| /* |
| * 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.runtime.topology.ResultID; |
| import org.apache.flink.util.AbstractID; |
| |
| import org.apache.flink.shaded.netty4.io.netty.buffer.ByteBuf; |
| |
| import java.util.UUID; |
| |
| /** Id identifying {@link IntermediateDataSet}. */ |
| public class IntermediateDataSetID extends AbstractID implements ResultID { |
| |
| private static final long serialVersionUID = 1L; |
| |
| /** Creates an new random intermediate data set ID. */ |
| public IntermediateDataSetID() { |
| super(); |
| } |
| |
| /** |
| * Creates a new intermediate data set ID with the bytes of the given ID. |
| * |
| * @param from The ID to create this ID from. |
| */ |
| public IntermediateDataSetID(AbstractID from) { |
| super(from); |
| } |
| |
| /** |
| * Creates a new intermediate data set ID with the bytes of the given UUID. |
| * |
| * @param from The UUID to create this ID from. |
| */ |
| public IntermediateDataSetID(UUID from) { |
| super(from.getLeastSignificantBits(), from.getMostSignificantBits()); |
| } |
| |
| private IntermediateDataSetID(long lower, long upper) { |
| super(lower, upper); |
| } |
| |
| public void writeTo(ByteBuf buf) { |
| buf.writeLong(lowerPart); |
| buf.writeLong(upperPart); |
| } |
| |
| public static IntermediateDataSetID fromByteBuf(ByteBuf buf) { |
| final long lower = buf.readLong(); |
| final long upper = buf.readLong(); |
| return new IntermediateDataSetID(lower, upper); |
| } |
| } |