WorkspaceManager wm = getWorkspaceManager(request);
CollectionAdapter adapter = wm.getCollectionAdapter(request);
Transactional transaction = adapter instanceof Transactional ? (Transactional) adapter
: null;
ResponseContext response = null;
try {
transactionStart(transaction, request);
response = processor.process(request, wm, adapter);
response = response != null ? response : processExtensionRequest(
request, adapter);