vox-core/submodules/vox-core-jvm/src/Jvm/IPC.js

Runtime de aplicaciones multiplataforma

var fs= require("fs")
var Path= require("path")
var os= require("os");
var windows=os.platform()=="win32";
var cp=require("child_process");
var path= Path.normalize(__dirname +"/../../jar/Java2All.jar");

var LprIpc= core.org.voxsoftware.Lpr.IPC
var IPC= module.exports= function(args){
	if(args)
		this.jvmargs= args
	LprIpc.call(this)
}

IPC.prototype = Object.create(LprIpc.prototype);
IPC.prototype.constructor= IPC



IPC.prototype.spawn= function(){
	var javaPath= IPC.getJavaPath()
	if(!javaPath)
		throw new core.System.IO.FileNotFoundException("Java no está instalado. Descargue desde la página oficial el JRE o JDK")

	var args=this.jvmargs || []
	args.push("-jar")
	args.push(path)
	return cp.spawn(javaPath, args)
}



IPC.getJavaPath= function(){
	var path= process.env.PATH||"", f
	var paths= path.split(Path.delimiter)
	for(var i=0;i<paths.length;i++){
		f=path= Path.join(paths[i], "java")
		if(windows){
			f= path+".exe"
			if(fs.existsSync(f))
				break

			f= path+".cmd"
			if(fs.existsSync(f))
				break

			f= path+".bat"
			if(fs.existsSync(f))
				break


		}
		else{
			if(fs.existsSync(f))
				break
		}

		f= undefined
	}

	return f
}

//{"nameindex": 5, "typename": "java.lang.Integer", "commandid": 4, "c": 3}