ca.uhn.fhir.parser.XmlParser Maven / Gradle / Ivy
/*-
* #%L
* HAPI FHIR - Core Library
* %%
* Copyright (C) 2014 - 2024 Smile CDR, Inc.
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
package ca.uhn.fhir.parser;
import ca.uhn.fhir.context.BaseRuntimeChildDefinition;
import ca.uhn.fhir.context.BaseRuntimeDeclaredChildDefinition;
import ca.uhn.fhir.context.BaseRuntimeElementDefinition;
import ca.uhn.fhir.context.ConfigurationException;
import ca.uhn.fhir.context.FhirContext;
import ca.uhn.fhir.context.RuntimeChildContainedResources;
import ca.uhn.fhir.context.RuntimeChildExtension;
import ca.uhn.fhir.context.RuntimeChildNarrativeDefinition;
import ca.uhn.fhir.context.RuntimeChildUndeclaredExtensionDefinition;
import ca.uhn.fhir.context.RuntimeResourceDefinition;
import ca.uhn.fhir.i18n.Msg;
import ca.uhn.fhir.model.api.IResource;
import ca.uhn.fhir.model.api.ISupportsUndeclaredExtensions;
import ca.uhn.fhir.model.api.ResourceMetadataKeyEnum;
import ca.uhn.fhir.model.api.Tag;
import ca.uhn.fhir.model.api.TagList;
import ca.uhn.fhir.model.base.composite.BaseCodingDt;
import ca.uhn.fhir.model.primitive.IdDt;
import ca.uhn.fhir.model.primitive.InstantDt;
import ca.uhn.fhir.model.primitive.XhtmlDt;
import ca.uhn.fhir.narrative.INarrativeGenerator;
import ca.uhn.fhir.rest.api.EncodingEnum;
import ca.uhn.fhir.util.ElementUtil;
import ca.uhn.fhir.util.NonPrettyPrintWriterWrapper;
import ca.uhn.fhir.util.PrettyPrintWriterWrapper;
import ca.uhn.fhir.util.XmlUtil;
import org.apache.commons.lang3.StringUtils;
import org.hl7.fhir.instance.model.api.IAnyResource;
import org.hl7.fhir.instance.model.api.IBase;
import org.hl7.fhir.instance.model.api.IBaseBinary;
import org.hl7.fhir.instance.model.api.IBaseDatatype;
import org.hl7.fhir.instance.model.api.IBaseExtension;
import org.hl7.fhir.instance.model.api.IBaseHasExtensions;
import org.hl7.fhir.instance.model.api.IBaseHasModifierExtensions;
import org.hl7.fhir.instance.model.api.IBaseResource;
import org.hl7.fhir.instance.model.api.IBaseXhtml;
import org.hl7.fhir.instance.model.api.IIdType;
import org.hl7.fhir.instance.model.api.IPrimitiveType;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Optional;
import javax.xml.namespace.QName;
import javax.xml.stream.FactoryConfigurationError;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.stream.events.Attribute;
import javax.xml.stream.events.Characters;
import javax.xml.stream.events.Comment;
import javax.xml.stream.events.EntityReference;
import javax.xml.stream.events.Namespace;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;
import static org.apache.commons.lang3.StringUtils.isBlank;
import static org.apache.commons.lang3.StringUtils.isNotBlank;
/**
* This class is the FHIR XML parser/encoder. Users should not interact with this class directly, but should use
* {@link FhirContext#newXmlParser()} to get an instance.
*/
public class XmlParser extends BaseParser {
static final String FHIR_NS = "http://hl7.org/fhir";
private static final org.slf4j.Logger ourLog = org.slf4j.LoggerFactory.getLogger(XmlParser.class);
private boolean myPrettyPrint;
/**
* Do not use this constructor, the recommended way to obtain a new instance of the XML parser is to invoke
* {@link FhirContext#newXmlParser()}.
