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 */
018package org.apache.hadoop.hbase.master.balancer;
019
020import org.apache.hadoop.hbase.metrics.BaseSourceImpl;
021import org.apache.hadoop.metrics2.MetricHistogram;
022import org.apache.hadoop.metrics2.lib.MutableFastCounter;
023import org.apache.yetus.audience.InterfaceAudience;
024
025@InterfaceAudience.Private
026public class MetricsBalancerSourceImpl extends BaseSourceImpl implements MetricsBalancerSource {
027  private MetricHistogram blanceClusterHisto;
028  private MutableFastCounter miscCount;
029
030  public MetricsBalancerSourceImpl() {
031    this(METRICS_NAME, METRICS_DESCRIPTION, METRICS_CONTEXT, METRICS_JMX_CONTEXT);
032  }
033
034  public MetricsBalancerSourceImpl(String metricsName, String metricsDescription,
035    String metricsContext, String metricsJmxContext) {
036    super(metricsName, metricsDescription, metricsContext, metricsJmxContext);
037    updateBalancerStatus(true);
038  }
039
040  @Override
041  public void init() {
042    blanceClusterHisto = metricsRegistry.newTimeHistogram(BALANCE_CLUSTER);
043    miscCount = metricsRegistry.newCounter(MISC_INVOATION_COUNT, "", 0L);
044  }
045
046  @Override
047  public void updateBalanceCluster(long time) {
048    blanceClusterHisto.add(time);
049  }
050
051  @Override
052  public void incrMiscInvocations() {
053    miscCount.incr();
054  }
055
056  @Override
057  public void updateBalancerStatus(boolean status) {
058    metricsRegistry.tag(BALANCER_STATUS, "", String.valueOf(status), true);
059  }
060}