private <R> R readResource(
DBBroker broker, Resource resource, DatabaseItemReader<DocumentImpl, R> reader)
throws XMLDBException, PermissionDeniedException {
DocumentImpl document = null;
try {
document = ((AbstractEXistResource) resource).openDocument(broker, Lock.READ_LOCK);
return reader.read(document);
} finally {
if (document != null) {
((AbstractEXistResource) resource).closeDocument(document, Lock.READ_LOCK);
}
}
}
private <R> R readCollection(
DBBroker broker,
XmldbURI collectionURI,
DatabaseItemReader<org.exist.collections.Collection, R> reader)
throws XMLDBException, PermissionDeniedException {
org.exist.collections.Collection coll = null;
try {
coll = broker.openCollection(collectionURI, Lock.READ_LOCK);
if (coll == null) {
throw new XMLDBException(
ErrorCodes.INVALID_COLLECTION, "Collection " + collectionURI.toString() + " not found");
}
return reader.read(coll);
} finally {
if (coll != null) {
coll.release(Lock.READ_LOCK);
}
}
}
