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 com.google.common.base.Preconditions;
11 import com.google.common.util.concurrent.CheckedFuture;
12 import com.google.common.util.concurrent.FutureCallback;
13 import com.google.common.util.concurrent.Futures;
14 import org.opendaylight.controller.md.sal.binding.api.BindingTransactionChain;
15 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
16 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
17 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
18 import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
19 import org.opendaylight.controller.md.sal.common.api.data.TransactionChain;
20 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
21 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
22 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
23 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
24 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
25 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
26 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
27 import org.opendaylight.yangtools.concepts.Delegator;
29 class BindingTranslatedTransactionChain implements BindingTransactionChain, Delegator<DOMTransactionChain> {
31 private final DOMTransactionChain delegate;
32 private final BindingToNormalizedNodeCodec codec;
33 private final DelegateChainListener delegatingListener;
34 private final TransactionChainListener listener;
36 public BindingTranslatedTransactionChain(final DOMDataBroker chainFactory,
37 final BindingToNormalizedNodeCodec codec, final TransactionChainListener listener) {
38 Preconditions.checkNotNull(chainFactory, "DOM Transaction chain factory must not be null");
39 this.delegatingListener = new DelegateChainListener();
40 this.listener = listener;
41 this.delegate = chainFactory.createTransactionChain(listener);
46 public DOMTransactionChain getDelegate() {
51 public ReadOnlyTransaction newReadOnlyTransaction() {
52 DOMDataReadOnlyTransaction delegateTx = delegate.newReadOnlyTransaction();
53 ReadOnlyTransaction bindingTx = new BindingDataReadTransactionImpl(delegateTx, codec);
58 public ReadWriteTransaction newReadWriteTransaction() {
59 DOMDataReadWriteTransaction delegateTx = delegate.newReadWriteTransaction();
60 ReadWriteTransaction bindingTx = new BindingDataReadWriteTransactionImpl(delegateTx, codec) {
63 public CheckedFuture<Void, TransactionCommitFailedException> submit() {
64 return listenForFailure(this,super.submit());
72 public WriteTransaction newWriteOnlyTransaction() {
73 final DOMDataWriteTransaction delegateTx = delegate.newWriteOnlyTransaction();
74 WriteTransaction bindingTx = new BindingDataWriteTransactionImpl<DOMDataWriteTransaction>(delegateTx, codec) {
77 public CheckedFuture<Void,TransactionCommitFailedException> submit() {
78 return listenForFailure(this,super.submit());
85 protected CheckedFuture<Void, TransactionCommitFailedException> listenForFailure(
86 final WriteTransaction tx, CheckedFuture<Void, TransactionCommitFailedException> future) {
87 Futures.addCallback(future, new FutureCallback<Void>() {
89 public void onFailure(Throwable t) {
90 failTransactionChain(tx,t);
94 public void onSuccess(Void result) {
102 protected void failTransactionChain(WriteTransaction tx, Throwable t) {
103 // We asume correct state change for underlaying transaction
104 // chain, so we are not changing any of our internal state
105 // to mark that we failed.
106 this.delegatingListener.onTransactionChainFailed(this, tx, t);
110 public void close() {
114 private final class DelegateChainListener implements TransactionChainListener {
117 public void onTransactionChainFailed(final TransactionChain<?, ?> chain,
118 final AsyncTransaction<?, ?> transaction, final Throwable cause) {
120 * Intentionally NOOP, callback for failure, since we
121 * are also listening on each transaction for failure.
123 * by listening on submit future for Binding transaction
124 * in order to provide Binding transaction (which was seen by client
125 * of this transaction chain, instead of
130 public void onTransactionChainSuccessful(final TransactionChain<?, ?> chain) {
131 Preconditions.checkState(delegate.equals(chain),
132 "Illegal state - listener for %s was invoked for incorrect chain %s.", delegate, chain);
133 listener.onTransactionChainSuccessful(BindingTranslatedTransactionChain.this);