hadoop CannotObtainBlockLengthException 源码
haddop CannotObtainBlockLengthException 代码
文件路径：/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/CannotObtainBlockLengthException.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;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.hdfs.protocol.LocatedBlock;
import java.io.IOException;
/**
* This exception is thrown when the length of a LocatedBlock instance
* can not be obtained.
*/
@InterfaceAudience.Public
@InterfaceStability.Unstable
public class CannotObtainBlockLengthException extends IOException {
private static final long serialVersionUID = 1L;
public CannotObtainBlockLengthException() {
super();
}
public CannotObtainBlockLengthException(String message){
super(message);
}
/**
* Constructs an {@code CannotObtainBlockLengthException} with the
* specified LocatedBlock that failed to obtain block length.
*
* @param locatedBlock
* The LocatedBlock instance which block length can not be obtained
*/
public CannotObtainBlockLengthException(LocatedBlock locatedBlock) {
super("Cannot obtain block length for " + locatedBlock);
}
/**
* Constructs an {@code CannotObtainBlockLengthException} with the
* specified LocatedBlock and file that failed to obtain block length.
*
* @param locatedBlock
* The LocatedBlock instance which block length can not be obtained
* @param src The file which include this block
*/
public CannotObtainBlockLengthException(LocatedBlock locatedBlock,
String src) {
super("Cannot obtain block length for " + locatedBlock + " of " + src);
}
}
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