com.j256.simplezip

Class BufferedOutputStream

java.lang.Object

java.io.OutputStream

com.j256.simplezip.BufferedOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class BufferedOutputStream
extends OutputStream

Class which helps the writer by absorbing the encoded (compressed) stream information so that we can annotate the ZipFileHeader with the encoded size and checksums and not have to use the ZipDataDescriptor which is written after the data.

Author:

graywatson

Constructor Summary

Constructors

Constructor and Description
BufferedOutputStream(OutputStream outputStream)

Method Summary

Modifier and Type	Method and Description
void	close()
void	enableBuffer(long maxSizeBuffered, int maxSizeInMemory) Set our buffer limits.
ZipFileHeader	finishFileData(long crc32, long uncompressedSize) We are done with the writing of the file data so dump everything if the buffer hasn't given up.
void	flush()
long	getEncodedSize() Encoded bytes either buffered or written of the latest file written by finishFileData(long, long)..
File	getTmpFile() Exposed for testing purposes.
long	getWriteCount() Number of byte written to the output-stream.
void	setFileHeader(ZipFileHeader fileHeader) This saves the file-header and effectively turns on the memory buffer.
void	write(byte[] buffer, int offset, int length)
void	write(int b)

Methods inherited from class java.io.OutputStream

write

Methods inherited from class java.lang.Object

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

Constructor Detail

BufferedOutputStream

public BufferedOutputStream(OutputStream outputStream)

Method Detail

enableBuffer

public void enableBuffer(long maxSizeBuffered,
                         int maxSizeInMemory)

Set our buffer limits.

write

public void write(int b)
           throws IOException

Specified by:

write in class OutputStream

Throws:

IOException

write

public void write(byte[] buffer,
                  int offset,
                  int length)
           throws IOException

Overrides:

write in class OutputStream

Throws:

IOException

finishFileData

public ZipFileHeader finishFileData(long crc32,
                                    long uncompressedSize)
                             throws IOException

We are done with the writing of the file data so dump everything if the buffer hasn't given up.

Returns:

Returned the file-header that was written to the stream if it is different from the one set.

Throws:

IOException

getWriteCount

public long getWriteCount()

Number of byte written to the output-stream.

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Overrides:

flush in class OutputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class OutputStream

Throws:

IOException

getTmpFile

public File getTmpFile()

Exposed for testing purposes.

getEncodedSize

public long getEncodedSize()

Encoded bytes either buffered or written of the latest file written by finishFileData(long, long)..

setFileHeader

public void setFileHeader(ZipFileHeader fileHeader)

This saves the file-header and effectively turns on the memory buffer.