2 * Copyright (c) 2014 Brocade Communications 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.utils;
10 import static org.junit.Assert.assertEquals;
11 import static org.junit.Assert.assertTrue;
12 import java.util.List;
13 import java.util.concurrent.CountDownLatch;
14 import java.util.concurrent.TimeUnit;
15 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
16 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
18 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
19 import com.google.common.collect.Lists;
20 import com.google.common.util.concurrent.Uninterruptibles;
23 * A mock DataChangeListener implementation.
25 * @author Thomas Pantelis
27 public class MockDataChangeListener implements
28 AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> {
30 private final List<AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>>>
31 changeList = Lists.newArrayList();
32 private final CountDownLatch changeLatch;
33 private final int expChangeEventCount;
35 public MockDataChangeListener(int expChangeEventCount) {
36 changeLatch = new CountDownLatch(expChangeEventCount);
37 this.expChangeEventCount = expChangeEventCount;
41 public void onDataChanged(AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>> change) {
42 changeList.add(change);
43 changeLatch.countDown();
46 public void waitForChangeEvents(YangInstanceIdentifier... expPaths) {
47 assertEquals("Change notifications complete", true,
48 Uninterruptibles.awaitUninterruptibly(changeLatch, 5, TimeUnit.SECONDS));
50 for(int i = 0; i < expPaths.length; i++) {
51 assertTrue(String.format("Change %d does not contain %s", (i+1), expPaths[i]),
52 changeList.get(i).getCreatedData().containsKey(expPaths[i]));
56 public void expectNoMoreChanges(String assertMsg) {
57 Uninterruptibles.sleepUninterruptibly(1, TimeUnit.SECONDS);
58 assertEquals(assertMsg, expChangeEventCount, changeList.size());