/*

  * 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.apache.giraph.conf;

 import org.apache.giraph.graph.GraphType;

 import org.apache.hadoop.conf.Configuration;

 /**

  * Enum Configuration option per user graph type (IVEMM)

  *

  * @param <T> Enum class

  */

 public class PerGraphTypeEnumConfOption<T extends Enum<T>> {

   /** option for vertex id */

   private final EnumConfOption<T> vertexId;

   /** option for vertex value */

   private final EnumConfOption<T> vertexValue;

   /** option for edge value */

   private final EnumConfOption<T> edgeValue;

   /** option for outgoing message */

   private final EnumConfOption<T> outgoingMessage;

   /**

    * Constructor

    *

    * @param keyPrefix Configuration key prefix

    * @param klass Enum class

    * @param defaultValue default value

    * @param description description of the option

    */

   public PerGraphTypeEnumConfOption(String keyPrefix, Class<T> klass,

       T defaultValue, String description) {

     vertexId = EnumConfOption.create(keyPrefix + ".vertex.id", klass,

         defaultValue, description);

     vertexValue = EnumConfOption.create(keyPrefix + ".vertex.value", klass,

         defaultValue, description);

     edgeValue = EnumConfOption.create(keyPrefix + ".edge.value",

         klass, defaultValue, description);

     outgoingMessage = EnumConfOption.create(keyPrefix + ".outgoing.message",

         klass, defaultValue, description);

   }

   /**

    * Create new EnumGraphTypeConfOption

    *

    * @param keyPrefix String configuration key prefix

    * @param klass enum class

    * @param defaultValue default enum value

    * @param description description of the option

    * @param <X> enum type

    * @return EnumConfOption

    */

   public static <X extends Enum<X>> PerGraphTypeEnumConfOption<X>

   create(String keyPrefix, Class<X> klass, X defaultValue, String description) {

     return new PerGraphTypeEnumConfOption<X>(keyPrefix, klass,

         defaultValue, description);

   }

   /**

    * Get option for given GraphType

    *

    * @param graphType GraphType

    * @return EnumConfOption for given graph type

    */

   public EnumConfOption<T> get(GraphType graphType) {

     switch (graphType) {

     case VERTEX_ID:

       return vertexId;

     case VERTEX_VALUE:

       return vertexValue;

     case EDGE_VALUE:

       return edgeValue;

     case OUTGOING_MESSAGE_VALUE:

       return outgoingMessage;

     default:

       throw new IllegalArgumentException(

           "Don't know how to handle GraphType " + graphType);

     }

   }

   /**

    * Set value for given GraphType

    *

    * @param conf Configuration

    * @param graphType GraphType

    * @param language Language

    */

   public void set(Configuration conf, GraphType graphType, T language) {

     get(graphType).set(conf, language);

   }

   public EnumConfOption<T> getEdgeValue() {

     return edgeValue;

   }

   public EnumConfOption<T> getOutgoingMessage() {

     return outgoingMessage;

   }

   public EnumConfOption<T> getVertexId() {

     return vertexId;

   }

   public EnumConfOption<T> getVertexValue() {

     return vertexValue;

   }

 }