com.amazon.redshift.core

Class CompressedInputStream

java.lang.Object

java.io.InputStream

com.amazon.redshift.core.CompressedInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class CompressedInputStream
extends InputStream

Constructor Summary

Constructors

Constructor and Description
CompressedInputStream(InputStream in, RedshiftLogger in_logger)

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
long	getBytesReadFromStream()
static int	lz4_decompress(byte[] compressed, int position, int compressedLen, byte[] dest, int dOff, RedshiftLogger logger) Implementation of lz4 decompression.
int	read()
int	read(byte[] b, int off, int len)
long	skip(long n)

Methods inherited from class java.io.InputStream

mark, markSupported, read, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

CompressedInputStream

public CompressedInputStream(InputStream in,
                             RedshiftLogger in_logger)

Method Detail

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

getBytesReadFromStream

public long getBytesReadFromStream()

lz4_decompress

public static int lz4_decompress(byte[] compressed,
                                 int position,
                                 int compressedLen,
                                 byte[] dest,
                                 int dOff,
                                 RedshiftLogger logger)
                          throws IOException

Implementation of lz4 decompression. Curently I could not make any library to do stream decompression as is required by LZ4_decompress_safe_continue().

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class InputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException