUnresolvedReference(ref); } } argInstRef.setUseCalibratedValue(useCalibrated); return argInstRef; } // if resolveCf is not null, it will be called when the parameter reference has been resolved private ParameterInstanceRef readParameterRef(SpaceSystem spaceSystem, CompletableFuture resolvedCf) throws XMLStreamException { log.trace(ELEM_PARAMETER_REF); String paramRef = readMandatoryAttribute(ATTR_PARAMETER_REF, xmlEvent.asStartElement()); final ParameterInstanceRef instanceRef = new ParameterInstanceRef(); makeParameterReference(spaceSystem, paramRef, (para, path) -> { instanceRef.setParameter(para); instanceRef.setMemberPath(path); if (resolvedCf != null) { resolvedCf.complete(instanceRef); } }); return instanceRef; } private void readLocationInContainerInBits(SequenceEntry entry) throws XMLStreamException { log.trace(ELEM_LOCATION_IN_CONTAINER_IN_BITS); checkStartElementPreconditions(); int locationInContainerInBits = 0; ReferenceLocationType location; String value = readAttribute("referenceLocation", xmlEvent.asStartElement(), "previousEntry"); if (value.equalsIgnoreCase("previousEntry")) { location = ReferenceLocationType.PREVIOUS_ENTRY; } else if (value.equalsIgnoreCase("containerStart")) { location = ReferenceLocationType.CONTAINER_START; } else { throw new XMLStreamException("Currently unsupported reference location: " + value); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_FIXED_VALUE)) { locationInContainerInBits = readIntegerValue(); } else if (isStartElementWithName(ELEM_DYNAMIC_VALUE)) { skipXtceSection(ELEM_DYNAMIC_VALUE); } else if (isStartElementWithName(ELEM_DISCRETE_LOOKUP_LIST)) { skipXtceSection(ELEM_DISCRETE_LOOKUP_LIST); } else if (isEndElementWithName(ELEM_LOCATION_IN_CONTAINER_IN_BITS)) { entry.setLocation(location, locationInContainerInBits); return; } else { logUnknown(); } } } private Comparison readComparison(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { log.trace(ELEM_COMPARISON); checkStartElementPreconditions(); String ref = readMandatoryAttribute(ATTR_PARAMETER_REF, xmlEvent.asStartElement()); String value = readAttribute("comparisonOperator", xmlEvent.asStartElement(), null); if (value == null) { value = "=="; // default value } OperatorType optype = OperatorType.fromSymbol(value); String theValue; theValue = readMandatoryAttribute("value", xmlEvent.asStartElement()); boolean useCalibratedValue = readBooleanAttribute("useCalibratedValue", xmlEvent.asStartElement(), true); Comparison comparison; if (ref.startsWith(YAMCS_CMDARG_SPACESYSTEM_NAME)) { if (metaCmd == null) { throw new XtceLoadException(fileName, xmlEvent.getLocation(), "Cannot use reference to command arguments in comparisons not linked to commands"); } String argName = ref.substring(YAMCS_CMDARG_SPACESYSTEM_NAME.length() + 1); Argument arg = metaCmd.getArgument(argName); if (arg == null) { throw new XtceLoadException(fileName, xmlEvent.getLocation(), "No argument named '" + argName + "' for command" + metaCmd.getName()); } ArgumentInstanceRef instanceRef = new ArgumentInstanceRef(arg); comparison = new Comparison(instanceRef, theValue, optype); } else { final ParameterInstanceRef instanceRef = new ParameterInstanceRef(useCalibratedValue); comparison = new Comparison(instanceRef, theValue, optype); makeParameterReference(spaceSystem, ref, (p, path) -> { instanceRef.setParameter(p); instanceRef.setMemberPath(path); if (!(p instanceof SystemParameter)) { comparison.validateValueType(); } // else cannot validate system parameters because they don't have a type }); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isEndElementWithName(ELEM_COMPARISON)) { return comparison; } else { logUnknown(); } } } /** * Just skips the whole section. * * @return * @throws IllegalStateException * @throws XMLStreamException */ private XtceNotImplemented readMessageSet() throws IllegalStateException, XMLStreamException { skipXtceSection(ELEM_MESSAGE_SET); return null; } /** * Just skips the whole section. * * @return * @throws IllegalStateException * @throws XMLStreamException */ private XtceNotImplemented readStreamSet() throws IllegalStateException, XMLStreamException { skipXtceSection(ELEM_STREAM_SET); return null; } /** * Just skips the whole section. * * @param spaceSystem * * @return * @throws IllegalStateException * @throws XMLStreamException */ private void readAlgorithmSet(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_ALGORITHM_SET); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); Algorithm algo = null; if (isStartElementWithName(ELEM_MATH_ALGORITHM)) { algo = readMathAlgorithm(spaceSystem); } else if (isStartElementWithName(ELEM_CUSTOM_ALGORITHM)) { algo = readCustomAlgorithm(spaceSystem, null); } else if (isEndElementWithName(ELEM_ALGORITHM_SET)) { return; } if (algo != null) { spaceSystem.addAlgorithm(algo); } } } private MathAlgorithm readMathAlgorithm(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { checkStartElementPreconditions(); String value = readMandatoryAttribute(ATTR_NAME, xmlEvent.asStartElement()); MathAlgorithm algo = new MathAlgorithm(value); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_MATH_OPERATION)) { readMathOperation(spaceSystem, algo); } if (isNamedItemProperty()) { readNamedItemProperty(algo); } else if (isEndElementWithName(ELEM_MATH_ALGORITHM)) { return algo; } else { logUnknown(); } } } /** * Extraction of the TelemetryMetaData section * * @param spaceSystem * * @throws XMLStreamException */ private void readCommandMetaData(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_COMMAND_MEATA_DATA); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_PARAMETER_TYPE_SET)) { readParameterTypeSet(spaceSystem); } else if (isStartElementWithName(ELEM_PARAMETER_SET)) { readParameterSet(spaceSystem); } else if (isStartElementWithName(ELEM_ARGUMENT_TYPE_SET)) { readArgumentTypeSet(spaceSystem); } else if (isStartElementWithName(ELEM_META_COMMAND_SET)) { readMetaCommandSet(spaceSystem); } else if (isStartElementWithName(ELEM_COMMAND_CONTAINER_SET)) { readCommandContainerSet(spaceSystem); } else if (isStartElementWithName(ELEM_MESSAGE_SET)) { readMessageSet(); } else if (isStartElementWithName(ELEM_ALGORITHM_SET)) { readAlgorithmSet(spaceSystem); } else if (isEndElementWithName(ELEM_COMMAND_MEATA_DATA)) { return; } else { logUnknown(); } } } /** * @param spaceSystem * @throws XMLStreamException */ private void readArgumentTypeSet(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_ARGUMENT_TYPE_SET); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); IncompleteType incompleteType = null; if (isStartElementWithName(ELEM_BOOLEAN_ARGUMENT_TYPE)) { incompleteType = readBooleanArgumentType(spaceSystem); } else if (isStartElementWithName(ELEM_ENUMERATED_ARGUMENT_TYPE)) { incompleteType = readEnumeratedArgumentType(spaceSystem); } else if (isStartElementWithName(ELEM_FLOAT_ARGUMENT_TYPE)) { incompleteType = readFloatArgumentType(spaceSystem); } else if (isStartElementWithName(ELEM_INTEGER_ARGUMENT_TYPE)) { incompleteType = readIntegerArgumentType(spaceSystem); } else if (isStartElementWithName(ELEM_BINARY_ARGUMENT_TYPE)) { incompleteType = readBinaryArgumentType(spaceSystem); } else if (isStartElementWithName(ELEM_STRING_ARGUMENT_TYPE)) { incompleteType = readStringArgumentType(spaceSystem); } else if (isStartElementWithName(ELEM_AGGREGATE_ARGUMENT_TYPE)) { incompleteType = readAggregateArgumentType(spaceSystem); } else if (isStartElementWithName(ELEM_ABSOLUTE_TIME_ARGUMENT_TYPE)) { incompleteType = readAbsoluteTimeArgumentType(spaceSystem); } else if (isStartElementWithName(ELEM_ARRAY_ARGUMENT_TYPE)) { incompleteType = readArrayArgumentType(spaceSystem); } else { logUnknown(); } if (incompleteType != null) { incompleteType.scheduleCompletion(); } if (isEndElementWithName(ELEM_ARGUMENT_TYPE_SET)) { return; } else { logUnknown(); } } } private IncompleteType readBooleanArgumentType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_BOOLEAN_ARGUMENT_TYPE); StartElement element = checkStartElementPreconditions(); BooleanArgumentType.Builder typeBuilder = new BooleanArgumentType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readArgumentBaseTypeAttributes(spaceSystem, element, incompleteType); String initialValue = readAttribute(ATTR_INITIAL_VALUE, xmlEvent.asStartElement(), null); if (initialValue != null) { typeBuilder.setInitialValue(initialValue); } typeBuilder.setOneStringValue(readAttribute("oneStringValue", element, "True")); typeBuilder.setZeroStringValue(readAttribute("zeroStringValue", element, "False")); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING)) { typeBuilder.setEncoding(readIntegerDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { typeBuilder.setEncoding(readFloatDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { typeBuilder.setEncoding(readBinaryDataEncoding(spaceSystem)); } else if (isEndElementWithName(ELEM_BOOLEAN_ARGUMENT_TYPE)) { return incompleteType; } else { logUnknown(); } } } private IncompleteType readFloatArgumentType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_FLOAT_ARGUMENT_TYPE); StartElement element = checkStartElementPreconditions(); FloatArgumentType.Builder typeBuilder = new FloatArgumentType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readArgumentBaseTypeAttributes(spaceSystem, element, incompleteType); String value = readAttribute(ATTR_SIZE_IN_BITS, xmlEvent.asStartElement(), null); if (value != null) { int sizeInBits = Integer.parseInt(value); if (sizeInBits != 32 && sizeInBits != 64) { throw new XMLStreamException("Float encoding " + sizeInBits + " not supported;" + " Only 32 and 64 bits are supported", xmlEvent.getLocation()); } typeBuilder.setSizeInBits(sizeInBits); } String initialValue = readAttribute(ATTR_INITIAL_VALUE, xmlEvent.asStartElement(), null); if (initialValue != null) { typeBuilder.setInitialValue(initialValue); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING)) { typeBuilder.setEncoding(readIntegerDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { typeBuilder.setEncoding(readFloatDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { throw new XMLStreamException("Encoding " + xmlEvent.asStartElement().getName().getLocalPart() + " not supported for float argument", xmlEvent.getLocation()); } else if (isStartElementWithName(ELEM_VALID_RANGE)) { typeBuilder.setValidRange(readFloatValidRange()); } else if (isStartElementWithName(ELEM_VALID_RANGE_SET)) { typeBuilder.setValidRange(readFloatValidRangeSet()); } else if (isStartElementWithName(ELEM_TO_STRING)) { typeBuilder.setNumberFormat(readNumberFormat()); } else if (isEndElementWithName(ELEM_FLOAT_ARGUMENT_TYPE)) { return incompleteType; } else { logUnknown(); } } } private IncompleteType readEnumeratedArgumentType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_ENUMERATED_ARGUMENT_TYPE); StartElement element = checkStartElementPreconditions(); EnumeratedArgumentType.Builder typeBuilder = new EnumeratedArgumentType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readArgumentBaseTypeAttributes(spaceSystem, element, incompleteType); String initialValue = readAttribute(ATTR_INITIAL_VALUE, xmlEvent.asStartElement(), null); if (initialValue != null) { typeBuilder.setInitialValue(initialValue); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING)) { typeBuilder.setEncoding(readIntegerDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { typeBuilder.setEncoding(readFloatDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { typeBuilder.setEncoding(readBinaryDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_ENUMERATION_LIST)) { readEnumerationList(typeBuilder); } else if (isEndElementWithName(ELEM_ENUMERATED_ARGUMENT_TYPE)) { return incompleteType; } } } private IncompleteType readAggregateArgumentType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_AGGREGATE_ARGUMENT_TYPE); StartElement element = checkStartElementPreconditions(); AggregateArgumentType.Builder typeBuilder = new AggregateArgumentType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); String name = readMandatoryAttribute(ATTR_NAME, element); typeBuilder.setName(name); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_MEMBER_LIST)) { typeBuilder.addMembers(readMemberList(spaceSystem, false)); } else if (isEndElementWithName(ELEM_AGGREGATE_ARGUMENT_TYPE)) { return incompleteType; } else { logUnknown(); } } } private IncompleteType readIntegerArgumentType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_INTEGER_ARGUMENT_TYPE); StartElement element = checkStartElementPreconditions(); IntegerArgumentType.Builder typeBuilder = new IntegerArgumentType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readArgumentBaseTypeAttributes(spaceSystem, element, incompleteType); int sizeInBits = readIntAttribute(ATTR_SIZE_IN_BITS, xmlEvent.asStartElement(), 32); typeBuilder.setSizeInBits(sizeInBits); String value = readAttribute("signed", xmlEvent.asStartElement(), null); if (value != null) { boolean signed = Boolean.parseBoolean(value); typeBuilder.setSigned(signed); } String initialValue = readAttribute(ATTR_INITIAL_VALUE, xmlEvent.asStartElement(), null); if (initialValue != null) { typeBuilder.setInitialValue(initialValue); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING)) { typeBuilder.setEncoding(readIntegerDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { typeBuilder.setEncoding(readFloatDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { throw new XMLStreamException("Cannot use a binary data encoding for integer arguments"); } else if (isStartElementWithName(ELEM_VALID_RANGE)) {// XTCE 1.1 typeBuilder.setValidRange(readIntegerValidRange(typeBuilder.isSigned())); } else if (isStartElementWithName(ELEM_VALID_RANGE_SET)) {// XTCE 1.2 typeBuilder.setValidRange(readIntegerValidRangeSet(typeBuilder.isSigned())); } else if (isEndElementWithName(ELEM_INTEGER_ARGUMENT_TYPE)) { return incompleteType; } else { logUnknown(); } } } private IncompleteType readBinaryArgumentType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_BINARY_ARGUMENT_TYPE); StartElement element = checkStartElementPreconditions(); BinaryArgumentType.Builder typeBuilder = new BinaryArgumentType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readArgumentBaseTypeAttributes(spaceSystem, element, incompleteType); String initialValue = readAttribute(ATTR_INITIAL_VALUE, xmlEvent.asStartElement(), null); if (initialValue != null) { typeBuilder.setInitialValue(initialValue); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { typeBuilder.setEncoding(readBinaryDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isEndElementWithName(ELEM_BINARY_ARGUMENT_TYPE)) { return incompleteType; } else { logUnknown(); } } } private IncompleteType readStringArgumentType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_STRING_ARGUMENT_TYPE); StartElement element = checkStartElementPreconditions(); StringArgumentType.Builder typeBuilder = new StringArgumentType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readArgumentBaseTypeAttributes(spaceSystem, element, incompleteType); String initialValue = readAttribute(ATTR_INITIAL_VALUE, xmlEvent.asStartElement(), null); if (initialValue != null) { typeBuilder.setInitialValue(initialValue); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_STRING_DATA_ENCODING)) { typeBuilder.setEncoding(readStringDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_DATA_ENCODING)) { typeBuilder.setEncoding(readBinaryDataEncoding(spaceSystem)); } else if (isStartElementWithName(ELEM_SIZE_RANGE_IN_CHARACTERS)) { typeBuilder.setSizeRangeInCharacters(readIntegerRange(false)); } else if (isStartElementWithName(ELEM_CONTEXT_ALARM_LIST)) { skipXtceSection(ELEM_CONTEXT_ALARM_LIST); } else if (isStartElementWithName(ELEM_INTEGER_DATA_ENCODING) || isStartElementWithName(ELEM_FLOAT_DATA_ENCODING)) { throw new XMLStreamException("Encoding " + xmlEvent.asStartElement().getName().getLocalPart() + " not supported for string argument", xmlEvent.getLocation()); } else if (isEndElementWithName(ELEM_STRING_ARGUMENT_TYPE)) { return incompleteType; } else { logUnknown(); } } } private IncompleteType readAbsoluteTimeArgumentType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_ABSOLUTE_TIME_ARGUMENT_TYPE); StartElement element = checkStartElementPreconditions(); AbsoluteTimeArgumentType.Builder typeBuilder = new AbsoluteTimeArgumentType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); readArgumentBaseTypeAttributes(spaceSystem, element, incompleteType); String initialValue = readAttribute(ATTR_INITIAL_VALUE, xmlEvent.asStartElement(), null); if (initialValue != null) { typeBuilder.setInitialValue(initialValue); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readBaseTypeProperties(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_REFERENCE_TIME)) { typeBuilder.setReferenceTime(readReferenceTime(spaceSystem)); } else if (isStartElementWithName(ELEM_ENCODING)) { readEncoding(spaceSystem, typeBuilder); } else if (isEndElementWithName(ELEM_ABSOLUTE_TIME_ARGUMENT_TYPE)) { if (typeBuilder.getReferenceTime() == null) { throw new XMLStreamException("AbsoluteTimeArgumentType without a reference time not supported", xmlEvent.getLocation()); } return incompleteType; } else { logUnknown(); } } } private IncompleteType readArrayArgumentType(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_ARRAY_ARGUMENT_TYPE); StartElement element = checkStartElementPreconditions(); ArrayArgumentType.Builder typeBuilder = new ArrayArgumentType.Builder(); IncompleteType incompleteType = new