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A public Web-RESTful-API for "ohsome" OpenStreetMap history data.
package org.heigit.ohsome.ohsomeapi.inputprocessing;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.IOException;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.EnumSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.tuple.ImmutablePair;
import org.apache.commons.lang3.tuple.Pair;
import org.geojson.GeoJsonObject;
import org.heigit.bigspatialdata.oshdb.api.db.OSHDBIgnite;
import org.heigit.bigspatialdata.oshdb.api.db.OSHDBIgnite.ComputeMode;
import org.heigit.bigspatialdata.oshdb.api.mapreducer.MapReducer;
import org.heigit.bigspatialdata.oshdb.api.mapreducer.Mappable;
import org.heigit.bigspatialdata.oshdb.api.mapreducer.OSMContributionView;
import org.heigit.bigspatialdata.oshdb.api.mapreducer.OSMEntitySnapshotView;
import org.heigit.bigspatialdata.oshdb.api.object.OSHDBMapReducible;
import org.heigit.bigspatialdata.oshdb.api.object.OSMContribution;
import org.heigit.bigspatialdata.oshdb.api.object.OSMEntitySnapshot;
import org.heigit.bigspatialdata.oshdb.osm.OSMType;
import org.heigit.bigspatialdata.oshdb.util.geometry.OSHDBGeometryBuilder;
import org.heigit.bigspatialdata.oshdb.util.time.IsoDateTimeParser;
import org.heigit.bigspatialdata.oshdb.util.time.OSHDBTimestamps;
import org.heigit.ohsome.filter.FilterExpression;
import org.heigit.ohsome.filter.FilterParser;
import org.heigit.ohsome.ohsomeapi.exception.BadRequestException;
import org.heigit.ohsome.ohsomeapi.exception.ExceptionMessages;
import org.heigit.ohsome.ohsomeapi.exception.ServiceUnavailableException;
import org.heigit.ohsome.ohsomeapi.executor.RequestParameters;
import org.heigit.ohsome.ohsomeapi.oshdb.DbConnData;
import org.heigit.ohsome.ohsomeapi.oshdb.ExtractMetadata;
import org.heigit.ohsome.ohsomeapi.utils.RequestUtils;
import org.locationtech.jts.geom.Geometry;
import org.locationtech.jts.geom.Polygonal;
import org.wololo.jts2geojson.GeoJSONWriter;
/**
* Holds general input processing and validation methods and validates specific parameters given by
* the request. Uses geometry methods from
* {@link org.heigit.ohsome.ohsomeapi.inputprocessing.GeometryBuilder GeometryBuilder} and
* inputProcessingUtils from {@link org.heigit.ohsome.ohsomeapi.inputprocessing.InputProcessingUtils
* InputProcessingUtils}. Throws exceptions depending on their validity.
*/
public class InputProcessor {
/*
* Represents about 1/500 of 180° * 360°.
*/
public static final int COMPUTE_MODE_THRESHOLD = 130;
private GeometryBuilder geomBuilder;
private InputProcessingUtils utils;
private ProcessingData processingData;
private boolean isSnapshot;
private boolean isDensity;
private String requestUrl;
private String requestMethod;
private String requestTimeout;
private Map requestParameters;
private boolean includeTags;
private boolean includeOSMMetadata;
private boolean clipGeometry = true;
public InputProcessor(ProcessingData processingData) {
this.processingData = processingData;
}
public InputProcessor(HttpServletRequest servletRequest, boolean isSnapshot, boolean isDensity) {
if (DbConnData.db instanceof OSHDBIgnite) {
checkClusterAvailability();
}
checkContentTypeHeader(servletRequest);
checkParameters(servletRequest);
this.isSnapshot = isSnapshot;
this.isDensity = isDensity;
processingData =
new ProcessingData(new RequestParameters(servletRequest.getMethod(), isSnapshot, isDensity,
servletRequest.getParameter("bboxes"), servletRequest.getParameter("bcircles"),
servletRequest.getParameter("bpolys"), servletRequest.getParameterValues("types"),
servletRequest.getParameterValues("keys"), servletRequest.getParameterValues("values"),
servletRequest.getParameterValues("time"), servletRequest.getParameter("format"),
servletRequest.getParameter("showMetadata"), ProcessingData.getTimeout(),
servletRequest.getParameter("filter")), servletRequest.getRequestURL().toString());
this.requestUrl = RequestUtils.extractRequestUrl(servletRequest);
this.requestMethod = servletRequest.getMethod();
this.requestTimeout = servletRequest.getParameter("timeout");
this.requestParameters = servletRequest.getParameterMap();
}
/**
* @throws Exception thrown by
* {@link org.heigit.ohsome.ohsomeapi.inputprocessing.InputProcessor#processParameters(ComputeMode)
* processParameters}
*/
public MapReducer processParameters() throws Exception {
return this.processParameters(null);
}
/**
* Processes the input parameters from the given request.
