@Override
public void validate(IValidatable<String> validatable) {
String vcName = validatable.getValue();
final CoverageStoreInfo store = getCatalog().getStore(storeId, CoverageStoreInfo.class);
List<CoverageInfo> coverages = getCatalog().getCoveragesByCoverageStore(store);
for (CoverageInfo curr : coverages) {
CoverageView currvc =
curr.getMetadata().get(CoverageView.COVERAGE_VIEW, CoverageView.class);
if (currvc != null) {
if (coverageInfoId == null || !coverageInfoId.equals(curr.getId())) {
if (currvc.getName().equals(vcName) && newCoverage) {
Map<String, Object> map = new HashMap<>();
map.put("name", vcName);
map.put("coverageName", curr.getName());
IValidationError err =
new ValidationError("duplicateCoverageViewName")
.addKey("duplicateCoverageViewName")
.setVariables(map);
validatable.error(err);
return;
}
}
}
}
}
/** @param cv */
private void handleCoverageOfferingBrief(CoverageInfo cv) {
if (cv.isEnabled()) {
start("wcs:CoverageOfferingBrief");
String tmp;
for (MetadataLinkInfo mdl : cv.getMetadataLinks()) handleMetadataLink(mdl);
tmp = cv.getDescription();
if ((tmp != null) && (tmp != "")) {
element("wcs:description", tmp);
}
tmp = cv.getPrefixedName();
if ((tmp != null) && (tmp != "")) {
element("wcs:name", tmp);
}
tmp = cv.getTitle();
if ((tmp != null) && (tmp != "")) {
element("wcs:label", tmp);
}
CoverageStoreInfo csinfo = cv.getStore();
if (csinfo == null) {
throw new WcsException(
"Unable to acquire coverage store resource for coverage: " + cv.getName());
}
AbstractGridCoverage2DReader reader = null;
try {
reader =
(AbstractGridCoverage2DReader)
catalog
.getResourcePool()
.getGridCoverageReader(csinfo, GeoTools.getDefaultHints());
} catch (IOException e) {
LOGGER.severe(
"Unable to acquire a reader for this coverage with format: "
+ csinfo.getFormat().getName());
}
if (reader == null)
throw new WcsException(
"Unable to acquire a reader for this coverage with format: "
+ csinfo.getFormat().getName());
DimensionInfo timeInfo = cv.getMetadata().get(ResourceInfo.TIME, DimensionInfo.class);
ReaderDimensionsAccessor dimensions = new ReaderDimensionsAccessor(reader);
handleEnvelope(cv.getLatLonBoundingBox(), timeInfo, dimensions);
handleKeywords(cv.getKeywords());
end("wcs:CoverageOfferingBrief");
}
}
/**
* Test that changing a datastore's workspace updates the datastore's "namespace" parameter as
* well as the namespace of its previously configured resources
*/
public void testWorkspaceSyncsUpWithNamespace() {
final Catalog catalog = getCatalog();
final FormTester formTester = tester.newFormTester("rasterStoreForm");
final String wsDropdownPath = "rasterStoreForm:workspacePanel:border:paramValue";
tester.assertModelValue(wsDropdownPath, catalog.getWorkspaceByName(MockData.WCS_PREFIX));
// select the fifth item in the drop down, which is the cdf workspace
formTester.select("workspacePanel:border:paramValue", 2);
// weird on this test I need to both call form.submit() and also simulate clicking on the
// ajax "save" link for the model to be updated. On a running geoserver instance it works ok
// though
formTester.submit();
final boolean isAjax = true;
tester.clickLink("rasterStoreForm:save", isAjax);
// did the save finish normally?
tester.assertRenderedPage(StorePage.class);
CoverageStoreInfo store = catalog.getCoverageStore(coverageStore.getId());
WorkspaceInfo workspace = store.getWorkspace();
assertFalse(MockData.WCS_PREFIX.equals(workspace.getName()));
// was the namespace for the datastore resources updated?
