| /* |
| * 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.openstack.nova.v2_0.compute.loaders; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| |
| import com.google.common.base.Function; |
| import org.jclouds.openstack.nova.v2_0.NovaApi; |
| import org.jclouds.openstack.nova.v2_0.domain.FloatingIP; |
| import org.jclouds.openstack.nova.v2_0.domain.FloatingIpForServer; |
| import org.jclouds.openstack.nova.v2_0.domain.regionscoped.RegionAndId; |
| import org.jclouds.openstack.nova.v2_0.extensions.FloatingIPApi; |
| |
| import com.google.common.base.Optional; |
| import com.google.common.base.Predicate; |
| import com.google.common.cache.CacheLoader; |
| import com.google.common.collect.ImmutableSet; |
| |
| /** |
| * Each region may or may not have the floating ip function present. In order to safely proceed, we |
| * must allow the user to determine if a region has floating ip services before attempting to use |
| * them. |
| */ |
| @Singleton |
| public class LoadFloatingIpsForInstance extends CacheLoader<RegionAndId, Iterable<? extends FloatingIpForServer>> { |
| private final NovaApi api; |
| |
| @Inject |
| public LoadFloatingIpsForInstance(NovaApi api) { |
| this.api = api; |
| } |
| |
| @Override |
| public Iterable<? extends FloatingIpForServer> load(final RegionAndId key) throws Exception { |
| String region = key.getRegion(); |
| Optional<? extends FloatingIPApi> ipApiOptional = api.getFloatingIPApi(region); |
| if (ipApiOptional.isPresent()) { |
| return ipApiOptional.get().list().filter( |
| new Predicate<FloatingIP>() { |
| @Override |
| public boolean apply(FloatingIP input) { |
| return key.getId().equals(input.getInstanceId()); |
| } |
| }) |
| .transform(new Function<FloatingIP, FloatingIpForServer>() { |
| @Override |
| public FloatingIpForServer apply(FloatingIP input) { |
| return FloatingIpForServer.create(key, input.getId(), input.getIp()); |
| } |
| }); |
| } |
| return ImmutableSet.of(); |
| } |
| } |