/** Called when the block is removed from the cache. */
private void freeImpl() {
if (_useCount.get() > 0) throw new IllegalStateException("freeImpl");
// save();
if (toDestroy()) {
byte[] buffer = _buffer;
_buffer = null;
if (buffer != null && _isFreeBuffer) {
_freeBuffers.free(buffer);
}
ReadWriteLock lock = _rwLock;
_rwLock = null;
if (lock != null) {
/*
if (lock.getReadLockCount() == 0
&& lock.getReadHoldCount() == 0
&& ! lock.isWriteLocked()) {
_freeLocks.free(lock);
}
*/
_freeLocks.free(lock);
}
}
}
void closeImpl() {
EntityManager em = null;
while ((em = _idleEntityManagerPool.allocate()) != null) {
em.close();
}
}
/** Creates a new ResponseAdapter. */
public static ToCharResponseAdapter create(HttpServletResponse response) {
ToCharResponseAdapter resAdapt = _freeList.allocate();
if (resAdapt == null) resAdapt = new ToCharResponseAdapter();
resAdapt.init(response);
return resAdapt;
}
private static byte[] allocateBuffer() {
byte[] buffer = _freeBuffers.allocate();
if (buffer == null) {
buffer = new byte[BlockStore.BLOCK_SIZE];
}
return buffer;
}
/** Returns a new query context. */
public static QueryContext allocate() {
QueryContext queryContext = _freeList.allocate();
if (queryContext == null) queryContext = new QueryContext();
queryContext.clearParameters();
queryContext._limit = -1;
queryContext._isNonLocking = false;
return queryContext;
}
private static ReadWriteLock allocateReadWriteLock() {
ReadWriteLock lock = _freeLocks.allocate();
if (lock == null) {
// #5624
lock = new ReentrantReadWriteLock();
// lock = new DatabaseLock("block");
}
return lock;
}
/** Creates a transienct EM for outside a transaction. */
private EntityManager createEntityManager() {
EntityManager em = _idleEntityManagerPool.allocate();
if (em == null) {
if (_emf == null) {
_emf = _persistenceUnit.getEntityManagerFactoryDelegate();
}
if (_emf == null)
throw new IllegalStateException(
L.l("{0} does not have a valid delegate.", _persistenceUnit));
em = _emf.createEntityManager(_persistenceUnit.getProperties());
}
return em;
}
private void freeEntityManager(EntityManager em) {
em.clear();
if (!_idleEntityManagerPool.free(em)) em.close();
}
public static void free(QueryContext cxt) {
_freeList.free(cxt);
}
public static void free(ToCharResponseAdapter resAdapt) {
resAdapt.free();
_freeList.free(resAdapt);
}
