/**
* 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.whirr.actions;
import static org.jclouds.compute.predicates.NodePredicates.inGroup;
import java.io.IOException;
import java.util.Map;
import org.apache.whirr.ClusterSpec;
import org.apache.whirr.InstanceTemplate;
import org.apache.whirr.service.ClusterActionEvent;
import org.apache.whirr.service.ClusterActionHandler;
import org.jclouds.compute.ComputeService;
import org.jclouds.compute.ComputeServiceContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Function;
/**
* A {@link ClusterAction} for tearing down a running cluster and freeing up all
* its resources.
*/
public class DestroyClusterAction extends ScriptBasedClusterAction {
private static final Logger LOG = LoggerFactory
.getLogger(DestroyClusterAction.class);
public DestroyClusterAction(
final Function<ClusterSpec, ComputeServiceContext> getCompute,
final Map<String, ClusterActionHandler> handlerMap) {
super(getCompute, handlerMap);
}
@Override
protected String getAction() {
return ClusterActionHandler.DESTROY_ACTION;
}
@Override
protected void postRunScriptsActions(
Map<InstanceTemplate, ClusterActionEvent> eventMap) throws IOException {
ClusterSpec clusterSpec = eventMap.values().iterator().next()
.getClusterSpec();
LOG.info("Destroying " + clusterSpec.getClusterName() + " cluster");
ComputeService computeService = getCompute().apply(clusterSpec)
.getComputeService();
computeService.destroyNodesMatching(inGroup(clusterSpec.getClusterName()));
LOG.info("Cluster {} destroyed", clusterSpec.getClusterName());
}
}