| /** |
| * 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.dag.app.dag; |
| |
| import java.util.List; |
| |
| import org.apache.tez.runtime.api.events.DataMovementEvent; |
| import org.apache.tez.runtime.api.events.InputFailedEvent; |
| import org.apache.tez.runtime.api.events.InputReadErrorEvent; |
| |
| public abstract class EdgeManager { |
| |
| public abstract int getNumDestinationTaskInputs(int numSourceTasks, |
| int destinationTaskIndex); |
| |
| public abstract int getNumSourceTaskOutputs(int numDestinationTasks, |
| int sourceTaskIndex); |
| |
| /** |
| * Return the destination task indeces to which to send the event |
| */ |
| public abstract void routeEventToDestinationTasks(DataMovementEvent event, |
| int sourceTaskIndex, int numDestinationTasks, List<Integer> taskIndices); |
| |
| public abstract void routeEventToDestinationTasks(InputFailedEvent event, |
| int sourceTaskIndex, int numDestinationTasks, List<Integer> taskIndices); |
| |
| public abstract int getDestinationConsumerTaskNumber(int sourceTaskIndex, int numDestTasks); |
| |
| /** |
| * Return the source task index to which to send the event |
| */ |
| public abstract int routeEventToSourceTasks(int destinationTaskIndex, |
| InputReadErrorEvent event); |
| |
| } |