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

Hi,

the PHP/Java Bridge is written in pure Java. It runs with all Java versions >= Java 1.4.


> unrecognized gcj flag in the Makefile [...]

trying to compile Java to native code is a waste of time, imho.  

Native code provides the same features as the pure Java implementation, except that the gcj-compiled code runs 5 times slower than the JIT compiled code from the OpenJDK.


Regards,
Jost Boekemeier


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I don't know whether you've tried this already, but you might be able to
rebuild the rpm file from source as explained in INSTALL.LINUX. This is
not working for me at the moment on Centos 4.5 because of an
unrecognized gcj flag in the Makefile which I'm trying to sort out, but
it may well work for you with the more recent version of gcj you clearly
have. If you can't create the rpm then you will probably have better
luck with just building the source as explained in INSTALL. Hope this
helps.

Regards,
Matt


-----Original Message-----
From: php...@li...
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Of php...@li...
Sent: 30 May 2008 17:10
To: php...@li...
Subject: [Php-java-bridge-users] Any support for fedora core 9 in the
nearfuture?

Is there any support in the near future for fedora core 9


Thanks again and keep up the good work
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globe <http://www.solutionbyte.com>Gianfranco Baggio
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Is there any support in the near future for fedora core 9


Thanks again and keep up the good work
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globe <http://www.solutionbyte.com>Gianfranco Baggio
gf...@so...

I just updated to fedora 9 and I get an error message running 
php-java-bridge-5.2.2-1.i386.rpm

missing dependency: libgcj.so.8rh is needed

I checked and fedora 9 installs libgcj-4.3.0-8 which gives me an libgcj.so.9

Any solutions ????

I was thinking of uninstalling this package and try to install another 
package that would give me the right library but since I am new to 
fedora I am not sure if this is the right thing to do.


Please some help is needed.


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globe <http://www.solutionbyte.com>Gianfranco Baggio
gf...@so...

Thanks for the reply. Fortunately this problem solved itself. I was not
getting an invocation on Request$PhpNull, but was actually getting an
invocation on JavaBridge, which my debugger confirmed. As you have
pointed out, I ought to have been seeing an attempt to call a method on
Request$PhpNull, because I already had a proper HttpServletContext (or
ought to have) and I was attempting to call getServletContext() on that,
which is not a defined method. The reason for the bad invocation seems
to have been that I failed to upgrade my client includes after upgrading
the backend to 5.2.2. Client was 4.3.3. Upgrading the client php include
files did the trick. Thanks for the tip about java_inspect(). Somehow I
missed that one :)

Matt

-----Original Message-----
From: php...@li...
[mailto:php...@li...] On Behalf
Of php...@li...
Sent: 28 May 2008 15:10
To: php...@li...
Subject: Re: [Php-java-bridge-users] trouble getting access to another
appcontext running as servlet

Hi,

you should be able to access the foreign context, provided that the
foreign context is accessible. PHP scripts don't behave different than
JSP's.

In particular the following code should work:

<?php require_once("java/Java.inc");
$request = java_context()->getHttpServletRequest();
echo java_inspect($request);
$response = java_context()->getHttpServletResponse();
$context = java_context()->getServletContext();
$otherContext = $context->getContext("/JavaBridge");
$dispatcher =
$otherContext->getServletContext()->getRequestDispatcher("/my.jsp");
$dispatcher->forward($request, $response); ?>


> the parser
> php.java.bridge.Parser seems to interpret this as an invocation on the

> JavaBridge instance, php.java.bridge.JavaBridge.

I think this is a misunderstanding. The Request$PhpNull means that you
invoke a Java method with a NULL value, obtained from the previous
method call. Either the "/other-context" doesn't exist or it is not
accessible.


> I'm encouraged by the following var_dump output:

You can also use: echo java_inspect($java_value) :)

Regards,
Jost Boekemeier



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Hi,

you should be able to access the foreign context, provided that the foreign context is accessible. PHP scripts don't behave different than JSP's.

