protected static Pair<Filter, ConstraintLanguage> parseConstraint(
XMLAdapter adapter, OMElement omQueryElement) {
Pair<Filter, ConstraintLanguage> pc = null;
if (omQueryElement != null
&& new QName(CSWConstants.CSW_202_NS, "Constraint").equals(omQueryElement.getQName())) {
Version versionConstraint =
adapter.getRequiredNodeAsVersion(omQueryElement, new XPath("@version", nsContext));
OMElement filterEl = omQueryElement.getFirstChildWithName(new QName(OGCNS, "Filter"));
OMElement cqlTextEl = omQueryElement.getFirstChildWithName(new QName("", "CQLTEXT"));
if ((filterEl != null) && (cqlTextEl == null)) {
ConstraintLanguage constraintLanguage = ConstraintLanguage.FILTER;
Filter constraint;
try {
// TODO remove usage of wrapper (necessary at the moment to work around problems
// with AXIOM's
XMLStreamReader xmlStream =
new XMLStreamReaderWrapper(filterEl.getXMLStreamReaderWithoutCaching(), null);
// skip START_DOCUMENT
xmlStream.nextTag();
if (versionConstraint.equals(new Version(1, 1, 0))) {
constraint = Filter110XMLDecoder.parse(xmlStream);
} else if (versionConstraint.equals(new Version(1, 0, 0))) {
constraint = Filter100XMLDecoder.parse(xmlStream);
} else {
String msg =
Messages.get(
"CSW_FILTER_VERSION_NOT_SPECIFIED",
versionConstraint,
Version.getVersionsString(new Version(1, 1, 0)),
Version.getVersionsString(new Version(1, 0, 0)));
LOG.info(msg);
throw new InvalidParameterValueException(msg);
}
} catch (XMLStreamException e) {
String msg =
"FilterParsingException: There went something wrong while parsing the filter expression, so please check this!";
LOG.debug(msg);
throw new XMLParsingException(adapter, filterEl, e.getMessage());
}
pc = new Pair<Filter, CSWConstants.ConstraintLanguage>(constraint, constraintLanguage);
} else if ((filterEl == null) && (cqlTextEl != null)) {
String msg = Messages.get("CSW_UNSUPPORTED_CQL_FILTER");
LOG.info(msg);
throw new NotImplementedError(msg);
} else {
String msg = Messages.get("CSW_MISSING_FILTER_OR_CQL");
LOG.debug(msg);
throw new InvalidParameterValueException(msg);
}
}
return pc;
}
@SuppressWarnings("boxing")
private static GetFeature parse100(Map<String, String> kvpParams, Map<String, String> nsMap)
throws Exception {
NamespaceBindings nsContext = new NamespaceBindings();
if (nsMap != null) {
for (String key : nsMap.keySet()) {
nsContext.addNamespace(key, nsMap.get(key));
}
}
StandardPresentationParams presentationParams =
parseStandardPresentationParameters100(kvpParams);
// optional: 'PROPERTYNAME'
String propertyStr = kvpParams.get("PROPERTYNAME");
PropertyName[][] propertyNames = getPropertyNames(propertyStr, nsContext);
// optional: FEATUREVERSION
String featureVersion = kvpParams.get("FEATUREVERSION");
// mandatory: TYPENAME, but optional if FEATUREID is specified
String typeStrList = kvpParams.get("TYPENAME");
TypeName[] typeNames = getTypeNames100(typeStrList);
// optional: FEATUREID
String featureIdStr = kvpParams.get("FEATUREID");
String[] featureIds = null;
if (featureIdStr != null) {
featureIds = featureIdStr.split(",");
}
// optional: BBOX
String bboxStr = kvpParams.get("BBOX");
// optional: FILTER
String filterStr = kvpParams.get("FILTER");
// optional: SRSNAME (not specified in WFS 1.0.0, deegree extension)
String srsName = kvpParams.get("SRSNAME");
ICRS srs = null;
if (srsName != null) {
srs = CRSManager.getCRSRef(srsName);
}
List<Query> queries = new ArrayList<Query>();
if ((featureIdStr != null && bboxStr != null)
|| (featureIdStr != null && filterStr != null)
|| (bboxStr != null && filterStr != null)) {
// TODO make new exception
throw new Exception("The FEATUREID, BBOX and FILTER keywords are mutually exclusive!");
}
if (featureIdStr != null) {
if (typeStrList == null && propertyNames == null) {
queries.add(new FeatureIdQuery(null, null, featureVersion, srs, null, null, featureIds));
} else {
for (int i = 0; i < featureIds.length; i++) {
String[] fids = new String[] {featureIds[i]};
TypeName[] typeName = new TypeName[0];
if (typeStrList != null) {
typeName = new TypeName[] {typeNames[i]};
}
PropertyName[] projectionClauses = null;
if (propertyNames != null) {
if (propertyNames.length > 1) {
projectionClauses = propertyNames[i];
} else {
projectionClauses = propertyNames[0];
}
}
queries.add(
new FeatureIdQuery(
null, typeName, featureVersion, srs, projectionClauses, null, fids));
}
}
} else if (bboxStr != null) {
if (typeNames == null) {
// TODO make new exception
throw new Exception("The TYPENAME keyword is mandatory if BBOX is present!");
}
String[] coordList = bboxStr.split(",");
ICRS bboxCrs = null;
if (coordList.length % 2 == 1) {
bboxCrs = CRSManager.getCRSRef(coordList[coordList.length - 1]);
}
Envelope bbox = createEnvelope(bboxStr, bboxCrs);
for (int i = 0; i < typeNames.length; i++) {
TypeName typeName = typeNames[i];
PropertyName[] projectionClauses = null;
if (propertyNames != null) {
projectionClauses = propertyNames[i];
}
queries.add(
new BBoxQuery(
null,
new TypeName[] {typeName},
featureVersion,
srs,
projectionClauses,
null,
bbox));
}
} else if (filterStr != null || typeNames != null) {
if (typeNames == null) {
// TODO make new exception
throw new Exception("The FILTER element requires the TYPENAME element");
}
int length = typeNames.length;
String[] filters = getFilters(filterStr);
for (int i = 0; i < length; i++) {
Filter filter = null;
if (filters != null) {
StringReader sr = new StringReader(filters[i]);
XMLAdapter adapter = new XMLAdapter(sr);
XMLStreamReaderWrapper streamWrapper =
new XMLStreamReaderWrapper(
adapter.getRootElement().getXMLStreamReaderWithoutCaching(),
adapter.getSystemId());
try {
streamWrapper.nextTag();
filter = Filter100XMLDecoder.parse(streamWrapper);
} catch (XMLParsingException e) {
e.printStackTrace();
// TODO raise exception
} catch (XMLStreamException e) {
e.printStackTrace();
// TODO raise exception
}
}
if (propertyNames != null) {
queries.add(
new FilterQuery(
null,
new TypeName[] {typeNames[i]},
featureVersion,
srs,
propertyNames[i],
null,
filter));
} else {
queries.add(
new FilterQuery(
null, new TypeName[] {typeNames[i]}, featureVersion, srs, null, null, filter));
}
}
}
return new GetFeature(VERSION_100, null, presentationParams, null, queries);
}