IncompleteType(spaceSystem, typeBuilder); typeBuilder.setName(readMandatoryAttribute(ATTR_NAME, element)); typeBuilder.setShortDescription(readAttribute(ATTR_SHORT_DESCRIPTION, element, null)); String refName = readMandatoryAttribute("arrayTypeRef", xmlEvent.asStartElement()); NameReference nr = new NameReference(refName, Type.ARGUMENT_TYPE).addResolvedAction(nd -> { typeBuilder.setElementType((ArgumentType) nd); }); incompleteType.addReference(nr); spaceSystem.addUnresolvedReference(nr); String initialValue = readAttribute(ATTR_INITIAL_VALUE, xmlEvent.asStartElement(), null); if (initialValue != null) { typeBuilder.setInitialValue(initialValue); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (readNamedItemProperty(typeBuilder)) { continue; } else if (isStartElementWithName(ELEM_DIMENSION_LIST)) { List dimList = readDimensionList(spaceSystem); typeBuilder.setSize(dimList); } else if (isEndElementWithName(ELEM_ARRAY_ARGUMENT_TYPE)) { if (typeBuilder.getSize() == null) { throw new XMLStreamException(ELEM_DIMENSION_LIST + " not defined for the ArrayArgumentType " + typeBuilder.getName()); } return incompleteType; } else { logUnknown(); } } } /** * Reads the definition of the command containers * * @param spaceSystem * * @return * @throws IllegalStateException */ private void readCommandContainerSet(SpaceSystem spaceSystem) throws XMLStreamException { skipXtceSection(ELEM_COMMAND_CONTAINER_SET); } /** * Reads the definition of the metacommand containers * * @param spaceSystem * * @return * @throws IllegalStateException */ private void readMetaCommandSet(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_META_COMMAND_SET); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_META_COMMAND)) { MetaCommand mc = readMetaCommand(spaceSystem); if (excludedContainers.contains(mc.getName())) { log.debug("Not adding '{}' to the SpaceSystem because excluded by configuration", mc.getName()); } else { spaceSystem.addMetaCommand(mc); } } else if (isEndElementWithName(ELEM_META_COMMAND_SET)) { return; } } } private MetaCommand readMetaCommand(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_META_COMMAND); checkStartElementPreconditions(); MetaCommand mc = null; String value = readMandatoryAttribute(ATTR_NAME, xmlEvent.asStartElement()); mc = new MetaCommand(value); mc.setAbstract(readBooleanAttribute("abstract", xmlEvent.asStartElement(), false)); value = readAttribute(ATTR_SHORT_DESCRIPTION, xmlEvent.asStartElement(), null); if (value != null) { mc.setShortDescription(value); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isNamedItemProperty()) { readNamedItemProperty(mc); } else if (isStartElementWithName(ELEM_BASE_META_COMMAND)) { readBaseMetaCommand(spaceSystem, mc); } else if (isStartElementWithName(ELEM_COMMAND_CONTAINER)) { CommandContainer cc = readCommandContainer(spaceSystem, mc); mc.setCommandContainer(cc); spaceSystem.addCommandContainer(cc); } else if (isStartElementWithName(ELEM_ARGUMENT_LIST)) { readArgumentList(spaceSystem, mc); } else if (isStartElementWithName(ELEM_VERIFIER_SET)) { readVerifierSet(spaceSystem, mc); } else if (isStartElementWithName(ELEM_DEFAULT_SIGNIFICANCE)) { mc.setDefaultSignificance(readSignificance(spaceSystem)); } else if (isStartElementWithName(ELEM_TRANSMISSION_CONSTRAINT_LIST)) { readTransmissionConstraintList(spaceSystem, mc); } else if (isEndElementWithName(ELEM_META_COMMAND)) { return mc; } else { logUnknown(); } } } private void readBaseMetaCommand(SpaceSystem spaceSystem, MetaCommand mc) throws XMLStreamException { log.trace(ELEM_BASE_META_COMMAND); checkStartElementPreconditions(); String refName = readMandatoryAttribute("metaCommandRef", xmlEvent.asStartElement()); if (refName != null) { if (excludedContainers.contains(refName)) { log.debug("adding {} to the list of the excluded containers because its parent is excluded", mc.getName()); excludedContainers.add(mc.getName()); } else { // find base container in the set of already defined containers MetaCommand baseContainer = spaceSystem.getMetaCommand(refName); if (baseContainer != null) { mc.setBaseMetaCommand(baseContainer); } else { // must come from somewhere else final MetaCommand finalmc = mc; NameReference nr = new NameReference(refName, Type.META_COMMAND).addResolvedAction(nd -> { finalmc.setBaseMetaCommand((MetaCommand) nd); }); spaceSystem.addUnresolvedReference(nr); } } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_ARGUMENT_ASSIGNMENT_LIST)) { readArgumentAssignmentList(spaceSystem, mc); } else if (isEndElementWithName(ELEM_BASE_META_COMMAND)) { return; } else { logUnknown(); } } } } private void readArgumentAssignmentList(SpaceSystem spaceSystem, MetaCommand mc) throws XMLStreamException { log.trace(ELEM_ARGUMENT_ASSIGNMENT_LIST); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_ARGUMENT_ASSIGNMENT)) { ArgumentAssignment aa = readArgumentAssignment(spaceSystem); mc.addArgumentAssignment(aa); } else if (isEndElementWithName(ELEM_ARGUMENT_ASSIGNMENT_LIST)) { return; } } } private ArgumentAssignment readArgumentAssignment(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_ARGUMENT_ASSIGNMENT); checkStartElementPreconditions(); StartElement element = xmlEvent.asStartElement(); String argumentName = readMandatoryAttribute("argumentName", element); String argumentValue = readMandatoryAttribute("argumentValue", element); skipToTheEnd(ELEM_ARGUMENT_ASSIGNMENT); return new ArgumentAssignment(argumentName, argumentValue); } private void readArgumentList(SpaceSystem spaceSystem, MetaCommand mc) throws XMLStreamException { log.trace(ELEM_ARGUMENT_LIST); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_ARGUMENT)) { Argument arg = readArgument(spaceSystem); mc.addArgument(arg); } else if (isEndElementWithName(ELEM_ARGUMENT_LIST)) { return; } } } /** * * @return Parameter instance * @throws IllegalStateException * @throws XMLStreamException */ private Argument