In particular the following code should work:

<?php require_once("java/Java.inc");
$request = java_context()->getHttpServletRequest();
echo java_inspect($request);
$response = java_context()->getHttpServletResponse();
$context = java_context()->getServletContext();
$otherContext = $context->getContext("/JavaBridge");
$dispatcher =
$otherContext->getServletContext()->getRequestDispatcher("/my.jsp");
$dispatcher->forward($request, $response);
?>


> the parser
> php.java.bridge.Parser seems to interpret this as an invocation on the
> JavaBridge instance, php.java.bridge.JavaBridge.

I think this is a misunderstanding. The Request$PhpNull means that you invoke a Java method with a NULL value, obtained from the previous method call. Either the "/other-context" doesn't exist or it is not accessible.


> I'm encouraged by the following var_dump output:

You can also use: echo java_inspect($java_value) :)

Regards,
Jost Boekemeier



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Hello list,
 
I'm running PHP-Java-Bridge as a web application within Tomcat 5.5 and
attempting to get a request dispatcher from the PHP side in order to
forward to another application. The PHP-Java-Bridge context has its
crossContext context attribute set to true, but I can only seem to get
the current context. I'm using PHP code like the following snippet:
 
 
----%<----
<?php
$request = java_context()->getHttpServletRequest();
$response = java_context()->getHttpServletResponse();
$context = java_context()->getServletContext();
$otherContext = $context->getContext("/other-context");
$dispatcher =
$otherContext->getServletContext()->getRequestDispatcher("/other-path");
$dispatcher->forward($request, $response);
?>
----%<----
 
In this simplified example, the client code is attempting to call
HttpServletContext.getContext(java.lang.String) on the native servlet
context, which in my case is an instance of
org.apache.catalina.core.ApplicationContextFacade; however, the parser
php.java.bridge.Parser seems to interpret this as an invocation on the
JavaBridge instance, php.java.bridge.JavaBridge. This invocation has the
argument stripped because php.java.bridge.JavaBridge only has
getContext() [no args]. I think this may be coming out of the method
cache, but it's difficult for me to see why this is happening as we are
reading and parsing an input stream inside a method that has many entry
points, making debugging quite cumbersome. Hopefully I've provided
enough information for someone to shed some light. The bridge
application runs fine and I get back a php.java.bridge.http.Context
instance from the java_context() call, which seems fine. As well, the
object returned from java_context()->getServletContext() appears to be
some kind of opaque reference to an
org.apache.catalina.core.ApplicationContextFacade. I'm encouraged by the
following var_dump output:
 
object(java_InternalJava)#1678 (6) {
  ...
  ...
  ...
  ["__signature"]=>
  string(49) "org.apache.catalina.core.ApplicationContextFacade"
}
 
 
Any help would be appreciated. Thanks.
 
Regards,
Matt

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Hi,

the MONO.STANDALONE folder from the binary download contains three examples.


Regards,
Jost Boekemeier



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Hey out there!

Can please please someone give me an wee example on how I can access
Mono .NET on Linux (ubuntu).


Thx a lot in advance!




-- 



Mit freundlichen Grüßen,

Kevin Keller

It's ok

Thanks for your help

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Envoyé : lundi 19 mai 2008 17:45
À : php...@li...
Objet : Re: [Php-java-bridge-users] Debian installation

Hi,

> Fatal error: Class 'Java' not found in

as I understand it, you need some Java class definition. Please see our FAQ
for details.


Regards,
Jost Boekemeier



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Hi,

> Fatal error: Class 'Java' not found in

as I understand it, you need some Java class definition. Please see our FAQ for details.


Regards,
Jost Boekemeier



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Hi,

 

I install Php-Java-Bridge on 2 differents debian and have the same error in
my php page :

Fatal error: Class 'Java' not found in /var/www/java.php on line 3

 

 

Can someone help me to find where is the problem

 

 

The first installation is with a debian package and the second one is from
the tarball.

