org.apache.cassandra.io.util

Class DataIntegrityMetadata.ChecksumValidator

java.lang.Object

org.apache.cassandra.io.util.DataIntegrityMetadata.ChecksumValidator

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

Enclosing class:

DataIntegrityMetadata

public static class DataIntegrityMetadata.ChecksumValidator
extends java.lang.Object
implements java.io.Closeable

Field Summary

Fields

Modifier and Type	Field and Description
int	chunkSize

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ChecksumValidator(ChecksumType checksumType, RandomAccessReader reader, int chunkSize)
	ChecksumValidator(ChecksumType checksumType, RandomAccessReader reader, java.lang.String dataFilename)
	ChecksumValidator(Descriptor descriptor)

Method Summary

Modifier and Type	Method and Description
long	chunkStart(long offset)
void	close()
void	seek(long offset)
void	validate(byte[] bytes, int start, int end)
void	validate(java.nio.ByteBuffer buffer) validates the checksum with the bytes from the specified buffer.

Methods inherited from class java.lang.Object

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

Field Detail

chunkSize

public final int chunkSize

Constructor Detail

ChecksumValidator

public ChecksumValidator(Descriptor descriptor)
                  throws java.io.IOException

Throws:

java.io.IOException

ChecksumValidator

public ChecksumValidator(ChecksumType checksumType,
                         RandomAccessReader reader,
                         java.lang.String dataFilename)
                  throws java.io.IOException

Throws:

java.io.IOException

ChecksumValidator

protected ChecksumValidator(ChecksumType checksumType,
                            RandomAccessReader reader,
                            int chunkSize)

Method Detail

seek

public void seek(long offset)

chunkStart

public long chunkStart(long offset)

validate

public void validate(byte[] bytes,
                     int start,
                     int end)
              throws java.io.IOException

Throws:

java.io.IOException

validate

public void validate(java.nio.ByteBuffer buffer)
              throws java.io.IOException

validates the checksum with the bytes from the specified buffer. Upon return, the buffer's position will be updated to its limit; its limit will not have been changed.

Throws:

java.io.IOException

close

public void close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable