php-java-bridge-users Mailing List for PHP/Java Bridge

Hi,

your

new $class()

is wrong. $class is a JavaObject and new $JavaObject()  requires at least
one argument.

Furthermore I'd use interfaces rather than the invocation handler:
public class Test {
  public static interface PhpObjectFactory {
    PhpObject makeObject(String t, Object[] args);
  }
  public static interface PhpObject {
    void doSomething(Object[] args);
    int getResult();
  }

  public static int runTests(PhpObjectFactory factory) throws Exception {
    PhpObject[] objects = new PhpObject[100];
    for(int i=0; i<4; i++) {
      objects[i] = factory.makeObject("ClassTest"+i, new Object[]{i});
    }

    for (int i=0; i<4; i++) {
     objects[i].doSomething(new Object[]{i});
    }

    int res=0;
    for (int i=0; i<4; i++) {
     res+=objects[i].getResult();
    }
    return res;
  }
}

<?php require_once("http://localhost:8080/JavaBridge/java/JavaBridge.inc");

class ClassTest0 {
  var $i;
  function ClassTest0 ($ar) {
   $this->i = $ar[0];
  }
  function doSomething($ar) {
   $this->i += java_values($ar[0]);
  }
  function getResult() {
   echo "result:{$this->i}\n";
   return $this->i;
  }
}
class ClassTest1 extends ClassTest0{};
class ClassTest2 extends ClassTest1{};
class ClassTest3 extends ClassTest2{};

function makeObject($tObj, $arObj) {
  $name = java_values($tObj);
  $ar = java_values($arObj);
  $obj = new $name($ar);
  return java_closure($obj, null, java('Test$PhpObject'));
}

echo java("Test")->runTests(java_closure(null, null,
java('Test$PhpObjectFactory')));
?>

javac Test.java
jar cf Test.jar *.class
java -Djava.ext.dirs=. -jar JavaBridge.jar

php -n -dallow_url_include=On test.php

=> 12


Regards,
Jost Bökemeier

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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