uk.ac.ed.epcc.webapp.apps

Class CommandLauncher

java.lang.Object

uk.ac.ed.epcc.webapp.AbstractContexed

uk.ac.ed.epcc.webapp.apps.CommandLauncher

All Implemented Interfaces:

Contexed

public class CommandLauncher
extends AbstractContexed

Class to run a Command from the command-line. This class can be sub-classed to customise the AppContext creation.

Field Summary

Fields inherited from class uk.ac.ed.epcc.webapp.AbstractContexed

conn

Constructor Summary

Constructors

Constructor and Description
CommandLauncher(AppContext conn)

Method Summary

Modifier and Type	Method and Description
static void	die(java.lang.String errorMessage) Convenient method for killing the application with an error message
static void	die(java.lang.Throwable t) Convenient method for killing the application with an error message
static void	exit(AppContext conn, int exitCode) Convenient method for doing a normal system exit with a specified code
static void	main(java.lang.String[] args)
void	run(java.lang.Class<? extends Command> comm, java.lang.String[] args) launch pre-existing command.
void	run(java.lang.String[] args) run the Command.
void	setErr(java.io.PrintStream err)
void	setOut(java.io.PrintStream out)
static void	setProp(java.util.Properties prop, java.util.List<java.lang.String> propKeyVals) Sets the specified property
static Options.Instance	setupContext(java.lang.String[] args, java.util.LinkedList<java.lang.String> data, AppContext context)

Methods inherited from class uk.ac.ed.epcc.webapp.AbstractContexed

getContext, getLogger, resetLogger

Methods inherited from class java.lang.Object

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

Constructor Detail

CommandLauncher

public CommandLauncher(AppContext conn)

Method Detail

main

public static void main(java.lang.String[] args)

run

public void run(java.lang.String[] args)

run the Command.

Parameters:

args -

run

public void run(java.lang.Class<? extends Command> comm,
                java.lang.String[] args)

launch pre-existing command. Can use this to implement main method directly in Command Class

Parameters:

comm -

args -

Throws:

java.lang.Exception

setupContext

public static Options.Instance setupContext(java.lang.String[] args,
                                            java.util.LinkedList<java.lang.String> data,
                                            AppContext context)

die

public static void die(java.lang.String errorMessage)

Convenient method for killing the application with an error message

Parameters:

errorMessage - The error message

die

public static void die(java.lang.Throwable t)

Convenient method for killing the application with an error message

Parameters:

t - The Throwable that caused the error message

exit

public static void exit(AppContext conn,
                        int exitCode)

Convenient method for doing a normal system exit with a specified code

Parameters:

conn -

exitCode -

setProp

public static void setProp(java.util.Properties prop,
                           java.util.List<java.lang.String> propKeyVals)

Sets the specified property

Parameters:

prop -

propKeyVals - The property key and vlaue (expected format is 'key=value')

setOut

public void setOut(java.io.PrintStream out)

setErr

public void setErr(java.io.PrintStream err)