Package net.sf.basedb.util

Class InputStreamSplitter

java.lang.Object

java.io.InputStream

net.sf.basedb.util.InputStreamSplitter

All Implemented Interfaces:

Closeable, AutoCloseable

public class InputStreamSplitter
extends InputStream

This class can be used to split an input stream into one or more additional output streams. When data is read from this input stream the bytes are also written to the specified output streams with one of the OutputStream.write(int) or OutputStream.write(byte[], int, int) methods.

Version:

2.0

Author:

nicklas

Last modified

$Date: 2010-08-13 10:50:27 +0200 (fr, 13 aug 2010) $

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	copySkipped	If the skip(long) method should copy to the output streams or no.
private OutputStream[]	copyTo	Streams to copy the data to.
private InputStream	in	The source input stream to read from.
private int	numRead
private boolean	readToEnd	If the remainder of the input stream should be copied if it is closed before the end.

Constructor Summary

Constructors

Constructor	Description
InputStreamSplitter(InputStream in, boolean copySkipped, boolean readToEnd, OutputStream... copyTo)	Create a new input stream splitter.
InputStreamSplitter(InputStream in, OutputStream... copyTo)	Create a new input stream splitter.

Method Summary

Modifier and Type	Method	Description
int	available()
void	close()
private void	copy(byte[] b, int off, int len)	Write data to all output streams.
private void	copy(int b)	Write data to all output streams.
long	getNumRead()	Get the number of bytes that has been read or skipped from the input stream.
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()
long	skip(long n)

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class java.lang.Object

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

Field Details

numRead

private int numRead

in

private final InputStream in

The source input stream to read from.

copyTo

private final OutputStream[] copyTo

Streams to copy the data to.

copySkipped

private final boolean copySkipped

If the skip(long) method should copy to the output streams or no.

readToEnd

private final boolean readToEnd

If the remainder of the input stream should be copied if it is closed before the end.

Constructor Details

InputStreamSplitter

public InputStreamSplitter(InputStream in,
OutputStream... copyTo)

Create a new input stream splitter. Skipped bytes are not copied and the remainder of the stream is not copied if closed.

Parameters:

in - The input stream to read from

copyTo - The output streams to copy data to

InputStreamSplitter

public InputStreamSplitter(InputStream in,
boolean copySkipped,
boolean readToEnd,
OutputStream... copyTo)

Create a new input stream splitter. Skipped bytes are not copied and the remainder of the stream is not copied if closed.

Parameters:

in - The input stream to read from. Null is not allowed

copySkipped - TRUE if skipped bytes should be copied, FALSE otherwise

readToEnd - If the remainder of the input stream should be copied if it is closed before the end

copyTo - The output streams to copy data to. Null is not allowed

Since:

2.4

Method Details

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class InputStream

Throws:

IOException

mark

public void mark(int readlimit)

Overrides:

mark in class InputStream

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

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

Overrides:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

getNumRead

public long getNumRead()

Get the number of bytes that has been read or skipped from the input stream.

Since:

2.4

copy

private void copy(int b)
           throws IOException

Write data to all output streams.

Throws:

IOException

copy

private void copy(byte[] b,
int off,
int len)
           throws IOException

Write data to all output streams.

Throws:

IOException