void doDelete(final HttpServletRequest req, final HttpServletResponse resp) {
try {
// Parse out the required API versions.
final AcceptAPIVersion acceptVersion = parseAcceptAPIVersion(req);
// Prepare response.
prepareResponse(req, resp);
// Validate request.
preprocessRequest(req);
rejectIfNoneMatch(req);
final Map<String, String[]> parameters = req.getParameterMap();
final DeleteRequest request =
Requests.newDeleteRequest(getResourceName(req)).setRevision(getIfMatch(req));
for (final Map.Entry<String, String[]> p : parameters.entrySet()) {
final String name = p.getKey();
final String[] values = p.getValue();
if (parseCommonParameter(name, values, request)) {
continue;
} else {
request.setAdditionalParameter(name, asSingleValue(name, values));
}
}
doRequest(req, resp, acceptVersion, request);
} catch (final Exception e) {
fail(req, resp, e);
}
}
/**
* 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();
}
}
}
/**
* TODO: Description.
*
* @throws SynchronizationException TODO.
*/
void delete() throws SynchronizationException {
if (_id != null) { // forgiving delete
try {
DeleteRequest r = Requests.newDeleteRequest(linkId(_id));
r.setRevision(_rev);
mapping
.getService()
.getConnectionFactory()
.getConnection()
.delete(mapping.getService().getServerContext(), r);
} catch (ResourceException ose) {
LOGGER.warn("Failed to delete link", ose);
throw new SynchronizationException(ose);
}
clear();
}
}
/**
* Removes the <code>Dictionary</code> for the given <code>pid</code>. If such a dictionary does
* not exist, this method has no effect.
*
* @param pid The identifier of the dictionary to delet.
* @throws IOException If an error occurrs deleting the dictionary. This exception must not be
* thrown if no dictionary with the given identifier exists.
*/
public void delete(String pid) throws IOException {
logger.debug("delete call for {}", pid);
Object removed = tempStore.remove(pid);
if (removed != null) {
logger.debug("Deleted {} from temporary store", pid);
}
try {
if (isReady(0) && requireRepository) {
String id = pidToId(pid);
boolean retry;
String rev = null;
do {
retry = false;
try {
ReadRequest readRequest = Requests.newReadRequest(id);
Map<String, Object> existing = repo.read(readRequest).getContent().asMap();
if (existing != null) {
rev = (String) existing.get("_rev");
DeleteRequest r = Requests.newDeleteRequest(id);
r.setRevision(rev);
repo.delete(r);
logger.debug("Deleted {}", pid);
}
} catch (PreconditionFailedException ex) {
logger.debug("Concurrent change during delete, retrying {} {}", pid, rev);
retry = true;
} catch (NotFoundException ex) {
// If it doesn't exists (anymore) that's fine
}
} while (retry);
}
} catch (ResourceException ex) {
throw new IOException(
"Failed to delete configuration + " + pid + " in repository: " + ex.getMessage(), ex);
}
}
