topic Re: Script evaluation in a separated thread in Alfresco Archive

Script evaluation in a separated thread

mathiasd — Fri, 23 Sep 2011 13:12:00 GMT

Hi,Is it possible to run script evaluations in a separated thread ? I made my own script engine which uses the javascript engine.I have something like that ublic Object eval(String script, Bindings n) throws ScriptException { ScriptThread thread = new ScriptThread(javascriptEngine,script,n)

Re: Script evaluation in a separated thread

trademak — Fri, 23 Sep 2011 13:23:13 GMT

Hi,

In the current trunk of Activiti you can make use of async continuations.
This means that you can execute a specific task asynchronous. Is that what you're looking for?

Best regards,

Re: Script evaluation in a separated thread

mathiasd — Fri, 23 Sep 2011 13:32:35 GMT

Not sure. Actually I'm trying to add some protections in my workflows.
For example I want to protect my workflow engine against infinite loops in script tasks. That's why I want to start the eval method in a separated Thread and interrupt this Thread if the evaluation is too long.

Actually I found the problem, I just add :


 Context.setProcessEngineConfiguration(config);
 Context.setCommandContext(commandContext);

before evaluation. Now I throw a ScriptException if the script is too long. My new problem () is that after the exception is thrown, the script seems to be still running (JavaVM still take 100% of the CPU).

Maybe you know a better solution to implement this "watchdog" ?