/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.chaos.policies;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.hbase.IntegrationTestingUtility;
import org.apache.hadoop.hbase.chaos.actions.Action;
import org.apache.hadoop.hbase.util.StoppableImplementation;
/**
* A policy to introduce chaos to the cluster
*/
public abstract class Policy extends StoppableImplementation implements Runnable {
protected static final Log LOG = LogFactory.getLog(Policy.class);
protected PolicyContext context;
public void init(PolicyContext context) throws Exception {
this.context = context;
// Used to wire up stopping.
context.setPolicy(this);
}
/**
* A context for a Policy
*/
public static class PolicyContext extends Action.ActionContext {
Policy policy = null;
public PolicyContext(IntegrationTestingUtility util) {
super(util);
}
@Override
public boolean isStopping() {
return policy.isStopped();
}
public void setPolicy(Policy policy) {
this.policy = policy;
}
}
}