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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;
20  
21  import org.apache.hadoop.hbase.metrics.BaseSourceImpl;
22  import org.apache.hadoop.metrics2.lib.MetricMutableHistogram;
23  
24  public class MetricsSnapshotSourceImpl extends BaseSourceImpl implements MetricsSnapshotSource {
25  
26    private MetricMutableHistogram snapshotTimeHisto;
27    private MetricMutableHistogram snapshotCloneTimeHisto;
28    private MetricMutableHistogram snapshotRestoreTimeHisto;
29  
30    public MetricsSnapshotSourceImpl() {
31      this(METRICS_NAME, METRICS_DESCRIPTION, METRICS_CONTEXT, METRICS_JMX_CONTEXT);
32    }
33  
34    public MetricsSnapshotSourceImpl(String metricsName,
35                                     String metricsDescription,
36                                     String metricsContext, String metricsJmxContext) {
37      super(metricsName, metricsDescription, metricsContext, metricsJmxContext);
38    }
39  
40    @Override
41    public void init() {
42      snapshotTimeHisto = metricsRegistry.newHistogram(
43          SNAPSHOT_TIME_NAME, SNAPSHOT_TIME_DESC);
44      snapshotCloneTimeHisto = metricsRegistry.newHistogram(
45          SNAPSHOT_CLONE_TIME_NAME, SNAPSHOT_CLONE_TIME_DESC);
46      snapshotRestoreTimeHisto = metricsRegistry.newHistogram(
47          SNAPSHOT_RESTORE_TIME_NAME, SNAPSHOT_RESTORE_TIME_DESC);
48    }
49  
50    @Override
51    public void updateSnapshotTime(long time) {
52      snapshotTimeHisto.add(time);
53    }
54  
55    @Override
56    public void updateSnapshotCloneTime(long time) {
57      snapshotCloneTimeHisto.add(time);
58    }
59  
60    @Override
61    public void updateSnapshotRestoreTime(long time) {
62      snapshotRestoreTimeHisto.add(time);
63    }
64  }