org.globus.io.gass.server

Class JobOutputStream

java.lang.Object

java.io.OutputStream

org.globus.io.gass.server.JobOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class JobOutputStream
extends OutputStream

This is a small class that allows to redirect a job's output to a custom job output listener. That is, a listener that presents/displays the job output in a specific way. For example, this class can be used to redirect a job's output to a window.

This class is specificaly designed for jobs that generate textual output. Binary data might not be handled correctly.

Field Summary

Fields

Modifier and Type	Field and Description
protected JobOutputListener	listener

Constructor Summary

Constructors

Constructor and Description
JobOutputStream(JobOutputListener jobListener) Creates a job output stream with a specific job output listener to which the job output will be redirected to.

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Notifies the job output listener that no more output will be produced.
void	write(byte[] b, int off, int len) Converts the byte array to a string and forwards it to the job output listener.
void	write(int b) Converts the int to a string and forwards it to the job output listener.

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

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

Field Detail

listener

protected JobOutputListener listener

Constructor Detail

JobOutputStream

public JobOutputStream(JobOutputListener jobListener)

Creates a job output stream with a specific job output listener to which the job output will be redirected to.

Parameters:

jobListener - an instance of the job output listener. Cannot be null.

Method Detail

write

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

Converts the byte array to a string and forwards it to the job output listener.
Called by the GassServer.

Overrides:

write in class OutputStream

Throws:

IOException

write

public void write(int b)
           throws IOException

Converts the int to a string and forwards it to the job output listener.
Called by the GassServer.

Specified by:

write in class OutputStream

Throws:

IOException

close

public void close()
           throws IOException

Notifies the job output listener that no more output will be produced.
Called by the GassServer.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class OutputStream

Throws:

IOException