package com.smtaiserver.smtaiserver.javaai.jsonflow.core;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.ContextAction;
import org.mozilla.javascript.ContextFactory;
import org.mozilla.javascript.Function;

import com.smtaiserver.smtaiserver.javaai.jsonflow.script.SMTJsonFlowScriptScope;

public class SMTJsonFlowScriptJet
{
	protected ContextFactory					_scriptFactory;
	protected SMTJsonFlowScriptScope			_globalScope;
	protected SMTJsonFlowManager				_poolManager;
	
	public SMTJsonFlowScriptJet() throws Exception
	{
		// 创建脚本引擎
		Exception[] exScript = new  Exception[1];
		_globalScope = new SMTJsonFlowScriptScope();
		_scriptFactory = new ContextFactory();
		_scriptFactory.call(new ContextAction(){
			@Override
			public Object run(Context cx) {
				try {
					_globalScope.__init__(cx);
				} catch (Exception e) {
					exScript[0] = e;
				}
				return null;
			}
		});
		if(exScript[0] != null)
			throw exScript[0];
	}
	
	public void setPoolManager(SMTJsonFlowManager poolManager)
	{
		_poolManager = poolManager;
	}
	
	public void close()
	{
		_poolManager.freeScripteJet(this);
	}
	
	public Context entryContext()
	{
		return _scriptFactory.enterContext();
	}
	
	public Object callFunction(Context cx, Function func, Object[] args)
	{
		return func.call(cx, func, null, args);
	}

	public Function compileFunction(Context cx, String name, String code)
	{
		Function func = cx.compileFunction(_globalScope, code, name, 1, null);
		return func;
	}
	
	public void executeScript(Context cx, String code)
	{
		cx.evaluateString(_globalScope, code, "code", 1, null);
	}
}