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
9 package org.opendaylight.controller.cluster.datastore.modification;
11 import com.google.common.base.Preconditions;
12 import java.io.IOException;
13 import java.io.ObjectInput;
14 import java.io.ObjectOutput;
15 import java.util.ArrayList;
16 import java.util.Collections;
17 import java.util.List;
18 import org.opendaylight.controller.cluster.datastore.DataStoreVersions;
19 import org.opendaylight.controller.cluster.datastore.messages.VersionedExternalizableMessage;
20 import org.opendaylight.controller.cluster.datastore.node.utils.stream.NormalizedNodeInputOutput;
21 import org.opendaylight.controller.cluster.datastore.node.utils.stream.SerializationUtils;
22 import org.opendaylight.mdsal.dom.spi.store.DOMStoreWriteTransaction;
23 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
26 * MutableCompositeModification is just a mutable version of a CompositeModification.
28 public class MutableCompositeModification extends VersionedExternalizableMessage implements CompositeModification {
29 private static final long serialVersionUID = 1L;
31 private final List<Modification> modifications = new ArrayList<>();
32 private List<Modification> immutableModifications = null;
34 public MutableCompositeModification() {
35 this(DataStoreVersions.CURRENT_VERSION);
38 public MutableCompositeModification(short version) {
43 public void apply(DOMStoreWriteTransaction transaction) {
44 for (Modification modification : modifications) {
45 modification.apply(transaction);
50 public void apply(DataTreeModification transaction) {
51 for (Modification modification : modifications) {
52 modification.apply(transaction);
57 public byte getType() {
62 * Add a new Modification to the list of Modifications represented by this composite.
64 * @param modification the modification to add.
66 public void addModification(Modification modification) {
67 Preconditions.checkNotNull(modification);
68 modifications.add(modification);
71 public void addModifications(Iterable<Modification> newMods) {
72 for (Modification mod : newMods) {
78 public List<Modification> getModifications() {
79 if (immutableModifications == null) {
80 immutableModifications = Collections.unmodifiableList(modifications);
83 return immutableModifications;
87 public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
88 super.readExternal(in);
90 int size = in.readInt();
93 SerializationUtils.REUSABLE_READER_TL.set(NormalizedNodeInputOutput.newDataInputWithoutValidation(in));
97 for (int i = 0; i < size; i++) {
98 byte type = in.readByte();
100 case Modification.WRITE:
101 modifications.add(WriteModification.fromStream(in, getVersion()));
104 case Modification.MERGE:
105 modifications.add(MergeModification.fromStream(in, getVersion()));
108 case Modification.DELETE:
109 modifications.add(DeleteModification.fromStream(in, getVersion()));
116 SerializationUtils.REUSABLE_READER_TL.remove();
121 public void writeExternal(ObjectOutput out) throws IOException {
122 super.writeExternal(out);
124 out.writeInt(modifications.size());
126 if (modifications.size() > 1) {
127 SerializationUtils.REUSABLE_WRITER_TL.set(NormalizedNodeInputOutput.newDataOutput(out));
131 for (Modification mod: modifications) {
132 out.writeByte(mod.getType());
133 mod.writeExternal(out);
136 SerializationUtils.REUSABLE_WRITER_TL.remove();
140 public static MutableCompositeModification fromSerializable(Object serializable) {
141 Preconditions.checkArgument(serializable instanceof MutableCompositeModification);
142 return (MutableCompositeModification)serializable;