View Javadoc

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.chaos.policies;
20  
21  import java.util.Arrays;
22  import java.util.List;
23  
24  /** A policy that runs multiple other policies one after the other */
25  public class CompositeSequentialPolicy extends Policy {
26    private List<Policy> policies;
27    public CompositeSequentialPolicy(Policy... policies) {
28      this.policies = Arrays.asList(policies);
29    }
30  
31    @Override
32    public void stop(String why) {
33      super.stop(why);
34      for (Policy p : policies) {
35        p.stop(why);
36      }
37    }
38  
39    @Override
40    public void run() {
41      for (Policy p : policies) {
42        p.run();
43      }
44    }
45  
46    @Override
47    public void init(PolicyContext context) throws Exception {
48      super.init(context);
49      for (Policy p : policies) {
50        p.init(context);
51      }
52    }
53  }