001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019package org.apache.hadoop.hbase.master.balancer;
020
021import org.apache.hadoop.hbase.metrics.BaseSourceImpl;
022import org.apache.hadoop.metrics2.MetricHistogram;
023import org.apache.hadoop.metrics2.lib.MutableFastCounter;
024import org.apache.yetus.audience.InterfaceAudience;
025
026@InterfaceAudience.Private
027public class MetricsBalancerSourceImpl extends BaseSourceImpl implements MetricsBalancerSource {
028  private MetricHistogram blanceClusterHisto;
029  private MutableFastCounter miscCount;
030
031  public MetricsBalancerSourceImpl() {
032    this(METRICS_NAME, METRICS_DESCRIPTION, METRICS_CONTEXT, METRICS_JMX_CONTEXT);
033  }
034
035  public MetricsBalancerSourceImpl(String metricsName,
036                                   String metricsDescription,
037                                   String metricsContext, String metricsJmxContext) {
038    super(metricsName, metricsDescription, metricsContext, metricsJmxContext);
039    updateBalancerStatus(true);
040  }
041
042  @Override
043  public void init() {
044    blanceClusterHisto = metricsRegistry.newTimeHistogram(BALANCE_CLUSTER);
045    miscCount = metricsRegistry.newCounter(MISC_INVOATION_COUNT, "", 0L);
046  }
047
048  @Override
049  public void updateBalanceCluster(long time) {
050    blanceClusterHisto.add(time);
051  }
052
053  @Override
054  public void incrMiscInvocations() {
055    miscCount.incr();
056  }
057
058  @Override
059  public void updateBalancerStatus(boolean status) {
060    metricsRegistry.tag(BALANCER_STATUS,"", String.valueOf(status), true);
061  }
062}