| /* |
| * 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.flink.runtime.jobgraph; |
| |
| import org.apache.flink.annotation.VisibleForTesting; |
| import org.apache.flink.runtime.executiongraph.IntermediateResultPartition; |
| import org.apache.flink.runtime.topology.ResultID; |
| |
| import org.apache.flink.shaded.netty4.io.netty.buffer.ByteBuf; |
| |
| /** Id identifying {@link IntermediateResultPartition}. */ |
| public class IntermediateResultPartitionID implements ResultID { |
| |
| private static final long serialVersionUID = 1L; |
| // Represent the number of bytes occupied when writes IntermediateResultPartitionID to the |
| // ByteBuf. |
| // It is the sum of two long types(lowerPart and upperPart of the intermediateDataSetID) and one |
| // int type(partitionNum). |
| private static final int BYTEBUF_LEN = 20; |
| |
| private final IntermediateDataSetID intermediateDataSetID; |
| private final int partitionNum; |
| |
| /** Creates an new random intermediate result partition ID for testing. */ |
| @VisibleForTesting |
| public IntermediateResultPartitionID() { |
| this.partitionNum = -1; |
| this.intermediateDataSetID = new IntermediateDataSetID(); |
| } |
| |
| /** |
| * Creates an new intermediate result partition ID with {@link IntermediateDataSetID} and the |
| * partitionNum. |
| */ |
| public IntermediateResultPartitionID( |
| IntermediateDataSetID intermediateDataSetID, int partitionNum) { |
| this.intermediateDataSetID = intermediateDataSetID; |
| this.partitionNum = partitionNum; |
| } |
| |
| public int getPartitionNumber() { |
| return partitionNum; |
| } |
| |
| public IntermediateDataSetID getIntermediateDataSetID() { |
| return intermediateDataSetID; |
| } |
| |
| public void writeTo(ByteBuf buf) { |
| intermediateDataSetID.writeTo(buf); |
| buf.writeInt(partitionNum); |
| } |
| |
| public static IntermediateResultPartitionID fromByteBuf(ByteBuf buf) { |
| final IntermediateDataSetID intermediateDataSetID = IntermediateDataSetID.fromByteBuf(buf); |
| final int partitionNum = buf.readInt(); |
| return new IntermediateResultPartitionID(intermediateDataSetID, partitionNum); |
| } |
| |
| public static int getByteBufLength() { |
| return BYTEBUF_LEN; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == this) { |
| return true; |
| } else if (obj != null && obj.getClass() == getClass()) { |
| IntermediateResultPartitionID that = (IntermediateResultPartitionID) obj; |
| return that.intermediateDataSetID.equals(this.intermediateDataSetID) |
| && that.partitionNum == this.partitionNum; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| return this.intermediateDataSetID.hashCode() ^ this.partitionNum; |
| } |
| |
| @Override |
| public String toString() { |
| return intermediateDataSetID.toString() + "#" + partitionNum; |
| } |
| } |