Source code

001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.reef.io.data.output;
020
021import org.apache.reef.tang.formats.ConfigurationModule;
022import org.apache.reef.tang.formats.ConfigurationModuleBuilder;
023import org.apache.reef.tang.formats.RequiredImpl;
024import org.apache.reef.tang.formats.RequiredParameter;
025
026/**
027 * Builder to create a TaskOutputService object.
028 */
029public final class TaskOutputServiceBuilder extends ConfigurationModuleBuilder {
030
031  /**
032   * A provider through which users create task output streams.
033   */
034  public static final RequiredImpl<TaskOutputStreamProvider> TASK_OUTPUT_STREAM_PROVIDER = new RequiredImpl<>();
035
036  /**
037   * Path of the directory where output files are created.
038   */
039  public static final RequiredParameter<String> OUTPUT_PATH = new RequiredParameter<>();
040
041  public static final ConfigurationModule CONF = new TaskOutputServiceBuilder()
042      .bindImplementation(OutputService.class, TaskOutputService.class)
043      .bindImplementation(TaskOutputStreamProvider.class, TASK_OUTPUT_STREAM_PROVIDER)
044      .bindNamedParameter(TaskOutputService.OutputPath.class, OUTPUT_PATH)
045      .build();
046}