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.metrics2.lib;
20
21 import org.apache.hadoop.hbase.classification.InterfaceAudience;
22 import org.apache.hadoop.metrics2.MetricsInfo;
23
24 /**
25 * Extended histogram implementation with counters for metric time ranges.
26 */
27 @InterfaceAudience.Private
28 public class MutableTimeHistogram extends MutableRangeHistogram {
29 private final static String RANGE_TYPE = "TimeRangeCount";
30 private final static long[] RANGES =
31 { 1, 3, 10, 30, 100, 300, 1000, 3000, 10000, 30000, 60000, 120000, 300000, 600000 };
32
33 public MutableTimeHistogram(MetricsInfo info) {
34 this(info.name(), info.description());
35 }
36
37 public MutableTimeHistogram(String name, String description) {
38 super(name, description);
39 }
40
41 @Override
42 public String getRangeType() {
43 return RANGE_TYPE;
44 }
45
46 @Override
47 public long[] getRanges() {
48 return RANGES;
49 }
50
51 }