*
* @return {@link org.heigit.bigspatialdata.oshdb.api.mapreducer.MapReducer MapReducer} object
* including the settings derived from the given parameters.
* @throws BadRequestException if the boundary parameter is not defined or it has an invalid
* format, if the geometry of given boundary cannot be parsed for the creation of the
* response GeoJSON or if the keys, values and types parameters are not empty, while the
* filter parameter is set.
* @throws Exception thrown by
* {@link org.heigit.ohsome.ohsomeapi.inputprocessing.InputProcessor#extractTime(MapReducer, String[], boolean)
* extractTime}
*/
@SuppressWarnings("unchecked") // unchecked to allow cast of (MapReducer) to mapRed
public MapReducer processParameters(ComputeMode forceComputeMode)
throws Exception {
String bboxes = createEmptyStringIfNull(processingData.getRequestParameters().getBboxes());
String bcircles = createEmptyStringIfNull(processingData.getRequestParameters().getBcircles());
String bpolys = createEmptyStringIfNull(processingData.getRequestParameters().getBpolys());
String[] types =
splitParamOnComma(createEmptyArrayIfNull(processingData.getRequestParameters().getTypes()));
String[] keys =
splitParamOnComma(createEmptyArrayIfNull(processingData.getRequestParameters().getKeys()));
String[] values = splitParamOnComma(
createEmptyArrayIfNull(processingData.getRequestParameters().getValues()));
String[] time =
splitParamOnComma(createEmptyArrayIfNull(processingData.getRequestParameters().getTime()));
String format = createEmptyStringIfNull(processingData.getRequestParameters().getFormat());
String showMetadata =
createEmptyStringIfNull(processingData.getRequestParameters().getShowMetadata());
double timeout = defineRequestTimeout();
String filter = createEmptyStringIfNull(processingData.getRequestParameters().getFilter());
// overwriting RequestParameters object with splitted/non-null parameters
processingData
.setRequestParameters(new RequestParameters(requestMethod, isSnapshot, isDensity, bboxes,
bcircles, bpolys, types, keys, values, time, format, showMetadata, timeout, filter));
processingData.setFormat(format);
MapReducer mapRed = null;
processingData.setBoundaryType(setBoundaryType(bboxes, bcircles, bpolys));
geomBuilder = new GeometryBuilder(processingData);
utils = new InputProcessingUtils();
Geometry boundary;
try {
switch (processingData.getBoundaryType()) {
case NOBOUNDARY:
if (ExtractMetadata.dataPoly == null) {
throw new BadRequestException(ExceptionMessages.NO_BOUNDARY);
}
boundary = ExtractMetadata.dataPoly;
break;
case BBOXES:
processingData.setBoundaryValues(utils.splitBboxes(bboxes).toArray(new String[] {}));
boundary = geomBuilder.createBboxes(processingData.getBoundaryValues());
break;
case BCIRCLES:
processingData.setBoundaryValues(utils.splitBcircles(bcircles).toArray(new String[] {}));
boundary = geomBuilder.createCircularPolygons(processingData.getBoundaryValues());
break;
case BPOLYS:
if (bpolys.matches("^\\s*\\{[\\s\\S]*")) {
boundary = geomBuilder.createGeometryFromGeoJson(bpolys, this);
} else {
processingData.setBoundaryValues(utils.splitBpolys(bpolys).toArray(new String[] {}));
boundary = geomBuilder.createBpolys(processingData.getBoundaryValues());
}
break;
default:
throw new BadRequestException(ExceptionMessages.BOUNDARY_PARAM_FORMAT_OR_COUNT);
}
} catch (ClassCastException e) {
