@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()));
}
@DescribeResult(name = "layerName", description = "Name of the new featuretype, with workspace")
public String execute(
@DescribeParameter(name = "features", min = 0, description = "Input feature collection")
SimpleFeatureCollection features,
@DescribeParameter(name = "coverage", min = 0, description = "Input raster")
GridCoverage2D coverage,
@DescribeParameter(
name = "workspace",
min = 0,
description = "Target workspace (default is the system default)")
String workspace,
@DescribeParameter(
name = "store",
min = 0,
description = "Target store (default is the workspace default)")
String store,
@DescribeParameter(
name = "name",
min = 0,
description =
"Name of the new featuretype/coverage (default is the name of the features in the collection)")
String name,
@DescribeParameter(
name = "srs",
min = 0,
description =
"Target coordinate reference system (default is based on source when possible)")
CoordinateReferenceSystem srs,
@DescribeParameter(
name = "srsHandling",
min = 0,
description =
"Desired SRS handling (default is FORCE_DECLARED, others are REPROJECT_TO_DECLARED or NONE)")
ProjectionPolicy srsHandling,
@DescribeParameter(
name = "styleName",
min = 0,
description =
"Name of the style to be associated with the layer (default is a standard geometry-specific style)")
String styleName)
throws ProcessException {
// first off, decide what is the target store
WorkspaceInfo ws;
if (workspace != null) {
ws = catalog.getWorkspaceByName(workspace);
if (ws == null) {
throw new ProcessException("Could not find workspace " + workspace);
}
} else {
ws = catalog.getDefaultWorkspace();
if (ws == null) {
throw new ProcessException("The catalog is empty, could not find a default workspace");
}
}
// create a builder to help build catalog objects
CatalogBuilder cb = new CatalogBuilder(catalog);
cb.setWorkspace(ws);
// ok, find the target store
StoreInfo storeInfo = null;
boolean add = false;
if (store != null) {
if (features != null) {
storeInfo = catalog.getDataStoreByName(ws.getName(), store);
} else if (coverage != null) {
storeInfo = catalog.getCoverageStoreByName(ws.getName(), store);
}
if (storeInfo == null) {
throw new ProcessException("Could not find store " + store + " in workspace " + workspace);
// TODO: support store creation
}
} else if (features != null) {
storeInfo = catalog.getDefaultDataStore(ws);
if (storeInfo == null) {
throw new ProcessException("Could not find a default store in workspace " + ws.getName());
}
} else if (coverage != null) {
// create a new coverage store
LOGGER.info(
"Auto-configuring coverage store: "
+ (name != null ? name : coverage.getName().toString()));
storeInfo = cb.buildCoverageStore((name != null ? name : coverage.getName().toString()));
add = true;
store = (name != null ? name : coverage.getName().toString());
if (storeInfo == null) {
throw new ProcessException("Could not find a default store in workspace " + ws.getName());
}
}
// check the target style if any
StyleInfo targetStyle = null;
if (styleName != null) {
targetStyle = catalog.getStyleByName(styleName);
if (targetStyle == null) {
throw new ProcessException("Could not find style " + styleName);
}
}
if (features != null) {
// check if the target layer and the target feature type are not
// already there (this is a half-assed attempt as we don't have
// an API telling us how the feature type name will be changed
// by DataStore.createSchema(...), but better than fully importing
// the data into the target store to find out we cannot create the layer...)
