com.hazelcast.cluster.impl.ClusterClockImpl Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2015, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.cluster.impl;
import com.hazelcast.cluster.ClusterClock;
import com.hazelcast.logging.ILogger;
import com.hazelcast.util.Clock;
public class ClusterClockImpl implements ClusterClock {
private final ILogger logger;
private volatile long clusterTimeDiff = Long.MAX_VALUE;
private volatile long clusterStartTime = Long.MIN_VALUE;
public ClusterClockImpl(ILogger logger) {
this.logger = logger;
}
@Override
public long getClusterTime() {
return Clock.currentTimeMillis() + ((clusterTimeDiff == Long.MAX_VALUE) ? 0 : clusterTimeDiff);
}
public void setMasterTime(long masterTime) {
long diff = masterTime - Clock.currentTimeMillis();
if (logger.isFinestEnabled()) {
logger.finest("Setting cluster time diff to " + diff + "ms.");
}
this.clusterTimeDiff = diff;
}
@Override
public long getClusterTimeDiff() {
return (clusterTimeDiff == Long.MAX_VALUE) ? 0 : clusterTimeDiff;
}
@Override
public long getClusterUpTime() {
return Clock.currentTimeMillis() - clusterStartTime;
}
public void setClusterStartTime(long startTime) {
if (this.clusterStartTime == Long.MIN_VALUE) {
this.clusterStartTime = startTime;
}
}
public long getClusterStartTime() {
return clusterStartTime;
}
}