throw new BadRequestException(ExceptionMessages.BOUNDARY_PARAM_FORMAT);
}
if (DbConnData.db instanceof OSHDBIgnite) {
final OSHDBIgnite dbIgnite = (OSHDBIgnite) DbConnData.db;
if (forceComputeMode != null) {
dbIgnite.computeMode(forceComputeMode);
} else {
ComputeMode computeMode;
double boundarySize = boundary.getEnvelope().getArea();
if (boundarySize <= COMPUTE_MODE_THRESHOLD) {
computeMode = ComputeMode.LocalPeek;
} else {
computeMode = ComputeMode.ScanQuery;
}
dbIgnite.computeMode(computeMode);
}
}
DbConnData.db.timeout(timeout);
if (isSnapshot) {
if (DbConnData.keytables == null) {
mapRed = OSMEntitySnapshotView.on(DbConnData.db);
} else {
mapRed = OSMEntitySnapshotView.on(DbConnData.db).keytables(DbConnData.keytables);
}
} else {
if (DbConnData.keytables == null) {
mapRed = OSMContributionView.on(DbConnData.db);
} else {
mapRed = OSMContributionView.on(DbConnData.db).keytables(DbConnData.keytables);
}
}
if (boundary.isRectangle()) {
mapRed =
mapRed.areaOfInterest(OSHDBGeometryBuilder.boundingBoxOf(boundary.getEnvelopeInternal()));
} else {
mapRed = mapRed.areaOfInterest((Geometry & Polygonal) boundary);
}
processShowMetadata(showMetadata);
checkFormat(processingData.getFormat());
if ("geojson".equalsIgnoreCase(processingData.getFormat())) {
GeoJSONWriter writer = new GeoJSONWriter();
Collection boundaryColl = processingData.getBoundaryList();
GeoJsonObject[] geoJsonGeoms = new GeoJsonObject[boundaryColl.size()];
for (int i = 0; i < geoJsonGeoms.length; i++) {
try {
geoJsonGeoms[i] = new ObjectMapper().readValue(
writer.write((Geometry) boundaryColl.toArray()[i]).toString(), GeoJsonObject.class);
} catch (IOException e) {
throw new BadRequestException(ExceptionMessages.BOUNDARY_PARAM_GEOJSON_FORMAT);
}
}
processingData.setGeoJsonGeoms(geoJsonGeoms);
}
mapRed = defineTypes(types, mapRed);
// the OSM type will be set in the ratio implementation within the ElementsRequestExecutor.java
if (!processingData.isRatio()) {
mapRed = mapRed.osmType((EnumSet) processingData.getOsmTypes());
}
if (processingData.isContainingSimpleFeatureTypes()
// skip in ratio or groupByBoundary requests -> needs to be done later in the processing
&& !processingData.isRatio() && !processingData.isGroupByBoundary()
&& !processingData.isFullHistory()) {
mapRed = filterOnSimpleFeatures(mapRed);
}
mapRed = extractTime(mapRed, time, isSnapshot);
if (!"".equals(filter)) {
if (keys.length != 0 || values.length != 0 || types.length != 0) {
throw new BadRequestException(ExceptionMessages.FILTER_PARAM);
} else {
// call translator and add filters to mapRed
FilterParser fp = new FilterParser(DbConnData.tagTranslator);
FilterExpression filterExpr = utils.parseFilter(fp, filter);
processingData.setFilterExpression(filterExpr);
if (!(processingData.isRatio()
|| processingData.isGroupByBoundary()
|| processingData.isFullHistory())) {
// skip in ratio or groupByBoundary requests -> needs to be done later in the processing
mapRed = mapRed.filter(filterExpr);
}
}
} else {
mapRed = extractKeysValues(mapRed, keys, values);
}
return (MapReducer) mapRed;
}
/**
* Defines the type(s) out of the given String[].
*
* @param types String array containing one, two, or all 3 OSM types (node, way,
* relation), or simple feature types (point, line, polygon, other). If the array is empty,
* all three OSM types are used.