List<CoverageInfo> resourcesByStore;
resourcesByStore = catalog.getResourcesByStore(store, CoverageInfo.class);
assertTrue(resourcesByStore.size() > 0);
for (CoverageInfo cv : resourcesByStore) {
assertEquals(
"Namespace for " + cv.getName() + " was not updated",
workspace.getName(),
cv.getNamespace().getPrefix());
}
}
/** Reads the catalog from disk. */
Catalog readCatalog(XStreamPersister xp) throws Exception {
CatalogImpl catalog = new CatalogImpl();
catalog.setResourceLoader(resourceLoader);
xp.setCatalog(catalog);
xp.setUnwrapNulls(false);
CatalogFactory factory = catalog.getFactory();
// global styles
loadStyles(resourceLoader.find("styles"), catalog, xp);
// workspaces, stores, and resources
File workspaces = resourceLoader.find("workspaces");
if (workspaces != null) {
// do a first quick scan over all workspaces, setting the default
File dws = new File(workspaces, "default.xml");
WorkspaceInfo defaultWorkspace = null;
if (dws.exists()) {
try {
defaultWorkspace = depersist(xp, dws, WorkspaceInfo.class);
LOGGER.info("Loaded default workspace " + defaultWorkspace.getName());
} catch (Exception e) {
LOGGER.log(Level.WARNING, "Failed to load default workspace", e);
}
} else {
LOGGER.warning("No default workspace was found.");
}
for (File wsd : list(workspaces, DirectoryFileFilter.INSTANCE)) {
File f = new File(wsd, "workspace.xml");
if (!f.exists()) {
continue;
}
WorkspaceInfo ws = null;
try {
ws = depersist(xp, f, WorkspaceInfo.class);
catalog.add(ws);
} catch (Exception e) {
LOGGER.log(Level.WARNING, "Failed to load workspace '" + wsd.getName() + "'", e);
continue;
}
LOGGER.info("Loaded workspace '" + ws.getName() + "'");
// load the namespace
File nsf = new File(wsd, "namespace.xml");
NamespaceInfo ns = null;
if (nsf.exists()) {
try {
ns = depersist(xp, nsf, NamespaceInfo.class);
catalog.add(ns);
} catch (Exception e) {
LOGGER.log(Level.WARNING, "Failed to load namespace for '" + wsd.getName() + "'", e);
}
}
// set the default workspace, this value might be null in the case of coming from a
// 2.0.0 data directory. See http://jira.codehaus.org/browse/GEOS-3440
if (defaultWorkspace != null) {
if (ws.getName().equals(defaultWorkspace.getName())) {
catalog.setDefaultWorkspace(ws);
if (ns != null) {
catalog.setDefaultNamespace(ns);
}
}
} else {
// create the default.xml file
defaultWorkspace = catalog.getDefaultWorkspace();
if (defaultWorkspace != null) {
try {
persist(xp, defaultWorkspace, dws);
} catch (Exception e) {
LOGGER.log(
Level.WARNING, "Failed to persist default workspace '" + wsd.getName() + "'", e);
}
}
}
// load the styles for the workspace
File styles = resourceLoader.find(wsd, "styles");
if (styles != null) {
loadStyles(styles, catalog, xp);
}
}
for (File wsd : list(workspaces, DirectoryFileFilter.INSTANCE)) {
// load the stores for this workspace
for (File sd : list(wsd, DirectoryFileFilter.INSTANCE)) {
File f = new File(sd, "datastore.xml");
if (f.exists()) {
// load as a datastore
DataStoreInfo ds = null;
try {
ds = depersist(xp, f, DataStoreInfo.class);
catalog.add(ds);
LOGGER.info("Loaded data store '" + ds.getName() + "'");
if (ds.isEnabled()) {
// connect to the datastore to determine if we should disable it
try {
ds.getDataStore(null);
} catch (Throwable t) {
LOGGER.warning("Error connecting to '" + ds.getName() + "'. Disabling.");
LOGGER.log(Level.INFO, "", t);
ds.setError(t);
ds.setEnabled(false);
}
}
} catch (Exception e) {
LOGGER.log(Level.WARNING, "Failed to load data store '" + sd.getName() + "'", e);
continue;
}
// load feature types
for (File ftd : list(sd, DirectoryFileFilter.INSTANCE)) {
