| /** |
| * Licensed to jclouds, Inc. (jclouds) under one or more |
| * contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. jclouds 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.rackspace.cloudloadbalancers.loadbalancer.strategy; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static com.google.common.collect.Iterables.concat; |
| import static com.google.common.collect.Iterables.transform; |
| import static org.jclouds.concurrent.FutureIterables.transformParallel; |
| |
| import java.util.Set; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Future; |
| |
| import javax.annotation.Resource; |
| import javax.inject.Inject; |
| import javax.inject.Named; |
| import javax.inject.Singleton; |
| |
| import org.jclouds.Constants; |
| import org.jclouds.loadbalancer.domain.LoadBalancerMetadata; |
| import org.jclouds.loadbalancer.reference.LoadBalancerConstants; |
| import org.jclouds.loadbalancer.strategy.ListLoadBalancersStrategy; |
| import org.jclouds.location.Zone; |
| import org.jclouds.logging.Logger; |
| import org.jclouds.rackspace.cloudloadbalancers.CloudLoadBalancersAsyncApi; |
| import org.jclouds.rackspace.cloudloadbalancers.domain.LoadBalancer; |
| |
| import com.google.common.base.Function; |
| import com.google.common.base.Supplier; |
| import com.google.common.util.concurrent.ListenableFuture; |
| |
| /** |
| * |
| * @author Adrian Cole |
| */ |
| @Singleton |
| public class CloudLoadBalancersListLoadBalancersStrategy implements ListLoadBalancersStrategy { |
| @Resource |
| @Named(LoadBalancerConstants.LOADBALANCER_LOGGER) |
| protected Logger logger = Logger.NULL; |
| |
| private final CloudLoadBalancersAsyncApi aclient; |
| private final Function<LoadBalancer, LoadBalancerMetadata> converter; |
| private final ExecutorService executor; |
| private final Supplier<Set<String>> zones; |
| |
| @Inject |
| protected CloudLoadBalancersListLoadBalancersStrategy(CloudLoadBalancersAsyncApi aclient, |
| Function<LoadBalancer, LoadBalancerMetadata> converter, |
| @Named(Constants.PROPERTY_USER_THREADS) ExecutorService executor, @Zone Supplier<Set<String>> zones) { |
| this.aclient = checkNotNull(aclient, "aclient"); |
| this.zones = checkNotNull(zones, "zones"); |
| this.converter = checkNotNull(converter, "converter"); |
| this.executor = checkNotNull(executor, "executor"); |
| } |
| |
| @Override |
| public Iterable<? extends LoadBalancerMetadata> listLoadBalancers() { |
| return transform(concat(transformParallel(zones.get(), new Function<String, Future<? extends Set<LoadBalancer>>>() { |
| |
| @Override |
| public ListenableFuture<Set<LoadBalancer>> apply(String from) { |
| return aclient.getLoadBalancerClient(from).listLoadBalancers(); |
| } |
| |
| }, executor, null, logger, "loadbalancers")), converter); |
| } |
| } |