Java tutorial
/* * 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.cloudsigma.functions; import java.util.Map; import javax.annotation.Resource; import javax.inject.Singleton; import org.jclouds.cloudsigma.domain.StaticIPInfo; import org.jclouds.logging.Logger; import com.google.common.base.Function; import com.google.common.base.Splitter; /** * * @author Adrian Cole */ @Singleton public class MapToStaticIPInfo implements Function<Map<String, String>, StaticIPInfo> { @Resource protected Logger logger = Logger.NULL; @Override public StaticIPInfo apply(Map<String, String> from) { if (from.size() == 0) return null; if (from.size() == 0) return null; StaticIPInfo.Builder builder = new StaticIPInfo.Builder(); builder.ip(from.get("resource")); builder.user(from.get("user")); builder.netmask(from.get("netmask")); builder.nameservers(Splitter.on(' ').split(from.get("nameserver"))); builder.gateway(from.get("gateway")); try { return builder.build(); } catch (NullPointerException e) { logger.trace("entry missing data: %s; %s", e.getMessage(), from); return null; } } }