@Override public DefaultRepositoryItemUidLock createUidAttributeLock( final RepositoryItemUid uid ) { final String key = new String( "attribute:" + uid.getKey() ); return doCreateUidLockForKey( key ); }
@Override public DefaultRepositoryItemUidLock createUidLock( final RepositoryItemUid uid ) { final String key = new String( uid.getKey() ); return doCreateUidLockForKey( key ); }
/** * Dereferences the passed in link completely (following link-to-links too) as long as non-link item is found as * target. This method will detect cycles, and will fail if such link constellation is found. If any target during * dereference is not found, the usual {@link ItemNotFoundException} will be thrown (by the method used to * dereference). */ protected StorageItem dereferenceLink(final StorageLinkItem link) throws Exception { final List<String> hops = Lists.newArrayList(); StorageLinkItem currentLink = link; while (true) { final String hop = currentLink.getRepositoryItemUid().getKey(); if (!hops.contains(hop)) { hops.add(hop); final StorageItem item = repositoryRouter.dereferenceLink(currentLink); if (!(item instanceof StorageLinkItem)) { return item; } else { currentLink = (StorageLinkItem) item; } } else { // cycle detected, current link already processed throw new ItemNotFoundException(ItemNotFoundException.reasonFor(link.getResourceStoreRequest(), link .getRepositoryItemUid().getRepository(), "Link item %s introduced a cycle while referencing it, cycle is %s", link.getRepositoryItemUid(), hops)); } } }