org.apache.hadoop.util
Class ChecksumUtil

java.lang.Object
  org.apache.hadoop.util.ChecksumUtil

public class ChecksumUtil
extends Object

Constructor Summary

ChecksumUtil()

Method Summary

static void

updateChunkChecksum(byte[] buf, int checksumOff, int dataOff, int dataLen, DataChecksum checksum) updates the checksum for a buffer

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ChecksumUtil

public ChecksumUtil()

Method Detail

updateChunkChecksum

public static void updateChunkChecksum(byte[] buf,
                                       int checksumOff,
                                       int dataOff,
                                       int dataLen,
                                       DataChecksum checksum)
                                throws IOException

updates the checksum for a buffer

Parameters:

buf - - buffer to update the checksum in

chunkOff - - offset in the buffer where the checksum is to update

dataOff - - offset in the buffer of the data

dataLen - - length of data to compute checksum on

Throws:

IOException