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GSI - The Generic Scripting Interface

Basic API

ScriptLoader (abstract)

Similiar to class loader, it loads a script (text or binary) into a script object. There is one per scripting language (like LuaScriptLoader).

Script (abstract)

Encapsulates the script, starts interpretations via the abstract void execute() throws ScriptException;.

Script.Element (abstract inner)

Represents an element of a script in a generic way, can be a function, global value or a class depending on the scripting language.

Scriptable (interface)

Says a class can be linked to a script, one method public ScriptInfo getScriptInfo();.

ScriptInfo

Similiar to BeanInfo, encaps methods and variables that can be accesed by a Script

ScriptException

The super for all Script related exceptions (NoScriptFoundException, ScriptInterpeterationException, et al.).

Script as Application:

One of the applications of GSI is a simple application that can run most any script (assuming its valid and can run solo (that is doesnt need an application to communicate with)) as an application:

<CODE>

package org.jos.apps;

import org.jos.gsi.*;

public class ScriptRunner {
 private Script script;
 
 public static void main(String args[]) {
  ScriptRunner runner;
  if(args.length < 1) {
	System.out.println("You must specify a script file in the command arguments.");
	System.exit(1);
  }
  runner = new ScriptRunner(args[0]); //or is that args[1], I can never remember
  runner.start();
  System.exit(0);
 }

 public ScriptRunner(String scriptToRun) {
  try {
	script = ScriptLoader.load(scriptToRun)
  } catch(ScriptException e) {
	System.out.println(e);
  }
 }

 public void start() {
  try {
	script.execute();
  } catch(ScriptException e) {
	System.out.println(e);
  }
 }
}

This app has no idea what script or even what language its running.

--DigiGod 99.08.01

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