 

The phpinfo page indicate that everything is ok :

java support      Enabled

java bridge         5.2.2

java.java_home              /usr/lib/jvm/java-6-sun

java.java             /usr/lib/jvm/java-6-sun/bin/java

java.log_file       /var/log/php-java-bridge.log

java.log_level   50

java.security_policy       Off

java command JAVA_HOME=/usr/lib/jvm/java-6-sun
LD_LIBRARY_PATH=/usr/lib/php5/20060613+lfs: /usr/lib/jvm/java-6-sun/bin/java
-Djava.library.path=/usr/lib/php5/20060613+lfs
-Djava.class.path=/usr/lib/php5/20060613+lfs/JavaBridge.jar
-Djava.awt.headless=true -Dphp.java.bridge.base=/usr/lib/php5/20060613+lfs
php.java.bridge.Standalone LOCAL:@java-bridge-8ff 50
/var/log/php-java-bridge.log

java server         @java-bridge-8ff

java status          running

 

 

Best regards,

 

HG

Hi,

> "getMessage()" in the cause, however, when we go
> to access the method
> directly, we get nothing.

that's because PHP's Exception::getMessage() shadows java.lang.Throwable.getMessage(). 

Please either use getLocalizedMessage() or access "message" directly (which invokes the Java Bean getter "getMessage") or pass the Java message to PHP's exception constructor.


> **note, we tried to override
> Java_Exception_Proxy::getMessage()
> directly, we received:
> 
> [16-May-2008 20:55:17] PHP Fatal error:  Cannot override
> final method
> Exception::getMessage() in .../java_exception_proxy.obj

That's why the bridge did not provide a resonable default for it. 

However, if you extend from Exception, you can access the $message property directly. The following code creates a new Exception and fills PHP's exception property with the exception obtained from Java:

<?php

require_once("java/Java.inc");
class my_JavaException extends java_InternalException {
  function __construct ($proxy, $message) { 
    $this->message = $message;
    parent::__construct($proxy->__delegate);
  }

}
class my_ThrowExceptionProxyFactory extends java_ThrowExceptionProxyFactory {
  function checkResult($result) {
	throw new my_JavaException ($result, $result->getCause()->message);
  }
}
$client = __javaproxy_Client_getClient();
$client->throwExceptionProxyFactory = 
         new my_ThrowExceptionProxyFactory($client);

// test
java_autoload("/home/jost/Test.jar");
try {
$test = new Test(true);
} catch (Exception $e) {
  echo $e->getMessage();
}


Regards,
Jost Boekemeier




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Thanks for your reply.  We still can see the cause and the
"getMessage()" in the cause, however, when we go to access the method
directly, we get nothing.

Here's where we're at now:

**note, we tried to override Java_Exception_Proxy::getMessage()
directly, we received:

[16-May-2008 20:55:17] PHP Fatal error:  Cannot override final method
Exception::getMessage() in .../java_exception_proxy.obj

classes implemented:

class Java_Exception_Proxy extends JavaException {
  private $result;
  
  public function __construct($result) { $this->result = $result; }
  
  public function getExceptionMessage() {
     return $this->result->getCause()->getMessage();
  }
}

class Throw_Exception_Proxy_Factory extends java_ThrowExceptionProxyFactory {
  public function checkResult($result) {
        throw new Java_Exception_Proxy($result);
  }
}


product side:
        require_once("java/Java.inc");

        $jbc=__javaproxy_Client_getClient();
        $jbc->throwExceptionProxyFactory = new Throw_Exception_Proxy_Factory($jbc);

        try {
                // in types.EmailAddress we're throwing a message:
                // throw new Exception("Sorry, your email address must contain a '@'.");
                $email = new Java("types.EmailAddress", $_POST['email']);
        } catch (Java_Exception_Proxy $ex) {
                // this gives us empty-ness or empty string
                echo $ex->getExceptionMessage();
        }


Thanks,


Zach

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-----Original Message-----
From: php...@li... <php...@li...>
To: php...@li...
Date: Friday, May 16, 2008, 10:41:52 AM
Subject: [Php-java-bridge-users] Handling Exceptions thrown from java on php side...