readArgument(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_ARGUMENT); checkStartElementPreconditions(); Argument arg = null; StartElement element = xmlEvent.asStartElement(); String name = readMandatoryAttribute(ATTR_NAME, element); arg = new Argument(name); String initialValue = readAttribute(ATTR_INITIAL_VALUE, element, null); String argumentTypeRef = readMandatoryAttribute("argumentTypeRef", element); final Argument arg1 = arg; NameReference nr = new NameReference(argumentTypeRef, Type.ARGUMENT_TYPE) .addResolvedAction(nd -> { ArgumentType atype1 = (ArgumentType) nd; if (initialValue != null) { arg1.setInitialValue(atype1.convertType(initialValue)); } arg1.setArgumentType(atype1); }); spaceSystem.addUnresolvedReference(nr); arg.setShortDescription(readAttribute(ATTR_SHORT_DESCRIPTION, element, null)); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isNamedItemProperty()) { readNamedItemProperty(arg); } else if (isEndElementWithName(ELEM_ARGUMENT)) { return arg; } else { logUnknown(); } } } private void readVerifierSet(SpaceSystem spaceSystem, MetaCommand mc) throws XMLStreamException { log.trace(ELEM_VERIFIER_SET); checkStartElementPreconditions(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (xmlEvent.isStartElement() && xmlEvent.asStartElement().getName().getLocalPart().endsWith("Verifier")) { CommandVerifier cmdVerifier = readVerifier(spaceSystem, mc); if (cmdVerifier != null) { mc.addVerifier(cmdVerifier); } } else if (isEndElementWithName(ELEM_VERIFIER_SET)) { return; } else { logUnknown(); } } } private CommandVerifier readVerifier(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { StartElement element = checkStartElementPreconditions(); String tag = element.getName().getLocalPart(); String stage = readAttribute(ATTR_NAME, element, null); String type = tag.substring(0, tag.length() - 8);// strip the "Verifier" suffix; if (stage == null) { stage = type; } List ancillaryData = Collections.emptyList(); CommandVerifier cmdVerifier = null; while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_CONTAINER_REF)) { cmdVerifier = new CommandVerifier(CommandVerifier.Type.CONTAINER, stage); readContainerRef(spaceSystem, cmdVerifier); } else if (isStartElementWithName(ELEM_CUSTOM_ALGORITHM)) { cmdVerifier = new CommandVerifier(CommandVerifier.Type.ALGORITHM, stage); CustomAlgorithm algo = readCustomAlgorithm(spaceSystem, metaCmd); algo.setScope(Scope.COMMAND_VERIFICATION); cmdVerifier.setAlgorithm(algo); } else if (isStartElementWithName(ELEM_COMPARISON)) { cmdVerifier = new CommandVerifier(CommandVerifier.Type.MATCH_CRITERIA, stage); MatchCriteria matchCriteria = readComparison(spaceSystem, metaCmd); cmdVerifier.setMatchCriteria(matchCriteria); } else if (isStartElementWithName(ELEM_COMPARISON_LIST)) { cmdVerifier = new CommandVerifier(CommandVerifier.Type.MATCH_CRITERIA, stage); MatchCriteria matchCriteria = readComparisonList(spaceSystem, metaCmd); cmdVerifier.setMatchCriteria(matchCriteria); } else if (isStartElementWithName(ELEM_BOOLEAN_EXPRESSION)) { cmdVerifier = new CommandVerifier(CommandVerifier.Type.MATCH_CRITERIA, stage); MatchCriteria matchCriteria = readBooleanExpression(spaceSystem, metaCmd); cmdVerifier.setMatchCriteria(matchCriteria); } else if (isStartElementWithName(ELEM_PARAMETER_VALUE_CHANGE)) { cmdVerifier = new CommandVerifier(CommandVerifier.Type.PARAMETER_VALUE_CHANGE, stage); ParameterValueChange paraValueChange = readParameterValueChange(spaceSystem); cmdVerifier.setParameterValueChange(paraValueChange); } else if (isStartElementWithName(ELEM_CHECK_WINDOW)) { if (cmdVerifier == null) { throw new XMLStreamException("CheckWindow specified before the verifier.", xmlEvent.getLocation()); } CheckWindow cw = readCheckWindow(spaceSystem); cmdVerifier.setCheckWindow(cw); } else if (isStartElementWithName(ELEM_ANCILLARY_DATA_SET)) { ancillaryData = readAncillaryDataSet(); } else if (isStartElementWithName(ELEM_RETURN_PARAM_REF)) { if (cmdVerifier == null) { throw new XMLStreamException("ReturnParmRef specified before the verifier.", xmlEvent.getLocation()); } CommandVerifier cmdVerifier1 = cmdVerifier; String paramRef = readMandatoryAttribute(ATTR_PARAMETER_REF, xmlEvent.asStartElement()); makeParameterReference(spaceSystem, paramRef, (param, path) -> { cmdVerifier1.setReturnParameter(param); }); } else if (isEndElementWithName(tag)) { if (cmdVerifier != null) { if (cmdVerifier.getCheckWindow() == null) { throw new XMLStreamException("No CheckWindow specified for command verifier", xmlEvent.getLocation()); } TerminationAction onSuccess = null; TerminationAction onFail = null; TerminationAction onTimeout = null; if ("Failed".equals(type)) { onSuccess = TerminationAction.FAIL; } else if ("Complete".equals(type)) { onSuccess = TerminationAction.SUCCESS; onFail = TerminationAction.FAIL; } else { onFail = TerminationAction.FAIL; } // Allow overriding the default behaviour through // ancillary data elements for (var item : ancillaryData) { if (item.getName().equals("yamcs.onSuccess")) { if (item.getValue() != null) { onSuccess = TerminationAction.valueOf(item.getValue()); } else { onSuccess = null; } } else if (item.getName().equals("yamcs.onFail")) { if (item.getValue() != null) { onFail = TerminationAction.valueOf(item.getValue()); } else { onFail = null; } } else if (item.getName().equals("yamcs.onTimeout")) { if (item.getValue() != null) { onTimeout = TerminationAction.valueOf(item.getValue()); } else { onTimeout = null; } } } cmdVerifier.setOnSuccess(onSuccess); cmdVerifier.setOnFail(onFail); cmdVerifier.setOnTimeout(onTimeout); } return cmdVerifier; } else { logUnknown(); } } } private void readContainerRef(SpaceSystem spaceSystem, CommandVerifier cmdVerifier) throws XMLStreamException { String refName = readMandatoryAttribute("containerRef", xmlEvent.asStartElement()); SequenceContainer container = spaceSystem.getSequenceContainer(refName); if (container != null) { cmdVerifier.setContainerRef(container); } else { // must come from somewhere else NameReference nr = new NameReference(refName, Type.SEQUENCE_CONTAINER) .addResolvedAction(nd -> { cmdVerifier.setContainerRef((SequenceContainer) nd); }); spaceSystem.addUnresolvedReference(nr); } xmlEvent = xmlEventReader.nextEvent(); if (!isEndElementWithName(ELEM_CONTAINER_REF)) { throw new IllegalStateException(ELEM_CONTAINER_REF + " end element expected"); } } private CheckWindow readCheckWindow(SpaceSystem spaceSystem) throws XMLStreamException { StartElement element = xmlEvent.asStartElement(); String v = readAttribute("timeToStartChecking", element, null); long timeToStartChecking = v == null ? -1 : parseDuration(v); long timeToStopChecking = parseDuration(readMandatoryAttribute("timeToStopChecking", element)); v = readAttribute("timeWindowIsRelativeTo", element, "timeLastVerifierPassed"); try { CheckWindow.TimeWindowIsRelativeToType timeWindowIsRelativeTo = TimeWindowIsRelativeToType.fromXtce(v); return new CheckWindow(timeToStartChecking, timeToStopChecking, timeWindowIsRelativeTo); } catch (IllegalArgumentException e) { throw new XMLStreamException("Invalid value '" + v + "' for timeWindowIsRelativeTo"); } } long parseDuration(String v) { Duration d; try { d = DatatypeFactory.newInstance().newDuration(v); } catch (DatatypeConfigurationException e) { throw new Error(e); } return d.getTimeInMillis(new Date()); } private CommandContainer readCommandContainer(SpaceSystem spaceSystem, MetaCommand mc) throws XMLStreamException { log.trace(ELEM_COMMAND_CONTAINER); checkStartElementPreconditions(); CommandContainer cmdContainer = null; String value = readMandatoryAttribute(ATTR_NAME, xmlEvent.asStartElement()); cmdContainer = new CommandContainer(value); value = readAttribute(ATTR_SHORT_DESCRIPTION, xmlEvent.asStartElement(), null); if (value != null) { cmdContainer.setShortDescription(value); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isNamedItemProperty()) { readNamedItemProperty(cmdContainer); } else if (isStartElementWithName(ELEM_ENTRY_LIST)) { readEntryList(spaceSystem, cmdContainer, mc); } else if (isStartElementWithName(ELEM_BASE_CONTAINER)) { readBaseContainer(spaceSystem, cmdContainer); } else if (isStartElementWithName(ELEM_DEFAULT_RATE_IN_STREAM)) { cmdContainer.setRateInStream(readRateInStream(spaceSystem)); } else if (isStartElementWithName(ELEM_BINARY_ENCODING)) { BinaryDataEncoding.Builder bde = readBinaryDataEncoding(spaceSystem); cmdContainer.setSizeInBits(bde.getSizeInBits()); } else if (isEndElementWithName(ELEM_COMMAND_CONTAINER)) { return cmdContainer; } else { logUnknown(); } } } private void readBaseContainer(SpaceSystem spaceSystem, CommandContainer mcContainer) throws IllegalStateException, XMLStreamException { log.trace(ELEM_BASE_CONTAINER); checkStartElementPreconditions(); String refName = readMandatoryAttribute("containerRef", xmlEvent.asStartElement()); if (excludedContainers.contains(refName)) { log.debug("adding {} to the list of the excluded containers because its parent is excluded", mcContainer.getName()); excludedContainers.add(mcContainer.getName()); } else { // find base container in the set of already defined containers CommandContainer baseContainer = spaceSystem.getCommandContainer(refName); if (baseContainer != null) { mcContainer.setBaseContainer(baseContainer); } else { // must come from somewhere else final CommandContainer finalsc = mcContainer; NameReference nr = new NameReference(refName, Type.COMMAND_CONTAINER) .addResolvedAction(nd -> { finalsc.setBaseContainer((Container) nd); }); spaceSystem.addUnresolvedReference(nr); } } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_RESTRICTION_CRITERIA)) { MatchCriteria criteria = readMatchCriteria(spaceSystem, null); mcContainer.setRestrictionCriteria(criteria); } else if (isEndElementWithName(ELEM_BASE_CONTAINER)) { return; } else { logUnknown(); } } } private ArgumentEntry readArgumentRefEntry(SpaceSystem spaceSystem, MetaCommand mc) throws XMLStreamException { log.trace(ELEM_ARGUMENT_REF_ENTRY); checkStartElementPreconditions(); String refName = readMandatoryAttribute("argumentRef", xmlEvent.asStartElement()); Argument arg = mc.getArgument(refName); ArgumentEntry argumentEntry = null; if (arg == null) { throw new XMLStreamException("Undefined argument reference '" + refName + "'", xmlEvent.getLocation()); } argumentEntry = new ArgumentEntry(arg); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_LOCATION_IN_CONTAINER_IN_BITS)) { readLocationInContainerInBits(argumentEntry); } else if (isStartElementWithName(ELEM_REPEAT_ENTRY)) { Repeat r = readRepeatEntry(spaceSystem); argumentEntry.setRepeatEntry(r); } else if (isStartElementWithName(ELEM_INCLUDE_CONDITION)) { skipXtceSection(ELEM_INCLUDE_CONDITION); } else if (isEndElementWithName(ELEM_ARGUMENT_REF_ENTRY)) { return argumentEntry; } else { logUnknown(); } } } private FixedValueEntry readFixedValueEntry(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_FIXED_VALUE_ENTRY); checkStartElementPreconditions(); StartElement startElement = xmlEvent.asStartElement(); String name = readAttribute(ATTR_NAME, startElement, null); String value = readMandatoryAttribute("binaryValue", startElement); byte[] binaryValue = HexUtils.unhex(value); int sizeInBits = readIntAttribute(ATTR_SIZE_IN_BITS, startElement, binaryValue.length * 8); FixedValueEntry fixedValueEntry = new FixedValueEntry(name, binaryValue, sizeInBits); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_LOCATION_IN_CONTAINER_IN_BITS)) { readLocationInContainerInBits(fixedValueEntry); } else if (isStartElementWithName(ELEM_REPEAT_ENTRY)) { Repeat r = readRepeatEntry(spaceSystem); fixedValueEntry.setRepeatEntry(r); } else if (isStartElementWithName(ELEM_INCLUDE_CONDITION)) { skipXtceSection(ELEM_INCLUDE_CONDITION); } else if (isEndElementWithName(ELEM_FIXED_VALUE_ENTRY)) { return fixedValueEntry; } else { logUnknown(); } } } /** * builds a custom algorithm *

