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

   1 /*
   2  * Copyright (c) 2016 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.persisted;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import com.google.common.collect.ImmutableMap;
  12 import java.io.Externalizable;
  13 import java.io.IOException;
  14 import java.io.ObjectInput;
  15 import java.io.ObjectOutput;
  16 import java.util.Map;
  17 import java.util.Optional;
  18 import org.junit.Test;
  19 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
  20 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  21 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  22 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  23 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
  24
  25 /**
  26  * Unit tests for ShardDataTreeSnapshot.
  27  *
  28  * @author Thomas Pantelis
  29  */
  30 public class ShardDataTreeSnapshotTest {
  31
  32     @Test
  33     public void testShardDataTreeSnapshotWithNoMetadata() throws Exception {
  34         NormalizedNode<?, ?> expectedNode = ImmutableContainerNodeBuilder.create().withNodeIdentifier(
  35                 new YangInstanceIdentifier.NodeIdentifier(TestModel.TEST_QNAME)).
  36                 withChild(ImmutableNodes.leafNode(TestModel.DESC_QNAME, "foo")).build();
  37
  38         MetadataShardDataTreeSnapshot snapshot = new MetadataShardDataTreeSnapshot(expectedNode);
  39         byte[] serialized = snapshot.serialize();
  40
  41         ShardDataTreeSnapshot deserialized = ShardDataTreeSnapshot.deserialize(serialized);
  42
  43         Optional<NormalizedNode<?, ?>> actualNode = deserialized.getRootNode();
  44         assertEquals("rootNode present", true, actualNode.isPresent());
  45         assertEquals("rootNode", expectedNode, actualNode.get());
  46         assertEquals("Deserialized type", MetadataShardDataTreeSnapshot.class, deserialized.getClass());
  47         assertEquals("Metadata size", 0, ((MetadataShardDataTreeSnapshot)deserialized).getMetadata().size());
  48     }
  49
  50     @Test
  51     public void testShardDataTreeSnapshotWithMetadata() throws Exception {
  52         NormalizedNode<?, ?> expectedNode = ImmutableContainerNodeBuilder.create().withNodeIdentifier(
  53                 new YangInstanceIdentifier.NodeIdentifier(TestModel.TEST_QNAME)).
  54                 withChild(ImmutableNodes.leafNode(TestModel.DESC_QNAME, "foo")).build();
  55
  56         Map<Class<? extends ShardDataTreeSnapshotMetadata>, ShardDataTreeSnapshotMetadata> expMetadata =
  57                 ImmutableMap.of(TestShardDataTreeSnapshotMetadata.class, new TestShardDataTreeSnapshotMetadata("test"));
  58         MetadataShardDataTreeSnapshot snapshot = new MetadataShardDataTreeSnapshot(expectedNode, expMetadata);
  59         byte[] serialized = snapshot.serialize();
  60
  61         ShardDataTreeSnapshot deserialized = ShardDataTreeSnapshot.deserialize(serialized);
  62
  63         Optional<NormalizedNode<?, ?>> actualNode = deserialized.getRootNode();
  64         assertEquals("rootNode present", true, actualNode.isPresent());
  65         assertEquals("rootNode", expectedNode, actualNode.get());
  66         assertEquals("Deserialized type", MetadataShardDataTreeSnapshot.class, deserialized.getClass());
  67         assertEquals("Metadata", expMetadata, ((MetadataShardDataTreeSnapshot)deserialized).getMetadata());
  68     }
  69
  70     @Test
  71     public void testPreBoronShardDataTreeSnapshot() throws Exception {
  72         NormalizedNode<?, ?> expectedNode = ImmutableContainerNodeBuilder.create().withNodeIdentifier(
  73                 new YangInstanceIdentifier.NodeIdentifier(TestModel.TEST_QNAME)).
  74                 withChild(ImmutableNodes.leafNode(TestModel.DESC_QNAME, "foo")).build();
  75
  76         PreBoronShardDataTreeSnapshot snapshot = new PreBoronShardDataTreeSnapshot(expectedNode);
  77         byte[] serialized = snapshot.serialize();
  78
  79         ShardDataTreeSnapshot deserialized = ShardDataTreeSnapshot.deserialize(serialized);
  80
  81         Optional<NormalizedNode<?, ?>> actualNode = deserialized.getRootNode();
  82         assertEquals("rootNode present", true, actualNode.isPresent());
  83         assertEquals("rootNode", expectedNode, actualNode.get());
  84         assertEquals("Deserialized type", PreBoronShardDataTreeSnapshot.class, deserialized.getClass());
  85     }
  86
  87     static class TestShardDataTreeSnapshotMetadata extends ShardDataTreeSnapshotMetadata {
  88         private static final long serialVersionUID = 1L;
  89
  90         private final String data;
  91
  92         TestShardDataTreeSnapshotMetadata(String data) {
  93             this.data = data;
  94         }
  95
  96         @Override
  97         protected Externalizable externalizableProxy() {
  98             return new Proxy(data);
  99         }
 100
 101         @Override
 102         public int hashCode() {
 103             return data.hashCode();
 104         }
 105
 106         @Override
 107         public boolean equals(Object obj) {
 108             return data.equals(((TestShardDataTreeSnapshotMetadata)obj).data);
 109         }
 110
 111
 112         private static class Proxy implements Externalizable {
 113             private String data;
 114
 115             public Proxy() {
 116             }
 117
 118             Proxy(String data) {
 119                 this.data = data;
 120             }
 121
 122             @Override
 123             public void writeExternal(ObjectOutput out) throws IOException {
 124                 out.writeObject(data);
 125             }
 126
 127             @Override
 128             public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
 129                 data = (String) in.readObject();
 130             }
 131
 132             Object readResolve() {
 133                 return new TestShardDataTreeSnapshotMetadata(data);
 134             }
 135         }
 136     }
 137 }