Hi,

[please excuse the delay]
 
> What I intended to say was, I was to get the
> Throwable::getMessage()
> from the php side.  We'd like to be able to use that
> for some user
> level messaging.  That method is giving us what we expect
> on the Java
> side, however, something seems to be lost in the php bridge
> translation.

It isn't lost. It's just stores the information in the cause. 

Isn't it possible to delegate to the throwable which caused the exception? You need to write your own JavaException factory within your product, but this shouldn't be too hard to do. For example (in pseudo code):

class my_JavaExceptionProxy extends JavaException {
  function $result;
  function my_JavaExceptionProxy ($result) { $this->result = $result; }
  function getMessage() {
     return $this->result->getCause()->getMessage();
   }
}
class my_ThrowExceptionProxyFactory extends java_ThrowExceptionProxyFactory {
  function checkResult($result) {
        throw new my_JavaException($result);
  }
}


In your product:

require_once("java/Java.inc");

// set our own Java exception factory
$client = __java_client->getClient();
$client->throwExceptionProxyFactory = 
  new my_ThrowExceptionProxyFactory($client);




Regards,
Jost Boekemeier



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Hi,

[please excuse the delay]
 
> What I intended to say was, I was to get the
> Throwable::getMessage()
> from the php side.  We'd like to be able to use that
> for some user
> level messaging.  That method is giving us what we expect
> on the Java
> side, however, something seems to be lost in the php bridge
> translation.

It isn't lost. It's just stores the information in the cause. 

Isn't it possible to delegate to the throwable which caused the exception? You need to write your own JavaException factory within your product, but this shouldn't be too hard to do. For example (in pseudo code):

class my_JavaExceptionProxy extends JavaException {
  function $result;
  function my_JavaExceptionProxy ($result) { $this->result = $result; }
  function getMessage() {
     return $this->result->getCause()->getMessage();
   }
}
class my_ThrowExceptionProxyFactory extends java_ThrowExceptionProxyFactory {
  function checkResult($result) {
	throw new my_JavaException($result);
  }
}


In your product:

require_once("java/Java.inc");

// set our own Java exception factory
$client = __java_client->getClient();
$client->throwExceptionProxyFactory = 
  new my_ThrowExceptionProxyFactory($client);




Regards,
Jost Boekemeier



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Hi,

>   Fatal error: Cannot redeclare java_last_exception_get() in
> http://localhost:8080/JavaBridge/java/Java.inc on line 1538

sounds like you use some other php to java bridge. Please either remove it or please contact your
vendor.

Please see our FAQ for details, please see: http://php-java-bridge.sourceforge.net/doc/faq.php


Regards,
Jost Boekemeier



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I forgot to attach the error I got while trying to access the demo php page on Indivo(http://localhost/indivo-ui-php-3.1/login.php):
   
  Fatal error: Cannot redeclare java_last_exception_get() in http://localhost:8080/JavaBridge/java/Java.inc on line 1538
   
  



       

Thanks for the quick replies.
   
  One question though, I am working on this project just for demo first, it means that I may not want to alter the openIndivo src code, is that still possible I can work through that?
   
  BTW, I am working on the window platform and have installed:
   
  JDK 1.5.13
  Tomcat5.5
  Apache Webserver 2.2.8
  PHP 5.2.5
  PHP-Java Bridge 5.2.2
   
  Thanks again for the help.
   
  -Lin

       
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Wow, that was a pretty poorly written sentence.  Sorry about that.

What I intended to say was, I was to get the Throwable::getMessage()
from the php side.  We'd like to be able to use that for some user
level messaging.  That method is giving us what we expect on the Java
side, however, something seems to be lost in the php bridge
translation.

