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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  package org.apache.hadoop.hbase.master.balancer;
20  
21  import org.apache.hadoop.hbase.classification.InterfaceAudience;
22  import org.apache.hadoop.hbase.metrics.BaseSourceImpl;
23  import org.apache.hadoop.metrics2.lib.MutableCounterLong;
24  import org.apache.hadoop.metrics2.lib.MutableHistogram;
25  
26  @InterfaceAudience.Private
27  public class MetricsBalancerSourceImpl extends BaseSourceImpl implements MetricsBalancerSource{
28  
29    private MutableHistogram blanceClusterHisto;
30    private MutableCounterLong miscCount;
31  
32    public MetricsBalancerSourceImpl() {
33      this(METRICS_NAME, METRICS_DESCRIPTION, METRICS_CONTEXT, METRICS_JMX_CONTEXT);
34    }
35  
36    public MetricsBalancerSourceImpl(String metricsName,
37                                     String metricsDescription,
38                                     String metricsContext, String metricsJmxContext) {
39      super(metricsName, metricsDescription, metricsContext, metricsJmxContext);
40    }
41  
42  
43    @Override
44    public void init() {
45      blanceClusterHisto = metricsRegistry.newTimeHistogram(BALANCE_CLUSTER);
46      miscCount = metricsRegistry.newCounter(MISC_INVOATION_COUNT, "", 0L);
47  
48    }
49  
50    @Override
51    public void updateBalanceCluster(long time) {
52      blanceClusterHisto.add(time);
53    }
54  
55    @Override
56    public void incrMiscInvocations() {
57       miscCount.incr();
58    }
59  }