org.apache.tools.ant.util

Class KeepAliveOutputStream

public class KeepAliveOutputStream extends FilterOutputStream

Class that can be used to wrap System.out and System.err without getting anxious about any client closing the stream.

In code-language it means that it is not necessary to do:

 if (out != System.out && out!= System.err) {
   out.close();
 }

Constructor Summary
	KeepAliveOutputStream(OutputStream out) Constructor of KeepAliveOutputStream.

Method Summary
void	close() This method does nothing.
static PrintStream	wrapSystemErr() Convenience factory method that returns a non-closing PrintStream around System.err.
static PrintStream	wrapSystemOut() Convenience factory method that returns a non-closing PrintStream around System.out.

Constructor Detail

public KeepAliveOutputStream(OutputStream out)

Constructor of KeepAliveOutputStream.

Parameters: out an OutputStream value, it shoudl be standard output.

public void close()

This method does nothing.

Throws: IOException as we are overridding FilterOutputStream.

public static PrintStream wrapSystemErr()

Convenience factory method that returns a non-closing PrintStream around System.err.

Since: Ant 1.8.0

public static PrintStream wrapSystemOut()

Convenience factory method that returns a non-closing PrintStream around System.out.

Since: Ant 1.8.0