*
* @param theParserErrorHandler
*/
public XmlParser(FhirContext theContext, IParserErrorHandler theParserErrorHandler) {
super(theContext, theParserErrorHandler);
}
private XMLEventReader createStreamReader(Reader theReader) {
try {
return XmlUtil.createXmlReader(theReader);
} catch (FactoryConfigurationError e1) {
throw new ConfigurationException(Msg.code(1848) + "Failed to initialize STaX event factory", e1);
} catch (XMLStreamException e1) {
throw new DataFormatException(Msg.code(1849) + e1);
}
}
private XMLStreamWriter createXmlWriter(Writer theWriter) throws XMLStreamException {
XMLStreamWriter eventWriter;
eventWriter = XmlUtil.createXmlStreamWriter(theWriter);
eventWriter = decorateStreamWriter(eventWriter);
return eventWriter;
}
private XMLStreamWriter decorateStreamWriter(XMLStreamWriter eventWriter) {
if (myPrettyPrint) {
PrettyPrintWriterWrapper retVal = new PrettyPrintWriterWrapper(eventWriter);
return retVal;
}
NonPrettyPrintWriterWrapper retVal = new NonPrettyPrintWriterWrapper(eventWriter);
return retVal;
}
@Override
public void doEncodeResourceToWriter(IBaseResource theResource, Writer theWriter, EncodeContext theEncodeContext)
throws DataFormatException {
XMLStreamWriter eventWriter;
try {
eventWriter = createXmlWriter(theWriter);
encodeResourceToXmlStreamWriter(theResource, eventWriter, false, theEncodeContext);
eventWriter.flush();
} catch (XMLStreamException e) {
throw new ConfigurationException(Msg.code(1850) + "Failed to initialize STaX event factory", e);
}
}
@Override
protected void doEncodeToWriter(IBase theElement, Writer theWriter, EncodeContext theEncodeContext)
throws IOException, DataFormatException {
XMLStreamWriter eventWriter;
try {
eventWriter = createXmlWriter(theWriter);
eventWriter.writeStartElement("element");
encodeCompositeElementToStreamWriter(
null,
theElement,
eventWriter,
false,
new CompositeChildElement(null, theEncodeContext),
theEncodeContext);
eventWriter.writeEndElement();
eventWriter.flush();
} catch (XMLStreamException e) {
throw new ConfigurationException(Msg.code(2365) + "Failed to initialize STaX event factory", e);
}
}
@Override
public T doParseResource(Class theResourceType, Reader theReader) {
XMLEventReader streamReader = createStreamReader(theReader);
return parseResource(theResourceType, streamReader);
}
private T doXmlLoop(XMLEventReader streamReader, ParserState parserState) {
ourLog.trace("Entering XML parsing loop with state: {}", parserState);
try {
List heldComments = new ArrayList<>(1);
while (streamReader.hasNext()) {
XMLEvent nextEvent = streamReader.nextEvent();
try {
switch (nextEvent.getEventType()) {
case XMLStreamConstants.START_ELEMENT: {
StartElement elem = nextEvent.asStartElement();
String namespaceURI = elem.getName().getNamespaceURI();
String localPart = elem.getName().getLocalPart();
if ("extension".equals(localPart)) {
Attribute urlAttr = elem.getAttributeByName(new QName("url"));
String url;
if (urlAttr == null || isBlank(urlAttr.getValue())) {
getErrorHandler()
.missingRequiredElement(
new ParseLocation().setParentElementName("extension"), "url");
url = null;
} else {
url = urlAttr.getValue();
}
parserState.enteringNewElementExtension(elem, url, false, getServerBaseUrl());
} else if ("modifierExtension".equals(localPart)) {
Attribute urlAttr = elem.getAttributeByName(new QName("url"));
String url;
if (urlAttr == null || isBlank(urlAttr.getValue())) {
getErrorHandler()
.missingRequiredElement(
new ParseLocation().setParentElementName("modifierExtension"),
"url");
url = null;
} else {
url = urlAttr.getValue();
}
parserState.enteringNewElementExtension(elem, url, true, getServerBaseUrl());
} else {
parserState.enteringNewElement(namespaceURI, localPart);
}
if (!heldComments.isEmpty()) {
for (String next : heldComments) {
parserState.commentPre(next);
}
heldComments.clear();
}
for (Iterator attributes = elem.getAttributes(); attributes.hasNext(); ) {
Attribute next = attributes.next();
parserState.attributeValue(next.getName().getLocalPart(), next.getValue());
