/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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 com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.jclouds.gogrid.reference.GoGridQueryParams.NAME_KEY;

import javax.inject.Inject;
import javax.inject.Provider;
import javax.ws.rs.core.UriBuilder;

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

import com.google.common.collect.ImmutableList;

/**
 * Binds names to corresponding query parameters
 * 
 * @author Oleksiy Yarmula
 */
public class BindNamesToQueryParams implements Binder {
   private final Provider<UriBuilder> builder;

   @Inject
   BindNamesToQueryParams(Provider<UriBuilder> builder) {
      this.builder = builder;
   }

   /**
    * 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
    */
   @Override
   public <R extends HttpRequest> 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 ModifyRequest.addQueryParam(request, NAME_KEY, ImmutableList.copyOf(names), builder.get());
   }
}