*/
public MapReducer defineTypes(String[] types,
MapReducer mapRed) {
types = createEmptyArrayIfNull(types);
checkTypes(types);
processingData.setOsmTypes(EnumSet.noneOf(OSMType.class));
if (types.length == 0 || types.length == 1 && types[0].isEmpty()) {
processingData.setOsmTypes(EnumSet.of(OSMType.NODE, OSMType.WAY, OSMType.RELATION));
} else {
if (!processingData.isContainingSimpleFeatureTypes()) {
for (String type : types) {
if ("node".equalsIgnoreCase(type)) {
processingData.getOsmTypes().add(OSMType.NODE);
} else if ("way".equalsIgnoreCase(type)) {
processingData.getOsmTypes().add(OSMType.WAY);
} else {
processingData.getOsmTypes().add(OSMType.RELATION);
}
}
} else {
processingData.setSimpleFeatureTypes(defineSimpleFeatureTypes(types));
if (!processingData.isRatio() && (processingData.getOsmTypes().contains(OSMType.WAY)
|| processingData.getOsmTypes().contains(OSMType.RELATION))) {
mapRed = utils.filterOnPlanarRelations(mapRed);
}
}
}
return mapRed;
}
/** Defines the simple feature types and corresponding OSM types out of the given String array. */
public EnumSet defineSimpleFeatureTypes(String[] types) {
EnumSet simpleFeatures = EnumSet.noneOf(SimpleFeatureType.class);
for (String type : types) {
if ("point".equalsIgnoreCase(type)) {
simpleFeatures.add(SimpleFeatureType.POINT);
processingData.getOsmTypes().add(OSMType.NODE);
} else if ("line".equalsIgnoreCase(type)) {
simpleFeatures.add(SimpleFeatureType.LINE);
processingData.getOsmTypes().add(OSMType.WAY);
} else if ("polygon".equalsIgnoreCase(type)) {
simpleFeatures.add(SimpleFeatureType.POLYGON);
processingData.getOsmTypes().add(OSMType.WAY);
processingData.getOsmTypes().add(OSMType.RELATION);
} else if ("other".equalsIgnoreCase(type)) {
simpleFeatures.add(SimpleFeatureType.OTHER);
processingData.getOsmTypes().add(OSMType.RELATION);
}
}
return simpleFeatures;
}
/**
* Splits the given input parameter on ',' if it has a length of 1 and contains ',' at [0].
* Returns a String array containing the splits.
*
* @param param String array containing the content to split
* @return String array containing the splitted parameter content
*/
public String[] splitParamOnComma(String[] param) {
if (param.length == 1 && param[0].contains(",")) {
return param[0].replaceAll("\\s", "").split(",");
}
return param;
}
/**
* Creates an empty array if an input parameter of a POST request is null.
*
* @param toCheck String array, which is checked.
* @return String array, which is empty.
*/
public String[] createEmptyArrayIfNull(String[] toCheck) {
if (toCheck == null) {
toCheck = new String[0];
}
return toCheck;
}
/**
* Creates an empty String, if a given input parameter is null.
*
* @param toCheck String, which is checked.
* @return String, which may be empty but not null.
*/
public String createEmptyStringIfNull(String toCheck) {
if (toCheck == null) {
toCheck = "";
}
return toCheck;
}
/**
* Checks the given keys and values String[] on their length.
*
* @throws BadRequestException if values_n doesn't fit to keys_n. There cannot be more input
* values in the values|values2 than in the keys|keys2 parameter.
*/
public void checkKeysValues(String[] keys, String[] values) {
if (values != null && keys.length < values.length) {
throw new BadRequestException(ExceptionMessages.KEYS_VALUES_RATIO_INVALID);
}
}
/**
* Compares the keys and values arrays with each other. Returns true only if keys=keys2 and
* values=values2.
*/
public boolean compareKeysValues(String[] keys, String[] keys2, String[] values,
String[] values2) {
return Arrays.equals(keys, keys2) && Arrays.equals(values, values2);
}
/** Used in /ratio requests. */
public Pair processKeys2Vals2(String[] keys2, String[] values2) {
keys2 = createEmptyArrayIfNull(keys2);
values2 = createEmptyArrayIfNull(values2);
return new ImmutablePair<>(keys2, values2);
}
/**
* Processes the properties parameter used in data-extraction ressources and sets the respective
* boolean values includeTags, includeOSMMetadata and unclippedGeometries.
