@Test
public void testForceCoverage() throws Exception {
// force the data to another projection
Catalog catalog = getCatalog();
CoverageInfo ci = catalog.getCoverageByName("usa");
ci.setProjectionPolicy(ProjectionPolicy.FORCE_DECLARED);
ci.setSRS("EPSG:3857");
catalog.save(ci);
ci = catalog.getCoverageByName("usa");
assertEquals(ProjectionPolicy.FORCE_DECLARED, ci.getProjectionPolicy());
assertEquals("EPSG:3857", ci.getSRS());
// now get the reader via the coverage info
AbstractGridCoverage2DReader r;
r = (AbstractGridCoverage2DReader) ci.getGridCoverageReader(null, GeoTools.getDefaultHints());
assertTrue(CRS.equalsIgnoreMetadata(CRS.decode("EPSG:3857"), r.getCrs()));
// and again without any hint
r = (AbstractGridCoverage2DReader) ci.getGridCoverageReader(null, null);
assertTrue(CRS.equalsIgnoreMetadata(CRS.decode("EPSG:3857"), r.getCrs()));
// get the reader straight: we should get back the native projection
CoverageStoreInfo store = catalog.getCoverageStoreByName("usa");
final ResourcePool rpool = catalog.getResourcePool();
r =
(AbstractGridCoverage2DReader)
rpool.getGridCoverageReader(store, GeoTools.getDefaultHints());
assertTrue(CRS.equalsIgnoreMetadata(CRS.decode("EPSG:4326"), r.getCrs()));
}
@Test
public void testReproject() throws Exception {
String xml =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+ "<GetCoverage version=\"1.0.0\" service=\"WCS\" "
+ "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" "
+ "xmlns=\"http://www.opengis.net/wcs\" "
+ "xmlns:ows=\"http://www.opengis.net/ows/1.1\" "
+ "xmlns:gml=\"http://www.opengis.net/gml\" "
+ "xmlns:ogc=\"http://www.opengis.net/ogc\" "
+ "xsi:schemaLocation=\"http://www.opengis.net/wcs http://schemas.opengis.net/wcs/1.0.0/getCoverage.xsd\">\n"
+ " <sourceCoverage>"
+ getLayerId(TASMANIA_BM)
+ "</sourceCoverage>\n"
+ " <domainSubset>\n"
+ " <spatialSubset>\n"
+ " <gml:Envelope srsName=\"EPSG:4326\">\n"
+ " <gml:pos>146 -45</gml:pos>\n"
+ " <gml:pos>147 42</gml:pos>\n"
+ " </gml:Envelope>\n"
+ " <gml:Grid dimension=\"2\">\n"
+ " <gml:limits>\n"
+ " <gml:GridEnvelope>\n"
+ " <gml:low>0 0</gml:low>\n"
+ " <gml:high>150 150</gml:high>\n"
+ " </gml:GridEnvelope>\n"
+ " </gml:limits>\n"
+ " <gml:axisName>x</gml:axisName>\n"
+ " <gml:axisName>y</gml:axisName>\n"
+ " </gml:Grid>\n"
+ " </spatialSubset>\n"
+ " </domainSubset>\n"
+ " <output>\n"
+ " <crs>EPSG:3857</crs>\n"
+ " <format>image/geotiff</format>\n"
+ " </output>\n"
+ "</GetCoverage>";
MockHttpServletResponse response = postAsServletResponse("wcs", xml);
assertEquals("image/tiff", response.getContentType());
GeoTiffFormat format = new GeoTiffFormat();
AbstractGridCoverage2DReader reader = format.getReader(getBinaryInputStream(response));
assertEquals(
CRS.decode("EPSG:3857"), reader.getOriginalEnvelope().getCoordinateReferenceSystem());
}
@Override
public GridCoverage2D read(GeneralParameterValue[] parameters)
throws IllegalArgumentException, IOException {
File baseDir = FileUtils.createTempDirectory();
try {
File file = readToFile(baseDir, "WcsCoverageReader", parameters);
// since the requested format may be one of several we need to look
// up the format object
// for reading the coverage from the file
Format format = GridFormatFinder.findFormat(file);
if (format instanceof AbstractGridFormat && UnknownFormat.class != format.getClass()) {
AbstractGridFormat gridFormat = (AbstractGridFormat) format;
// Now we need to find the parameters provided by the caller for
// reading the coverage from the file
