php-java-bridge-users Mailing List for PHP/Java Bridge (Page 85)

Hi, 
   
  When I try to create an Java instance I got this strange error message. It doesn't cause my program stop to work, but I'm confused about it, and why does it happen. Here is the complete code:
   
  try{
     $repository=new Java("depths.moodle.RepositoryFactory");
    if (!isset($repository)){
              throw new Exception("Could not create repository!");
       }
 } catch (Exception $e){
      echo "Error (File: " .$e->getFile().", line ".$e->getLine()."): ".$e->getCause() ." end of  message. <br>";
      echo "<br> ".$e->getMessage();
      echo "<br> ".$e;
 }

  $_SESSION['xy']="someValue";
$_SESSION['instance']=$repository;
   
  echo "Session xy=".$_SESSION['xy'];
echo "<br>";
if (isset($_SESSION['instance']))
{echo "instance exists";
echo "<br>";}
else{
 echo "instance does not exists";
}
?>
   
  Output of this page is as follows:
   
  Session xy=someValue
instance exists
protocol error: , Invalid document end at col 22. Check the back end log for details.
   
  Could you please indicate what did cause this error?
   
  Thanks,
  Zoran

       
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Hi,

I am using PHP/Java Bridge on Windows under PHP/Apache/Tomcat configuration.
On calling some of my JavaClasses from PHP, I observe an error saying
"maximum time of 60 seconds exceeded" from JavaBridge. Is this response
timeout parameter configurable? If Yes, Pls let me know where can I alter
it.

regds,
Bharti

Thank you! Yes, I understand that. Actually, I have already taken out
the if statment

if( $fuzzyRuleSet == null ) {

so I am running

$temp = $fuzzyRuleSet->toString();

directly, but it still give me an nullpointerexception. The method can
run in java just don't understand how come it cannot run in php. Any
other suggestions? Please! Thanks again!



On Fri, Mar 7, 2008 at 12:34 AM,
<php...@li...> wrote:
> > if( $fuzzyRuleSet == null ) {
>
> > $temp = $fuzzyRuleSet->toString();
> >
> > Even I take out the null test, the error still remains. Can anyone help? Thanks!
>
> The same argument applies to the above code, of course.
>
> Use
>
>  (string)$fuzzyRuleSet == null
>
> or better
>
>  is_null (java_values ($fuzzyRuleSet))
>
>
> for the test.
>
>
> Regards,
> Jost Boekemeier
>
>
>
>      Lesen Sie Ihre E-Mails auf dem Handy.
> www.yahoo.de/go
>
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>
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>

Hmm, well me again. Sorry to bother but i feel like a dumb. I can't get rid
of my problem and i don't really get all the faces of how to use the bridge
in the way i want to use it.

Thanks for the various INSTALL files which i haven't seen at first. It
helped me a bit though. What I understood is that the JavaBridgeRunner is
the entry point of the bridge. But how do I use it. It seems that I have to
open the socket myself? I am able to make my php communicates with my java
class and get the runner but after then...

I was actually thinking about using something like a stub on the php side,
which would connect to another JVM where my Java object is already
instanciated (something like RMI actually). Then I would have been able to
catch my parameters through that socket. Am I completely wrong and should
search in another direction or is it just that i missed something in the
'how to use' process?

Would you mind explaining me what i got wrong?

Thanks for your help

2008/3/4, php...@li... <
php...@li...>:
>
> Please see the INSTALL.STANDALONE for details how to invoke methods within
> a running Java process.
>
>
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-- 
#  !! brOl_oUilLe -->
<< bro...@gm... >>

Hi,

> $session = java_session();
> echo $session->getId();
> 
> 
> Uncaught [[o:Exception]:"java.lang.Exception: Invoke failed:
> [[o:RemoteHttpSessionFacade]]->getId. Cause: java.lang.NoSuchMethodException: getId().


the RemoteHttpSessionFacade doesn't have a getId(). Please see the API documentation for details.
http://php-java-bridge.cvs.sourceforge.net/*checkout*/php-java-bridge/php-java-bridge/server/documentation/API/index.html?revision=1.17

What you want is an instance of the HttpSession, not the HttpSessionFacade. The Session can be
obtained from the request object.


