org.apache.flink.runtime.jobgraph.JobVertexID Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
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* 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,
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*/
package org.apache.flink.runtime.jobgraph;
import org.apache.flink.runtime.topology.VertexID;
import org.apache.flink.util.AbstractID;
import org.apache.flink.util.StringUtils;
import org.apache.flink.shaded.netty4.io.netty.buffer.ByteBuf;
/** A class for statistically unique job vertex IDs. */
public class JobVertexID extends AbstractID implements VertexID {
private static final long serialVersionUID = 1L;
public JobVertexID() {
super();
}
public JobVertexID(byte[] bytes) {
super(bytes);
}
public JobVertexID(long lowerPart, long upperPart) {
super(lowerPart, upperPart);
}
public static JobVertexID fromHexString(String hexString) {
return new JobVertexID(StringUtils.hexStringToByte(hexString));
}
public void writeTo(ByteBuf buf) {
buf.writeLong(lowerPart);
buf.writeLong(upperPart);
}
public static JobVertexID fromByteBuf(ByteBuf buf) {
final long lower = buf.readLong();
final long upper = buf.readLong();
return new JobVertexID(lower, upper);
}
}