Package com.oss.util

Class CompressOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

java.util.zip.DeflaterOutputStream

com.oss.util.CompressOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

public class CompressOutputStream
extends java.util.zip.DeflaterOutputStream

Constructor Summary

Constructors

Constructor and Description
CompressOutputStream(java.io.OutputStream out)
CompressOutputStream(java.io.OutputStream out, java.util.zip.Deflater deflater) Constructs CompressOutputStream with the specified compressor and a default buffer size.
CompressOutputStream(java.io.OutputStream out, java.util.zip.Deflater deflater, int size)

Method Summary

Modifier and Type	Method and Description
void	finish() Finishes writing compressed data to the output stream without closing the underlying stream.
void	write(byte[] b, int off, int len) Writes an array of bytes to the compressed output stream.

Methods inherited from class java.util.zip.DeflaterOutputStream

close, flush, write

Methods inherited from class java.io.FilterOutputStream

write

Methods inherited from class java.lang.Object

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

Constructor Detail

CompressOutputStream

public CompressOutputStream(java.io.OutputStream out)

CompressOutputStream

public CompressOutputStream(java.io.OutputStream out,
                            java.util.zip.Deflater deflater)

Constructs CompressOutputStream with the specified compressor and a default buffer size.

Parameters:

out - the output stream

deflater - the compressor ("deflater")

CompressOutputStream

public CompressOutputStream(java.io.OutputStream out,
                            java.util.zip.Deflater deflater,
                            int size)

Method Detail

write

public void write(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException

Writes an array of bytes to the compressed output stream. This method will block until all the bytes are written.

Overrides:

write in class java.util.zip.DeflaterOutputStream

Parameters:

b - the data to be written

off - the start offset of the data

len - the length of the data

Throws:

java.io.IOException - if an I/O error has occurred

finish

public void finish()
            throws java.io.IOException

Finishes writing compressed data to the output stream without closing the underlying stream. Use this method when applying multiple filters in succession to the same output stream.

Overrides:

finish in class java.util.zip.DeflaterOutputStream

Throws:

java.io.IOException - if an I/O error has occurred