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 com.google.common.io.ByteSource;
  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.io.InputOutputStreamFactory;
  27 import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshotReply;
  28 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
  29 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  30 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  31
  32 public class ShardSnapshotActorTest extends AbstractActorTest {
  33     private static final InputOutputStreamFactory STREAM_FACTORY = InputOutputStreamFactory.simple();
  34
  35     private static final NormalizedNode<?, ?> DATA = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
  36
  37     private static void testSerializeSnapshot(final String testName, final ShardDataTreeSnapshot snapshot,
  38             final boolean withInstallSnapshot) throws Exception {
  39         final TestKit kit = new TestKit(getSystem());
  40         final ActorRef snapshotActor = getSystem().actorOf(ShardSnapshotActor.props(STREAM_FACTORY), testName);
  41         kit.watch(snapshotActor);
  42
  43         final NormalizedNode<?, ?> expectedRoot = snapshot.getRootNode().get();
  44
  45         ByteArrayOutputStream installSnapshotStream = withInstallSnapshot ? new ByteArrayOutputStream() : null;
  46         ShardSnapshotActor.requestSnapshot(snapshotActor, snapshot,
  47             Optional.ofNullable(installSnapshotStream), kit.getRef());
  48
  49         final CaptureSnapshotReply reply = kit.expectMsgClass(Duration.ofSeconds(3), CaptureSnapshotReply.class);
  50         assertNotNull("getSnapshotState is null", reply.getSnapshotState());
  51         assertEquals("SnapshotState type", ShardSnapshotState.class, reply.getSnapshotState().getClass());
  52         assertEquals("Snapshot", snapshot, ((ShardSnapshotState)reply.getSnapshotState()).getSnapshot());
  53
  54         if (installSnapshotStream != null) {
  55             final ShardDataTreeSnapshot deserialized;
  56             try (ObjectInputStream in = new ObjectInputStream(STREAM_FACTORY.createInputStream(
  57                     ByteSource.wrap(installSnapshotStream.toByteArray())))) {
  58                 deserialized = ShardDataTreeSnapshot.deserialize(in).getSnapshot();
  59             }
  60
  61             assertEquals("Deserialized snapshot type", snapshot.getClass(), deserialized.getClass());
  62
  63             final Optional<NormalizedNode<?, ?>> maybeNode = deserialized.getRootNode();
  64             assertTrue("isPresent", maybeNode.isPresent());
  65             assertEquals("Root node", expectedRoot, maybeNode.get());
  66         }
  67     }
  68
  69     @Test
  70     public void testSerializeBoronSnapshot() throws Exception {
  71         testSerializeSnapshot("testSerializeBoronSnapshotWithInstallSnapshot",
  72                 new MetadataShardDataTreeSnapshot(DATA), true);
  73         testSerializeSnapshot("testSerializeBoronSnapshotWithoutInstallSnapshot",
  74                 new MetadataShardDataTreeSnapshot(DATA), false);
  75     }
  76 }