/*
* 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.provisionr.amazon.activities;
import com.amazonaws.services.ec2.AmazonEC2;
import com.amazonaws.services.ec2.model.TerminateInstancesRequest;
import com.google.common.base.Optional;
import java.util.List;
import org.activiti.engine.delegate.DelegateExecution;
import org.apache.provisionr.amazon.ProcessVariables;
import org.apache.provisionr.amazon.core.ProviderClientCache;
import org.apache.provisionr.api.pool.Pool;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Terminate instances previously started by {@see RunOnDemandInstances}
*/
public class TerminateInstances extends AmazonActivity {
private static final Logger LOG = LoggerFactory.getLogger(TerminateInstances.class);
public TerminateInstances(ProviderClientCache cache) {
super(cache);
}
@Override
public void execute(AmazonEC2 client, Pool pool, DelegateExecution execution) {
@SuppressWarnings("unchecked")
Optional<List<String>> instanceIds =
Optional.fromNullable((List<String>) execution.getVariable(ProcessVariables.INSTANCE_IDS));
LOG.info(">> Terminating instances: {}", instanceIds);
if (instanceIds.isPresent() && instanceIds.get().size() > 0) {
client.terminateInstances(new TerminateInstancesRequest().withInstanceIds(instanceIds.get()));
}
}
}