}
break;
}
case XMLStreamConstants.END_DOCUMENT:
case XMLStreamConstants.END_ELEMENT: {
if (!heldComments.isEmpty()) {
for (String next : heldComments) {
parserState.commentPost(next);
}
heldComments.clear();
}
parserState.endingElement();
break;
}
case XMLStreamConstants.CHARACTERS: {
parserState.string(nextEvent.asCharacters().getData());
break;
}
case XMLStreamConstants.COMMENT: {
Comment comment = (Comment) nextEvent;
String commentText = comment.getText();
heldComments.add(commentText);
break;
}
}
parserState.xmlEvent(nextEvent);
} catch (DataFormatException e) {
throw new DataFormatException(
Msg.code(1851) + "DataFormatException at ["
+ nextEvent.getLocation().toString() + "]: " + e.getMessage(),
e);
}
}
return parserState.getObject();
} catch (XMLStreamException e) {
throw new DataFormatException(Msg.code(1852) + e);
}
}
private void encodeChildElementToStreamWriter(
IBaseResource theResource,
XMLStreamWriter theEventWriter,
BaseRuntimeChildDefinition theChildDefinition,
IBase theElement,
String theChildName,
BaseRuntimeElementDefinition childDef,
String theExtensionUrl,
boolean theIncludedResource,
CompositeChildElement theParent,
EncodeContext theEncodeContext)
throws XMLStreamException, DataFormatException {
/*
* Often the two values below will be the same thing. There are cases though
* where they will not be. An example would be Observation.value, which is
* a choice type. If the value contains a Quantity, then:
* childGenericName = "value"
* theChildName = "valueQuantity"
*/
String childGenericName = theChildDefinition.getElementName();
theEncodeContext.pushPath(childGenericName, false);
try {
if (theElement == null || theElement.isEmpty()) {
if (isChildContained(childDef, theIncludedResource)) {
// We still want to go in..
} else {
return;
}
}
writeCommentsPre(theEventWriter, theElement);
switch (childDef.getChildType()) {
case ID_DATATYPE: {
IIdType value = IIdType.class.cast(theElement);
String encodedValue = "id".equals(theChildName) ? value.getIdPart() : value.getValue();
if (StringUtils.isNotBlank(encodedValue) || !super.hasNoExtensions(value)) {
theEventWriter.writeStartElement(theChildName);
if (StringUtils.isNotBlank(encodedValue)) {
theEventWriter.writeAttribute("value", encodedValue);
}
encodeExtensionsIfPresent(
theResource, theEventWriter, theElement, theIncludedResource, theEncodeContext);
theEventWriter.writeEndElement();
}
break;
}
case PRIMITIVE_DATATYPE: {
IPrimitiveType pd = IPrimitiveType.class.cast(theElement);
String value = pd.getValueAsString();
if (value != null || !super.hasNoExtensions(pd)) {
theEventWriter.writeStartElement(theChildName);
String elementId = getCompositeElementId(theElement);
if (isNotBlank(elementId)) {
theEventWriter.writeAttribute("id", elementId);
}
if (value != null) {
theEventWriter.writeAttribute("value", value);
}
encodeExtensionsIfPresent(
theResource, theEventWriter, theElement, theIncludedResource, theEncodeContext);
theEventWriter.writeEndElement();
}
break;
}
case RESOURCE_BLOCK:
case COMPOSITE_DATATYPE: {
theEventWriter.writeStartElement(theChildName);
String elementId = getCompositeElementId(theElement);
if (isNotBlank(elementId)) {
theEventWriter.writeAttribute("id", elementId);
}
if (isNotBlank(theExtensionUrl)) {
theEventWriter.writeAttribute("url", theExtensionUrl);
}
encodeCompositeElementToStreamWriter(
theResource, theElement, theEventWriter, theIncludedResource, theParent, theEncodeContext);
theEventWriter.writeEndElement();
break;
}
case CONTAINED_RESOURCE_LIST:
case CONTAINED_RESOURCES: {
/*
* Disable per #103 for (IResource next : value.getContainedResources()) { if (getContainedResources().getResourceId(next) != null) { continue; }
* theEventWriter.writeStartElement("contained"); encodeResourceToXmlStreamWriter(next, theEventWriter, true, fixContainedResourceId(next.getId().getValue()));
* theEventWriter.writeEndElement(); }
*/
for (IBaseResource next : getContainedResources().getContainedResources()) {
