2 * Copyright (c) 2015 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.cluster.datastore;
10 import akka.actor.ActorSelection;
11 import com.google.common.base.Optional;
12 import com.google.common.util.concurrent.SettableFuture;
13 import java.util.concurrent.Semaphore;
15 import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
16 import org.opendaylight.controller.cluster.datastore.identifiers.TransactionIdentifier;
17 import org.opendaylight.controller.md.sal.common.api.data.DataStoreUnavailableException;
18 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
20 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
21 import org.slf4j.Logger;
22 import org.slf4j.LoggerFactory;
23 import scala.concurrent.Future;
25 final class NoOpTransactionContext extends AbstractTransactionContext {
26 private static final Logger LOG = LoggerFactory.getLogger(NoOpTransactionContext.class);
28 private final Throwable failure;
29 private final Semaphore operationLimiter;
31 public NoOpTransactionContext(Throwable failure, TransactionIdentifier identifier, Semaphore operationLimiter) {
33 this.failure = failure;
34 this.operationLimiter = operationLimiter;
38 public void closeTransaction() {
39 LOG.debug("NoOpTransactionContext {} closeTransaction called", getIdentifier());
43 public boolean supportsDirectCommit() {
48 public Future<Object> directCommit() {
49 LOG.debug("Tx {} directCommit called, failure: {}", getIdentifier(), failure);
50 operationLimiter.release();
51 return akka.dispatch.Futures.failed(failure);
55 public Future<ActorSelection> readyTransaction() {
56 LOG.debug("Tx {} readyTransaction called, failure: {}", getIdentifier(), failure);
57 operationLimiter.release();
58 return akka.dispatch.Futures.failed(failure);
62 public void deleteData(YangInstanceIdentifier path) {
63 LOG.debug("Tx {} deleteData called path = {}", getIdentifier(), path);
64 operationLimiter.release();
68 public void mergeData(YangInstanceIdentifier path, NormalizedNode<?, ?> data) {
69 LOG.debug("Tx {} mergeData called path = {}", getIdentifier(), path);
70 operationLimiter.release();
74 public void writeData(YangInstanceIdentifier path, NormalizedNode<?, ?> data) {
75 LOG.debug("Tx {} writeData called path = {}", getIdentifier(), path);
76 operationLimiter.release();
80 public void readData(final YangInstanceIdentifier path, SettableFuture<Optional<NormalizedNode<?, ?>>> proxyFuture) {
81 LOG.debug("Tx {} readData called path = {}", getIdentifier(), path);
82 operationLimiter.release();
84 if(failure instanceof NoShardLeaderException) {
85 t = new DataStoreUnavailableException(failure.getMessage(), failure);
89 proxyFuture.setException(new ReadFailedException("Error reading data for path " + path, t));
93 public void dataExists(YangInstanceIdentifier path, SettableFuture<Boolean> proxyFuture) {
94 LOG.debug("Tx {} dataExists called path = {}", getIdentifier(), path);
95 operationLimiter.release();
96 proxyFuture.setException(new ReadFailedException("Error checking exists for path " + path, failure));