com.groupon.lex.metrics.history.xdr.support.reader

Class Crc32VerifyingFileReader

java.lang.Object

com.groupon.lex.metrics.history.xdr.support.reader.Crc32VerifyingFileReader

All Implemented Interfaces:

FileReader, Closeable, AutoCloseable

public class Crc32VerifyingFileReader
extends Object
implements FileReader

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Crc32VerifyingFileReader.IOCrcMismatchException
static class	Crc32VerifyingFileReader.IOPaddingException

Field Summary

Fields

Modifier and Type	Field and Description
static int	CRC_LEN

Constructor Summary

Constructors

Constructor and Description
Crc32VerifyingFileReader(FileReader in, long len, int roundUp)

Method Summary

Modifier and Type	Method and Description
ByteBuffer	allocateByteBuffer(int size) Allocates a byte buffer.
void	close()
int	read(ByteBuffer data)

Methods inherited from class java.lang.Object

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

Field Detail

CRC_LEN

public static final int CRC_LEN

See Also:

Constant Field Values

Constructor Detail

Crc32VerifyingFileReader

public Crc32VerifyingFileReader(@NonNull
                                FileReader in,
                                long len,
                                int roundUp)

Method Detail

read

public int read(ByteBuffer data)
         throws IOException

Specified by:

read in interface FileReader

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

allocateByteBuffer

public ByteBuffer allocateByteBuffer(int size)

Description copied from interface: FileReader

Allocates a byte buffer. The allocated byte buffer will be direct if that is the best format for the writer. The allocated byte buffer will be array-based if that is the best format for the writer.

Specified by:

allocateByteBuffer in interface FileReader

Parameters:

size - The size of the buffer.

Returns:

An allocated buffer of the requested size.