spark StreamFailure 源码
spark StreamFailure 代码
文件路径：/common/network-common/src/main/java/org/apache/spark/network/protocol/StreamFailure.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.protocol;
import java.util.Objects;
import io.netty.buffer.ByteBuf;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
/**
* Message indicating an error when transferring a stream.
*/
public final class StreamFailure extends AbstractMessage implements ResponseMessage {
public final String streamId;
public final String error;
public StreamFailure(String streamId, String error) {
this.streamId = streamId;
this.error = error;
}
@Override
public Message.Type type() { return Type.StreamFailure; }
@Override
public int encodedLength() {
return Encoders.Strings.encodedLength(streamId) + Encoders.Strings.encodedLength(error);
}
@Override
public void encode(ByteBuf buf) {
Encoders.Strings.encode(buf, streamId);
Encoders.Strings.encode(buf, error);
}
public static StreamFailure decode(ByteBuf buf) {
String streamId = Encoders.Strings.decode(buf);
String error = Encoders.Strings.decode(buf);
return new StreamFailure(streamId, error);
}
@Override
public int hashCode() {
return Objects.hash(streamId, error);
}
@Override
public boolean equals(Object other) {
if (other instanceof StreamFailure) {
StreamFailure o = (StreamFailure) other;
return streamId.equals(o.streamId) && error.equals(o.error);
}
return false;
}
@Override
public String toString() {
return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE)
.append("streamId", streamId)
.append("error", error)
.toString();
}
}
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