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.rest.binders; import static com.google.common.base.Preconditions.checkArgument; import static com.google.common.base.Preconditions.checkNotNull; import static com.google.common.net.InternetDomainName.from; import static com.google.common.net.InternetDomainName.isValid; import static org.jclouds.http.Uris.uriBuilder; import javax.inject.Singleton; import org.jclouds.http.HttpRequest; import org.jclouds.rest.Binder; import com.google.common.net.InternetDomainName; /** * * @author Adrian Cole */ @Singleton public class BindAsHostPrefix implements Binder { @Override @SuppressWarnings("unchecked") public <R extends HttpRequest> R bindToRequest(R request, Object payload) { checkNotNull(payload, "hostprefix"); checkArgument(isValid(request.getEndpoint().getHost()), "this is only valid for hostnames: " + request); InternetDomainName name = from(request.getEndpoint().getHost()).child(payload.toString()); return (R) request.toBuilder().endpoint(uriBuilder(request.getEndpoint()).host(name.name()).build()) .build(); } }