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

On 3/21/07, php...@li... <
php...@li...> wrote:
>
> Hi,
>
> [please excuse the delay]


No problem. Thanks a lot for the help you're providing.

> When I run the install.sh script it overwrites my
> > php.ini with the PHP/Java Bridge configuration.
>
> It doesn't do this if you php installation supports an
> /etc/php.d/ directory. Please see the php --configure
> help for details (php's configure, not the bridge
> configure script).
>
>
> > install.sh created to my original php.ini, the
> > extension just doesn't load.
>
> The only thing the extension need is a
>
>   extension=3Djava.so
>
> entry.


Ok... it took me a while but I finally got it working. It was one of those
time when you try hundreds of different things and by the end you don't kno=
w
if what you're trying you have already done it or not.
The thing is that my php.ini was loading the extensions from extension_dir =
=3D
"/usr/local/php/lib/extensions/" and the java.so was installed on
/usr/local/php/lib/extensions/no-debug-non-zts-20050922/
What I don't know is why it didn't work when I copied every file from
usr/local/php/lib/extensions/no-debug-non-zts-20050922/ to
/usr/local/php/lib/extensions/
Is there any way to change that installation path while configuring PHP/Jav=
a
Bridge?



> In a previous email, Jost told me that PHP/Java
> > Bridge does not care about
> > CLASSPATH variable,
>
> Some older JDK may still read the CLASSPATH
> environment variable. But since Apache discards all
> environment variables and executes in a clean
> environment you cannot pass it to the VM (if you want
> to run the VM as a sub-component of Apache).


Not even using putenv PHP function? Because I use that to configure some
Oracle stuff.

> getSystemResource method of the ClassLoader
>
> It should find the resources in the standard Java
> repository, which is /usr/share/java/ext or
> /usr/java/packages/lib/ext.
>
>
> > So, how should I indicate where those
>
> Just modify the standard location using the
> -Djava.ext.dirs=3D... option. If you want to pass this
> option from Apache, use a wrapper script, please see
> our FAQ for details.


I saw the FAQ... does it mean that I should start Apache with apachectl -D
java.ext.dirs=3D/path/to/my/confs ?
I would rather work something out that did not envolve having to modify
startup configuration.
I'm using this to work with a java api, which would be a quite small part o=
f
a much larger application and would like to make it easier to deploy becaus=
e
most probably I won't be installing it.

BTW: Isn't that backwards? If you want to load
> resources from a user dir, why don't you simply use
> getResource() instead of getSystemResource()?


Might be. I read something  like that, the problem is that  the
getSystemResource call is made from  the API I'm working with (which source
I don't have), and I have to work with that.

Best regards,

Andr=E9s Gattinoni


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--=20
Andr=E9s Gattinoni
(=AF`=B7._.=B7[El Barto(r)]=B7._.=B7=B4=AF) (...)

Hi,

> helloworld/Main). -- Unable to call constructor, see
> the README section "Java platform issues" for
> details.
> Am I missing something trivial here?

I think this is explained in the README section "Java
platform issues".


> Are there any good tutorials on how to get java code
> called from php and working?

What's wrong with the "loading user libraries" section
from the README?  :)


Regards,
Jost Boekemeier



		
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Hi,

[please excuse the delay]


> When I run the install.sh script it overwrites my
> php.ini with the PHP/Java Bridge configuration.

It doesn't do this if you php installation supports an
/etc/php.d/ directory. Please see the php --configure
help for details (php's configure, not the bridge
configure script).


> install.sh created to my original php.ini, the
> extension just doesn't load.

The only thing the extension need is a

  extension=java.so 

entry.


> In a previous email, Jost told me that PHP/Java
> Bridge does not care about
> CLASSPATH variable, 

Some older JDK may still read the CLASSPATH
environment variable. But since Apache discards all
environment variables and executes in a clean
environment you cannot pass it to the VM (if you want
to run the VM as a sub-component of Apache).


> getSystemResource method of the ClassLoader

It should find the resources in the standard Java
repository, which is /usr/share/java/ext or
/usr/java/packages/lib/ext.


> So, how should I indicate where those

Just modify the standard location using the
-Djava.ext.dirs=... option. If you want to pass this
option from Apache, use a wrapper script, please see
our FAQ for details.

BTW: Isn't that backwards? If you want to load
resources from a user dir, why don't you simply use
getResource() instead of getSystemResource()? 


Regards,
Jost Boekemeier





	
		
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Maybe if you'd copy your java code it could help.

