/*
* 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.cloudstack.compute.loaders;
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 org.jclouds.compute.reference.ComputeServiceConstants;
import org.jclouds.logging.Logger;
import org.jclouds.cloudstack.CloudStackApi;
import org.jclouds.cloudstack.domain.SecurityGroup;
import org.jclouds.cloudstack.domain.ZoneAndName;
import org.jclouds.cloudstack.domain.ZoneSecurityGroupNamePortsCidrs;
import com.google.common.base.Function;
import com.google.common.cache.CacheLoader;
/**
*
* @author Adrian Cole
* @author Andrew Bayer
*/
public class FindSecurityGroupOrCreate extends CacheLoader<ZoneAndName, SecurityGroup> {
@Resource
@Named(ComputeServiceConstants.COMPUTE_LOGGER)
protected Logger logger = Logger.NULL;
protected final CloudStackApi client;
protected final Function<ZoneSecurityGroupNamePortsCidrs, SecurityGroup> groupCreator;
@Inject
public FindSecurityGroupOrCreate(CloudStackApi client,
Function<ZoneSecurityGroupNamePortsCidrs, SecurityGroup> groupCreator) {
this.client = checkNotNull(client, "client");
this.groupCreator = checkNotNull(groupCreator, "groupCreator");
}
@Override
public SecurityGroup load(ZoneAndName in) {
SecurityGroup group = client.getSecurityGroupApi().getSecurityGroupByName(in.getName());
if (group != null) {
return group;
} else {
return createNewSecurityGroup(in);
}
}
private SecurityGroup createNewSecurityGroup(ZoneAndName in) {
checkState(
checkNotNull(in, "ZoneSecurityGrioupNamePortsCidrs") instanceof ZoneSecurityGroupNamePortsCidrs,
"programming error: when issuing get to this cacheloader, you need to pass an instance of ZoneSecurityGroupNamePortsCidrs, not %s",
in);
ZoneSecurityGroupNamePortsCidrs zoneSecurityGroupNamePortsCidrs = ZoneSecurityGroupNamePortsCidrs.class.cast(in);
return groupCreator.apply(zoneSecurityGroupNamePortsCidrs);
}
@Override
public String toString() {
return "returnExistingSecurityGroupInZoneOrCreateAsNeeded()";
}
}