/*
* 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.ec2.compute.functions;
import static com.google.common.base.Preconditions.checkNotNull;
import java.util.NoSuchElementException;
import java.util.Set;
import javax.annotation.Resource;
import javax.inject.Named;
import javax.inject.Singleton;
import org.jclouds.collect.Memoized;
import org.jclouds.compute.domain.SecurityGroup;
import org.jclouds.compute.domain.SecurityGroupBuilder;
import org.jclouds.compute.reference.ComputeServiceConstants;
import org.jclouds.domain.Location;
import org.jclouds.logging.Logger;
import com.google.common.base.Function;
import com.google.common.base.Predicate;
import com.google.common.base.Supplier;
import com.google.common.collect.Iterables;
import com.google.inject.Inject;
/**
* A function for transforming an EC2-specific SecurityGroup into a generic
* SecurityGroup object.
*
* @author Andrew Bayer
*/
@Singleton
public class EC2SecurityGroupToSecurityGroup implements Function<org.jclouds.ec2.domain.SecurityGroup, SecurityGroup> {
@Resource
@Named(ComputeServiceConstants.COMPUTE_LOGGER)
protected Logger logger = Logger.NULL;
protected final Supplier<Set<? extends Location>> locations;
@Inject
public EC2SecurityGroupToSecurityGroup(@Memoized Supplier<Set<? extends Location>> locations) {
this.locations = checkNotNull(locations, "locations");
}
@Override
public SecurityGroup apply(org.jclouds.ec2.domain.SecurityGroup group) {
SecurityGroupBuilder builder = new SecurityGroupBuilder();
Location location = findLocationWithId(group.getRegion());
builder.location(location);
builder.id(group.getRegion() + "/" + idOrName(group));
builder.providerId(group.getId());
builder.name(group.getName());
builder.ipPermissions(group);
builder.ownerId(group.getOwnerId());
return builder.build();
}
protected String idOrName(org.jclouds.ec2.domain.SecurityGroup group) {
return group.getName();
}
private Location findLocationWithId(final String locationId) {
if (locationId == null)
return null;
try {
Location location = Iterables.find(locations.get(), new Predicate<Location>() {
@Override
public boolean apply(Location input) {
return input.getId().equals(locationId);
}
});
return location;
} catch (NoSuchElementException e) {
logger.debug("couldn't match instance location %s in: %s", locationId, locations.get());
return null;
}
}
}