2 * Copyright (c) 2014 Cisco 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.modification;
10 import static com.google.common.base.Preconditions.checkArgument;
11 import static java.util.Objects.requireNonNull;
13 import java.io.IOException;
14 import java.io.ObjectInput;
15 import java.io.ObjectOutput;
16 import java.util.ArrayList;
17 import java.util.Collections;
18 import java.util.List;
19 import org.opendaylight.controller.cluster.datastore.DataStoreVersions;
20 import org.opendaylight.controller.cluster.datastore.messages.VersionedExternalizableMessage;
21 import org.opendaylight.controller.cluster.datastore.node.utils.stream.NormalizedNodeDataInput;
22 import org.opendaylight.controller.cluster.datastore.node.utils.stream.NormalizedNodeDataOutput;
23 import org.opendaylight.controller.cluster.datastore.node.utils.stream.NormalizedNodeInputOutput;
24 import org.opendaylight.mdsal.dom.spi.store.DOMStoreWriteTransaction;
25 import org.opendaylight.yangtools.yang.data.api.schema.stream.ReusableStreamReceiver;
26 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
27 import org.opendaylight.yangtools.yang.data.impl.schema.ReusableImmutableNormalizedNodeStreamWriter;
30 * MutableCompositeModification is just a mutable version of a CompositeModification.
32 public class MutableCompositeModification extends VersionedExternalizableMessage implements CompositeModification {
33 private static final long serialVersionUID = 1L;
35 private final List<Modification> modifications = new ArrayList<>();
36 private List<Modification> immutableModifications = null;
38 public MutableCompositeModification() {
39 this(DataStoreVersions.CURRENT_VERSION);
42 public MutableCompositeModification(final short version) {
47 public void apply(final DOMStoreWriteTransaction transaction) {
48 for (Modification modification : modifications) {
49 modification.apply(transaction);
54 public void apply(final DataTreeModification transaction) {
55 for (Modification modification : modifications) {
56 modification.apply(transaction);
61 public byte getType() {
66 * Add a new Modification to the list of Modifications represented by this composite.
68 * @param modification the modification to add.
70 public void addModification(final Modification modification) {
71 modifications.add(requireNonNull(modification));
74 public void addModifications(final Iterable<Modification> newMods) {
75 for (Modification mod : newMods) {
81 public List<Modification> getModifications() {
82 if (immutableModifications == null) {
83 immutableModifications = Collections.unmodifiableList(modifications);
86 return immutableModifications;
90 public void readExternal(final ObjectInput in) throws IOException, ClassNotFoundException {
91 super.readExternal(in);
93 int size = in.readInt();
95 final NormalizedNodeDataInput input = NormalizedNodeInputOutput.newDataInputWithoutValidation(in);
96 final ReusableStreamReceiver receiver = ReusableImmutableNormalizedNodeStreamWriter.create();
98 for (int i = 0; i < size; i++) {
99 byte type = in.readByte();
101 case Modification.WRITE:
102 modifications.add(WriteModification.fromStream(input, getVersion(), receiver));
105 case Modification.MERGE:
106 modifications.add(MergeModification.fromStream(input, getVersion(), receiver));
109 case Modification.DELETE:
110 modifications.add(DeleteModification.fromStream(input, getVersion()));
120 public void writeExternal(final ObjectOutput out) throws IOException {
121 super.writeExternal(out);
123 final int size = modifications.size();
126 try (NormalizedNodeDataOutput stream = NormalizedNodeInputOutput.newDataOutput(out, getStreamVersion())) {
127 for (Modification mod : modifications) {
128 out.writeByte(mod.getType());
135 public static MutableCompositeModification fromSerializable(final Object serializable) {
136 checkArgument(serializable instanceof MutableCompositeModification);
137 return (MutableCompositeModification)serializable;
141 public void writeTo(final NormalizedNodeDataOutput out) throws IOException {
142 throw new UnsupportedOperationException();