IIdType resourceId = getContainedResources().getResourceId(next);
theEventWriter.writeStartElement("contained");
String value = resourceId.getValue();
encodeResourceToXmlStreamWriter(
next, theEventWriter, true, fixContainedResourceId(value), theEncodeContext);
theEventWriter.writeEndElement();
}
break;
}
case RESOURCE: {
IBaseResource resource = (IBaseResource) theElement;
String resourceName = getContext().getResourceType(resource);
if (!super.shouldEncodeResource(resourceName)) {
break;
}
theEventWriter.writeStartElement(theChildName);
theEncodeContext.pushPath(resourceName, true);
encodeResourceToXmlStreamWriter(resource, theEventWriter, theIncludedResource, theEncodeContext);
theEncodeContext.popPath();
theEventWriter.writeEndElement();
break;
}
case PRIMITIVE_XHTML: {
XhtmlDt dt = XhtmlDt.class.cast(theElement);
if (dt.hasContent()) {
encodeXhtml(dt, theEventWriter);
}
break;
}
case PRIMITIVE_XHTML_HL7ORG: {
IBaseXhtml dt = IBaseXhtml.class.cast(theElement);
if (!dt.isEmpty()) {
// TODO: this is probably not as efficient as it could be
XhtmlDt hdt = new XhtmlDt();
hdt.setValueAsString(dt.getValueAsString());
encodeXhtml(hdt, theEventWriter);
}
break;
}
case EXTENSION_DECLARED:
case UNDECL_EXT: {
throw new IllegalStateException(Msg.code(1853) + "state should not happen: " + childDef.getName());
}
}
writeCommentsPost(theEventWriter, theElement);
} finally {
theEncodeContext.popPath();
}
}
private void encodeCompositeElementToStreamWriter(
IBaseResource theResource,
IBase theElement,
XMLStreamWriter theEventWriter,
boolean theContainedResource,
CompositeChildElement theParent,
EncodeContext theEncodeContext)
throws XMLStreamException, DataFormatException {
for (CompositeChildElement nextChildElem :
super.compositeChildIterator(theElement, theContainedResource, theParent, theEncodeContext)) {
BaseRuntimeChildDefinition nextChild = nextChildElem.getDef();
if (nextChild.getElementName().equals("url") && theElement instanceof IBaseExtension) {
/*
* XML encoding is a one-off for extensions. The URL element goes in an attribute
* instead of being encoded as a normal element, only for XML encoding
*/
continue;
}
if (nextChild instanceof RuntimeChildNarrativeDefinition) {
Optional narr = nextChild.getAccessor().getFirstValueOrNull(theElement);
INarrativeGenerator gen = getContext().getNarrativeGenerator();
if (gen != null && narr.isPresent() == false) {
gen.populateResourceNarrative(getContext(), theResource);
}
narr = nextChild.getAccessor().getFirstValueOrNull(theElement);
if (narr.isPresent()) {
RuntimeChildNarrativeDefinition child = (RuntimeChildNarrativeDefinition) nextChild;
String childName = nextChild.getChildNameByDatatype(child.getDatatype());
BaseRuntimeElementDefinition type = child.getChildByName(childName);
encodeChildElementToStreamWriter(
theResource,
theEventWriter,
nextChild,
narr.get(),
childName,
type,
null,
theContainedResource,
nextChildElem,
theEncodeContext);
continue;
}
}
if (nextChild instanceof RuntimeChildContainedResources) {
encodeChildElementToStreamWriter(
theResource,
theEventWriter,
nextChild,
null,
nextChild.getChildNameByDatatype(null),
nextChild.getChildElementDefinitionByDatatype(null),
null,
theContainedResource,
nextChildElem,
theEncodeContext);
} else {
List values = nextChild.getAccessor().getValues(theElement);
values = preProcessValues(nextChild, theResource, values, nextChildElem, theEncodeContext);
if (values == null || values.isEmpty()) {
continue;
}
for (IBase nextValue : values) {
if ((nextValue == null || nextValue.isEmpty())) {
continue;
}
BaseParser.ChildNameAndDef childNameAndDef = super.getChildNameAndDef(nextChild, nextValue);
if (childNameAndDef == null) {
continue;
}
String childName = childNameAndDef.getChildName();
BaseRuntimeElementDefinition childDef = childNameAndDef.getChildDef();
String extensionUrl = getExtensionUrl(nextChild.getExtensionUrl());
boolean isExtension = childName.equals("extension") || childName.equals("modifierExtension");
if (isExtension && nextValue instanceof IBaseExtension) {
IBaseExtension ext = (IBaseExtension) nextValue;
if (isBlank(ext.getUrl())) {
ParseLocation loc = new ParseLocation(theEncodeContext.toString() + "." + childName);
getErrorHandler().missingRequiredElement(loc, "url");
}
if (ext.getValue() != null && ext.getExtension().size() > 0) {
ParseLocation loc = new ParseLocation(theEncodeContext.toString() + "." + childName);
getErrorHandler().extensionContainsValueAndNestedExtensions(loc);
}
}
if (extensionUrl != null && isExtension == false) {
encodeExtension(
theResource,
theEventWriter,
theContainedResource,
nextChildElem,
nextChild,
nextValue,
childName,
extensionUrl,
childDef,
theEncodeContext);
} else if (nextChild instanceof RuntimeChildExtension) {
IBaseExtension extension = (IBaseExtension) nextValue;
if ((extension.getValue() == null
|| extension.getValue().isEmpty())) {
if (extension.getExtension().isEmpty()) {
continue;
}
}
encodeChildElementToStreamWriter(
theResource,
theEventWriter,
nextChild,
nextValue,
childName,
childDef,
getExtensionUrl(extension.getUrl()),
theContainedResource,
nextChildElem,
theEncodeContext);
} else {
encodeChildElementToStreamWriter(
theResource,
theEventWriter,
nextChild,
nextValue,
childName,
childDef,
extensionUrl,
theContainedResource,
nextChildElem,
theEncodeContext);
}
}
}
}
}
private void encodeExtension(
IBaseResource theResource,
XMLStreamWriter theEventWriter,
boolean theContainedResource,
CompositeChildElement nextChildElem,
BaseRuntimeChildDefinition nextChild,
IBase nextValue,
String childName,
String extensionUrl,
BaseRuntimeElementDefinition childDef,
EncodeContext theEncodeContext)
throws XMLStreamException {
BaseRuntimeDeclaredChildDefinition extDef = (BaseRuntimeDeclaredChildDefinition) nextChild;
if (extDef.isModifier()) {
theEventWriter.writeStartElement("modifierExtension");
} else {
theEventWriter.writeStartElement("extension");
}
String elementId = getCompositeElementId(nextValue);
if (isNotBlank(elementId)) {
theEventWriter.writeAttribute("id", elementId);
}
if (isBlank(extensionUrl)) {
ParseLocation loc = new ParseLocation(theEncodeContext.toString());
getErrorHandler().missingRequiredElement(loc, "url");
} else {
theEventWriter.writeAttribute("url", extensionUrl);
}
encodeChildElementToStreamWriter(
theResource,
theEventWriter,
nextChild,
nextValue,
childName,
childDef,
null,
theContainedResource,
nextChildElem,
theEncodeContext);
theEventWriter.writeEndElement();
}
private void encodeExtensionsIfPresent(
IBaseResource theResource,
XMLStreamWriter theWriter,
IBase theElement,
boolean theIncludedResource,
EncodeContext theEncodeContext)
throws XMLStreamException, DataFormatException {
if (theElement instanceof ISupportsUndeclaredExtensions) {
ISupportsUndeclaredExtensions res = (ISupportsUndeclaredExtensions) theElement;
encodeUndeclaredExtensions(
theResource,
theWriter,
toBaseExtensionList(res.getUndeclaredExtensions()),
"extension",
theIncludedResource,
theEncodeContext);
encodeUndeclaredExtensions(
theResource,
theWriter,
toBaseExtensionList(res.getUndeclaredModifierExtensions()),
"modifierExtension",
theIncludedResource,
theEncodeContext);
}
if (theElement instanceof IBaseHasExtensions) {
IBaseHasExtensions res = (IBaseHasExtensions) theElement;
encodeUndeclaredExtensions(
theResource, theWriter, res.getExtension(), "extension", theIncludedResource, theEncodeContext);
}
if (theElement instanceof IBaseHasModifierExtensions) {
IBaseHasModifierExtensions res = (IBaseHasModifierExtensions) theElement;
encodeUndeclaredExtensions(
theResource,
theWriter,
res.getModifierExtension(),
"modifierExtension",
theIncludedResource,
theEncodeContext);
}
}
private void encodeResourceToXmlStreamWriter(
IBaseResource theResource,
XMLStreamWriter theEventWriter,
boolean theIncludedResource,
EncodeContext theEncodeContext)
throws XMLStreamException, DataFormatException {
IIdType resourceId = null;
if (StringUtils.isNotBlank(theResource.getIdElement().getIdPart())) {
resourceId = theResource.getIdElement();
