/*
* 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.functions;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Predicates.and;
import static com.google.common.collect.Iterables.find;
import static org.jclouds.cloudstack.options.AssociateIPAddressOptions.Builder.networkId;
import static org.jclouds.cloudstack.options.ListPublicIPAddressesOptions.Builder.allocatedOnly;
import static org.jclouds.cloudstack.predicates.PublicIPAddressPredicates.associatedWithNetwork;
import static org.jclouds.cloudstack.predicates.PublicIPAddressPredicates.available;
import static org.jclouds.compute.reference.ComputeServiceConstants.COMPUTE_LOGGER;
import java.util.NoSuchElementException;
import javax.annotation.Resource;
import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;
import org.jclouds.cloudstack.CloudStackApi;
import org.jclouds.cloudstack.domain.AsyncCreateResponse;
import org.jclouds.cloudstack.domain.Network;
import org.jclouds.cloudstack.domain.PublicIPAddress;
import org.jclouds.cloudstack.features.AddressApi;
import org.jclouds.cloudstack.strategy.BlockUntilJobCompletesAndReturnResult;
import org.jclouds.logging.Logger;
import com.google.common.base.Function;
/**
*
* @author Adrian Cole
*/
@Singleton
public class ReuseOrAssociateNewPublicIPAddress implements Function<Network, PublicIPAddress> {
private final CloudStackApi client;
private final BlockUntilJobCompletesAndReturnResult blockUntilJobCompletesAndReturnResult;
@Resource
@Named(COMPUTE_LOGGER)
protected Logger logger = Logger.NULL;
@Inject
public ReuseOrAssociateNewPublicIPAddress(CloudStackApi client,
BlockUntilJobCompletesAndReturnResult blockUntilJobCompletesAndReturnResult) {
this.client = checkNotNull(client, "client");
this.blockUntilJobCompletesAndReturnResult = checkNotNull(blockUntilJobCompletesAndReturnResult,
"blockUntilJobCompletesAndReturnResult");
}
/**
* Finds existing addresses who are ready for use and not assigned to a
* machine.
*
* @param networkId
* network id to search
* @param client
* address client
* @return address to use
* @throws NoSuchElementException
* if there's no existing ip address that is free for use
*/
public static PublicIPAddress findAvailableAndAssociatedWithNetwork(String networkId, AddressApi client) {
return find(client.listPublicIPAddresses(allocatedOnly(true).networkId(networkId)),
and(associatedWithNetwork(networkId), available()));
}
public static PublicIPAddress associateIPAddressInNetwork(Network network, CloudStackApi client,
BlockUntilJobCompletesAndReturnResult blockUntilJobCompletesAndReturnResult) {
AsyncCreateResponse job = client.getAddressApi().associateIPAddressInZone(network.getZoneId(),
networkId(network.getId()));
PublicIPAddress ip = blockUntilJobCompletesAndReturnResult.<PublicIPAddress> apply(job);
assert ip.getZoneId().equals(network.getZoneId());
return ip;
}
@Override
public PublicIPAddress apply(Network input) {
try {
logger.debug(">> looking for existing address in network(%s)", input.getId());
PublicIPAddress returnVal = findAvailableAndAssociatedWithNetwork(input.getId(), client.getAddressApi());
logger.debug("<< reused address(%s)", returnVal.getId());
return returnVal;
} catch (NoSuchElementException e) {
logger.debug(">> associating new address in network(%s)", input.getId());
PublicIPAddress returnVal = associateIPAddressInNetwork(input, client, blockUntilJobCompletesAndReturnResult);
logger.debug("<< associated address(%s)", returnVal.getId());
return returnVal;
}
}
}