*
* @throws BadRequestException if the properties parameter contains invalid values
*/
public void processPropertiesParam() {
String[] properties =
splitParamOnComma(createEmptyArrayIfNull(requestParameters.get("properties")));
if (properties.length > 3) {
throw new BadRequestException(ExceptionMessages.PROPERTIES_PARAM);
}
for (String property : properties) {
@Deprecated
boolean oldUnclippedParameter = "unclipped".equalsIgnoreCase(property);
if ("tags".equalsIgnoreCase(property)) {
this.includeTags = true;
} else if ("metadata".equalsIgnoreCase(property)) {
this.includeOSMMetadata = true;
} else if (oldUnclippedParameter) {
this.clipGeometry = false;
} else {
throw new BadRequestException(ExceptionMessages.PROPERTIES_PARAM);
}
}
}
/**
* Processes the clipGeometry parameter used in data-extraction resources and sets the respective
* boolean value 'clipGeometry'. Note: this method is called after processPropertiesParam() so it
* could overwrite the previously defined value of 'clipGeometry'.
*/
public void processIsUnclippedParam() {
if (null != requestParameters.get("clipGeometry")) {
this.clipGeometry =
processBooleanParam("clipGeometry", requestParameters.get("clipGeometry")[0]);
}
}
/** Returns the request URL if a GET request was sent. */
public String getRequestUrlIfGetRequest(HttpServletRequest servletRequest) {
if (!"post".equalsIgnoreCase(servletRequest.getMethod())) {
return this.getRequestUrl();
}
return null;
}
/**
* Applies respective Puntal|Lineal|Polygonal filter(s) on features of the given MapReducer.
*
* @return MapReducer with filtered geometries
* @throws RuntimeException if
* {@link org.heigit.ohsome.ohsomeapi.inputprocessing.InputProcessor#filterOnSimpleFeatures(Mappable)
* filterOnSimpleFeatures} was called on mapped entries
*/
// suppressed, as filter always returns the same mappable type T
@SuppressWarnings("unchecked")
public > T filterOnSimpleFeatures(T mapRed) {
Set simpleFeatureTypes = processingData.getSimpleFeatureTypes();
return (T) mapRed.filter(data -> {
if (data instanceof OSMEntitySnapshot) {
Geometry snapshotGeom;
if (clipGeometry) {
snapshotGeom = ((OSMEntitySnapshot) data).getGeometry();
} else {
snapshotGeom = ((OSMEntitySnapshot) data).getGeometryUnclipped();
}
return utils.checkGeometryOnSimpleFeatures(snapshotGeom, simpleFeatureTypes);
} else if (data instanceof OSMContribution) {
Geometry contribGeomBefore;
Geometry contribGeomAfter;
if (clipGeometry) {
contribGeomBefore = ((OSMContribution) data).getGeometryBefore();
contribGeomAfter = ((OSMContribution) data).getGeometryAfter();
} else {
contribGeomBefore = ((OSMContribution) data).getGeometryUnclippedBefore();
contribGeomAfter = ((OSMContribution) data).getGeometryUnclippedAfter();
}
return contribGeomBefore != null
&& utils.checkGeometryOnSimpleFeatures(contribGeomBefore, simpleFeatureTypes)
|| contribGeomAfter != null
&& utils.checkGeometryOnSimpleFeatures(contribGeomAfter, simpleFeatureTypes);
} else {
assert false : "filterOnSimpleFeatures() called on mapped entries";
throw new RuntimeException("filterOnSimpleFeatures() called on mapped entries");
}
});
}
/**
* Checks the given filter parameter if it's null or blank. Currently used for filter2 parameter
* of /ratio processing.
*
* @param filter parameter to be checked
* @throws BadRequestException if the given filter parameter is null or blank.
*/
public void checkFilter(String filter) {
if (null == filter || filter.isBlank() && processingData.isRatio()) {
throw new BadRequestException(
"The filter2 parameter has to be defined when using a /ratio endpoint.");
}
}
/**
* Checks the given keys and values parameters on their length and includes them in the
* {@link org.heigit.bigspatialdata.oshdb.api.mapreducer.MapReducer#osmTag(String) osmTag(key)},
* or {@link org.heigit.bigspatialdata.oshdb.api.mapreducer.MapReducer#osmTag(String, String)
* osmTag(key, value)} method.
