uk.ac.ed.epcc.webapp.exec

Interface DeferredProcessProxy

All Superinterfaces:

ProcessProxy

All Known Implementing Classes:

ProcessHandler

public interface DeferredProcessProxy
extends ProcessProxy

A ProcessProxy with deferred execution. The process is not actually started till the execute(long) method is called.

Method Summary

Modifier and Type	Method and Description
void	complete(long timeout_millis) wait for the process to complete.
java.lang.Integer	execute(long timeout_millis) Blocking call to execute the deferred process.
void	setTimeout(long timeout_millis) Set an automatic timeout for the DeferredProcessProxy implemented by a thread.
void	start() Start the deferred process

Methods inherited from interface uk.ac.ed.epcc.webapp.exec.ProcessProxy

getErr, getExit, getOutput, wasTerminated

Method Detail

execute

java.lang.Integer execute(long timeout_millis)
                   throws java.lang.Exception

Blocking call to execute the deferred process. The process will be destoyed if the timeout is exceeded. This sh

Parameters:

timeout_millis -

Returns:

exit code

Throws:

java.lang.Exception

start

void start()

Start the deferred process

complete

void complete(long timeout_millis)
       throws java.lang.InterruptedException

wait for the process to complete. If the timeout is exceeded the process is forcebly destroyed.

Parameters:

timeout_millis -

Throws:

java.lang.InterruptedException

setTimeout

void setTimeout(long timeout_millis)

Set an automatic timeout for the DeferredProcessProxy implemented by a thread. This can be used if the spawning thread is not going to wait for completion.

Parameters:

timeout_millis -