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ComputeService implementation of GoGrid datacenters

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/*
 * 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.gogrid.functions;

import javax.inject.Inject;

import org.jclouds.gogrid.domain.ServerImage;
import org.jclouds.http.HttpResponse;

import com.google.common.base.Function;
import com.google.common.collect.Iterables;
import com.google.inject.Singleton;

@Singleton
public class ParseImageFromJsonResponse implements
      Function {
   private final ParseImageListFromJsonResponse parser;

   @Inject
   ParseImageFromJsonResponse(ParseImageListFromJsonResponse parser) {
      this.parser = parser;
   }

   @Override
   public ServerImage apply(HttpResponse arg0) {
      return Iterables.getOnlyElement(parser.apply(arg0));
   }

}