*
* @param mapRed current {@link org.heigit.bigspatialdata.oshdb.api.mapreducer.MapReducer
* MapReducer} object
* @return {@link org.heigit.bigspatialdata.oshdb.api.mapreducer.MapReducer MapReducer} object
* including the filters derived from the given parameters.
*/
private MapReducer extractKeysValues(
MapReducer mapRed, String[] keys, String[] values) {
checkKeysValues(keys, values);
if (keys.length != values.length) {
String[] tempVal = new String[keys.length];
for (int a = 0; a < values.length; a++) {
tempVal[a] = values[a];
}
for (int i = values.length; i < keys.length; i++) {
tempVal[i] = "";
}
values = tempVal;
}
// prerequisites: both arrays (keys and values) must be of the same length
// and key-value pairs need to be at the same index in both arrays
for (int i = 0; i < keys.length; i++) {
if ("".equals(values[i])) {
mapRed = mapRed.osmTag(keys[i]);
} else {
mapRed = mapRed.osmTag(keys[i], values[i]);
}
}
return mapRed;
}
/**
* Extracts the information from the given time array and fills the toTimestamps[] with content
* (in case of isSnapshot=false).
*
* @throws BadRequestException if the time format is invalid
* @throws Exception thrown by {@link
* org.heigit.bigspatialdata.oshdb.util.time.IsoDateTimeParser#parseIsoDateTime(String)
* parseIsoDateTime}
*/
private MapReducer extractTime(
MapReducer mapRed, String[] time, boolean isSnapshot)
throws Exception {
String[] toTimestamps = null;
String[] timeData;
if (time.length == 0 || time[0].replaceAll("\\s", "").length() == 0 && time.length == 1) {
if (!isSnapshot) {
toTimestamps = new String[] {ExtractMetadata.fromTstamp, ExtractMetadata.toTstamp};
mapRed = mapRed.timestamps(ExtractMetadata.fromTstamp, ExtractMetadata.toTstamp);
} else {
mapRed = mapRed.timestamps(ExtractMetadata.toTstamp);
}
} else if (time.length == 1) {
timeData = utils.extractIsoTime(time[0]);
if (!isSnapshot) {
toTimestamps = utils.defineToTimestamps(timeData);
}
if (timeData[2] != null) {
// interval is given
mapRed = mapRed.timestamps(new OSHDBTimestamps(timeData[0], timeData[1], timeData[2]));
} else if (timeData[1] != null) {
mapRed = mapRed.timestamps(timeData[0], timeData[1]);
} else {
if (!isSnapshot) {
throw new BadRequestException(ExceptionMessages.TIME_FORMAT_CONTRIBUTION);
}
mapRed = mapRed.timestamps(timeData[0]);
}
} else {
utils.checkTimestampsOnIsoConformity(time);
for (String timestamp : time) {
ZonedDateTime zdt = IsoDateTimeParser.parseIsoDateTime(timestamp);
utils.checkTemporalExtend(zdt.format(DateTimeFormatter.ISO_DATE_TIME));
}
timeData = utils.sortTimestamps(time);
if (!isSnapshot) {
toTimestamps = utils.defineToTimestamps(timeData);
}
String firstElem = timeData[0];
timeData = ArrayUtils.remove(timeData, 0);
mapRed = mapRed.timestamps(firstElem, firstElem, timeData);
}
utils.setToTimestamps(toTimestamps);
return mapRed;
}
/**
* Checks the given type(s) String[] on its length and content.
*
* @throws BadRequestException if the given types parameter is invalid.
*/
private void checkTypes(String[] types) {
if (types.length > 4) {
throw new BadRequestException(
"Parameter 'types' (and 'types2') cannot have more than 4 entries.");
} else if (types.length == 0 || types.length == 1 && types[0].isEmpty()) {
// do nothing
} else {
processingData.setContainingSimpleFeatureTypes(!"node".equalsIgnoreCase(types[0])
&& !"way".equalsIgnoreCase(types[0]) && !"relation".equalsIgnoreCase(types[0]));
for (String type : types) {
if (utils.isSimpleFeatureType(type)) {
if (!processingData.isContainingSimpleFeatureTypes()) {
throw new BadRequestException(ExceptionMessages.TYPES_PARAM);
}
} else {
if (processingData.isContainingSimpleFeatureTypes()) {
throw new BadRequestException(ExceptionMessages.TYPES_PARAM);
}
}
}
}
}
/**
* Checks the content of the given format parameter.