String tentativeTargetName = null;
if (name != null) {
tentativeTargetName = ws.getName() + ":" + name;
} else {
tentativeTargetName = ws.getName() + ":" + features.getSchema().getTypeName();
}
if (catalog.getLayer(tentativeTargetName) != null) {
throw new ProcessException("Target layer " + tentativeTargetName + " already exists");
}
// check the target crs
String targetSRSCode = null;
if (srs != null) {
try {
Integer code = CRS.lookupEpsgCode(srs, true);
if (code == null) {
throw new WPSException("Could not find a EPSG code for " + srs);
}
targetSRSCode = "EPSG:" + code;
} catch (Exception e) {
throw new ProcessException("Could not lookup the EPSG code for the provided srs", e);
}
} else {
// check we can extract a code from the original data
GeometryDescriptor gd = features.getSchema().getGeometryDescriptor();
if (gd == null) {
// data is geometryless, we need a fake SRS
targetSRSCode = "EPSG:4326";
srsHandling = ProjectionPolicy.FORCE_DECLARED;
} else {
CoordinateReferenceSystem nativeCrs = gd.getCoordinateReferenceSystem();
if (nativeCrs == null) {
throw new ProcessException(
"The original data has no native CRS, " + "you need to specify the srs parameter");
} else {
try {
Integer code = CRS.lookupEpsgCode(nativeCrs, true);
if (code == null) {
throw new ProcessException(
"Could not find an EPSG code for data "
+ "native spatial reference system: "
+ nativeCrs);
} else {
targetSRSCode = "EPSG:" + code;
}
} catch (Exception e) {
throw new ProcessException(
"Failed to loookup an official EPSG code for "
+ "the source data native "
+ "spatial reference system",
e);
}
}
}
}
// import the data into the target store
SimpleFeatureType targetType;
try {
targetType = importDataIntoStore(features, name, (DataStoreInfo) storeInfo);
} catch (IOException e) {
throw new ProcessException("Failed to import data into the target store", e);
}
// now import the newly created layer into GeoServer
try {
cb.setStore(storeInfo);
// build the typeInfo and set CRS if necessary
FeatureTypeInfo typeInfo = cb.buildFeatureType(targetType.getName());
if (targetSRSCode != null) {
typeInfo.setSRS(targetSRSCode);
}
if (srsHandling != null) {
typeInfo.setProjectionPolicy(srsHandling);
}
// compute the bounds
cb.setupBounds(typeInfo);
// build the layer and set a style
LayerInfo layerInfo = cb.buildLayer(typeInfo);
if (targetStyle != null) {
layerInfo.setDefaultStyle(targetStyle);
}
catalog.add(typeInfo);
catalog.add(layerInfo);
return layerInfo.prefixedName();
} catch (Exception e) {
throw new ProcessException("Failed to complete the import inside the GeoServer catalog", e);
}
} else if (coverage != null) {
try {
final File directory =
catalog.getResourceLoader().findOrCreateDirectory("data", workspace, store);
final File file = File.createTempFile(store, ".tif", directory);
((CoverageStoreInfo) storeInfo).setURL(file.toURL().toExternalForm());
((CoverageStoreInfo) storeInfo).setType("GeoTIFF");
// check the target crs
CoordinateReferenceSystem cvCrs = coverage.getCoordinateReferenceSystem();
String targetSRSCode = null;
if (srs != null) {
try {
Integer code = CRS.lookupEpsgCode(srs, true);
if (code == null) {
throw new WPSException("Could not find a EPSG code for " + srs);
}
targetSRSCode = "EPSG:" + code;
} catch (Exception e) {
throw new ProcessException("Could not lookup the EPSG code for the provided srs", e);
}
} else {
// check we can extract a code from the original data
if (cvCrs == null) {
// data is geometryless, we need a fake SRS
targetSRSCode = "EPSG:4326";
srsHandling = ProjectionPolicy.FORCE_DECLARED;
srs = DefaultGeographicCRS.WGS84;
} else {
CoordinateReferenceSystem nativeCrs = cvCrs;
if (nativeCrs == null) {
throw new ProcessException(
"The original data has no native CRS, "
+ "you need to specify the srs parameter");
} else {
try {
Integer code = CRS.lookupEpsgCode(nativeCrs, true);
if (code == null) {
throw new ProcessException(
"Could not find an EPSG code for data "
+ "native spatial reference system: "
+ nativeCrs);
} else {
targetSRSCode = "EPSG:" + code;
srs = CRS.decode(targetSRSCode, true);
}
} catch (Exception e) {
throw new ProcessException(
"Failed to loookup an official EPSG code for "
+ "the source data native "
+ "spatial reference system",
e);
}
}
}
}
