hadoop FileChecksum 源码
haddop FileChecksum 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileChecksum.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.fs;
import java.util.Arrays;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.fs.Options.ChecksumOpt;
import org.apache.hadoop.io.Writable;
/** An abstract class representing file checksums for files. */
@InterfaceAudience.Public
@InterfaceStability.Stable
public abstract class FileChecksum implements Writable {
/**
* The checksum algorithm name.
*
* @return algorithm name.
*/
public abstract String getAlgorithmName();
/**
* The length of the checksum in bytes.
*
* @return length.
*/
public abstract int getLength();
/**
* The value of the checksum in bytes.
*
* @return byte array.
*/
public abstract byte[] getBytes();
public ChecksumOpt getChecksumOpt() {
return null;
}
/**
* Return true if both the algorithms and the values are the same.
*
* @param other other.
* @return if equal true, not false.
*/
@Override
public boolean equals(Object other) {
if (other == this) {
return true;
}
if (!(other instanceof FileChecksum)) {
return false;
}
final FileChecksum that = (FileChecksum)other;
return this.getAlgorithmName().equals(that.getAlgorithmName())
&& Arrays.equals(this.getBytes(), that.getBytes());
}
@Override
public int hashCode() {
return getAlgorithmName().hashCode() ^ Arrays.hashCode(getBytes());
}
}
相关信息
相关文章
hadoop BatchListingOperations 源码
hadoop BatchedRemoteIterator 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