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.raft;
11 import com.google.common.base.Stopwatch;
12 import java.util.concurrent.TimeUnit;
13 import java.util.concurrent.atomic.AtomicLong;
14 import scala.concurrent.duration.FiniteDuration;
16 public class FollowerLogInformationImpl implements FollowerLogInformation {
18 private final String id;
20 private final AtomicLong nextIndex;
22 private final AtomicLong matchIndex;
24 private final Stopwatch stopwatch;
26 private final long followerTimeoutMillis;
28 public FollowerLogInformationImpl(String id, long nextIndex,
29 long matchIndex, FiniteDuration followerTimeoutDuration) {
31 this.nextIndex = new AtomicLong(nextIndex);
32 this.matchIndex = new AtomicLong(matchIndex);
33 this.stopwatch = new Stopwatch();
34 this.followerTimeoutMillis = followerTimeoutDuration.toMillis();
38 public long incrNextIndex(){
39 return nextIndex.incrementAndGet();
43 public long decrNextIndex() {
44 return nextIndex.decrementAndGet();
48 public void setNextIndex(long nextIndex) {
49 this.nextIndex.set(nextIndex);
53 public long incrMatchIndex(){
54 return matchIndex.incrementAndGet();
58 public void setMatchIndex(long matchIndex) {
59 this.matchIndex.set(matchIndex);
63 public String getId() {
68 public long getNextIndex() {
69 return nextIndex.get();
73 public long getMatchIndex() {
74 return matchIndex.get();
78 public boolean isFollowerActive() {
79 long elapsed = stopwatch.elapsed(TimeUnit.MILLISECONDS);
80 return (stopwatch.isRunning()) && (elapsed <= followerTimeoutMillis);
84 public void markFollowerActive() {
85 if (stopwatch.isRunning()) {
92 public void markFollowerInActive() {
93 if (stopwatch.isRunning()) {