spark BlocksRemoved 源码
spark BlocksRemoved 代码
文件路径：/common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/protocol/BlocksRemoved.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;
// Needed by ScalaDoc. See SPARK-7726
import static org.apache.spark.network.shuffle.protocol.BlockTransferMessage.Type;
/** The reply to remove blocks giving back the number of removed blocks. */
public class BlocksRemoved extends BlockTransferMessage {
public final int numRemovedBlocks;
public BlocksRemoved(int numRemovedBlocks) {
this.numRemovedBlocks = numRemovedBlocks;
}
@Override
protected Type type() { return Type.BLOCKS_REMOVED; }
@Override
public int hashCode() {
return Objects.hashCode(numRemovedBlocks);
}
@Override
public String toString() {
return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE)
.append("numRemovedBlocks", numRemovedBlocks)
.toString();
}
@Override
public boolean equals(Object other) {
if (other instanceof BlocksRemoved) {
BlocksRemoved o = (BlocksRemoved) other;
return numRemovedBlocks == o.numRemovedBlocks;
}
return false;
}
@Override
public int encodedLength() {
return 4;
}
@Override
public void encode(ByteBuf buf) {
buf.writeInt(numRemovedBlocks);
}
public static BlocksRemoved decode(ByteBuf buf) {
int numRemovedBlocks = buf.readInt();
return new BlocksRemoved(numRemovedBlocks);
}
}
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