MathTransform tx = CRS.findMathTransform(cvCrs, srs);
if (!tx.isIdentity() || !CRS.equalsIgnoreMetadata(cvCrs, srs)) {
coverage =
WCSUtils.resample(
coverage,
cvCrs,
srs,
null,
Interpolation.getInstance(Interpolation.INTERP_NEAREST));
}
GeoTiffWriter writer = new GeoTiffWriter(file);
// setting the write parameters for this geotiff
final ParameterValueGroup params = new GeoTiffFormat().getWriteParameters();
params
.parameter(AbstractGridFormat.GEOTOOLS_WRITE_PARAMS.getName().toString())
.setValue(DEFAULT_WRITE_PARAMS);
final GeneralParameterValue[] wps =
(GeneralParameterValue[]) params.values().toArray(new GeneralParameterValue[1]);
try {
writer.write(coverage, wps);
} finally {
try {
writer.dispose();
} catch (Exception e) {
// we tried, no need to fuss around this one
}
}
// add or update the datastore info
if (add) {
catalog.add((CoverageStoreInfo) storeInfo);
} else {
catalog.save((CoverageStoreInfo) storeInfo);
}
cb.setStore((CoverageStoreInfo) storeInfo);
AbstractGridCoverage2DReader reader = new GeoTiffReader(file);
if (reader == null) {
throw new ProcessException("Could not aquire reader for coverage.");
}
// coverage read params
final Map customParameters = new HashMap();
/*String useJAIImageReadParam = "USE_JAI_IMAGEREAD";
if (useJAIImageReadParam != null) {
customParameters.put(AbstractGridFormat.USE_JAI_IMAGEREAD.getName().toString(), Boolean.valueOf(useJAIImageReadParam));
}*/
CoverageInfo cinfo = cb.buildCoverage(reader, customParameters);
// check if the name of the coverage was specified
if (name != null) {
cinfo.setName(name);
}
if (!add) {
// update the existing
CoverageInfo existing =
catalog.getCoverageByCoverageStore(
(CoverageStoreInfo) storeInfo,
name != null ? name : coverage.getName().toString());
if (existing == null) {
// grab the first if there is only one
List<CoverageInfo> coverages =
catalog.getCoveragesByCoverageStore((CoverageStoreInfo) storeInfo);
if (coverages.size() == 1) {
existing = coverages.get(0);
}
if (coverages.size() == 0) {
// no coverages yet configured, change add flag and continue on
add = true;
} else {
// multiple coverages, and one to configure not specified
throw new ProcessException("Unable to determine coverage to configure.");
}
}
if (existing != null) {
cb.updateCoverage(existing, cinfo);
catalog.save(existing);
cinfo = existing;
}
}
// do some post configuration, if srs is not known or unset, transform to 4326
if ("UNKNOWN".equals(cinfo.getSRS())) {
// CoordinateReferenceSystem sourceCRS =
// cinfo.getBoundingBox().getCoordinateReferenceSystem();
// CoordinateReferenceSystem targetCRS = CRS.decode("EPSG:4326", true);
// ReferencedEnvelope re = cinfo.getBoundingBox().transform(targetCRS, true);
cinfo.setSRS("EPSG:4326");
// cinfo.setCRS( targetCRS );
// cinfo.setBoundingBox( re );
}
// add/save
if (add) {
catalog.add(cinfo);
LayerInfo layerInfo = cb.buildLayer(cinfo);
if (styleName != null && targetStyle != null) {
layerInfo.setDefaultStyle(targetStyle);
}
// JD: commenting this out, these sorts of edits should be handled
// with a second PUT request on the created coverage
/*
String styleName = form.getFirstValue("style");
if ( styleName != null ) {
StyleInfo style = catalog.getStyleByName( styleName );
if ( style != null ) {
layerInfo.setDefaultStyle( style );
if ( !layerInfo.getStyles().contains( style ) ) {
layerInfo.getStyles().add( style );
}
}
else {
LOGGER.warning( "Client specified style '" + styleName + "'but no such style exists.");
}
}
String path = form.getFirstValue( "path");
if ( path != null ) {
layerInfo.setPath( path );
}
*/
boolean valid = true;
try {
if (!catalog.validate(layerInfo, true).isEmpty()) {
valid = false;
}
} catch (Exception e) {
valid = false;
}
layerInfo.setEnabled(valid);
catalog.add(layerInfo);
return layerInfo.prefixedName();
} else {
catalog.save(cinfo);
LayerInfo layerInfo = catalog.getLayerByName(cinfo.getName());
if (styleName != null && targetStyle != null) {
layerInfo.setDefaultStyle(targetStyle);
}
return layerInfo.prefixedName();
}
} catch (MalformedURLException e) {
throw new ProcessException("URL Error", e);
} catch (IOException e) {
throw new ProcessException("I/O Exception", e);
} catch (Exception e) {
e.printStackTrace();
throw new ProcessException("Exception", e);
}
}
return null;
}