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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.replication.regionserver;
20  
21  import org.apache.hadoop.metrics2.lib.MetricMutableCounterLong;
22  import org.apache.hadoop.metrics2.lib.MetricMutableGaugeLong;
23  
24  public class MetricsReplicationSinkSourceImpl implements MetricsReplicationSinkSource {
25  
26    private final MetricMutableGaugeLong ageGauge;
27    private long ageOfLastApplied; // Hadoop 1 metrics don't let you read from gauges
28    private final MetricMutableCounterLong batchesCounter;
29    private final MetricMutableCounterLong opsCounter;
30  
31    public MetricsReplicationSinkSourceImpl(MetricsReplicationSourceImpl rms) {
32      ageGauge = rms.getMetricsRegistry().getLongGauge(SINK_AGE_OF_LAST_APPLIED_OP, 0L);
33      batchesCounter = rms.getMetricsRegistry().getLongCounter(SINK_APPLIED_BATCHES, 0L);
34      opsCounter = rms.getMetricsRegistry().getLongCounter(SINK_APPLIED_OPS, 0L);
35    }
36  
37    @Override public void setLastAppliedOpAge(long age) {
38      ageGauge.set(age);
39      ageOfLastApplied = age;
40    }
41  
42    @Override public void incrAppliedBatches(long batches) {
43      batchesCounter.incr(batches);
44    }
45  
46    @Override public void incrAppliedOps(long batchsize) {
47      opsCounter.incr(batchsize);
48    }
49  
50    @Override
51    public long getLastAppliedOpAge() {
52      return ageOfLastApplied;
53    }
54  }