hadoop ReceivedDeletedBlockInfo 源码
haddop ReceivedDeletedBlockInfo 代码
文件路径：/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/ReceivedDeletedBlockInfo.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.hadoop.hdfs.server.protocol;
import org.apache.hadoop.hdfs.protocol.Block;
/**
* A data structure to store the blocks in an incremental block report.
*/
public class ReceivedDeletedBlockInfo {
Block block;
BlockStatus status;
String delHints;
public enum BlockStatus {
RECEIVING_BLOCK(1),
RECEIVED_BLOCK(2),
DELETED_BLOCK(3);
private final int code;
BlockStatus(int code) {
this.code = code;
}
public int getCode() {
return code;
}
public static BlockStatus fromCode(int code) {
for (BlockStatus bs : BlockStatus.values()) {
if (bs.code == code) {
return bs;
}
}
return null;
}
}
public ReceivedDeletedBlockInfo() {
}
public ReceivedDeletedBlockInfo(
Block blk, BlockStatus status, String delHints) {
this.block = blk;
this.status = status;
this.delHints = delHints;
}
public Block getBlock() {
return this.block;
}
public void setBlock(Block blk) {
this.block = blk;
}
public String getDelHints() {
return this.delHints;
}
public void setDelHints(String hints) {
this.delHints = hints;
}
public BlockStatus getStatus() {
return status;
}
@Override
public boolean equals(Object o) {
if (!(o instanceof ReceivedDeletedBlockInfo)) {
return false;
}
ReceivedDeletedBlockInfo other = (ReceivedDeletedBlockInfo) o;
return this.block.equals(other.getBlock())
&& this.status == other.status
&& this.delHints != null
&& this.delHints.equals(other.delHints);
}
@Override
public int hashCode() {
assert false : "hashCode not designed";
return 0;
}
public boolean blockEquals(Block b) {
return this.block.equals(b);
}
public boolean isDeletedBlock() {
return status == BlockStatus.DELETED_BLOCK;
}
@Override
public String toString() {
return block.toString() + ", status: " + status +
", delHint: " + delHints;
}
}
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