--- /dev/null
+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.md.sal.binding.impl;
+
+import com.google.common.base.Preconditions;
+import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.Futures;
+import org.opendaylight.controller.md.sal.binding.api.BindingTransactionChain;
+import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
+import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
+import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
+import org.opendaylight.controller.md.sal.common.api.data.TransactionChain;
+import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
+import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
+import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
+import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
+import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
+import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
+import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
+import org.opendaylight.yangtools.concepts.Delegator;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+final class BindingDOMTransactionChainAdapter implements BindingTransactionChain, Delegator<DOMTransactionChain> {
+
+ private static final Logger LOG = LoggerFactory.getLogger(BindingDOMTransactionChainAdapter.class);
+
+ private final DOMTransactionChain delegate;
+ private final BindingToNormalizedNodeCodec codec;
+ private final DelegateChainListener domListener;
+ private final TransactionChainListener bindingListener;
+
+ public BindingDOMTransactionChainAdapter(final DOMDataBroker chainFactory,
+ final BindingToNormalizedNodeCodec codec, final TransactionChainListener listener) {
+ Preconditions.checkNotNull(chainFactory, "DOM Transaction chain factory must not be null");
+ this.domListener = new DelegateChainListener();
+ this.bindingListener = listener;
+ this.delegate = chainFactory.createTransactionChain(domListener);
+ this.codec = codec;
+ }
+
+ @Override
+ public DOMTransactionChain getDelegate() {
+ return delegate;
+ }
+
+ @Override
+ public ReadOnlyTransaction newReadOnlyTransaction() {
+ DOMDataReadOnlyTransaction delegateTx = delegate.newReadOnlyTransaction();
+ ReadOnlyTransaction bindingTx = new BindingDOMReadTransactionAdapter(delegateTx, codec);
+ return bindingTx;
+ }
+
+ @Override
+ public ReadWriteTransaction newReadWriteTransaction() {
+ DOMDataReadWriteTransaction delegateTx = delegate.newReadWriteTransaction();
+ ReadWriteTransaction bindingTx = new BindingDOMReadWriteTransactionAdapter(delegateTx, codec) {
+
+ @Override
+ public CheckedFuture<Void, TransactionCommitFailedException> submit() {
+ return listenForFailure(this,super.submit());
+ }
+
+ };
+ return bindingTx;
+ }
+
+ @Override
+ public WriteTransaction newWriteOnlyTransaction() {
+ final DOMDataWriteTransaction delegateTx = delegate.newWriteOnlyTransaction();
+ WriteTransaction bindingTx = new BindingDOMWriteTransactionAdapter<DOMDataWriteTransaction>(delegateTx, codec) {
+
+ @Override
+ public CheckedFuture<Void,TransactionCommitFailedException> submit() {
+ return listenForFailure(this,super.submit());
+ };
+
+ };
+ return bindingTx;
+ }
+
+ private CheckedFuture<Void, TransactionCommitFailedException> listenForFailure(
+ final WriteTransaction tx, CheckedFuture<Void, TransactionCommitFailedException> future) {
+ Futures.addCallback(future, new FutureCallback<Void>() {
+ @Override
+ public void onFailure(Throwable t) {
+ failTransactionChain(tx,t);
+ }
+
+ @Override
+ public void onSuccess(Void result) {
+ // Intentionally NOOP
+ }
+ });
+
+ return future;
+ }
+
+ private void failTransactionChain(WriteTransaction tx, Throwable t) {
+ /*
+ * We asume correct state change for underlaying transaction
+ *
+ * chain, so we are not changing any of our internal state
+ * to mark that we failed.
+ */
+ this.bindingListener.onTransactionChainFailed(this, tx, t);
+ }
+
+ @Override
+ public void close() {
+ delegate.close();
+ }
+
+ private final class DelegateChainListener implements TransactionChainListener {
+
+ @Override
+ public void onTransactionChainFailed(final TransactionChain<?, ?> chain,
+ final AsyncTransaction<?, ?> transaction, final Throwable cause) {
+ Preconditions.checkState(delegate.equals(chain),
+ "Illegal state - listener for %s was invoked for incorrect chain %s.", delegate, chain);
+ /*
+ * Intentionally NOOP, callback for failure, since we
+ * are also listening on each transaction future for failure,
+ * in order to have reference to Binding Transaction (which was seen by client
+ * of this transaction chain), instead of DOM transaction
+ * which is known only to this chain, binding transaction implementation
+ * and underlying transaction chain.
+ *
+ */
+ LOG.debug("Transaction chain {} failed. Failed DOM Transaction {}",this,transaction,cause);
+ }
+
+ @Override
+ public void onTransactionChainSuccessful(final TransactionChain<?, ?> chain) {
+ Preconditions.checkState(delegate.equals(chain),
+ "Illegal state - listener for %s was invoked for incorrect chain %s.", delegate, chain);
+ bindingListener.onTransactionChainSuccessful(BindingDOMTransactionChainAdapter.this);
+ }
+ }
+
+}
Code Review / controller.git / blobdiff