spark RegisterExecutor 源码
spark RegisterExecutor 代码
文件路径:/common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/protocol/RegisterExecutor.java
/*
* 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.spark.network.shuffle.protocol;
import java.util.Objects;
import io.netty.buffer.ByteBuf;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import org.apache.spark.network.protocol.Encoders;
// Needed by ScalaDoc. See SPARK-7726
import static org.apache.spark.network.shuffle.protocol.BlockTransferMessage.Type;
/**
* Initial registration message between an executor and its local shuffle server.
* Returns nothing (empty byte array).
*/
public class RegisterExecutor extends BlockTransferMessage {
public final String appId;
public final String execId;
public final ExecutorShuffleInfo executorInfo;
public RegisterExecutor(
String appId,
String execId,
ExecutorShuffleInfo executorInfo) {
this.appId = appId;
this.execId = execId;
this.executorInfo = executorInfo;
}
@Override
protected Type type() { return Type.REGISTER_EXECUTOR; }
@Override
public int hashCode() {
return Objects.hash(appId, execId, executorInfo);
}
@Override
public String toString() {
return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE)
.append("appId", appId)
.append("execId", execId)
.append("executorInfo", executorInfo)
.toString();
}
@Override
public boolean equals(Object other) {
if (other instanceof RegisterExecutor) {
RegisterExecutor o = (RegisterExecutor) other;
return Objects.equals(appId, o.appId)
&& Objects.equals(execId, o.execId)
&& Objects.equals(executorInfo, o.executorInfo);
}
return false;
}
@Override
public int encodedLength() {
return Encoders.Strings.encodedLength(appId)
+ Encoders.Strings.encodedLength(execId)
+ executorInfo.encodedLength();
}
@Override
public void encode(ByteBuf buf) {
Encoders.Strings.encode(buf, appId);
Encoders.Strings.encode(buf, execId);
executorInfo.encode(buf);
}
public static RegisterExecutor decode(ByteBuf buf) {
String appId = Encoders.Strings.decode(buf);
String execId = Encoders.Strings.decode(buf);
ExecutorShuffleInfo executorShuffleInfo = ExecutorShuffleInfo.decode(buf);
return new RegisterExecutor(appId, execId, executorShuffleInfo);
}
}
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