*
* @throws BadRequestException if the given format parameter is invalid.
*/
private void checkFormat(String format) {
if (format != null && !format.isEmpty() && !"geojson".equalsIgnoreCase(format)
&& !"json".equalsIgnoreCase(format) && !"csv".equalsIgnoreCase(format)) {
throw new BadRequestException(
"The given 'format' parameter is invalid. Please choose between 'geojson'(only available"
+ " for /groupBy/boundary and data extraction requests), 'json', or 'csv'.");
}
}
/**
* Defines the timeout for this request depending on the given timeout parameter. If it is smaller
* than the predefined value, it is used for this request.
*
* @return double value defining the timeout for this request
* @throws BadRequestException if the given timeout parameter is larger than the predefined one
*/
private double defineRequestTimeout() {
double timeout = ProcessingData.getTimeout();
String requestTimeoutString = createEmptyStringIfNull(requestTimeout);
if (!requestTimeoutString.isEmpty()) {
double requestTimeoutDouble;
try {
requestTimeoutDouble = Double.parseDouble(requestTimeoutString);
} catch (Exception e) {
throw new BadRequestException(ExceptionMessages.TIMEOUT_FORMAT);
}
if (requestTimeoutDouble <= timeout) {
timeout = requestTimeoutDouble;
} else {
throw new BadRequestException(
ExceptionMessages.TIMEOUT + ProcessingData.getTimeout() + " seconds");
}
}
return timeout;
}
/**
* Sets a corresponding enum (NOBOUNDARY for no boundary, BBOXES for bboxes, BCIRCLES for
* bcircles, BPOLYS for bpolys) based on the given boundary parameter(s). Only one of them is
* allowed to have content in it.
*
* @param bboxes String containing the bounding boxes separated via a pipe (|) and
* optional custom names at each first coordinate appended with a colon (:).
* @param bcircles String containing the bounding circles separated via a pipe (|)
* and optional custom names at each first coordinate appended with a colon (:).
* @param bpolys String containing the bounding polygons separated via a pipe (|) and
* optional custom names at each first coordinate appended with a colon (:).
* @throws BadRequestException if there is not exactly one boundary parameter defined
*/
private BoundaryType setBoundaryType(String bboxes, String bcircles, String bpolys) {
if (bboxes.isEmpty() && bcircles.isEmpty() && bpolys.isEmpty()) {
throw new BadRequestException(ExceptionMessages.NO_BOUNDARY);
} else if (!bboxes.isEmpty() && bcircles.isEmpty() && bpolys.isEmpty()) {
return BoundaryType.BBOXES;
} else if (bboxes.isEmpty() && !bcircles.isEmpty() && bpolys.isEmpty()) {
return BoundaryType.BCIRCLES;
} else if (bboxes.isEmpty() && bcircles.isEmpty() && !bpolys.isEmpty()) {
return BoundaryType.BPOLYS;
} else {
throw new BadRequestException(ExceptionMessages.BOUNDARY_PARAM_FORMAT_OR_COUNT);
}
}
/**
* Checks, if the cluster has less active server nodes, than defined on startup.
*
* @throws ServiceUnavailableException in case one or more nodes are inactive.
*/
private void checkClusterAvailability() {
OSHDBIgnite igniteDb = (OSHDBIgnite) DbConnData.db;
int definedNumberOfNodes = ProcessingData.getNumberOfClusterNodes();
int currentNumberOfNodes =
igniteDb.getIgnite().services().clusterGroup().metrics().getTotalNodes();
if (currentNumberOfNodes < definedNumberOfNodes) {
throw new ServiceUnavailableException("The cluster backend is currently not able to process "
+ "your request. Please try again later.");
}
}
/**
* Checks, if the given content-type header is either 'application/x-www-form-urlencoded' or
* 'multipart/form-data'.