if (theResource.getIdElement().getValue().startsWith("urn:")) {
resourceId = null;
}
}
if (!theIncludedResource) {
if (super.shouldEncodeResourceId(theResource, theEncodeContext) == false) {
resourceId = null;
} else if (theEncodeContext.getResourcePath().size() == 1 && getEncodeForceResourceId() != null) {
resourceId = getEncodeForceResourceId();
}
}
encodeResourceToXmlStreamWriter(theResource, theEventWriter, theIncludedResource, resourceId, theEncodeContext);
}
private void encodeResourceToXmlStreamWriter(
IBaseResource theResource,
XMLStreamWriter theEventWriter,
boolean theContainedResource,
IIdType theResourceId,
EncodeContext theEncodeContext)
throws XMLStreamException {
RuntimeResourceDefinition resDef = getContext().getResourceDefinition(theResource);
if (resDef == null) {
throw new ConfigurationException(Msg.code(1854) + "Unknown resource type: " + theResource.getClass());
}
if (!theContainedResource) {
containResourcesInReferences(theResource);
}
theEventWriter.writeStartElement(resDef.getName());
theEventWriter.writeDefaultNamespace(FHIR_NS);
if (theResource instanceof IAnyResource) {
// HL7.org Structures
if (theResourceId != null) {
writeCommentsPre(theEventWriter, theResourceId);
theEventWriter.writeStartElement("id");
theEventWriter.writeAttribute("value", theResourceId.getIdPart());
encodeExtensionsIfPresent(theResource, theEventWriter, theResourceId, false, theEncodeContext);
theEventWriter.writeEndElement();
writeCommentsPost(theEventWriter, theResourceId);
}
encodeCompositeElementToStreamWriter(
theResource,
theResource,
theEventWriter,
theContainedResource,
new CompositeChildElement(resDef, theEncodeContext),
theEncodeContext);
} else {
// DSTU2+
IResource resource = (IResource) theResource;
if (theResourceId != null) {
/* writeCommentsPre(theEventWriter, theResourceId);
writeOptionalTagWithValue(theEventWriter, "id", theResourceId.getIdPart());
writeCommentsPost(theEventWriter, theResourceId);*/
theEventWriter.writeStartElement("id");
theEventWriter.writeAttribute("value", theResourceId.getIdPart());
encodeExtensionsIfPresent(theResource, theEventWriter, theResourceId, false, theEncodeContext);
theEventWriter.writeEndElement();
writeCommentsPost(theEventWriter, theResourceId);
}
InstantDt updated = (InstantDt) resource.getResourceMetadata().get(ResourceMetadataKeyEnum.UPDATED);
IdDt resourceId = resource.getId();
String versionIdPart = resourceId.getVersionIdPart();
if (isBlank(versionIdPart)) {
versionIdPart = ResourceMetadataKeyEnum.VERSION.get(resource);
}
List securityLabels =
extractMetadataListNotNull(resource, ResourceMetadataKeyEnum.SECURITY_LABELS);
List profiles = extractMetadataListNotNull(resource, ResourceMetadataKeyEnum.PROFILES);
profiles = super.getProfileTagsForEncoding(resource, profiles);
TagList tags = getMetaTagsForEncoding((resource), theEncodeContext);
if (super.shouldEncodeResourceMeta(resource)
&& ElementUtil.isEmpty(versionIdPart, updated, securityLabels, tags, profiles) == false) {
theEventWriter.writeStartElement("meta");
if (shouldEncodePath(resource, "meta.versionId")) {
writeOptionalTagWithValue(theEventWriter, "versionId", versionIdPart);
}
if (updated != null) {
if (shouldEncodePath(resource, "meta.lastUpdated")) {
writeOptionalTagWithValue(theEventWriter, "lastUpdated", updated.getValueAsString());
}
}
for (IIdType profile : profiles) {
theEventWriter.writeStartElement("profile");
theEventWriter.writeAttribute("value", profile.getValue());
theEventWriter.writeEndElement();
}
for (BaseCodingDt securityLabel : securityLabels) {
theEventWriter.writeStartElement("security");
encodeCompositeElementToStreamWriter(
resource, securityLabel, theEventWriter, theContainedResource, null, theEncodeContext);
theEventWriter.writeEndElement();
}
if (tags != null) {
for (Tag tag : tags) {
if (tag.isEmpty()) {
continue;
}
theEventWriter.writeStartElement("tag");
writeOptionalTagWithValue(theEventWriter, "system", tag.getScheme());
writeOptionalTagWithValue(theEventWriter, "code", tag.getTerm());
