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.rackspace.cloudloadbalancers.functions; import javax.annotation.Resource; import javax.inject.Inject; import org.jclouds.logging.Logger; import org.jclouds.rackspace.cloudloadbalancers.domain.AccessRuleWithId; import org.jclouds.rackspace.cloudloadbalancers.domain.LoadBalancer; import org.jclouds.rackspace.cloudloadbalancers.domain.LoadBalancer.Builder; import org.jclouds.rackspace.cloudloadbalancers.domain.Metadata; import org.jclouds.rackspace.cloudloadbalancers.domain.VirtualIPWithId; import com.google.common.base.Function; import com.google.common.collect.ImmutableSet; import com.google.common.collect.Iterables; import com.google.inject.assistedinject.Assisted; /** * @author Adrian Cole */ public class ConvertLB implements Function<LB, LoadBalancer> { public static interface Factory { ConvertLB createForRegion(String region); } @Resource protected Logger logger = Logger.NULL; private final String region; @Inject ConvertLB(@Assisted String region) { this.region = region.toUpperCase(); } @Override public LoadBalancer apply(LB lb) { try { Builder builder = LoadBalancer.builder().id(lb.id).region(region).status(lb.status).name(lb.getName()) .protocol(lb.getProtocol()).port(lb.getPort()).nodeCount(lb.nodeCount).nodes(lb.getNodes()) .timeout(lb.getTimeout()).algorithm(lb.getAlgorithm()).halfClosed(lb.isHalfClosed()) .sessionPersistenceType(lb.getSessionPersistenceType()) .connectionLogging(lb.isConnectionLogging()).connectionThrottle(lb.getConnectionThrottle()) .healthMonitor(lb.getHealthMonitor()); if (lb.cluster.size() == 1) builder.clusterName(Iterables.get(lb.cluster.values(), 0)); if (lb.created.size() == 1) builder.created(Iterables.get(lb.created.values(), 0)); if (lb.updated.size() == 1) builder.updated(Iterables.get(lb.updated.values(), 0)); if (lb.contentCaching.size() == 1) builder.contentCaching(Iterables.get(lb.contentCaching.values(), 0)); if (lb.sslTermination != null) builder.sslTermination(lb.sslTermination); if (lb.sourceAddresses != null) builder.sourceAddresses(lb.sourceAddresses); if (lb.accessList == null) builder.accessRules(ImmutableSet.<AccessRuleWithId>of()); else builder.accessRules(lb.accessList); if (lb.virtualIps == null) builder.virtualIPs(ImmutableSet.<VirtualIPWithId>of()); else builder.virtualIPs(lb.virtualIps); if (lb.metadata == null) builder.metadata(new Metadata()); else builder.metadata(ParseMetadata.transformCLBMetadataToMetadata(lb.metadata)); return builder.build(); } catch (NullPointerException e) { logger.warn(e, "nullpointer found parsing %s", lb); throw e; } } }