*
* @throws BadRequestException if an unsupported header is given.
*/
private void checkContentTypeHeader(HttpServletRequest servletRequest) {
String contentType = servletRequest.getHeader("content-type");
if (contentType == null) {
return;
}
if (!contentType.contains("application/x-www-form-urlencoded")
&& !contentType.contains("multipart/form-data")) {
throw new BadRequestException("Unsupported content-type header found. Please make sure to "
+ "use either 'multipart/form-data' or 'application/x-www-form-urlencoded'.");
}
}
/**
* Checks, if there are false or repeated parameters in the request. It suggests possible
* parameters based on fuzzy matching scores.
*
* @throws BadRequestException in case of invalid parameter or if a parameter is given more than
* once
*/
private void checkParameters(HttpServletRequest servletRequest) {
List possibleParameters = ResourceParameters.getResourceSpecificParams(servletRequest);
List unexpectedParams =
ResourceParameters.checkUnexpectedParams(servletRequest, possibleParameters);
if (!unexpectedParams.isEmpty()) {
String unexpectedParam = unexpectedParams.get(0);
throw new BadRequestException(
StringSimilarity.findSimilarParameters(unexpectedParam, possibleParameters));
}
if (servletRequest.getQueryString() != null) {
String queryString = servletRequest.getQueryString();
String[] queryStringArray = queryString.split("&");
List paramsValuesList = Arrays.asList(queryStringArray);
List paramsList = new ArrayList<>();
String param;
for (int i = 0; i < paramsValuesList.size(); i++) {
if (!paramsValuesList.get(i).contains("=")) {
paramsValuesList.set(i, paramsValuesList.get(i).concat("="));
}
param = paramsValuesList.get(i).substring(0, paramsValuesList.get(i).indexOf("="));
paramsList.add(param);
}
for (String parameter : paramsList) {
if (Collections.frequency(paramsList, parameter) > 1) {
throw new BadRequestException("Every parameter has to be unique. "
+ "You can't give more than one '" + parameter + "' parameter.");
}
}
}
}
/**
* Processes the given showMetadata parameter and sets the respective value in the processingData
* object.
*/
private void processShowMetadata(String showMetadata) {
processingData.setShowMetadata(processBooleanParam("showMetadata", showMetadata));
}
/**
* Tries to extract and set a boolean value out of the given parameter. Assumes that the default
* value of the parameter is false.
*
* @throws BadRequestException if the value of the parameter is not attributable to a boolean
* value.
*/
private boolean processBooleanParam(String paramName, String paramValue) {
if (paramValue == null) {
return false;
} else if ("true".equalsIgnoreCase(paramValue.replaceAll("\\s", ""))
|| "yes".equalsIgnoreCase(paramValue.replaceAll("\\s", ""))) {
return true;
} else if ("false".equalsIgnoreCase(paramValue.replaceAll("\\s", ""))
|| "".equals(paramValue.replaceAll("\\s", ""))
|| "no".equalsIgnoreCase(paramValue.replaceAll("\\s", ""))) {
return false;
} else {
throw new BadRequestException("The given parameter " + paramName + " can only contain the "
+ "values 'true', 'yes', 'false', or 'no'.");
}
}
/**
* Gets the geometry from the currently in-use boundary object(s).
*
* @return Geometry object of the used boundary parameter.
*/
public Geometry getGeometry() {
Geometry geom;
if (BoundaryType.NOBOUNDARY == processingData.getBoundaryType()) {
geom = ProcessingData.getDataPolyGeom();
} else {
geom = processingData.getRequestGeom();
}
return geom;
}
public GeometryBuilder getGeomBuilder() {
return geomBuilder;
}
public InputProcessingUtils getUtils() {
return utils;
}
public void setUtils(InputProcessingUtils utils) {
this.utils = utils;
}
public ProcessingData getProcessingData() {
return processingData;
}
public void setProcessingData(ProcessingData processingData) {
this.processingData = processingData;
}
public String getRequestUrl() {
return requestUrl;
}
public boolean includeTags() {
return includeTags;
}
public boolean includeOSMMetadata() {
return includeOSMMetadata;
}
public boolean isClipGeometry() {
return clipGeometry;
}
}