// See the format API for details
GeneralParameterValue[] readParams = new GeneralParameterValue[0];
try {
ParameterValueGroup group = format.getReadParameters();
List<GeneralParameterValue> list = new ArrayList<GeneralParameterValue>();
for (GeneralParameterValue paramValue : group.values()) {
list.addAll(find(paramValue, parameters));
}
LOG.debug("Reading coverage from file using parameters: " + list);
readParams = list.toArray(new GeneralParameterValue[list.size()]);
} catch (Exception e) {
// if can't configure the parameters then try to read with
// what we have been able to configure
LOG.warn("Exception occurred while getting request params for reading coverage", e);
}
AbstractGridCoverage2DReader reader = gridFormat.getReader(file);
GridCoverage2D coverage = reader.read(readParams);
return coverage;
}
throw new IllegalArgumentException(
"Current configuration is unable to read coverage of "
+ file.getName()
+ " format. "
+ "Check that you have the correct geotools plugins");
} finally {
FileUtils.delete(baseDir);
}
}
public String[] listSubNames() {
return delegate.listSubNames();
}
public boolean hasMoreGridCoverages() {
return delegate.hasMoreGridCoverages();
}
public double[] getReadingResolutions(OverviewPolicy policy, double[] requestedResolution) {
return delegate.getReadingResolutions(policy, requestedResolution);
}
public String getMetadataValue(String name) {
return delegate.getMetadataValue(name);
}
public String[] getMetadataNames() {
return delegate.getMetadataNames();
}
public ServiceInfo getInfo() {
return delegate.getInfo();
}
public Format getFormat() {
return delegate.getFormat();
}
public String getCurrentSubname() {
return delegate.getCurrentSubname();
}
public void dispose() {
delegate.dispose();
}
public DecoratingGridCoverage2DReader(AbstractGridCoverage2DReader delegate) {
this.delegate = delegate;
this.crs = delegate.getCrs();
this.originalEnvelope = delegate.getOriginalEnvelope();
this.originalGridRange = delegate.getOriginalGridRange();
}
/**
* Adds a raster layer to the setup.
*
* <p>This method configures a raster layer with the name <code>qName.getLocalPart()</code>. A
* coverage store is created (if it doesn't already exist) with the same name. The workspace of
* the resulting store and layer is determined by <code>qName.getPrefix()</code>.
*
* <p>The <tt>filename</tt> parameter defines the raster file to be loaded from the classpath and
* copied into the data directory. The <tt>scope</tt> is used as the class from which to load the
* file from.
*
* <p>In the case of adding a zipped archive that contains multiple file the <tt>filename</tt>
* paramter should have a ".zip" extension and the <tt>extension</tt> parameter must define the
* extension of the main raster file. The parameter is not necessary and may be null if the
* <tt>filename</tt> does not refer to a zip file.
*
* <p>The <tt>props</tt> parameter is used to define custom properties for the layer. See the
* {@link LayerProperty} class for supported properties.
*
* @param qName The name of the raster layer.
* @param filename The name of the file containing the raster, to be loaded from the classpath.
* @param extension The file extension (without a ".") of the main raster file. This parameter my
* be <code>null</code> only if <tt>filename</tt> does not refer to a zip file.
* @param props Custom properties to assign to the created raster layer.
* @param scope The class from which to load the <tt>filename</tt> resource from.
