/*
* 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.DescribeInstancesRequest;
import com.amazonaws.services.ec2.model.DescribeInstancesResult;
import com.amazonaws.services.ec2.model.Instance;
import com.google.common.base.Function;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.collect.Lists;
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.Machine;
import org.apache.provisionr.api.pool.Pool;
import org.apache.provisionr.core.CoreProcessVariables;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Use the IDs to retrieve details about the running machines and
* store them as a process variable (machines)
*
* @see Machine
*/
public class PublishListOfMachines extends AmazonActivity {
public static final Logger LOG = LoggerFactory.getLogger(PublishListOfMachines.class);
public PublishListOfMachines(ProviderClientCache providerClientCache) {
super(providerClientCache);
}
@Override
public void execute(AmazonEC2 client, Pool pool, DelegateExecution execution) throws Exception {
@SuppressWarnings("unchecked")
List<String> instanceIds = (List<String>) execution.getVariable(ProcessVariables.INSTANCE_IDS);
checkNotNull(instanceIds, "%s not found as a process variable", ProcessVariables.INSTANCE_IDS);
LOG.info(">> Describing instances {}", instanceIds);
DescribeInstancesResult result = client.describeInstances(new DescribeInstancesRequest()
.withInstanceIds(instanceIds));
LOG.info("<< Got the following reservations: {}", result.getReservations());
List<Instance> instances = collectInstancesFromReservations(result.getReservations());
List<Machine> machines = Lists.transform(instances,
new Function<Instance, Machine>() {
@Override
public Machine apply(Instance instance) {
return Machine.builder()
.externalId(instance.getInstanceId())
.publicDnsName(instance.getPublicDnsName())
.publicIp(instance.getPublicIpAddress())
.privateDnsName(instance.getPrivateDnsName())
.privateIp(instance.getPrivateIpAddress())
.createMachine();
}
});
/* Create a new ArrayList to force evaluation for lazy collections */
execution.setVariable(CoreProcessVariables.MACHINES, Lists.newArrayList(machines));
}
}