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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.vcloud.domain;

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.base.CaseFormat;

/**
 * The MappingMode element specifies how IP address mapping is implemented by the NAT service.
 * 
 */
public enum MappingMode {
   /**
    * the external IP address is specified in the ExternalIP element
    */
   MANUAL,
   /**
    * the external IP address is assigned automatically
    */
   AUTOMATIC, UNRECOGNIZED;

   public String value() {
      return CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.LOWER_CAMEL, name());
   }

   @Override
   public String toString() {
      return value();
   }

   public static MappingMode fromValue(String mode) {
      try {
         return valueOf(CaseFormat.LOWER_CAMEL.to(CaseFormat.UPPER_UNDERSCORE, checkNotNull(mode, "mode")));
      } catch (IllegalArgumentException e) {
         return UNRECOGNIZED;
      }
   }

}