Java tutorial
/** * 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.elb.loadbalancer.functions; import java.util.Set; import javax.inject.Inject; import javax.inject.Singleton; import org.jclouds.collect.Memoized; import org.jclouds.domain.Location; import org.jclouds.elb.domain.regionscoped.LoadBalancerInRegion; import org.jclouds.loadbalancer.domain.LoadBalancerMetadata; import org.jclouds.loadbalancer.domain.LoadBalancerType; import org.jclouds.loadbalancer.domain.internal.LoadBalancerMetadataImpl; import com.google.common.base.Function; import com.google.common.base.Predicate; import com.google.common.base.Supplier; import com.google.common.collect.ImmutableMap; import com.google.common.collect.ImmutableSet; import com.google.common.collect.Iterables; /** * * @author Adrian Cole */ @Singleton public class LoadBalancerToLoadBalancerMetadata implements Function<LoadBalancerInRegion, LoadBalancerMetadata> { protected final Supplier<Set<? extends Location>> locations; @Inject public LoadBalancerToLoadBalancerMetadata(@Memoized Supplier<Set<? extends Location>> locations) { this.locations = locations; } @Override public LoadBalancerMetadata apply(LoadBalancerInRegion input) { Location location = findLocationWithId(input.getRegion()); return new LoadBalancerMetadataImpl(LoadBalancerType.LB, input.getName(), input.getName(), input.slashEncode(), location, null, ImmutableMap.<String, String>of(), ImmutableSet.of(input.getLoadBalancer().getDnsName())); } private Location findLocationWithId(final String locationId) { return Iterables.find(locations.get(), new Predicate<Location>() { @Override public boolean apply(Location input) { return input.getId().equals(locationId); } }); } }