Regards,
Jost Boekemeier



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Hi,

> of the java/php bridge, but it sounds like this is nothing we really
> have to worry about then?

the bridge simply forwards the Java statements as soon as it receives them.

Other technologies such as Soap or XML-RPC have a much higher overhead. -- mod_jk goes even
further and forwards the entire script to the back end.


Regards,
Jost Boekemeier



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Right - I tried  but apparently the session per java_session() is not aware of such methods.

$session = java_session();

echo $session->getId();


Uncaught [[o:Exception]:"java.lang.Exception: Invoke failed: [[o:RemoteHttpSessionFacade]]->getId. Cause: java.lang.NoSuchMethodException: getId(). Candidates: [] Responsible VM: 1.5.0_09@http://java.sun.com/" at:\n#-5 php.java.bridge.JavaBridge.Invoke(JavaBridge.java:1040)\n#-4 php.java.bridge.Request.handleRequest(Request.java:409)\n#-3 php.java.bridge.Request.handleRequests(Request.java:485)\n#0 http://192.168.15.62:8080/JavaBridge/java/Java.inc(259): java_ThrowExceptionProxyFactory->getProxy(5, 'java.lang.Strin...', true)\n#1 http://192.168.15.62:8080/JavaBridge/java/Java.inc(409): java_Arg->getResult(true)\n#2 http://192.168.15.62:8080/JavaBridge/java/Java.inc(415): java_Client->getWrappedResult(true)\n#3 http://192.168.15.62:8080/JavaBridge/java/Java.inc(619): java_Client->getResult()\n#4 http://192.168.15.62:8080/JavaBridge/java/Java.inc(1730): java_Client->invokeMethod(1, 'getId', Array)\n#5 http://192.168.15.62:8080/JavaBridge/java/Java.inc(1843): java_JavaProxy->__call('getId', Array)

Thanks for the reference to the j2ee docs tho - those are always hard to come by.

~tim




Hi,

> I see the context and the session, however I am having trouble getting at the actual value of
> the java session id.

=> http://java.sun.com/j2ee/1.4/docs/api/javax/servlet/http/HttpSession.html#getId()


Hope it helps.


Regards,
Jost Boekemeier

i am not concerned about the java backend, i was just concerned if
there for some reason overhead (in terms of speed/memory) is because
of the java/php bridge, but it sounds like this is nothing we really
have to worry about then?

cheers,

RJ


On 3/6/08, php...@li... > Well, the
bridge simply forwards the Java calls to the J2EE back end.
>
> If one back end cannot handle the load anymore, just add another one. Please
> see the "How do I set
> up a J2EE cluster" from our FAQ for details.
>
>
> Regards,
> Jost Boekemeier
>

thanks for the reply. i could be wrong, it's like moving the overhead to the
script rather than leaving it in java.so

On Fri, Mar 7, 2008 at 7:31 PM, <php...@li...>
wrote:

> Hi,
>
> >, why
> > can't you push all the java functions into java.so?
>
> Because of the additional overhead for class registration.
>
> Do you really want to create a Java class in each of your scripts?
>
>
> Regards,
> Jost Boekemeier
>
>
>
>      Lesen Sie Ihre E-Mails auf dem Handy.
> www.yahoo.de/go
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
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> php-java-bridge-users mailing list
> php...@li...
> https://lists.sourceforge.net/lists/listinfo/php-java-bridge-users
>

> if( $fuzzyRuleSet == null ) {

> $temp = $fuzzyRuleSet->toString();
> 
> Even I take out the null test, the error still remains. Can anyone help? Thanks!

The same argument applies to the above code, of course.

Use 

  (string)$fuzzyRuleSet == null 

or better 

  is_null (java_values ($fuzzyRuleSet))


for the test.


Regards,
Jost Boekemeier



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Hi,

>, why
> can't you push all the java functions into java.so?

Because of the additional overhead for class registration.

Do you really want to create a Java class in each of your scripts?


Regards,
Jost Boekemeier



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Thanks for the help. But the

if( $fis == null )

is not the cause of the error. The error is from

$temp = $fuzzyRuleSet->toString();

Even I take out the null test, the error still remains. Can anyone help? Thanks!



