public static Query getQuery(OMElement omElement) {
if (new QName(CSWConstants.CSW_202_NS, "Query").equals(omElement.getQName())) {
XMLAdapter adapter = new XMLAdapter(omElement);
SortProperty[] sortProps = null;
Filter constraint = null;
ReturnableElement elementSetName = null;
String[] elementName = null;
ConstraintLanguage constraintLanguage = null;
List<OMElement> queryChildElements =
adapter.getRequiredElements(omElement, new XPath("*", nsContext));
String typeQuery =
adapter.getNodeAsString(omElement, new XPath("./@typeNames", nsContext), "");
if ("".equals(typeQuery)) {
String msg =
"ERROR in XML document: Required attribute \"typeNames\" in element \"Query\" is missing!";
throw new MissingParameterException(msg);
}
String[] queryTypeNamesString = StringUtils.split(typeQuery, " ");
QName[] queryTypeNames = new QName[queryTypeNamesString.length];
int counterQName = 0;
for (String s : queryTypeNamesString) {
LOG.debug("Parsing typeName '" + s + "' of Query as QName. ");
QName qname = adapter.parseQName(s, adapter.getRootElement());
queryTypeNames[counterQName++] = qname;
}
elementName = adapter.getNodesAsStrings(omElement, new XPath("./csw:ElementName", nsContext));
QName[] returnTypeNames = null;
for (OMElement omQueryElement : queryChildElements) {
// TODO mandatory exclusiveness between ElementSetName vs. ElementName not implemented yet
if (new QName(CSWConstants.CSW_202_NS, "ElementSetName")
.equals(omQueryElement.getQName())) {
String elementSetNameString = omQueryElement.getText();
elementSetName = ReturnableElement.determineReturnableElement(elementSetNameString);
// elementSetNameTypeNames = getNodesAsQNames( omQueryElement, new XPath( "@typeNames",
// nsContext ) );
String typeElementSetName =
adapter
.getNodeAsString(omQueryElement, new XPath("./@typeNames", nsContext), "")
.trim();
String[] elementSetNameTypeNamesString = StringUtils.split(typeElementSetName, " ");
returnTypeNames = new QName[elementSetNameTypeNamesString.length];
for (int i = 0; i < elementSetNameTypeNamesString.length; i++) {
returnTypeNames[i] = adapter.parseQName(elementSetNameTypeNamesString[i], omElement);
}
}
Pair<Filter, ConstraintLanguage> parsedConstraint =
parseConstraint(adapter, omQueryElement);
if (parsedConstraint != null) {
constraintLanguage = parsedConstraint.second;
constraint = parsedConstraint.first;
}
if (new QName(OGCNS, "SortBy").equals(omQueryElement.getQName())) {
List<OMElement> sortPropertyElements =
adapter.getRequiredElements(omQueryElement, new XPath("ogc:SortProperty", nsContext));
sortProps = new SortProperty[sortPropertyElements.size()];
int counter = 0;
for (OMElement sortPropertyEl : sortPropertyElements) {
OMElement propNameEl =
adapter.getRequiredElement(
sortPropertyEl, new XPath("ogc:PropertyName", nsContext));
String sortOrder =
adapter.getNodeAsString(
sortPropertyEl, new XPath("ogc:SortOrder", nsContext), "ASC");
SortProperty sortProp =
new SortProperty(
new ValueReference(
propNameEl.getText(), adapter.getNamespaceContext(propNameEl)),
sortOrder.equals("ASC"));
sortProps[counter++] = sortProp;
}
}
}
return new Query(
elementSetName,
elementName,
constraint,
constraintLanguage,
sortProps,
queryTypeNames,
returnTypeNames);
}
return null;
}
