/**
* Copyright The Apache Software Foundation
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with this
* work for additional information regarding copyright ownership. The ASF
* licenses this file to you 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.alibaba.wasp.master;
import com.alibaba.wasp.ClusterId;
import com.alibaba.wasp.ServerName;
import com.alibaba.wasp.master.metrics.MetricsMasterWrapper;
import com.alibaba.wasp.zookeeper.ZooKeeperWatcher;
/**
* Impl for exposing FMaster Information through JMX
*/
public class MetricsMasterWrapperImpl implements MetricsMasterWrapper {
private final FMaster master;
public MetricsMasterWrapperImpl(final FMaster master) {
this.master = master;
}
@Override
public double getAverageLoad() {
return master.getAverageLoad();
}
@Override
public String getClusterId() {
ClusterId clusterId = master.getClusterId();
if (clusterId == null) {
return "";
}
return clusterId.toString();
}
@Override
public String getZookeeperQuorum() {
ZooKeeperWatcher zk = master.getZooKeeperWatcher();
if (zk == null) {
return "";
}
return zk.getQuorum();
}
@Override
public long getStartTime() {
return master.getMasterStartTime();
}
@Override
public long getActiveTime() {
return master.getMasterActiveTime();
}
@Override
public int getFServers() {
FServerManager serverManager = this.master.getFServerManager();
if (serverManager == null) {
return 0;
}
return serverManager.getOnlineServers().size();
}
@Override
public int getDeadFServers() {
FServerManager serverManager = this.master.getFServerManager();
if (serverManager == null) {
return 0;
}
return serverManager.getDeadServers().size();
}
@Override
public String getServerName() {
ServerName serverName = master.getServerName();
if (serverName == null) {
return "";
}
return serverName.getServerName();
}
@Override
public boolean getIsActiveMaster() {
return master.isActiveMaster();
}
}