* If metaCmd is not null, the algorithm is used as part of a command verifier and can have command arguments and * command history parameters as inputs */ private CustomAlgorithm readCustomAlgorithm(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { checkStartElementPreconditions(); StartElement startElement = xmlEvent.asStartElement(); String tag = startElement.getName().getLocalPart(); String name = readMandatoryAttribute(ATTR_NAME, startElement); CustomAlgorithm algo = new CustomAlgorithm(name); algo.setShortDescription(readAttribute(ATTR_SHORT_DESCRIPTION, startElement, null)); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isNamedItemProperty()) { readNamedItemProperty(algo); } else if (isStartElementWithName(ELEM_ALGORITHM_TEXT)) { readCustomAlgorithmText(algo); } else if (isStartElementWithName(ELEM_TRIGGER_SET)) { algo.setTriggerSet(readTriggerSet(spaceSystem)); } else if (isStartElementWithName(ELEM_OUTPUT_SET)) { algo.setOutputSet(readOutputSet(spaceSystem)); } else if (isStartElementWithName(ELEM_INPUT_SET)) { addInputSet(spaceSystem, algo, metaCmd); } else if (isEndElementWithName(tag)) { return algo; } else { logUnknown(); } } } private void readCustomAlgorithmText(CustomAlgorithm algo) throws XMLStreamException { checkStartElementPreconditions(); StartElement startElement = xmlEvent.asStartElement(); String tag = startElement.getName().getLocalPart(); String language = readMandatoryAttribute("language", startElement); if (!"JavaScript".equals(language) && !"python".equals(language) && !"java".equalsIgnoreCase(language) && !"java-expression".equalsIgnoreCase(language)) { throw new XtceLoadException(fileName, xmlEvent.getLocation(), "Invalid algorithm language '" + language + "'. Supported are 'JavaScript', 'python', 'java' and 'java-expression'"); } algo.setLanguage(language); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (xmlEvent.isCharacters()) { algo.setAlgorithmText(xmlEvent.asCharacters().getData()); } else if (isEndElementWithName(tag)) { return; } } } private void addInputSet(SpaceSystem spaceSystem, CustomAlgorithm algo, MetaCommand metaCmd) throws XMLStreamException { checkStartElementPreconditions(); StartElement startElement = xmlEvent.asStartElement(); String tag = startElement.getName().getLocalPart(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_INPUT_PARAMETER_INSTANCE_REF)) { addInputParameterInstanceRef(spaceSystem, algo, metaCmd); } else if (isStartElementWithName(ELEM_INPUT_ARGUMENT_INSTANCE_REF)) { if (metaCmd == null) { throw new XtceLoadException(fileName, xmlEvent.getLocation(), "Argument references can only be used in algorithms related to commands"); } addInputArgumentInstanceRef(spaceSystem, algo, metaCmd); } else if (isStartElementWithName(ELEM_CONSTANT)) { throw new XMLStreamException("Constant input parameters not supported", xmlEvent.getLocation()); } else if (isEndElementWithName(tag)) { return; } else { logUnknown(); } } } private void addInputParameterInstanceRef(SpaceSystem spaceSystem, CustomAlgorithm algo, MetaCommand metaCmd) throws XMLStreamException { log.trace(ELEM_INPUT_PARAMETER_INSTANCE_REF); String paramRef = readMandatoryAttribute(ATTR_PARAMETER_REF, xmlEvent.asStartElement()); String inputName = readAttribute("inputName", xmlEvent.asStartElement(), null); InputParameter inputParameter; if (paramRef.startsWith(YAMCS_CMDARG_SPACESYSTEM_NAME)) { ArgumentInstanceRef argRef = readArgumentInstanceRef(spaceSystem, metaCmd); inputParameter = new InputParameter(argRef, inputName); } else { ParameterInstanceRef instanceRef = readParameterInstanceRef(spaceSystem, null); instanceRef.setRelativeTo(InstanceRelativeTo.PACKET_START_ACROSS_PACKETS); inputParameter = new InputParameter(instanceRef, inputName); } List adlist = algo.getAncillaryData(); if (adlist != null) { boolean mandatory = algo.getAncillaryData().stream() .anyMatch(ad -> AncillaryData.KEY_ALGO_MANDATORY_INPUT.equalsIgnoreCase(ad.getName()) && Objects.equals(ad.getValue(), inputName)); inputParameter.setMandatory(mandatory); } algo.addInput(inputParameter); } private void addInputArgumentInstanceRef(SpaceSystem spaceSystem, CustomAlgorithm algo, MetaCommand metaCmd) throws XMLStreamException { log.trace(ELEM_INPUT_ARGUMENT_INSTANCE_REF); String inputName = readAttribute("inputName", xmlEvent.asStartElement(), null); ArgumentInstanceRef argRef = readArgumentInstanceRef(spaceSystem, metaCmd); InputParameter inputParameter = new InputParameter(argRef, inputName); algo.addInput(inputParameter); } private List readOutputSet(SpaceSystem spaceSystem) throws XMLStreamException { checkStartElementPreconditions(); StartElement startElement = xmlEvent.asStartElement(); String tag = startElement.getName().getLocalPart(); List result = new ArrayList<>(); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_OUTPUT_PARAMETER_REF)) { result.add(readOutputParameterRef(spaceSystem)); } else if (isEndElementWithName(tag)) { return result; } } } private Significance readSignificance(SpaceSystem spaceSystem) throws IllegalStateException, XMLStreamException { log.trace(ELEM_DEFAULT_SIGNIFICANCE); checkStartElementPreconditions(); String reason = readAttribute("reasonForWarning", xmlEvent.asStartElement(), null); String conseq = readMandatoryAttribute("consequenceLevel", xmlEvent.asStartElement()); Levels clevel; try { clevel = Levels.fromString(conseq.toLowerCase()); } catch (IllegalArgumentException e) { String allowedValues = Arrays.stream(Levels.values()).map(l -> l.xtceAlias()) .collect(Collectors.joining(", ")); throw new XMLStreamException( "Invalid consequence level '" + conseq + "'; allowed values: [" + allowedValues + "]"); } while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isEndElementWithName(ELEM_DEFAULT_SIGNIFICANCE)) { return new Significance(clevel, reason); } else { logUnknown(); } } } private void readTransmissionConstraintList(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { log.trace(ELEM_TRANSMISSION_CONSTRAINT_LIST); while (true) { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(ELEM_TRANSMISSION_CONSTRAINT)) { TransmissionConstraint trc = readTransmissionConstraint(spaceSystem, metaCmd); metaCmd.addTransmissionConstrain(trc); } else if (isEndElementWithName(ELEM_TRANSMISSION_CONSTRAINT_LIST)) { return; } } } TransmissionConstraint readTransmissionConstraint(SpaceSystem spaceSystem, MetaCommand metaCmd) throws XMLStreamException { log.trace(ELEM_TRANSMISSION_CONSTRAINT); StartElement element = xmlEvent.asStartElement(); String timeouts = readAttribute("timeOut", element, null); long timeout = timeouts == null ? 0 : parseDuration(timeouts); MatchCriteria matchCriteria = readMatchCriteria(spaceSystem, metaCmd); return new TransmissionConstraint(matchCriteria, timeout); } private OutputParameter readOutputParameterRef(SpaceSystem spaceSystem) throws XMLStreamException { log.trace(ELEM_OUTPUT_PARAMETER_REF); String paramRef = readMandatoryAttribute(ATTR_PARAMETER_REF, xmlEvent.asStartElement()); String outputName = readAttribute("outputName", xmlEvent.asStartElement(), null); OutputParameter outp = new OutputParameter(); outp.setOutputName(outputName); NameReference nr = new NameReference(paramRef, Type.PARAMETER).addResolvedAction(nd -> { outp.setParameter((Parameter) nd); }); spaceSystem.addUnresolvedReference(nr); return outp; } /** * Increase the skip statistics for the section. * * @param xtceSectionName * Name of the skipped section. */ private void addToSkipStatistics(String xtceSectionName) { Integer count = xtceSkipStatistics.get(xtceSectionName); if (count == null) { xtceSkipStatistics.put(xtceSectionName, Integer.valueOf(1)); } else { xtceSkipStatistics.put(xtceSectionName, count + 1); } } /** * Write statistics. */ public void writeStatistics() { log.info("------------------"); log.info("Statistics of skipped elements: "); for (Map.Entry entry : xtceSkipStatistics.entrySet()) { log.info(">> {} : {} ", entry.getKey(), entry.getValue()); } log.info("------------------"); } /** * Skips whole section in the document. * * @param sectionName * name of the section to skip * @throws XMLStreamException * @throws IllegalStateException * Exception on algorithm error */ private void skipXtceSection(String sectionName) throws XMLStreamException { log.trace(sectionName); checkStartElementPreconditions(); addToSkipStatistics(sectionName); while (true) { // just skip whole section, read events until the // end element of the section occurs try { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(sectionName)) { // skip wrapped sections with the same name skipXtceSection(sectionName); } else if (isEndElementWithName(sectionName)) { log.info("Section <{}> skipped", sectionName); return; } } catch (NoSuchElementException e) { throw new XMLStreamException("End of section unreachable: " + sectionName, xmlEvent.getLocation()); } } } private void skipToTheEnd(String sectionName) throws XMLStreamException, IllegalStateException { log.trace(sectionName); checkStartElementPreconditions(); while (true) { // just skip whole section, read events until the // end element of the section occurs try { xmlEvent = xmlEventReader.nextEvent(); if (isStartElementWithName(sectionName)) { skipXtceSection(sectionName); } else if (isEndElementWithName(sectionName)) { return; } } catch (NoSuchElementException e) { throw new XMLStreamException("End of section unreachable: " + sectionName, xmlEvent.getLocation()); } } } private boolean isNamedItemProperty() { if (xmlEvent.getEventType() != XMLStreamConstants.START_ELEMENT) { return false; } String name = xmlEvent.asStartElement().getName().getLocalPart(); return ELEM_ALIAS_SET.equals(name) || ELEM_LONG_DESCRIPTION.equals(name) || ELEM_ANCILLARY_DATA_SET.equals(name); } void readNamedItemProperty(NameDescription nd) throws XMLStreamException { if (isStartElementWithName(ELEM_ALIAS_SET)) { nd.setAliasSet(readAliasSet()); } else if (isStartElementWithName(ELEM_ANCILLARY_DATA_SET)) { nd.setAncillaryData(readAncillaryDataSet()); } else if (isStartElementWithName(ELEM_LONG_DESCRIPTION)) { nd.setLongDescription(readStringBetweenTags(ELEM_LONG_DESCRIPTION)); } } boolean readNamedItemProperty(NameDescription.Builder nd) throws XMLStreamException { if (isStartElementWithName(ELEM_ALIAS_SET)) { nd.setAliasSet(readAliasSet()); } else if (isStartElementWithName(ELEM_ANCILLARY_DATA_SET)) { nd.setAncillaryData(readAncillaryDataSet()); } else if (isStartElementWithName(ELEM_LONG_DESCRIPTION)) { nd.setLongDescription(readStringBetweenTags(ELEM_LONG_DESCRIPTION)); } else { return false; } return true; } public void setExcludedContainers(Set excludedContainers) { this.excludedContainers = excludedContainers; } private void logUnknown() { if (xmlEvent.isStartElement()) { StartElement element = xmlEvent.asStartElement(); log.warn("Skipping unknown tag {} at {}:{}", element.getName().getLocalPart(), element.getLocation().getLineNumber(), element.getLocation().getColumnNumber()); } } public static ParameterReference getParameterReference(SpaceSystem spaceSystem, String paramName) { ParameterReference paraRef = new ParameterReference(paramName); spaceSystem.addUnresolvedReference(paraRef); return paraRef; } public static void makeParameterReference(SpaceSystem spaceSystem, String paramRef, ParameterResolvedAction action) { getParameterReference(spaceSystem, paramRef).addResolvedAction(action); } void throwException(Location location, String message) { throw new XtceLoadException(fileName, location, message); } }





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