de.intarsys.tools.stream

Class LogInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

de.intarsys.tools.stream.LogInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class LogInputStream
extends java.io.FilterInputStream

An InputStream that logs any char read.

This stream is piped in the reading process, any characters read are written to an associated OutputStream object.

 Client -> LogInputStream -> InputStream -> Source
            |
            v
           OutputStream
 

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor and Description
LogInputStream(java.io.InputStream newin, java.io.OutputStream newlog) SplitStream - Konstruktorkommentar.

Method Summary

Modifier and Type	Method and Description
void	close()
java.io.OutputStream	getLog()
int	read() Reads the next byte of data from the input stream.
int	read(byte[] b, int off, int len) Reads up to len bytes of data from this input stream into an array of bytes.
void	setLog(java.io.OutputStream newLog)

Methods inherited from class java.io.FilterInputStream

available, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

LogInputStream

public LogInputStream(java.io.InputStream newin,
                      java.io.OutputStream newlog)

SplitStream - Konstruktorkommentar.

Parameters:

newin -

newlog -

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.FilterInputStream

Throws:

java.io.IOException

getLog

public java.io.OutputStream getLog()

read

public int read()
         throws java.io.IOException

Reads the next byte of data from the input stream. The value byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value -1 is returned. This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

A subclass must provide an implementation of this method.

Overrides:

read in class java.io.FilterInputStream

Returns:

the next byte of data, or -1 if the end of the stream is reached.

Throws:

java.io.IOException - if an I/O error occurs.

read

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

Reads up to len bytes of data from this input stream into an array of bytes. This method blocks until some input is available.

This method simply performs in.read(b, off, len) and returns the result.

Overrides:

read in class java.io.FilterInputStream

Parameters:

b - the buffer into which the data is read.

off - the start offset of the data.

len - the maximum number of bytes read.

Returns:

the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached.

Throws:

java.io.IOException - if an I/O error occurs.

See Also:

FilterInputStream.in

setLog

public void setLog(java.io.OutputStream newLog)