ch.elca.el4j.services.debug
Class BshCommandLineLauncher

java.lang.Object
  ch.elca.el4j.services.debug.BshCommandLineLauncher

All Implemented Interfaces:

InitializingBean, ApplicationContextAware

public class BshCommandLineLauncher
extends Object
implements ApplicationContextAware, InitializingBean

Class to evaluate a bsh string in a sub-shell of this JVM. Sample uses: java -Del4j.bsh.launchstr="server(2000);" anyClass makes the JVM accessible from remote (std bean shell) * bsh.show=true; // shows output * debug(); * see directory bsh.commands in the bsh.jar file for more ideas You can add scriptets in the directory /resources/mandatory: they are directly available as command. Scripts that could be added (ideas): * dump all cfg of spring app ctxt * regularly print mem and thread status (e.g. all 30'' to track issues) * status info about the JVM * save an object serialized to disk/ load it again * start a new spring bean

How to demo this module: (1) Add the following to your MAVEN_OPTS environment variable: -Del4j.bsh.launchstr=server(2000);
(2) Add a dependency to this module.
(3) Launch your application
(4) Open in a browser the following URL: http://localhost:2000/remote/jconsole.html
(5) type threadInfo(); ENTER

Limitation: cut and paste (with external info) is currently not supported.

Author:

Philipp H. Oser (POS)

File-location:

BshCommandLineLauncher

Last check-in date:

2009-08-04 13:59:45 +0200 (Di, 04. Aug 2009) by swismer for revision 3873

Field Summary

static String	BSH_LAUNCH_STRING
static String	BSH_SCRIPLET_CLASSPATH
protected ApplicationContext	m_ac
protected ShellExecutorImpl	shell

Constructor Summary

BshCommandLineLauncher()

Method Summary

void	addScriptletClasspath(String cp)
void	afterPropertiesSet()
ShellExecutor	getShellExecutor()
void	setApplicationContext(ApplicationContext applicationContext)

Methods inherited from class java.lang.Object

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

Field Detail

BSH_LAUNCH_STRING

public static final String BSH_LAUNCH_STRING

See Also:

Constant Field Values

BSH_SCRIPLET_CLASSPATH

public static final String BSH_SCRIPLET_CLASSPATH

See Also:

Constant Field Values

shell

protected ShellExecutorImpl shell

m_ac

protected ApplicationContext m_ac

Constructor Detail

BshCommandLineLauncher

public BshCommandLineLauncher()

Method Detail

getShellExecutor

public ShellExecutor getShellExecutor()

addScriptletClasspath

public void addScriptletClasspath(String cp)

setApplicationContext

public void setApplicationContext(ApplicationContext applicationContext)
                           throws BeansException

Specified by:

setApplicationContext in interface ApplicationContextAware

Throws:

BeansException

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

Exception