/*
* 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.jclouds.aws.ec2.functions;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import javax.annotation.Resource;
import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;
import org.jclouds.aws.AWSResponseException;
import org.jclouds.aws.ec2.AWSEC2Client;
import org.jclouds.aws.ec2.domain.PlacementGroup;
import org.jclouds.aws.ec2.domain.PlacementGroup.State;
import org.jclouds.compute.reference.ComputeServiceConstants;
import org.jclouds.ec2.compute.domain.RegionAndName;
import org.jclouds.logging.Logger;
import com.google.common.base.Predicate;
import com.google.common.cache.CacheLoader;
/**
*
* @author Adrian Cole
*/
@Singleton
public class CreatePlacementGroupIfNeeded extends CacheLoader<RegionAndName, String> {
@Resource
@Named(ComputeServiceConstants.COMPUTE_LOGGER)
protected Logger logger = Logger.NULL;
protected final AWSEC2Client ec2Client;
protected final Predicate<PlacementGroup> placementGroupAvailable;
@Inject
public CreatePlacementGroupIfNeeded(AWSEC2Client ec2Client,
@Named("AVAILABLE") Predicate<PlacementGroup> placementGroupAvailable) {
this.ec2Client = ec2Client;
this.placementGroupAvailable = placementGroupAvailable;
}
@Override
public String load(RegionAndName from) {
createPlacementGroupInRegion(from.getRegion(), from.getName());
return from.getName();
}
private void createPlacementGroupInRegion(String region, String name) {
checkNotNull(region, "region");
checkNotNull(name, "name");
logger.debug(">> creating placementGroup region(%s) name(%s)", region, name);
try {
ec2Client.getPlacementGroupServices().createPlacementGroupInRegion(region, name);
logger.debug("<< created placementGroup(%s)", name);
checkState(placementGroupAvailable.apply(new PlacementGroup(region, name, "cluster", State.PENDING)), String
.format("placementGroup region(%s) name(%s) failed to become available", region, name));
} catch (AWSResponseException e) {
if (e.getError().getCode().equals("InvalidPlacementGroup.Duplicate")) {
logger.debug("<< reused placementGroup(%s)", name);
} else {
throw e;
}
}
}
}