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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.util;
20  
21  import org.apache.hadoop.classification.InterfaceAudience;
22  
23  /**
24   * An environment edge that uses a manually set value. This is useful for testing events that are supposed to
25   * happen in the same millisecond.
26   */
27  @InterfaceAudience.Private
28  public class ManualEnvironmentEdge implements EnvironmentEdge {
29  
30    // Sometimes 0 ts might have a special value, so lets start with 1
31    protected long value = 1L;
32  
33    public void setValue(long newValue) {
34      value = newValue;
35    }
36  
37    public void incValue(long addedValue) {
38      value += addedValue;
39    }
40  
41    @Override
42    public long currentTimeMillis() {
43      return this.value;
44    }
45  }