On Wed, Mar 5, 2008 at 1:57 AM,
<php...@li...> wrote:
> > > if( $fis == null ) {
>  >
>  > The above test is invalid. $fis is an object representing Java NULL, not a PHP null pointer.
>
>  BTW: a PHP null value should be tested with is_null(...), see your PHP documentation
>
>
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>

Hi,

thanks, that explains it. I was just wondering why would you call it a bug:)
- cos having to include Java.inc in every script is really annoying, why
can't you push all the java functions into java.so?

Rong


On Fri, Mar 7, 2008 at 3:23 AM, <php...@li...>
wrote:

> Hi,
>
> > well, for v4 and v5.0 i didn't need to include Java.inc,
>
> yes, this was a bug in java.so. Please see the NEWS file for version 5.2.0for details.
>
> However, unless you use PHP 4, you need to include Java.inc, if you want
> to access the Java class
> or the java() function.
>
>
> Regards,
> Jost Boekemeier
>
>
>
>      Lesen Sie Ihre E-Mails auf dem Handy.
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>
> -------------------------------------------------------------------------
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>

Hi,

> Now, our main concern is the performance of the php/java bridge; our
> website will have many visitors (and logged in users), and we would
> like to know that we do not get into performance problems further down
> the road.

Well, the bridge simply forwards the Java calls to the J2EE back end.

If one back end cannot handle the load anymore, just add another one. Please see the "How do I set
up a J2EE cluster" from our FAQ for details.


Regards,
Jost Boekemeier



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Hi,

> well, for v4 and v5.0 i didn't need to include Java.inc,

yes, this was a bug in java.so. Please see the NEWS file for version 5.2.0 for details.

However, unless you use PHP 4, you need to include Java.inc, if you want to access the Java class
or the java() function.


Regards,
Jost Boekemeier



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well, for v4 and v5.0 i didn't need to include Java.inc, in fact i didn't
have the file at all and it worked well, weird...

On Thu, Mar 6, 2008 at 10:59 PM, <
php...@li...> wrote:

> Hi,
>
> I don't understand this problem.  The linux setup creates java/Java.inc in
> the standard include
> path. The PHP windows versions, which don't have a proper include path,
> use the current working
> directory instead.
>
> What's the problem with this setting?
>
>
> Regards,
> Jost Boekemeier
>
>
>
>
>      Machen Sie Yahoo! zu Ihrer Startseite. Los geht's:
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>
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> php...@li...
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>

Hi,

> I see the context and the session, however I am having trouble getting at the actual value of
> the java session id.

=> http://java.sun.com/j2ee/1.4/docs/api/javax/servlet/http/HttpSession.html#getId()


Hope it helps.


Regards,
Jost Boekemeier



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Hi,

I don't understand this problem.  The linux setup creates java/Java.inc in the standard include
path. The PHP windows versions, which don't have a proper include path, use the current working
directory instead.

What's the problem with this setting?


Regards,
Jost Boekemeier




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Hi all,

I have been using PHP/Java bridge for a while, I guess a lot ppl might have
the similar feeling as me about it which is once it's set up properly, it
works great:)

I have installed v4, and v5.0 from source on different platforms, without
tomcat or servlet, and none of them required me to have a line like
"require_once('Java.inc')" in my php scripts. Although I did notice that in
the FAQ (in the source package) it does say "Java.inc must be included
before it can be used", it worked well for me without that line and I took
it that "it" in that claim must be meaning something else:)

Everything was fine until today when I started using 5.2. I did the same
configuration as I did before, and it seems it's started properly (from
phpinfo()), but this time it didn't do the trick, without that line I
couldn't use anything starting with "java", like "java_require()", it keeps
saying "*Fatal error*: Call to undefined function java_require()". So I
copied Java.inc in the source package to my script directory and added that
line, everything started working again.

So anyone could please explain why I didn't need Java.inc but now I have to
have it? If I do need it, where is the best place to find it and to store
it, in other words, will it change over time? why did the installation
script not copy it to a proper directory? Maybe for ppl using tomcat or
servlet, they can extract it from JavaBridge.jar, isn't it troublesome for
ppl without them?

Thanks.