writeOptionalTagWithValue(theEventWriter, "display", tag.getLabel());
writeOptionalTagWithValue(theEventWriter, "version", tag.getVersion());
Boolean userSelected = tag.getUserSelectedBoolean();
if (userSelected != null) {
writeOptionalTagWithValue(theEventWriter, "userSelected", userSelected.toString());
}
theEventWriter.writeEndElement();
}
}
theEventWriter.writeEndElement();
}
if (theResource instanceof IBaseBinary) {
IBaseBinary bin = (IBaseBinary) theResource;
writeOptionalTagWithValue(theEventWriter, "contentType", bin.getContentType());
writeOptionalTagWithValue(theEventWriter, "content", bin.getContentAsBase64());
} else {
encodeCompositeElementToStreamWriter(
theResource,
theResource,
theEventWriter,
theContainedResource,
new CompositeChildElement(resDef, theEncodeContext),
theEncodeContext);
}
}
theEventWriter.writeEndElement();
}
private void encodeUndeclaredExtensions(
IBaseResource theResource,
XMLStreamWriter theEventWriter,
List> theExtensions,
String tagName,
boolean theIncludedResource,
EncodeContext theEncodeContext)
throws XMLStreamException, DataFormatException {
for (IBaseExtension next : theExtensions) {
if (next == null
|| (ElementUtil.isEmpty(next.getValue())
&& next.getExtension().isEmpty())) {
continue;
}
writeCommentsPre(theEventWriter, next);
theEventWriter.writeStartElement(tagName);
String elementId = getCompositeElementId(next);
if (isNotBlank(elementId)) {
theEventWriter.writeAttribute("id", elementId);
}
String url = getExtensionUrl(next.getUrl());
if (isNotBlank(url)) {
theEventWriter.writeAttribute("url", url);
}
if (next.getValue() != null) {
IBaseDatatype value = next.getValue();
RuntimeChildUndeclaredExtensionDefinition extDef =
getContext().getRuntimeChildUndeclaredExtensionDefinition();
String childName = extDef.getChildNameByDatatype(value.getClass());
BaseRuntimeElementDefinition childDef;
if (childName == null) {
childDef = getContext().getElementDefinition(value.getClass());
if (childDef == null) {
throw new ConfigurationException(
Msg.code(1855) + "Unable to encode extension, unrecognized child element type: "
+ value.getClass().getCanonicalName());
}
childName = RuntimeChildUndeclaredExtensionDefinition.createExtensionChildName(childDef);
} else {
childDef = extDef.getChildElementDefinitionByDatatype(value.getClass());
if (childDef == null) {
throw new ConfigurationException(
Msg.code(1856) + "Unable to encode extension, unrecognized child element type: "
+ value.getClass().getCanonicalName());
}
}
encodeChildElementToStreamWriter(
theResource,
theEventWriter,
extDef,
value,
childName,
childDef,
null,
theIncludedResource,
null,
theEncodeContext);
}
// child extensions
encodeExtensionsIfPresent(theResource, theEventWriter, next, theIncludedResource, theEncodeContext);
theEventWriter.writeEndElement();
writeCommentsPost(theEventWriter, next);
}
}
private void encodeXhtml(XhtmlDt theDt, XMLStreamWriter theEventWriter) throws XMLStreamException {
if (theDt == null || theDt.getValue() == null) {
return;
}
List events = XmlUtil.parse(theDt.getValue());
boolean firstElement = true;
for (XMLEvent event : events) {
switch (event.getEventType()) {
case XMLStreamConstants.ATTRIBUTE:
Attribute attr = (Attribute) event;
if (isBlank(attr.getName().getPrefix())) {
if (isBlank(attr.getName().getNamespaceURI())) {
theEventWriter.writeAttribute(attr.getName().getLocalPart(), attr.getValue());
} else {
theEventWriter.writeAttribute(
attr.getName().getNamespaceURI(),
attr.getName().getLocalPart(),
attr.getValue());
}
} else {
theEventWriter.writeAttribute(
attr.getName().getPrefix(),
attr.getName().getNamespaceURI(),
attr.getName().getLocalPart(),
attr.getValue());
}
break;
case XMLStreamConstants.CDATA:
theEventWriter.writeCData(((Characters) event).getData());
break;
case XMLStreamConstants.CHARACTERS:
case XMLStreamConstants.SPACE:
String data = ((Characters) event).getData();
theEventWriter.writeCharacters(data);
break;
case XMLStreamConstants.COMMENT:
theEventWriter.writeComment(((Comment) event).getText());
