1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 package org.apache.giraph.block_app.framework.output; 19 20 import org.apache.giraph.block_app.framework.api.BlockOutputApi; 21 import org.apache.giraph.conf.GiraphConfiguration; 22 23 /** 24 * Block output option, with apis to use from application code 25 * 26 * @param <OD> Output description type 27 * @param <OW> Output writer type 28 */ 29 public class BlockOutputOption<OD extends BlockOutputDesc<OW>, 30 OW extends BlockOutputWriter> { 31 private final String key; 32 33 public BlockOutputOption(String key) { 34 this.key = key; 35 } 36 37 public String getKey() { 38 return key; 39 } 40 41 public void register(OD outputDesc, GiraphConfiguration conf) { 42 BlockOutputFormat.addOutputDesc(outputDesc, key, conf); 43 } 44 45 public OD getOutputDesc(BlockOutputApi outputApi) { 46 return outputApi.<OW, OD>getOutputDesc(key); 47 } 48 49 public OW getWriter(BlockOutputApi outputApi) { 50 return outputApi.getWriter(key); 51 } 52 }