org.apache.tools.ant

Class DemuxOutputStream

java.lang.Object

java.io.OutputStream

org.apache.tools.ant.DemuxOutputStream

All Implemented Interfaces:

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

public class DemuxOutputStream
extends java.io.OutputStream

Logs content written by a thread and forwards the buffers onto the project object which will forward the content to the appropriate task.

Since:

1.4

Constructor Summary

Constructors

Constructor and Description
DemuxOutputStream(Project project, boolean isErrorStream) Creates a new instance of this class.

Method Summary

Modifier and Type	Method and Description
void	close() Equivalent to flushing the stream.
void	flush() Writes all remaining data in the buffer associated with the current thread to the project.
protected void	processBuffer(java.io.ByteArrayOutputStream buffer) Converts the buffer to a string and sends it to the project.
protected void	processFlush(java.io.ByteArrayOutputStream buffer) Converts the buffer to a string and sends it to the project.
void	write(byte[] b, int off, int len) Write a block of characters to the output stream
void	write(int cc) Writes the data to the buffer and flushes the buffer if a line separator is detected or if the buffer has reached its maximum size.

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

DemuxOutputStream

public DemuxOutputStream(Project project,
                         boolean isErrorStream)

Creates a new instance of this class.

Parameters:

project - The project instance for which output is being demultiplexed. Must not be null.

isErrorStream - true if this is the error string, otherwise a normal output stream. This is passed to the project so it knows which stream it is receiving.

Method Detail

write

public void write(int cc)
           throws java.io.IOException

Writes the data to the buffer and flushes the buffer if a line separator is detected or if the buffer has reached its maximum size.

Specified by:

write in class java.io.OutputStream

Parameters:

cc - data to log (byte).

Throws:

java.io.IOException - if the data cannot be written to the stream

processBuffer

protected void processBuffer(java.io.ByteArrayOutputStream buffer)

Converts the buffer to a string and sends it to the project.

Parameters:

buffer - the ByteArrayOutputStream used to collect the output until a line separator is seen.

See Also:

Project.demuxOutput(String,boolean)

processFlush

protected void processFlush(java.io.ByteArrayOutputStream buffer)

Converts the buffer to a string and sends it to the project.

Parameters:

buffer - the ByteArrayOutputStream used to collect the output until a line separator is seen.

See Also:

Project.demuxOutput(String,boolean)

close

public void close()
           throws java.io.IOException

Equivalent to flushing the stream.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.OutputStream

Throws:

java.io.IOException - if there is a problem closing the stream.

See Also:

flush()

flush

public void flush()
           throws java.io.IOException

Writes all remaining data in the buffer associated with the current thread to the project.

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.OutputStream

Throws:

java.io.IOException - if there is a problem flushing the stream.

write

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

Write a block of characters to the output stream

Overrides:

write in class java.io.OutputStream

Parameters:

b - the array containing the data

off - the offset into the array where data starts

len - the length of block

Throws:

java.io.IOException - if the data cannot be written into the stream.