| /** |
| * 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.broadcast.input; |
| |
| import java.util.List; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.tez.dag.api.TezUncheckedException; |
| import org.apache.tez.engine.api.Event; |
| import org.apache.tez.engine.api.TezInputContext; |
| import org.apache.tez.engine.api.events.DataMovementEvent; |
| import org.apache.tez.engine.api.events.InputFailedEvent; |
| import org.apache.tez.engine.common.InputAttemptIdentifier; |
| import org.apache.tez.engine.common.shuffle.impl.ShuffleInputEventHandler; |
| import org.apache.tez.engine.common.shuffle.newimpl.ShuffleUserPayloads.DataMovementEventPayloadProto; |
| |
| import com.google.common.base.Preconditions; |
| import com.google.protobuf.InvalidProtocolBufferException; |
| |
| public class BroadcastShuffleInputEventHandler { |
| |
| private static final Log LOG = LogFactory.getLog(ShuffleInputEventHandler.class); |
| |
| private final BroadcastShuffleManager shuffleManager; |
| |
| public BroadcastShuffleInputEventHandler(TezInputContext inputContext, BroadcastShuffleManager shuffleManager) { |
| this.shuffleManager = shuffleManager; |
| } |
| |
| public void handleEvents(List<Event> events) { |
| for (Event event : events) { |
| handleEvent(event); |
| } |
| } |
| |
| private void handleEvent(Event event) { |
| if (event instanceof DataMovementEvent) { |
| processDataMovementEvent((DataMovementEvent)event); |
| } else if (event instanceof InputFailedEvent) { |
| processInputFailedEvent((InputFailedEvent)event); |
| } else { |
| throw new TezUncheckedException("Unexpected event type: " + event.getClass().getName()); |
| } |
| } |
| |
| |
| private void processDataMovementEvent(DataMovementEvent dme) { |
| Preconditions.checkArgument(dme.getSourceIndex() == 0, |
| "Unexpected srcIndex: " + dme.getSourceIndex() |
| + " on DataMovementEvent. Can only be 0"); |
| DataMovementEventPayloadProto shufflePayload; |
| try { |
| shufflePayload = DataMovementEventPayloadProto.parseFrom(dme.getUserPayload()); |
| } catch (InvalidProtocolBufferException e) { |
| throw new TezUncheckedException("Unable to parse DataMovementEvent payload", e); |
| } |
| if (shufflePayload.getOutputGenerated()) { |
| InputAttemptIdentifier srcAttemptIdentifier = new InputAttemptIdentifier(dme.getTargetIndex(), dme.getVersion(), shufflePayload.getPathComponent()); |
| shuffleManager.addKnownInput(shufflePayload.getHost(), shufflePayload.getPort(), srcAttemptIdentifier, 0); |
| } else { |
| shuffleManager.addCompletedInputWithNoData(new InputAttemptIdentifier(dme.getTargetIndex(), dme.getVersion())); |
| } |
| } |
| |
| private void processInputFailedEvent(InputFailedEvent ife) { |
| InputAttemptIdentifier srcAttemptIdentifier = new InputAttemptIdentifier(ife.getTargetIndex(), ife.getVersion()); |
| shuffleManager.obsoleteKnownInput(srcAttemptIdentifier); |
| } |
| } |
| |