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.googlecomputeengine.handlers; import static com.google.common.base.Preconditions.checkNotNull; import java.util.Map; import javax.inject.Inject; import org.jclouds.googlecomputeengine.domain.Metadata; import org.jclouds.http.HttpRequest; import org.jclouds.rest.MapBinder; import org.jclouds.rest.binders.BindToJsonPayload; import com.google.common.collect.ImmutableMap; public class MetadataBinder implements MapBinder { @Inject private BindToJsonPayload jsonBinder; /** * {@inheritDoc} */ @Override public <R extends HttpRequest> R bindToRequest(R request, Map<String, Object> postParams) { Map<String, String> items = ImmutableMap .copyOf((Map<String, String>) checkNotNull(postParams.get("items"), "item")); String fingerprint = (String) checkNotNull(postParams.get("fingerprint"), "fingerprint"); Metadata metadata = Metadata.builder().fingerprint(fingerprint).items(items).build(); return bindToRequest(request, metadata); } /** * {@inheritDoc} */ @Override public <R extends HttpRequest> R bindToRequest(R request, Object input) { return jsonBinder.bindToRequest(request, input); } }