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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.binders;

import static shaded.com.google.common.base.Preconditions.checkArgument;
import static shaded.com.google.common.base.Preconditions.checkNotNull;
import static org.jclouds.gogrid.reference.GoGridQueryParams.NAME_KEY;

import org.jclouds.http.HttpRequest;
import org.jclouds.rest.Binder;

/**
 * Binds names to corresponding query parameters
 */
public class BindNamesToQueryParams implements Binder {

   /**
    * Binds the names to query parameters. The pattern, as specified by GoGrid's specification, is:
    * 
    * https://api.gogrid.com/api/grid/server/get ?name=My+Server &name=My+Server+2 &name=My+Server+3
    * &name=My+Server+4
    * 
    * @param request
    *           request where the query params will be set
    * @param input
    *           array of String params
    */
   @SuppressWarnings("unchecked")
   @Override
   public  R bindToRequest(R request, Object input) {
      checkArgument(checkNotNull(input, "input is null") instanceof String[],
               "this binder is only valid for String[] arguments");
      String[] names = (String[]) input;
      return (R) request.toBuilder().replaceQueryParam(NAME_KEY, names).build();
   }
}