break;
case XMLStreamConstants.END_ELEMENT:
theEventWriter.writeEndElement();
break;
case XMLStreamConstants.ENTITY_REFERENCE:
EntityReference er = (EntityReference) event;
theEventWriter.writeEntityRef(er.getName());
break;
case XMLStreamConstants.NAMESPACE:
Namespace ns = (Namespace) event;
theEventWriter.writeNamespace(ns.getPrefix(), ns.getNamespaceURI());
break;
case XMLStreamConstants.START_ELEMENT:
StartElement se = event.asStartElement();
if (firstElement) {
if (StringUtils.isBlank(se.getName().getPrefix())) {
String namespaceURI = se.getName().getNamespaceURI();
if (StringUtils.isBlank(namespaceURI)) {
namespaceURI = "http://www.w3.org/1999/xhtml";
}
theEventWriter.writeStartElement(se.getName().getLocalPart());
theEventWriter.writeDefaultNamespace(namespaceURI);
} else {
String prefix = se.getName().getPrefix();
String namespaceURI = se.getName().getNamespaceURI();
theEventWriter.writeStartElement(
prefix, se.getName().getLocalPart(), namespaceURI);
theEventWriter.writeNamespace(prefix, namespaceURI);
}
firstElement = false;
} else {
if (isBlank(se.getName().getPrefix())) {
if (isBlank(se.getName().getNamespaceURI())) {
theEventWriter.writeStartElement(se.getName().getLocalPart());
} else {
if (StringUtils.isBlank(se.getName().getPrefix())) {
theEventWriter.writeStartElement(
se.getName().getLocalPart());
// theEventWriter.writeDefaultNamespace(se.getName().getNamespaceURI());
} else {
theEventWriter.writeStartElement(
se.getName().getNamespaceURI(),
se.getName().getLocalPart());
}
}
} else {
theEventWriter.writeStartElement(
se.getName().getPrefix(),
se.getName().getLocalPart(),
se.getName().getNamespaceURI());
}
}
for (Iterator attrIter = se.getAttributes(); attrIter.hasNext(); ) {
Attribute next = (Attribute) attrIter.next();
if (isBlank(next.getName().getNamespaceURI())) {
theEventWriter.writeAttribute(next.getName().getLocalPart(), next.getValue());
} else {
theEventWriter.writeAttribute(
next.getName().getPrefix(),
next.getName().getNamespaceURI(),
next.getName().getLocalPart(),
next.getValue());
}
}
break;
case XMLStreamConstants.DTD:
case XMLStreamConstants.END_DOCUMENT:
case XMLStreamConstants.ENTITY_DECLARATION:
case XMLStreamConstants.NOTATION_DECLARATION:
case XMLStreamConstants.PROCESSING_INSTRUCTION:
case XMLStreamConstants.START_DOCUMENT:
break;
}
}
}
@Override
public EncodingEnum getEncoding() {
return EncodingEnum.XML;
}
private T parseResource(Class theResourceType, XMLEventReader theStreamReader) {
ParserState parserState =
ParserState.getPreResourceInstance(this, theResourceType, getContext(), false, getErrorHandler());
return doXmlLoop(theStreamReader, parserState);
}
@Override
public IParser setPrettyPrint(boolean thePrettyPrint) {
myPrettyPrint = thePrettyPrint;
return this;
}
/**
* This is just to work around the fact that casting java.util.List to
* java.util.List> seems to be
* rejected by the compiler some of the time.
*/
private > List> toBaseExtensionList(final List theList) {
List> retVal = new ArrayList>(theList.size());
retVal.addAll(theList);
return retVal;
}
private void writeCommentsPost(XMLStreamWriter theEventWriter, IBase theElement) throws XMLStreamException {
if (theElement != null && theElement.hasFormatComment()) {
for (String next : theElement.getFormatCommentsPost()) {
if (isNotBlank(next)) {
theEventWriter.writeComment(next);
}
}
}
}
private void writeCommentsPre(XMLStreamWriter theEventWriter, IBase theElement) throws XMLStreamException {
if (theElement != null && theElement.hasFormatComment()) {
for (String next : theElement.getFormatCommentsPre()) {
if (isNotBlank(next)) {
theEventWriter.writeComment(next);
}
}
}
}
private void writeOptionalTagWithValue(XMLStreamWriter theEventWriter, String theName, String theValue)
throws XMLStreamException {
if (StringUtils.isNotBlank(theValue)) {
theEventWriter.writeStartElement(theName);
theEventWriter.writeAttribute("value", theValue);
theEventWriter.writeEndElement();
}
}
}
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