2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.controller.md.sal.binding.impl;
10 import static com.google.common.base.Preconditions.checkState;
11 import static java.util.Objects.requireNonNull;
13 import com.google.common.util.concurrent.FluentFuture;
14 import com.google.common.util.concurrent.FutureCallback;
15 import com.google.common.util.concurrent.MoreExecutors;
16 import org.opendaylight.controller.md.sal.binding.api.BindingTransactionChain;
17 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
18 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
19 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
20 import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
21 import org.opendaylight.controller.md.sal.common.api.data.TransactionChain;
22 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
23 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
24 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
25 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
26 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
27 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
28 import org.opendaylight.mdsal.common.api.CommitInfo;
29 import org.opendaylight.yangtools.concepts.Delegator;
30 import org.slf4j.Logger;
31 import org.slf4j.LoggerFactory;
34 final class BindingDOMTransactionChainAdapter implements BindingTransactionChain, Delegator<DOMTransactionChain> {
36 private static final Logger LOG = LoggerFactory.getLogger(BindingDOMTransactionChainAdapter.class);
38 private final DOMTransactionChain delegate;
39 private final BindingToNormalizedNodeCodec codec;
40 private final DelegateChainListener domListener;
41 private final TransactionChainListener bindingListener;
43 BindingDOMTransactionChainAdapter(final DOMDataBroker chainFactory,
44 final BindingToNormalizedNodeCodec codec, final TransactionChainListener listener) {
45 this.domListener = new DelegateChainListener();
46 this.bindingListener = listener;
47 this.delegate = requireNonNull(chainFactory, "DOM Transaction chain factory must not be null")
48 .createTransactionChain(domListener);
53 public DOMTransactionChain getDelegate() {
58 public ReadOnlyTransaction newReadOnlyTransaction() {
59 final DOMDataReadOnlyTransaction delegateTx = delegate.newReadOnlyTransaction();
60 return new BindingDOMReadTransactionAdapter(delegateTx, codec);
64 public ReadWriteTransaction newReadWriteTransaction() {
65 final DOMDataReadWriteTransaction delegateTx = delegate.newReadWriteTransaction();
66 return new BindingDOMReadWriteTransactionAdapter(delegateTx, codec) {
69 public FluentFuture<? extends CommitInfo> commit() {
70 return listenForFailure(this, super.commit());
77 public WriteTransaction newWriteOnlyTransaction() {
78 final DOMDataWriteTransaction delegateTx = delegate.newWriteOnlyTransaction();
79 return new BindingDOMWriteTransactionAdapter<DOMDataWriteTransaction>(delegateTx, codec) {
82 public FluentFuture<? extends CommitInfo> commit() {
83 return listenForFailure(this, super.commit());
89 private FluentFuture<? extends CommitInfo> listenForFailure(
90 final WriteTransaction tx, final FluentFuture<? extends CommitInfo> future) {
91 future.addCallback(new FutureCallback<CommitInfo>() {
93 public void onFailure(final Throwable ex) {
94 failTransactionChain(tx,ex);
98 public void onSuccess(final CommitInfo result) {
101 }, MoreExecutors.directExecutor());
106 private void failTransactionChain(final WriteTransaction tx, final Throwable ex) {
108 * We asume correct state change for underlaying transaction
110 * chain, so we are not changing any of our internal state
111 * to mark that we failed.
113 this.bindingListener.onTransactionChainFailed(this, tx, ex);
117 public void close() {
121 private final class DelegateChainListener implements TransactionChainListener {
123 public void onTransactionChainFailed(final TransactionChain<?, ?> chain,
124 final AsyncTransaction<?, ?> transaction, final Throwable cause) {
127 * Intentionally NOOP, callback for failure, since we
128 * are also listening on each transaction future for failure,
129 * in order to have reference to Binding Transaction (which was seen by client
130 * of this transaction chain), instead of DOM transaction
131 * which is known only to this chain, binding transaction implementation
132 * and underlying transaction chain.
134 LOG.debug("Transaction chain {} failed. Failed DOM Transaction {}",this,transaction,cause);
138 public void onTransactionChainSuccessful(final TransactionChain<?, ?> chain) {
140 bindingListener.onTransactionChainSuccessful(BindingDOMTransactionChainAdapter.this);
143 private void checkChain(final TransactionChain<?, ?> chain) {
144 checkState(delegate.equals(chain), "Illegal state - listener for %s was invoked for incorrect chain %s.",