The name of your class is Main? is it public?

Andr=E9s Gattinoni

On 3/21/07, php...@li... <
php...@li...> wrote:
>
>
> Hi,
>
> I need some advice, I'm trying to use my own java class in php using
>
> Apache 2.2.4
> PHP 5.2.1
> Java Bridge 4.0.1 as doubleclicked  JavaBridge.jar (8080)
>
> and the following code works:
>
> <?php
> require_once("http://localhost:8080/JavaBridge/java/Java.inc");
> java_require("http://localhost/Main.jar");
>
> $s =3D new Java("java.lang.String", "hello");
> echo $s;
>
> ?>
>
> When I try to call the constructor of my Main class however, I get an
> exception:
>
> <?php
>
> $test =3D new Java("Main");
>
> ?>
>
> javabridge.log:
>
> Mar 21 15:12:14 JavaBridge ERROR: An exception occured:
> java.lang.ClassNotFoundException: Unresolved external reference:
> java.lang.NoClassDefFoundError: Main (wrong name: helloworld/Main). --
> Unable to call constructor, see the README section "Java platform issues"
> for details.
> java.lang.ClassNotFoundException: Unresolved external reference:
> java.lang.NoClassDefFoundError: Main (wrong name: helloworld/Main). --
> Unable to call constructor, see the README section "Java platform issues"
> for details.
>         at
> php.java.bridge.JavaBridge.getUnresolvedExternalReferenceException(
> JavaBridge.java:477)
>         at php.java.bridge.JavaBridge.CreateObject(JavaBridge.java:545)
>         at php.java.bridge.Request.handleRequest(Request.java:353)
>         at php.java.bridge.Request.handleRequests(Request.java:388)
>         at php.java.bridge.http.ContextRunner.run(ContextRunner.java:186)
>         at php.java.bridge.BaseThreadPool$Delegate.run(BaseThreadPool.jav=
a
> :66)
> Caused by: java.lang.NoClassDefFoundError: Main (wrong name:
> helloworld/Main)
>         at java.lang.ClassLoader.defineClass1(Native Method)
>         at java.lang.ClassLoader.defineClass(Unknown Source)
>         at java.security.SecureClassLoader.defineClass(Unknown Source)
>         at java.net.URLClassLoader.defineClass(Unknown Source)
>         at java.net.URLClassLoader.access$000(Unknown Source)
>         at java.net.URLClassLoader$1.run(Unknown Source)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(Unknown Source)
>         at java.lang.ClassLoader.loadClass(Unknown Source)
>         at java.lang.ClassLoader.loadClass(Unknown Source)
>         at php.java.bridge.DynamicClassLoader.loadClass(
> DynamicClassLoader.java:390)
>         at php.java.bridge.DynamicJavaBridgeClassLoader.loadClass(
> DynamicJavaBridgeClassLoader.java:291)
>         at java.lang.ClassLoader.loadClassInternal(Unknown Source)
>         at java.lang.Class.forName0(Native Method)
>         at java.lang.Class.forName(Unknown Source)
>         at php.java.bridge.SimpleJavaBridgeClassLoader.forName(
> SimpleJavaBridgeClassLoader.java:188)
>         at php.java.bridge.JavaBridge.CreateObject(JavaBridge.java:495)
>         ... 4 more
>
>
> Am I missing something trivial here?
> Are there any good tutorials on how to get java code called from php and
> working?
>
> Thanks for reading
> Timo
> _______________________________________________________________
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>
>
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> your
> opinions on IT & business topics through brief surveys-and earn cash
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> _______________________________________________
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>



--=20
Andr=E9s Gattinoni
(=AF`=B7._.=B7[El Barto(r)]=B7._.=B7=B4=AF) (...)

Hi, 

I need some advice, I'm trying to use my own java class in php using

Apache 2.2.4
PHP 5.2.1
Java Bridge 4.0.1 as doubleclicked  JavaBridge.jar (8080)

and the following code works:

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

$s = new Java("java.lang.String", "hello");
echo $s;

?>

When I try to call the constructor of my Main class however, I get an exception:

<?php

$test = new Java("Main");

?>

javabridge.log:

Mar 21 15:12:14 JavaBridge ERROR: An exception occured: java.lang.ClassNotFoundException: Unresolved external reference: java.lang.NoClassDefFoundError: Main (wrong name: helloworld/Main). -- Unable to call constructor, see the README section "Java platform issues" for details.
java.lang.ClassNotFoundException: Unresolved external reference: java.lang.NoClassDefFoundError: Main (wrong name: helloworld/Main). -- Unable to call constructor, see the README section "Java platform issues" for details.
	at php.java.bridge.JavaBridge.getUnresolvedExternalReferenceException(JavaBridge.java:477)
	at php.java.bridge.JavaBridge.CreateObject(JavaBridge.java:545)
	at php.java.bridge.Request.handleRequest(Request.java:353)
	at php.java.bridge.Request.handleRequests(Request.java:388)
	at php.java.bridge.http.ContextRunner.run(ContextRunner.java:186)
	at php.java.bridge.BaseThreadPool$Delegate.run(BaseThreadPool.java:66)
Caused by: java.lang.NoClassDefFoundError: Main (wrong name: helloworld/Main)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$000(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at php.java.bridge.DynamicClassLoader.loadClass(DynamicClassLoader.java:390)
	at php.java.bridge.DynamicJavaBridgeClassLoader.loadClass(DynamicJavaBridgeClassLoader.java:291)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at php.java.bridge.SimpleJavaBridgeClassLoader.forName(SimpleJavaBridgeClassLoader.java:188)
	at php.java.bridge.JavaBridge.CreateObject(JavaBridge.java:495)
	... 4 more


Am I missing something trivial here?
Are there any good tutorials on how to get java code called from php and working?

Thanks for reading
Timo
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I've sent this message before but it was a little off-topic in a thread tha=
t
I should have assumed closed when you help me to make my script work.

I'm sending my questions again, not to be persistent, but to be a little
more organized.

Two questions came up:

1)
When I run the install.sh script it overwrites my php.ini with the PHP/Java
Bridge configuration.
It does not bother me right now because I'm not using any special
configuration, but when I go on production I will need my php.ini file. The
problem is that if I append the lines of the php.ini file that the
install.sh created to my original php.ini, the extension just doesn't load.
Is there any consideration that I should take into account before merging
both ini files?


2)
In a previous email, Jost told me that PHP/Java Bridge does not care about
CLASSPATH variable, and here comes my problem. I have to implement an API
which uses some XML files for its configuration. The xml is loaded using th=
e
getSystemResource method of the ClassLoader, which looks for a certain file
on the classpath as I understand. So, how should I indicate where those
files are using PHP/Java Bridge?
Right now I just added the path to the conf/ folder to the CLASSPATH and
everything worked.

Thanks

Andr=E9s Gattinoni

Hi,

> Security issues and performance. The platform
> doesn't allow for "external" includes to run. 

Why don't you store the Java.inc into the pear folder?


> Besides, the performance hit of the pure php 

When a php opcode cache is used, the pure php
implementation is only two times slower than the C
implementation. I don't think this is a problem.

The most expensive part are network round-trips
anyway, which can be avoided by encapsulating the PHP
code with   java_begin_document()/java_end_document().


> what i did... From my research on the net, there are
> loads of "gray" 
> areas unanswered, regarding compiling stuff in
> windows...

No surprise. Zend wants to sell their products. :)


Regards,
Jost Boekemeier





	
		
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>> Mind that i'm not a C programmer... but a PHP one...
>>     
>
> Why don't you use the pure PHP implementation instead?
>   
Security issues and performance. The platform doesn't allow for 
"external" includes to run. Besides, the performance hit of the pure php 
implementation isn't acceptable for production purposes.

Anyway, i will do as you suggest...

Probably i will just start over from scratch and write a "manual" of 
what i did... From my research on the net, there are loads of "gray" 
areas unanswered, regarding compiling stuff in windows...

BTW is the c version being updated as well? Or it doesn't require any 
update so far?

Thanx for the assistance,
Luis Ferro

>
> Regards,
> Jost Boekemeier
>
>
>
>
>   

Hi,

> The problem is that i'm in position of compiling all
> the c files, but i 
> get errors because the "ZEND_API" isn't defined
> anywhere in the environment.

you can define it to empty. We've had a patch for it
some time ago. But since sourceforge.net has nuked its
compile server, these files are gone.

> Anyone has an hint on how to find it to glue it?

At least in 5.0.5 there were three changes necessary
to compile the Zend code with gcc.

I think the easiest way is to use the microsoft
compiler and the make file that comes with php.

I think there is/was a howto in the mailing list
archives.

 
> Mind that i'm not a C programmer... but a PHP one...

Why don't you use the pure PHP implementation instead?


Regards,
Jost Boekemeier





	
		
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