f = new File(ftd, "featuretype.xml");
if (f.exists()) {
FeatureTypeInfo ft = null;
try {
ft = depersist(xp, f, FeatureTypeInfo.class);
} catch (Exception e) {
LOGGER.log(
Level.WARNING, "Failed to load feature type '" + ftd.getName() + "'", e);
continue;
}
catalog.add(ft);
LOGGER.info("Loaded feature type '" + ds.getName() + "'");
f = new File(ftd, "layer.xml");
if (f.exists()) {
try {
LayerInfo l = depersist(xp, f, LayerInfo.class);
catalog.add(l);
LOGGER.info("Loaded layer '" + l.getName() + "'");
} catch (Exception e) {
LOGGER.log(
Level.WARNING,
"Failed to load layer for feature type '" + ft.getName() + "'",
e);
}
}
} else {
LOGGER.warning("Ignoring feature type directory " + ftd.getAbsolutePath());
}
}
} else {
// look for a coverage store
f = new File(sd, "coveragestore.xml");
if (f.exists()) {
CoverageStoreInfo cs = null;
try {
cs = depersist(xp, f, CoverageStoreInfo.class);
catalog.add(cs);
LOGGER.info("Loaded coverage store '" + cs.getName() + "'");
} catch (Exception e) {
LOGGER.log(
Level.WARNING, "Failed to load coverage store '" + sd.getName() + "'", e);
continue;
}
// load coverages
for (File cd : list(sd, DirectoryFileFilter.INSTANCE)) {
f = new File(cd, "coverage.xml");
if (f.exists()) {
CoverageInfo c = null;
try {
c = depersist(xp, f, CoverageInfo.class);
catalog.add(c);
LOGGER.info("Loaded coverage '" + cs.getName() + "'");
} catch (Exception e) {
LOGGER.log(Level.WARNING, "Failed to load coverage '" + cd.getName() + "'", e);
continue;
}
f = new File(cd, "layer.xml");
if (f.exists()) {
try {
LayerInfo l = depersist(xp, f, LayerInfo.class);
catalog.add(l);
LOGGER.info("Loaded layer '" + l.getName() + "'");
} catch (Exception e) {
LOGGER.log(
Level.WARNING, "Failed to load layer coverage '" + c.getName() + "'", e);
}
}
} else {
LOGGER.warning("Ignoring coverage directory " + cd.getAbsolutePath());
}
}
} else {
f = new File(sd, "wmsstore.xml");
if (f.exists()) {
WMSStoreInfo wms = null;
try {
wms = depersist(xp, f, WMSStoreInfo.class);
catalog.add(wms);
LOGGER.info("Loaded wmsstore '" + wms.getName() + "'");
} catch (Exception e) {
LOGGER.log(Level.WARNING, "Failed to load wms store '" + sd.getName() + "'", e);
continue;
}
// load wms layers
for (File cd : list(sd, DirectoryFileFilter.INSTANCE)) {
f = new File(cd, "wmslayer.xml");
if (f.exists()) {
WMSLayerInfo wl = null;
try {
wl = depersist(xp, f, WMSLayerInfo.class);
catalog.add(wl);
LOGGER.info("Loaded wms layer'" + wl.getName() + "'");
} catch (Exception e) {
LOGGER.log(
Level.WARNING, "Failed to load wms layer '" + cd.getName() + "'", e);
continue;
}
f = new File(cd, "layer.xml");
if (f.exists()) {
try {
LayerInfo l = depersist(xp, f, LayerInfo.class);
catalog.add(l);
LOGGER.info("Loaded layer '" + l.getName() + "'");
} catch (Exception e) {
LOGGER.log(
Level.WARNING,
"Failed to load cascaded wms layer '" + wl.getName() + "'",
e);
}
}
} else {
LOGGER.warning("Ignoring coverage directory " + cd.getAbsolutePath());
}
}
} else if (!isConfigDirectory(sd)) {
LOGGER.warning("Ignoring store directory '" + sd.getName() + "'");
continue;
}
}
}
}
// load hte layer groups for this workspace
File layergroups = resourceLoader.find(wsd, "layergroups");
if (layergroups != null) {
loadLayerGroups(layergroups, catalog, xp);
}
}
} else {
LOGGER.warning("No 'workspaces' directory found, unable to load any stores.");
}
// namespaces
// layergroups
File layergroups = resourceLoader.find("layergroups");
if (layergroups != null) {
loadLayerGroups(layergroups, catalog, xp);
}
xp.setUnwrapNulls(true);
catalog.resolve();
return catalog;
}
@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;
}