| /** |
| * 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.tez.engine.lib.input; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.tez.common.TezUtils; |
| import org.apache.tez.engine.api.Event; |
| import org.apache.tez.engine.api.LogicalInput; |
| import org.apache.tez.engine.api.TezInputContext; |
| import org.apache.tez.engine.common.localshuffle.LocalShuffle; |
| |
| /** |
| * <code>LocalMergedInput</code> in an {@link LogicalInput} which shuffles intermediate |
| * sorted data, merges them and provides key/<values> to the consumer. |
| */ |
| public class LocalMergedInput extends ShuffledMergedInputLegacy { |
| |
| @Override |
| public List<Event> initialize(TezInputContext inputContext) throws IOException { |
| this.inputContext = inputContext; |
| this.conf = TezUtils.createConfFromUserPayload(inputContext.getUserPayload()); |
| |
| LocalShuffle localShuffle = new LocalShuffle(inputContext, conf, numInputs); |
| rawIter = localShuffle.run(); |
| createValuesIterator(); |
| return Collections.emptyList(); |
| } |
| |
| @Override |
| public List<Event> close() throws IOException { |
| rawIter.close(); |
| return Collections.emptyList(); |
| } |
| } |