opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/DataTreeChangeListenerSupportTest.java

   1 /*
   2  * Copyright (c) 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.controller.cluster.datastore;
   9
  10 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.INNER_LIST_QNAME;
  11 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.OUTER_LIST_PATH;
  12 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.OUTER_LIST_QNAME;
  13 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.TEST_PATH;
  14 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.TEST_QNAME;
  15 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.innerEntryPath;
  16 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.innerNode;
  17 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.outerEntryKey;
  18 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.outerEntryPath;
  19 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.outerNode;
  20 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.outerNodeEntry;
  21 import static org.opendaylight.controller.md.cluster.datastore.model.TestModel.testNodeWithOuter;
  22
  23 import akka.actor.ActorRef;
  24 import akka.actor.ActorSelection;
  25 import akka.pattern.Patterns;
  26 import akka.testkit.JavaTestKit;
  27 import akka.testkit.TestActorRef;
  28 import akka.util.Timeout;
  29 import com.google.common.base.Throwables;
  30 import java.util.AbstractMap.SimpleEntry;
  31 import java.util.Map.Entry;
  32 import java.util.concurrent.TimeUnit;
  33 import org.junit.After;
  34 import org.junit.Before;
  35 import org.junit.Test;
  36 import org.opendaylight.controller.cluster.datastore.messages.CloseDataTreeNotificationListenerRegistration;
  37 import org.opendaylight.controller.cluster.datastore.messages.CloseDataTreeNotificationListenerRegistrationReply;
  38 import org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeChangeListener;
  39 import org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeChangeListenerReply;
  40 import org.opendaylight.controller.cluster.datastore.utils.MockDataTreeChangeListener;
  41 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
  42 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  43 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  44 import scala.concurrent.Await;
  45 import scala.concurrent.duration.Duration;
  46
  47 /**
  48  * Unit tests for DataTreeChangeListenerSupport.
  49  *
  50  * @author Thomas Pantelis
  51  */
  52 public class DataTreeChangeListenerSupportTest extends AbstractShardTest {
  53     private Shard shard;
  54     private TestActorRef<Shard> shardActor;
  55
  56     @Override
  57     @Before
  58     public void setUp() {
  59         super.setUp();
  60         createShard();
  61     }
  62
  63     @Override
  64     @After
  65     public void tearDown() {
  66         super.tearDown();
  67         actorFactory.close();
  68     }
  69
  70     @Test
  71     public void testChangeListenerWithNoInitialData() throws Exception {
  72         MockDataTreeChangeListener listener = registerChangeListener(TEST_PATH, 0).getKey();
  73
  74         listener.expectNoMoreChanges("Unexpected initial change event");
  75     }
  76
  77     @Test
  78     public void testInitialChangeListenerEventWithContainerPath() throws Exception {
  79         writeToStore(shard.getDataStore(), TEST_PATH, ImmutableNodes.containerNode(TEST_QNAME));
  80
  81         Entry<MockDataTreeChangeListener, ActorSelection> entry = registerChangeListener(TEST_PATH, 1);
  82         MockDataTreeChangeListener listener = entry.getKey();
  83
  84         listener.waitForChangeEvents();
  85         listener.verifyNotifiedData(TEST_PATH);
  86
  87         listener.reset(1);
  88
  89         writeToStore(shard.getDataStore(), TEST_PATH, ImmutableNodes.containerNode(TEST_QNAME));
  90         listener.waitForChangeEvents();
  91         listener.verifyNotifiedData(TEST_PATH);
  92
  93         listener.reset(1);
  94         JavaTestKit kit = new JavaTestKit(getSystem());
  95         entry.getValue().tell(CloseDataTreeNotificationListenerRegistration.getInstance(), kit.getRef());
