2 * Copyright (c) 2016 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.access.commands;
10 import akka.actor.ActorRef;
11 import com.google.common.annotations.Beta;
12 import com.google.common.base.Preconditions;
13 import java.util.ArrayList;
14 import java.util.List;
15 import javax.annotation.concurrent.NotThreadSafe;
16 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
17 import org.opendaylight.yangtools.concepts.Builder;
18 import org.opendaylight.yangtools.concepts.Identifiable;
21 * A reusable {@link Builder} for creating {@link ModifyTransactionRequest} message instances. Its internal state is
22 * reset when {@link #build()} is invoked, hence it can be used to create a sequence of messages.
24 * @author Robert Varga
28 public final class ModifyTransactionRequestBuilder implements Builder<ModifyTransactionRequest>,
29 Identifiable<TransactionIdentifier> {
30 private final List<TransactionModification> modifications = new ArrayList<>(1);
31 private final TransactionIdentifier identifier;
32 private final ActorRef replyTo;
33 private PersistenceProtocol protocol = null;
35 public ModifyTransactionRequestBuilder(final TransactionIdentifier identifier, final ActorRef replyTo) {
36 this.identifier = Preconditions.checkNotNull(identifier);
37 this.replyTo = Preconditions.checkNotNull(replyTo);
41 public TransactionIdentifier getIdentifier() {
45 private void checkFinished() {
46 Preconditions.checkState(protocol != null, "Batch has already been finished");
49 public void addModification(final TransactionModification modification) {
51 modifications.add(Preconditions.checkNotNull(modification));
54 public void setAbort() {
56 // Transaction is being aborted, no need to transmit operations
57 modifications.clear();
58 protocol = PersistenceProtocol.ABORT;
61 public void setCommit(final boolean coordinated) {
63 protocol = coordinated ? PersistenceProtocol.THREE_PHASE : PersistenceProtocol.SIMPLE;
67 return modifications.size();
71 public ModifyTransactionRequest build() {
72 final ModifyTransactionRequest ret = new ModifyTransactionRequest(identifier, replyTo, modifications, protocol);
73 modifications.clear();