Rong

Hi JavaBridge list,

I see the context and the session, however I am having trouble getting at the actual value of the java session id.

Thoughts?
~tim

Hi,

for our current project we are looking around for what kind of
technologies we want to use for the website.
We ideally would like to have Java for the logic, but we are not too
thrilled by any of the java frameworks for the web front end.
PHP gives us exactly the kind of freedom we want for the front end,
but we would like to use it purely for displaying content, and do not
want to have any complex logic.
Hence, the PHP / Java bridge sounds like the perfect solution.

Now, our main concern is the performance of the php/java bridge; our
website will have many visitors (and logged in users), and we would
like to know that we do not get into performance problems further down
the road.

Has anyone used the bridge for a website with high traffic, and is
willing to share their experiences with it so far?

Has anyone performed tests to measure how the bridge performs when
under pressure?
Got any tips on how to perform such tests the best way (e.g.
suggestions for tools that can help us) ?

thanks much for any information you can provide us,

RJ

> > if( $fis == null ) {
> 
> The above test is invalid. $fis is an object representing Java NULL, not a PHP null pointer.

BTW: a PHP null value should be tested with is_null(...), see your PHP documentation


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Hi,

> if( $fis == null ) {

The above test is invalid. $fis is an object representing Java NULL, not a PHP null pointer.

Please re-read the NEWS file for version 5.0.0 or the PHP/Java Bridge documentation.



Regards,
Jost Boekemeier



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ignore my previous post. i was me careless, the method
works like a charm!finaly i got java running with php
thanks 
--- php...@li... wrote:

> Hi,
> 
> > 2. as for tomcat. any idea how would my
> php(apache)
> > communicate with java(tomcat) 
> 
> please see the INSTALL.J2EE document for details.
> 
> 
> IBM has a more detailed description at:
> 
>
http://www.ibm.com/developerworks/aix/library/au-javaphpaix5/
> 
> 
> 
> 
> 
>       Jetzt Mails schnell in einem Vorschaufenster
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> 
>
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> 2008.
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> _______________________________________________
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> php...@li...
>
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> 



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hi,
 the link works very well except when i call java from
my php, i get.  could it be the issue with my java
installation ? thanks in advance 

Fatal error: Uncaught
[[o:Exception]:"java.lang.Exception: CreateInstance
failed: new �javalangSystem�. Cause:
java.lang.ClassNotFoundException: �javalangSystem�
VM: 1.5.0_05@http://java.sun.com/" at: #-25
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1360)
#-24
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1206)
#-23 java.lang.ClassLoader.loadClassInternal(Unknown
Source) #0
http://127.0.0.1:8080/JavaBridge/java/Java.inc(259):
java_ThrowExceptionProxyFactory->getProxy(1, NULL,
false) #1
http://127.0.0.1:8080/JavaBridge/java/Java.inc(411):
java_Arg->getResult(false) #2
http://127.0.0.1:8080/JavaBridge/java/Java.inc(414):
java_Client->getWrappedResult(false) #3
http://127.0.0.1:8080/JavaBridge/java/Java.inc(596):
java_Client->getInternalResult() #4
http://127.0.0.1:8080/JavaBridge/java/Java.inc(1947):
java_Client->createObject('?javalangSystem...', Array)
#5 C:\Program Files\Apache Software
Foundation\Apache2.2\htdocs\test1.php(5):
Java->Java('?javalan in
http://127.0.0.1:8080/JavaBridge/java/Java.inc on line
222

 


--- php...@li... wrote:

> Hi,
> 
> > 2. as for tomcat. any idea how would my
> php(apache)
> > communicate with java(tomcat) 
> 
> please see the INSTALL.J2EE document for details.
> 
> 
> IBM has a more detailed description at:
> 
>
http://www.ibm.com/developerworks/aix/library/au-javaphpaix5/
> 
> 
> 
> 
> 
>       Jetzt Mails schnell in einem Vorschaufenster
> überfliegen. Dies und viel mehr bietet das neue
> Yahoo! Mail - www.yahoo.de/mail
> 
>
-------------------------------------------------------------------------
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> Defy all challenges. Microsoft(R) Visual Studio
> 2008.
>
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> php-java-bridge-users mailing list
> php...@li...
>
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> 



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