  96         kit.expectMsgClass(JavaTestKit.duration("5 seconds"), CloseDataTreeNotificationListenerRegistrationReply.class);
  97
  98         writeToStore(shard.getDataStore(), TEST_PATH, ImmutableNodes.containerNode(TEST_QNAME));
  99         listener.verifyNoNotifiedData(TEST_PATH);
 100     }
 101
 102     @Test
 103     public void testInitialChangeListenerEventWithListPath() throws Exception {
 104         mergeToStore(shard.getDataStore(), TEST_PATH, testNodeWithOuter(1, 2));
 105
 106         MockDataTreeChangeListener listener = registerChangeListener(OUTER_LIST_PATH, 1).getKey();
 107
 108         listener.waitForChangeEvents();
 109         listener.verifyNotifiedData(OUTER_LIST_PATH);
 110     }
 111
 112     @Test
 113     public void testInitialChangeListenerEventWithWildcardedListPath() throws Exception {
 114         mergeToStore(shard.getDataStore(), TEST_PATH, testNodeWithOuter(1, 2));
 115
 116         MockDataTreeChangeListener listener =
 117                 registerChangeListener(OUTER_LIST_PATH.node(OUTER_LIST_QNAME), 1).getKey();
 118
 119         listener.waitForChangeEvents();
 120         listener.verifyNotifiedData(outerEntryPath(1), outerEntryPath(2));
 121     }
 122
 123     @Test
 124     public void testInitialChangeListenerEventWithNestedWildcardedListsPath() throws Exception {
 125         mergeToStore(shard.getDataStore(), TEST_PATH, testNodeWithOuter(outerNode(
 126                 outerNodeEntry(1, innerNode("one", "two")), outerNodeEntry(2, innerNode("three", "four")))));
 127
 128         MockDataTreeChangeListener listener = registerChangeListener(
 129                 OUTER_LIST_PATH.node(OUTER_LIST_QNAME).node(INNER_LIST_QNAME).node(INNER_LIST_QNAME), 1).getKey();
 130
 131         listener.waitForChangeEvents();
 132         listener.verifyNotifiedData(innerEntryPath(1, "one"), innerEntryPath(1, "two"), innerEntryPath(2, "three"),
 133                 innerEntryPath(2, "four"));
 134
 135         // Register for a specific outer list entry
 136
 137         MockDataTreeChangeListener listener2 = registerChangeListener(
 138                 OUTER_LIST_PATH.node(outerEntryKey(1)).node(INNER_LIST_QNAME).node(INNER_LIST_QNAME), 1).getKey();
 139
 140         listener2.waitForChangeEvents();
 141         listener2.verifyNotifiedData(innerEntryPath(1, "one"), innerEntryPath(1, "two"));
 142         listener2.verifyNoNotifiedData(innerEntryPath(2, "three"), innerEntryPath(2, "four"));
 143
 144         listener.reset(1);
 145         listener2.reset(1);
 146
 147         mergeToStore(shard.getDataStore(), TEST_PATH, testNodeWithOuter(outerNode(
 148                 outerNodeEntry(1, innerNode("three")))));
 149
 150         listener.waitForChangeEvents();
 151         listener.verifyNotifiedData(innerEntryPath(1, "three"));
 152
 153         listener2.waitForChangeEvents();
 154         listener2.verifyNotifiedData(innerEntryPath(1, "three"));
 155     }
 156
 157     @SuppressWarnings("checkstyle:IllegalCatch")
 158     private Entry<MockDataTreeChangeListener, ActorSelection> registerChangeListener(final YangInstanceIdentifier path,
 159             final int expectedEvents) {
 160         MockDataTreeChangeListener listener = new MockDataTreeChangeListener(expectedEvents);
 161         ActorRef dclActor = actorFactory.createActor(DataTreeChangeListenerActor.props(listener, TestModel.TEST_PATH));
 162
 163         try {
 164             RegisterDataTreeChangeListenerReply reply = (RegisterDataTreeChangeListenerReply)
 165                 Await.result(Patterns.ask(shardActor, new RegisterDataTreeChangeListener(path, dclActor, false),
 166                     new Timeout(5, TimeUnit.SECONDS)), Duration.create(5, TimeUnit.SECONDS));
 167             return new SimpleEntry<>(listener, getSystem().actorSelection(reply.getListenerRegistrationPath()));
 168
 169         } catch (Exception e) {
 170             Throwables.propagate(e);
 171             return null;
 172         }
 173     }
 174
 175     private void createShard() {
 176         shardActor = actorFactory.createTestActor(newShardProps());
 177         ShardTestKit.waitUntilLeader(shardActor);
 178         shard = shardActor.underlyingActor();
 179     }
 180 }