/**
* Notifies the caller the requested operation is not supported, using a plain {@link
* UnsupportedOperationException} in case we have to conceal the fact the data is actually
* writable, using an Spring security exception otherwise to force an authentication from the user
*/
protected RuntimeException unsupportedOperation() {
String typeName = getSchema().getName().getLocalPart();
if (policy.response == Response.CHALLENGE) {
return SecureCatalogImpl.unauthorizedAccess(typeName);
} else {
return new UnsupportedOperationException(typeName + " is read only");
}
}
@Override
public DataAccess<? extends FeatureType, ? extends Feature> getDataStore(
ProgressListener listener) throws IOException {
final DataAccess<? extends FeatureType, ? extends Feature> ds = super.getDataStore(listener);
if (ds == null) return null;
else if (policy.level == AccessLevel.METADATA)
throw SecureCatalogImpl.unauthorizedAccess(this.getName());
else
return (DataAccess<? extends FeatureType, ? extends Feature>)
SecuredObjects.secure(ds, policy);
}
public List<FeatureId> addFeatures(FeatureCollection<T, F> collection) throws IOException {
Query writeQuery = getWriteQuery(policy);
if (writeQuery.getFilter() == Filter.EXCLUDE
|| writeQuery.getPropertyNames() == Query.NO_NAMES) {
throw unsupportedOperation();
} else if (writeQuery == Query.ALL) {
// make sure it behaves like native when no write limits are imposed (even if this
// case makes no sense, we should not wrap at all)
return storeDelegate.addFeatures(collection);
} else {
// check if any of the inserted features does not pass the write filters
if (writeQuery.getFilter() != null && writeQuery.getFilter() != Filter.INCLUDE) {
final FilteringFeatureCollection<T, F> filtered =
new FilteringFeatureCollection<T, F>(collection, writeQuery.getFilter());
if (filtered.size() < collection.size()) {
String typeName = getSchema().getName().getLocalPart();
if (policy.response == Response.CHALLENGE) {
throw SecureCatalogImpl.unauthorizedAccess(typeName);
} else {
throw new UnsupportedOperationException(
"At least one of the features inserted does not satisfy your write restrictions");
}
}
}
// deal with writable properties
if (writeQuery.getPropertyNames() == Query.ALL_NAMES) {
return storeDelegate.addFeatures(collection);
} else {
if (collection.getSchema() instanceof SimpleFeatureType
&& storeDelegate instanceof SimpleFeatureStore) {
// see if the user specified the value of any attribute she cannot write
final SimpleFeatureCollection simpleCollection = (SimpleFeatureCollection) collection;
// wrap it with a collection that will check if any non writable attribute has
// been given a value
List<String> writableAttributes = Arrays.asList(writeQuery.getPropertyNames());
CheckAttributesFeatureCollection checker =
new CheckAttributesFeatureCollection(
simpleCollection, writableAttributes, policy.getResponse());
return ((SimpleFeatureStore) storeDelegate).addFeatures(checker);
} else {
// TODO: add retyping to shave off attributes we cannot write
LOGGER.log(
Level.SEVERE,
"Unfinished implementation, we need to shave off "
+ "the attributes one cannot write off complex features. "
+ "However at this time there is no writable complex feature!");
return storeDelegate.addFeatures(collection);
}
}
}
}
public void modifyFeatures(Name[] names, Object[] values, Filter filter) throws IOException {
// are we limiting anything?
Query writeQuery = getWriteQuery(policy);
if (writeQuery == Query.ALL) {
storeDelegate.modifyFeatures(names, values, filter);
} else if (writeQuery.getFilter() == Filter.EXCLUDE
|| writeQuery.getPropertyNames() == Query.NO_NAMES) {
throw unsupportedOperation();
}
// get the mixed filter
final Query local = new Query(null, filter);
Query mixed = mixQueries(local, writeQuery);
if (writeQuery.getPropertyNames() == Query.ALL_NAMES) {
// it was just a matter of filtering.
storeDelegate.modifyFeatures(names, values, mixed.getFilter());
} else {
// get the writable attribute set
Set<String> queryNames = new HashSet<String>(Arrays.asList(writeQuery.getPropertyNames()));
// check the update fields
for (int i = 0; i < names.length; i++) {
final String localName = names[i].getLocalPart();
if (queryNames.contains(localName)) {
String typeName = getSchema().getName().getLocalPart();
if (policy.getResponse() == Response.CHALLENGE) {
throw SecureCatalogImpl.unauthorizedAccess(typeName);
} else {
throw new UnsupportedOperationException(
"Trying to write on the write protected attribute " + names[i]);
}
}
}
storeDelegate.modifyFeatures(names, values, mixed.getFilter());
}
}