Re: [Php-java-bridge-users] Fwd: PHP to java, and then back to PHP

Hi Jost,

Thank you for the answer. I managed to pass closures of objects created 
in the main php file to java as parameters of functions.

But since we have a large amount off objects in our project, the ideal 
thing would be that the java code should be able to instantiate classes 
defined in php by itself.

To do so, I created the following classes.

In php:


class PHPClassFactory
{
   private static $_instance;

   public static function getInstance()
   {
     if (! isset(self::$_instance)) self::$_instance = new self();

     return self::$_instance;
   }

   public static function getClosure()
   {
     return java_closure(self::getInstance());
   }

   public static function instanciate($class, $params = null)
   {
     return java_closure( new $class() );
   }
}


In java:


public class PHPClassFactory
{
   private static Proxy factory;
   private static PHPClassFactory instance;

   public static void setProxy(Proxy phpproxy)
   {
     factory = phpproxy;
   }

   public static PHPClassFactory getInstance()
   {
     if (instance == null) instance = new PHPClassFactory();

     return instance;
   }

   public static Proxy instanciate(String clase) throws Throwable
   {
     return instanciate(clase, null);
   }

   public static Proxy instanciate(String clase, Object[] params) throws 
Throwable
   {
     PhpProcedure phpp = (PhpProcedure) Proxy.getInvocationHandler(factory);

     return (Proxy) phpp.invoke(factory, "instanciate", new Object[] { 
clase } );
   }

   public static Object call(Proxy object, String method, Object[] 
params) throws Throwable
   {
     PhpProcedure phpp = (PhpProcedure) Proxy.getInvocationHandler(object);

     return (Proxy) phpp.invoke(object, method, params);
   }
}


So any java code (called from the main php) should be able to 
instantiate a php class and use its methods like this:

     PHPClassFactory.setProxy(factory);

     Proxy foo = PHPClassFactory.instanciate("FooPHPClass");

     return (String) PHPClassFactory.call(foo, "greet", null);

However, it doesn't work. Running that gives a warning and a fatal error 
(which probably is because the previous warning):

Warning: Missing argument 1 for java_InternalJava::java_InternalJava()

and

Fatal error: Uncaught [[o:Exception]:"java.lang.Exception: Invoke 
failed: [[o:helloworld]]->useGreetTwo((o:Proxy)[o:$Proxy0]). Cause: 
java.lang.NoSuchMethodError: greet


I'm out of ideas right now. Can you give me a clue, please?

Thank you again,
Jaume Lopez


El 26/01/2011 22:25, php...@li... escribió:
> Hi,
>
> interesting concept. But it doesn't work, because the jsr223 api doesn't
> know about the existing php continuation and creates a new one.
>
> Jsr223 is for java->php->java... calls. For php->java->php... calls use
> java_closure:
>
> function toString() { return "i am a php Object method called from java
> called from php.";}
>
> echo java_closure();
>
> Please see java_closure API doc for details.
>
> Regards,
> Jost Bökemeier
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