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/**
 *
 * Copyright (C) 2010 Cloud Conscious, LLC. 
 *
 * ====================================================================
 * Licensed 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.aws.ec2.options;

import java.util.Arrays;
import java.util.Set;

import org.jclouds.aws.ec2.options.internal.BaseEC2RequestOptions;

/**
 * Contains options supported in the Form API for the DescribeAvailabilityZones operation. 
 * Usage The recommended way to instantiate a DescribeAvailabilityZonesOptions object is to
 * statically import DescribeAvailabilityZonesOptions.Builder.* and invoke a static creation method
 * followed by an instance mutator (if needed):
 * 
 * 
 * import static org.jclouds.aws.ec2.options.DescribeAvailabilityZonesOptions.Builder.*
 * 

 * EC2Client connection = // get connection
 * Future> images = connection.getAvailabilityZoneAndRegionServices().describeAvailabilityZones(zones("us-east-1a", "us-east-1b"));
 * 
 * 
 * @author Adrian Cole
 * @see 
 */
public class DescribeAvailabilityZonesOptions extends BaseEC2RequestOptions {

   /**
    * Availability Zone name.
    */
   public DescribeAvailabilityZonesOptions zones(String... zones) {
      String[] zoneStrings = Arrays.copyOf(zones, zones.length, String[].class);
      indexFormValuesWithPrefix("ZoneName", zoneStrings);
      return this;
   }

   public Set getZones() {
      return getFormValuesWithKeysPrefixedBy("ZoneName.");
   }

   public static class Builder {

      /**
       * @see DescribeAvailabilityZonesOptions#zones(String...)
       */
      public static DescribeAvailabilityZonesOptions availabilityZones(String... zones) {
         DescribeAvailabilityZonesOptions options = new DescribeAvailabilityZonesOptions();
         return options.zones(zones);
      }

   }
}