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

   1 /*
   2  * Copyright (c) 2016, 2017 Cisco 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.actors;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertNotNull;
  12 import static org.junit.Assert.assertTrue;
  13
  14 import akka.actor.ActorRef;
  15 import akka.testkit.javadsl.TestKit;
  16 import java.io.ByteArrayInputStream;
  17 import java.io.ByteArrayOutputStream;
  18 import java.io.ObjectInputStream;
  19 import java.time.Duration;
  20 import java.util.Optional;
  21 import org.junit.Test;
  22 import org.opendaylight.controller.cluster.datastore.AbstractActorTest;
  23 import org.opendaylight.controller.cluster.datastore.persisted.MetadataShardDataTreeSnapshot;
  24 import org.opendaylight.controller.cluster.datastore.persisted.ShardDataTreeSnapshot;
  25 import org.opendaylight.controller.cluster.datastore.persisted.ShardSnapshotState;
  26 import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshotReply;
  27 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
  28 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  29 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  30
  31 public class ShardSnapshotActorTest extends AbstractActorTest {
  32     private static final NormalizedNode<?, ?> DATA = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
  33
  34     private static void testSerializeSnapshot(final String testName, final ShardDataTreeSnapshot snapshot,
  35             final boolean withInstallSnapshot) throws Exception {
  36         final TestKit kit = new TestKit(getSystem());
  37         final ActorRef snapshotActor = getSystem().actorOf(ShardSnapshotActor.props(), testName);
  38         kit.watch(snapshotActor);
  39
  40         final NormalizedNode<?, ?> expectedRoot = snapshot.getRootNode().get();
  41
  42         ByteArrayOutputStream installSnapshotStream = withInstallSnapshot ? new ByteArrayOutputStream() : null;
  43         ShardSnapshotActor.requestSnapshot(snapshotActor, snapshot,
  44             Optional.ofNullable(installSnapshotStream), kit.getRef());
  45
  46         final CaptureSnapshotReply reply = kit.expectMsgClass(Duration.ofSeconds(3), CaptureSnapshotReply.class);
  47         assertNotNull("getSnapshotState is null", reply.getSnapshotState());
  48         assertEquals("SnapshotState type", ShardSnapshotState.class, reply.getSnapshotState().getClass());
  49         assertEquals("Snapshot", snapshot, ((ShardSnapshotState)reply.getSnapshotState()).getSnapshot());
  50
  51         if (installSnapshotStream != null) {
  52             final ShardDataTreeSnapshot deserialized;
  53             try (ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(
  54                 installSnapshotStream.toByteArray()))) {
  55                 deserialized = ShardDataTreeSnapshot.deserialize(in).getSnapshot();
  56             }
  57
  58             assertEquals("Deserialized snapshot type", snapshot.getClass(), deserialized.getClass());
  59
  60             final Optional<NormalizedNode<?, ?>> maybeNode = deserialized.getRootNode();
  61             assertTrue("isPresent", maybeNode.isPresent());
  62             assertEquals("Root node", expectedRoot, maybeNode.get());
  63         }
  64     }
  65
  66     @Test
  67     public void testSerializeBoronSnapshot() throws Exception {
  68         testSerializeSnapshot("testSerializeBoronSnapshotWithInstallSnapshot",
  69                 new MetadataShardDataTreeSnapshot(DATA), true);
  70         testSerializeSnapshot("testSerializeBoronSnapshotWithoutInstallSnapshot",
  71                 new MetadataShardDataTreeSnapshot(DATA), false);
  72     }
  73 }