org.jvnet.hudson.ec2.launcher
Class FastPipedOutputStream

java.lang.Object
  java.io.OutputStream
      org.jvnet.hudson.ec2.launcher.FastPipedOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable

public class FastPipedOutputStream
extends java.io.OutputStream

This class is equivalent to java.io.PipedOutputStream. In the interface it only adds a constructor which allows for specifying the buffer size. Its implementation, however, is much simpler and a lot more efficient than its equivalent. It doesn't rely on polling. Instead it uses proper synchronization with its counterpart FastPipedInputStream.

Author:

WD

See Also:

FastPipedOutputStream

Constructor Summary

FastPipedOutputStream()
Creates an unconnected PipedOutputStream.

FastPipedOutputStream(FastPipedInputStream sink)
Creates a PipedOutputStream with a default buffer size and connects it to sink.

FastPipedOutputStream(FastPipedInputStream sink, int bufferSize)
Creates a PipedOutputStream with buffer size bufferSize and connects it to sink.

Method Summary

void	close()
void	connect(FastPipedInputStream sink)
protected void	finalize()
void	flush()
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class java.lang.Object

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

Constructor Detail

FastPipedOutputStream

public FastPipedOutputStream()

Creates an unconnected PipedOutputStream.

FastPipedOutputStream

public FastPipedOutputStream(FastPipedInputStream sink)
                      throws java.io.IOException

Creates a PipedOutputStream with a default buffer size and connects it to sink.

Throws:

java.io.IOException - It was already connected.

FastPipedOutputStream

public FastPipedOutputStream(FastPipedInputStream sink,
                             int bufferSize)
                      throws java.io.IOException

Creates a PipedOutputStream with buffer size bufferSize and connects it to sink.

Throws:

java.io.IOException - It was already connected.

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.OutputStream

Throws:

java.io.IOException - The pipe is not connected.

connect

public void connect(FastPipedInputStream sink)
             throws java.io.IOException

Throws:

java.io.IOException - The pipe is already connected.

finalize

protected void finalize()
                 throws java.lang.Throwable

Overrides:

finalize in class java.lang.Object

Throws:

java.lang.Throwable

flush

public void flush()
           throws java.io.IOException

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.OutputStream

Throws:

java.io.IOException

write

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

Specified by:

write in class java.io.OutputStream

Throws:

java.io.IOException

write

public void write(byte[] b)
           throws java.io.IOException

Overrides:

write in class java.io.OutputStream

Throws:

java.io.IOException

write

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

Overrides:

write in class java.io.OutputStream

Throws:

java.io.IOException - The pipe is not connected or a reader has closed it.