Throwable::getCause() is giving us what we would expect (see below):


PHP:

try{
  $email_address_obj = new Java("type.Test", $email_address);
  return $email_address_obj;
} catch (JavaException $ex)
{
  echo "Cause: ".$ex->getCause()."\n"; // displaying a result
  echo "Message: ".(string) $ex->getMessage()."\n"; // not displaying result
}



Thanks,


Zach


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-----Original Message-----
From: php...@li... <php...@li...>
To: php...@li...
Date: Saturday, May 10, 2008, 2:38:31 PM
Subject: [Php-java-bridge-users] Handling Exceptions thrown from java on php side...

Hi,

> My issue is, I want to out the message Exception was instantiated

what do you mean with this?  $exception->getCause() contains all information you need. 

You could coerce the JavaException to that it prints a stack trace which is compatible with other
PHP exceptions, but this shouldn't be default, I think.





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Hi,

you could replace those instructions with these:

1) Install tomcat:
http://apache.atviraskodas.com/tomcat/tomcat-6/v6.0.16/bin/apache-tomcat-6.0.16.exe

2.) Copy JavaBridge.war (from the JavaBridge binary download) to tomcat's webapps directory

3.) Add the Java class definition (from "Java.inc") to OpenIndivio or use your own Java class, for
example this one: http://php-java-bridge.sourceforge.net/doc/faq.php#simple-java-class-definition.


Regards,
Jost Boekemeier




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Hi,

the Java extension for PHP 4  doesn't exist anymore. Please use the pure Java PHP/Java Bridge
instead. Please see our documentation at 

  http://php-java-bridge.sf.net

for details.


Regards,
Jost Boekemeier



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> Both files, the one that calls function and function itself have:
>   java_requre($mylib.jar);

I still think we should deprecate java_require() to avoid a misunderstanding like yours. --
Dynamic class loading is not really possible in Java.

However, we've decided to keep java_require() and to recomment standard Java class loading
instead.


> Do you mean that this causes problem here? 

The above code doesn't do what you think it does. Please re-read the java_require() documentation:

  http://php-java-bridge.sourceforge.net/doc/faq.php#java-require


> Do I have to delete this statement from called
> function?

Please remove the java_require() and copy your libraries to your J2EE server or copy them to
Java's global repository.


Regards,
Jost Boekemeier



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Hi,
   
  I am new for this user group, I have tried to install Indivo (opensource for Health Records). I have followed up the instruction from:
   
  http://wiki.indivohealth.org/index.php/Setting_Up_Your_UI_Server#Configuring_PHP_to_run_the_Bridge
   
  and can't come up with the view:
   
  Confirming Your Installation   Open phpinfo.php (included with the UI) in your browser. You should find a "java" section which notes that "java support" is "enabled" and that "java status" is "running". 
   
   
  instead I only keep getting:
   
  java
          Directive  Local Value  Master Value    java.class.path  no value  no value    java.home  no value  no value    java.library  jvm.dll  jvm.dll    java.library.path  no value  no value
   
   
  What could be wrong with what I have done? I followed all steps what the instruction describes, please help!
   
  Thanks,
   
  -Lin

       
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Hi,
   
  >In other words, you
>have more than one such library in your class path(s). 
   
  The code that causes problem here calls function from another file which create an instance 
  $projectFact=new Java("depths.moodle.ProjectsFactory",$sesame); 
Both files, the one that calls function and function itself have:
  java_requre($mylib.jar);
   
  Do you mean that this causes problem here? Do I have to delete this statement from called function?
   
  Zoran
  


php...@li... wrote:
  
> it seems that this is not an instance of this class.
> Can you give me any suggestions?

Moodle@ClassLoader1 is not assignment compatible with Moodle@ClassLoader2. In other words, you
have more than one such library in your class path(s). 

Please see our class loading FAQ for details.


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Hi,

> My issue is, I want to out the message Exception was instantiated

what do you mean with this?  $exception->getCause() contains all information you need. 

You could coerce the JavaException to that it prints a stack trace which is compatible with other
PHP exceptions, but this shouldn't be default, I think.





      Nicht vergessen! Am Sonntag, den 11. Mai ist Muttertag 
Geschenkideen, Gedichte & mehr: www.yahoo.de/muttertag