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 java.io.IOException;
12 import java.io.ObjectInput;
13 import java.io.ObjectOutput;
14 import java.util.ArrayList;
15 import java.util.List;
16 import org.opendaylight.controller.cluster.datastore.DataStoreVersions;
17 import org.opendaylight.controller.cluster.datastore.node.utils.stream.NormalizedNodeInputStreamReader;
18 import org.opendaylight.controller.cluster.datastore.node.utils.stream.NormalizedNodeOutputStreamWriter;
19 import org.opendaylight.controller.cluster.datastore.utils.SerializationUtils;
20 import org.opendaylight.controller.protobuff.messages.persistent.PersistentMessages;
21 import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
24 * MutableCompositeModification is just a mutable version of a
25 * CompositeModification {@link org.opendaylight.controller.cluster.datastore.modification.MutableCompositeModification#addModification(Modification)}
27 public class MutableCompositeModification implements CompositeModification {
28 private static final long serialVersionUID = 1L;
30 private final List<Modification> modifications = new ArrayList<>();
31 private short version;
33 public MutableCompositeModification() {
34 this(DataStoreVersions.CURRENT_VERSION);
37 public MutableCompositeModification(short version) {
38 this.version = version;
42 public void apply(DOMStoreWriteTransaction transaction) {
43 for (Modification modification : modifications) {
44 modification.apply(transaction);
49 public byte getType() {
53 public short getVersion() {
57 public void setVersion(short version) {
58 this.version = version;
62 * Add a new Modification to the list of Modifications represented by this
67 public void addModification(Modification modification) {
68 modifications.add(modification);
72 public List<Modification> getModifications() {
77 public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
78 version = in.readShort();
80 int size = in.readInt();
83 SerializationUtils.REUSABLE_READER_TL.set(new NormalizedNodeInputStreamReader(in));
87 for(int i = 0; i < size; i++) {
88 byte type = in.readByte();
90 case Modification.WRITE:
91 modifications.add(WriteModification.fromStream(in, version));
94 case Modification.MERGE:
95 modifications.add(MergeModification.fromStream(in, version));
98 case Modification.DELETE:
99 modifications.add(DeleteModification.fromStream(in, version));
104 SerializationUtils.REUSABLE_READER_TL.remove();
109 public void writeExternal(ObjectOutput out) throws IOException {
110 out.writeShort(version);
112 out.writeInt(modifications.size());
114 if(modifications.size() > 1) {
115 SerializationUtils.REUSABLE_WRITER_TL.set(new NormalizedNodeOutputStreamWriter(out));
119 for(Modification mod: modifications) {
120 out.writeByte(mod.getType());
121 mod.writeExternal(out);
124 SerializationUtils.REUSABLE_WRITER_TL.remove();
130 public Object toSerializable() {
131 PersistentMessages.CompositeModification.Builder builder =
132 PersistentMessages.CompositeModification.newBuilder();
134 builder.setTimeStamp(System.nanoTime());
136 for (Modification m : modifications) {
137 builder.addModification((PersistentMessages.Modification) m.toSerializable());
140 return builder.build();
143 public static MutableCompositeModification fromSerializable(Object serializable) {
144 if(serializable instanceof MutableCompositeModification) {
145 return (MutableCompositeModification)serializable;
147 return fromLegacySerializable(serializable);
151 private static MutableCompositeModification fromLegacySerializable(Object serializable) {
152 PersistentMessages.CompositeModification o = (PersistentMessages.CompositeModification) serializable;
153 MutableCompositeModification compositeModification = new MutableCompositeModification();
155 for(PersistentMessages.Modification m : o.getModificationList()){
156 if(m.getType().equals(DeleteModification.class.toString())){
157 compositeModification.addModification(DeleteModification.fromSerializable(m));
158 } else if(m.getType().equals(WriteModification.class.toString())){
159 compositeModification.addModification(WriteModification.fromSerializable(m));
160 } else if(m.getType().equals(MergeModification.class.toString())){
161 compositeModification.addModification(MergeModification.fromSerializable(m));
165 return compositeModification;