/**
* validates the passed <tt>DescribeCoverage</tt> against the passed <tt>WCSCapabilities</tt>
*
* @param capabilities
* @param request
* @throws InvalidParameterValueException
*/
private static void validate(WCSCapabilities capabilities, DescribeCoverage request)
throws InvalidParameterValueException {
String[] coverages = request.getCoverages();
if (coverages != null) {
ContentMetadata cm = capabilities.getContentMetadata();
for (int i = 0; i < coverages.length; i++) {
if (cm.getCoverageOfferingBrief(coverages[i]) == null) {
throw new InvalidParameterValueException(
"Coverage: " + coverages[i] + "is not known by the WCS");
}
}
}
}
/**
* validates the passed <tt>GetCoverage</tt> against the passed <tt>WCSCapabilities</tt>
*
* @param capabilities
* @param request
* @throws InvalidParameterValueException
*/
private static void validate(WCSCapabilities capabilities, GetCoverage request)
throws InvalidParameterValueException {
String coverage = request.getSourceCoverage();
ContentMetadata cm = capabilities.getContentMetadata();
// is coverage known by the WCS?
CoverageOfferingBrief cob = cm.getCoverageOfferingBrief(coverage);
if (cob == null) {
throw new InvalidParameterValueException(
"Coverage: " + coverage + " is not known by the WCS");
}
URL url = cob.getConfiguration();
CoverageDescription cd = null;
try {
cd = CoverageDescription.createCoverageDescription(url);
} catch (Exception e) {
LOG.logError(e.getMessage(), e);
throw new InvalidParameterValueException(e.getMessage());
}
CoverageOffering co = cd.getCoverageOffering(coverage);
if (co == null) {
throw new InvalidParameterValueException(
"no coverage descrition " + "available for requested coverage: " + coverage);
}
// validate requested format
String format = request.getOutput().getFormat().getCode();
SupportedFormats sf = co.getSupportedFormats();
CodeList[] codeList = sf.getFormats();
if (!validate(codeList, null, format)) {
throw new InvalidParameterValueException(
"requested format: " + format + " is not known by the WCS for coverage:" + coverage);
}
// validate requested response CRS
String crs = request.getOutput().getCrs().getCode();
URI codeSpace = request.getOutput().getCrs().getCodeSpace();
String space = null;
if (codeSpace != null) {
space = codeSpace.toString();
}
CodeList[] rrcrs = co.getSupportedCRSs().getRequestResponseSRSs();
CodeList[] rescrs = co.getSupportedCRSs().getResponseSRSs();
if (!validate(rrcrs, space, crs) && !validate(rescrs, space, crs)) {
throw new InvalidParameterValueException(
"requested response CRS: "
+ crs
+ " is not known by the WCS "
+ "for coverage:"
+ coverage);
}
// validate requested CRS
crs = request.getDomainSubset().getRequestSRS().getCode();
codeSpace = request.getDomainSubset().getRequestSRS().getCodeSpace();
if (codeSpace != null) {
space = codeSpace.toString();
}
CodeList[] reqcrs = co.getSupportedCRSs().getRequestSRSs();
if (!validate(rrcrs, space, crs) && !validate(reqcrs, space, crs)) {
throw new InvalidParameterValueException(
"requested request CRS: " + crs + " is not known by the WCS for coverage:" + coverage);
}
// validate requested envelope
Envelope envelope = request.getDomainSubset().getSpatialSubset().getEnvelope();
LonLatEnvelope llEnv = cob.getLonLatEnvelope();
Envelope[] domEnvs = co.getDomainSet().getSpatialDomain().getEnvelops();
try {
if (!intersects(envelope, request.getDomainSubset().getRequestSRS(), domEnvs, llEnv)) {
throw new InvalidParameterValueException(
"requested BBOX: doesn't intersect "
+ " the area of the requested coverage: "
+ coverage);
}
} catch (UnknownCRSException e) {
throw new InvalidParameterValueException(e);
}
}
