001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.chaos.policies;
019
020import java.util.Arrays;
021import java.util.List;
022
023/** A policy that runs multiple other policies one after the other */
024public class CompositeSequentialPolicy extends Policy {
025  private final List<Policy> policies;
026
027  public CompositeSequentialPolicy(Policy... policies) {
028    this.policies = Arrays.asList(policies);
029  }
030
031  @Override
032  public void stop(String why) {
033    super.stop(why);
034    for (Policy p : policies) {
035      p.stop(why);
036    }
037  }
038
039  @Override
040  public void run() {
041    for (Policy p : policies) {
042      p.run();
043    }
044  }
045
046  @Override
047  public void init(PolicyContext context) throws Exception {
048    super.init(context);
049    for (Policy p : policies) {
050      p.init(context);
051    }
052  }
053}