/*

  * 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.block_app.framework.output;

 import org.apache.giraph.block_app.framework.api.BlockOutputApi;

 import org.apache.giraph.conf.GiraphConfiguration;

 /**

  * Block output option, with apis to use from application code

  *

  * @param <OD> Output description type

  * @param <OW> Output writer type

  */

 public class BlockOutputOption<OD extends BlockOutputDesc<OW>,

     OW extends BlockOutputWriter> {

   private final String key;

   public BlockOutputOption(String key) {

     this.key = key;

   }

   public String getKey() {

     return key;

   }

   public void register(OD outputDesc, GiraphConfiguration conf) {

     BlockOutputFormat.addOutputDesc(outputDesc, key, conf);

   }

   public OD getOutputDesc(BlockOutputApi outputApi) {

     return outputApi.<OW, OD>getOutputDesc(key);

   }

   public OW getWriter(BlockOutputApi outputApi) {

     return outputApi.getWriter(key);

   }

 }