/**
* The object will contain metadata properties, including object identifier {@code _id}, and
* object version {@code _rev} to enable optimistic concurrency supported by OrientDB and OpenIDM.
*
* @param request the identifier of the object to retrieve from the object set.
* @throws NotFoundException if the specified object could not be found.
* @throws ForbiddenException if access to the object is forbidden.
* @throws BadRequestException if the passed identifier is invalid
* @return the requested object.
*/
@Override
public ResourceResponse read(ReadRequest request) throws ResourceException {
if (request.getResourcePathObject().size() < 2) {
throw new NotFoundException(
"The object identifier did not include sufficient information to determine the object type and identifier of the object to read: "
+ request.getResourcePath());
}
final String type = request.getResourcePathObject().parent().toString();
final String localId = request.getResourcePathObject().leaf();
ResourceResponse result = null;
ODatabaseDocumentTx db = getConnection();
try {
ODocument doc = predefinedQueries.getByID(localId, type, db);
if (doc == null) {
throw new NotFoundException("Object " + localId + " not found in " + type);
}
result = DocumentUtil.toResource(doc);
logger.trace("Completed get for id: {} result: {}", request.getResourcePath(), result);
return result;
} finally {
if (db != null) {
db.close();
}
}
}
/**
* Deletes the specified object from the object set.
*
* <p>{@inheritDoc}
*
* @throws NotFoundException if the specified object could not be found.
* @throws ForbiddenException if access to the object is forbidden.
* @throws ConflictException if version is required but is {@code null}.
* @throws PreconditionFailedException if version did not match the existing object in the set.
*/
@Override
public ResourceResponse delete(DeleteRequest request) throws ResourceException {
if (request.getResourcePathObject().size() < 2) {
throw new NotFoundException(
"The object identifier did not include sufficient information to determine the object type and identifier of the object to update: "
+ request.getResourcePath());
}
if (request.getRevision() == null || "".equals(request.getRevision())) {
throw new ConflictException(
"Object passed into delete does not have revision it expects set.");
}
final String type = request.getResourcePathObject().parent().toString();
final String localId = request.getResourcePathObject().leaf();
int ver =
DocumentUtil.parseVersion(
request.getRevision()); // This throws ConflictException if parse fails
ODatabaseDocumentTx db = getConnection();
try {
ODocument existingDoc = predefinedQueries.getByID(localId, type, db);
if (existingDoc == null) {
throw new NotFoundException(
"Object does not exist for delete on: " + request.getResourcePath());
}
db.delete(existingDoc.getIdentity(), new OSimpleVersion(ver));
logger.debug("delete for id succeeded: {} revision: {}", localId, request.getRevision());
return DocumentUtil.toResource(existingDoc);
} catch (ODatabaseException ex) {
// Without transaction the concurrent modification exception gets nested instead
if (isCauseConcurrentModificationException(ex, 10)) {
throw new PreconditionFailedException(
"Delete rejected as current Object revision is different than expected by caller, the object has changed since retrieval. "
+ ex.getMessage(),
ex);
} else {
throw ex;
}
} catch (OConcurrentModificationException ex) {
throw new PreconditionFailedException(
"Delete rejected as current Object revision is different than expected by caller, the object has changed since retrieval."
+ ex.getMessage(),
ex);
} catch (RuntimeException e) {
throw e;
} finally {
if (db != null) {
db.close();
}
}
}
