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1   /**
2    *
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *     http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the License is distributed on an "AS IS" BASIS,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the License for the specific language governing permissions and
17   * limitations under the License.
18   */
19  package org.apache.hadoop.hbase.regionserver.wal;
20  
21  import org.apache.commons.logging.Log;
22  import org.apache.commons.logging.LogFactory;
23  import org.apache.hadoop.hbase.classification.InterfaceAudience;
24  import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
25  import org.apache.hadoop.util.StringUtils;
26  
27  /**
28   * Class used to push numbers about WAL edits replay into the metrics subsystem. This will take a
29   * single function call and turn it into multiple manipulations of the hadoop metrics system.
30   */
31  @InterfaceAudience.Private
32  public class MetricsWALEditsReplay {
33    static final Log LOG = LogFactory.getLog(MetricsWALEditsReplay.class);
34  
35    private final MetricsEditsReplaySource source;
36  
37    public MetricsWALEditsReplay() {
38      source = CompatibilitySingletonFactory.getInstance(MetricsEditsReplaySource.class);
39    }
40  
41    /**
42     * Add the time a replay command took
43     */
44    void updateReplayTime(long time) {
45      source.updateReplayTime(time);
46    }
47  
48    /**
49     * Add the batch size of each replay
50     */
51    void updateReplayBatchSize(long size) {
52      source.updateReplayDataSize(size);
53    }
54  
55    /**
56     * Add the payload data size of each replay
57     */
58    void updateReplayDataSize(long size) {
59    }
60  }