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org.apache.hadoop.fs
Class MD5MD5CRC32FileChecksum

java.lang.Object
  extended by org.apache.hadoop.fs.FileChecksum
      extended by org.apache.hadoop.fs.MD5MD5CRC32FileChecksum
All Implemented Interfaces:
Writable

public class MD5MD5CRC32FileChecksum
extends FileChecksum

MD5 of MD5 of CRC32.


Field Summary
static int LENGTH
           
 
Constructor Summary
MD5MD5CRC32FileChecksum()
          Same as this(0, 0, null)
MD5MD5CRC32FileChecksum(int bytesPerCRC, long crcPerBlock, MD5Hash md5)
          Create a MD5FileChecksum
 
Method Summary
 String getAlgorithmName()
          The checksum algorithm name
 byte[] getBytes()
          The value of the checksum in bytes
 int getLength()
          The length of the checksum in bytes
 void readFields(DataInput in)
          Deserialize the fields of this object from in.
 String toString()
          
static MD5MD5CRC32FileChecksum valueOf(Attributes attrs)
          Return the object represented in the attributes.
 void write(DataOutput out)
          Serialize the fields of this object to out.
static void write(org.znerd.xmlenc.XMLOutputter xml, MD5MD5CRC32FileChecksum that)
          Write that object to xml output.
 
Methods inherited from class org.apache.hadoop.fs.FileChecksum
equals, hashCode
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

LENGTH

public static final int LENGTH
See Also:
Constant Field Values
Constructor Detail

MD5MD5CRC32FileChecksum

public MD5MD5CRC32FileChecksum()
Same as this(0, 0, null)


MD5MD5CRC32FileChecksum

public MD5MD5CRC32FileChecksum(int bytesPerCRC,
                               long crcPerBlock,
                               MD5Hash md5)
Create a MD5FileChecksum

Method Detail

getAlgorithmName

public String getAlgorithmName()
The checksum algorithm name

Specified by:
getAlgorithmName in class FileChecksum

getLength

public int getLength()
The length of the checksum in bytes

Specified by:
getLength in class FileChecksum

getBytes

public byte[] getBytes()
The value of the checksum in bytes

Specified by:
getBytes in class FileChecksum

readFields

public void readFields(DataInput in)
                throws IOException
Deserialize the fields of this object from in.

For efficiency, implementations should attempt to re-use storage in the existing object where possible.

Parameters:
in - DataInput to deseriablize this object from.
Throws:
IOException

write

public void write(DataOutput out)
           throws IOException
Serialize the fields of this object to out.

Parameters:
out - DataOuput to serialize this object into.
Throws:
IOException

write

public static void write(org.znerd.xmlenc.XMLOutputter xml,
                         MD5MD5CRC32FileChecksum that)
                  throws IOException
Write that object to xml output.

Throws:
IOException

valueOf

public static MD5MD5CRC32FileChecksum valueOf(Attributes attrs)
                                       throws SAXException
Return the object represented in the attributes.

Throws:
SAXException

toString

public String toString()

Overrides:
toString in class Object


Copyright © 2009 The Apache Software Foundation