*/
public void addRasterLayer(
QName qName,
String filename,
String extension,
Map<LayerProperty, Object> props,
Class scope,
Catalog catalog)
throws IOException {
String prefix = qName.getPrefix();
String name = qName.getLocalPart();
// setup the data
File dir = new File(data, name);
dir.mkdirs();
File file = new File(dir, filename);
catalog.getResourceLoader().copyFromClassPath(filename, file, scope);
String ext = FilenameUtils.getExtension(filename);
if ("zip".equalsIgnoreCase(ext)) {
// unpack the archive
IOUtils.decompress(file, dir);
// delete archive
file.delete();
if (extension == null) {
// zip with no extension, we just the directory as the file
file = dir;
} else {
// files may have been top level, or one directory level deep
file = new File(dir, FilenameUtils.getBaseName(filename) + "." + extension);
if (!file.exists()) {
File file2 = new File(new File(dir, dir.getName()), file.getName());
if (file2.exists()) {
file = file2;
}
}
}
if (!file.exists()) {
throw new FileNotFoundException(file.getPath());
}
}
// load the format/reader
AbstractGridFormat format = (AbstractGridFormat) GridFormatFinder.findFormat(file);
if (format == null) {
throw new RuntimeException("No format for " + file.getCanonicalPath());
}
AbstractGridCoverage2DReader reader = null;
try {
reader = (AbstractGridCoverage2DReader) format.getReader(file);
if (reader == null) {
throw new RuntimeException(
"No reader for " + file.getCanonicalPath() + " with format " + format.getName());
}
// configure workspace if it doesn;t already exist
if (catalog.getWorkspaceByName(prefix) == null) {
addWorkspace(prefix, qName.getNamespaceURI(), catalog);
}
// create the store
CoverageStoreInfo store = catalog.getCoverageStoreByName(prefix, name);
if (store == null) {
store = catalog.getFactory().createCoverageStore();
}
store.setName(name);
store.setWorkspace(catalog.getWorkspaceByName(prefix));
store.setEnabled(true);
store.setURL(DataUtilities.fileToURL(file).toString());
store.setType(format.getName());
if (store.getId() == null) {
catalog.add(store);
} else {
catalog.save(store);
}
// create the coverage
CatalogBuilder builder = new CatalogBuilder(catalog);
builder.setStore(store);
CoverageInfo coverage = null;
try {
coverage = builder.buildCoverage(reader, null);
// coverage read params
if (format instanceof ImageMosaicFormat) {
// make sure we work in immediate mode
coverage
.getParameters()
.put(AbstractGridFormat.USE_JAI_IMAGEREAD.getName().getCode(), Boolean.FALSE);
}
} catch (Exception e) {
throw new IOException(e);
}
coverage.setName(name);
coverage.setTitle(name);
coverage.setDescription(name);
coverage.setEnabled(true);
CoverageInfo cov = catalog.getCoverageByCoverageStore(store, name);
if (cov == null) {
catalog.add(coverage);
} else {
builder.updateCoverage(cov, coverage);
catalog.save(cov);
coverage = cov;
}
LayerInfo layer = catalog.getLayerByName(new NameImpl(qName));
if (layer == null) {
layer = catalog.getFactory().createLayer();
}
layer.setResource(coverage);
layer.setDefaultStyle(
catalog.getStyleByName(LayerProperty.STYLE.get(props, DEFAULT_RASTER_STYLE)));
layer.setType(LayerInfo.Type.RASTER);
layer.setEnabled(true);
if (layer.getId() == null) {
catalog.add(layer);
} else {
catalog.save(layer);
}
} finally {
if (reader != null) {
reader.dispose();
}
}
}
public GridCoverage2D read(GeneralParameterValue[] parameters)
throws IllegalArgumentException, IOException {
return delegate.read(parameters);
}
public void skip() {
delegate.skip();
}
public int getGridCoverageCount() {
return delegate.getGridCoverageCount();
}