lkrzyzanek / scripting-console-javaee6

Scripting Console For Java EE 6

Scripting Console For Java EE 6

This simple Java EE 6 web app demonstrates easy way how to execute script written in supported language by JVM.

Simple scripts needs to have one method run as follows:

	importPackage(java.lang);

	/* Run the script. helper is ScriptServiceHelper, out is PrintWriter */
	function run(helper, out) {
	  out.append("\nDONE");
	}

Arguments are:

• helper - helper class for easy getting CDI bean via helper.getBeanByName("beanName");
• out - result of script

Features

• Execution in same thread or separate thread
• Helper to get CDI bean based on its name
• Print result of script to print writer

Examples

1. Call method of CDI bean

    function run(helper, out) {
      service = helper.getBeanByName("scriptService");
      out.append("Available Languages: " + service.getLanguages());
      out.append("\nDONE");
    }
   

2. Sleep 1 sec 3 times to demonstrate benefit by execution in separate thread

    importPackage(java.lang);
   
    function run(helper, out) {
      Thread.sleep(1000);
      out.append("\n1");
      Thread.sleep(1000);
      out.append("\n2");
      Thread.sleep(1000);
      out.append("\n3");
      Thread.sleep(1000);
      out.append("\nDONE");
    }