Applet Help
|
View:
New views
6 Messages
—
Rating Filter:
Alert me
|
 |
Applet Help
by Neil M.
::
Rate this Message:
Hi, I'm trying to run a Java Applet with a Java Swing GUI but using a
python library as a backed. I've packed it all into a .jar that runs fine as a standalone Java app. When I move it to the webserver it seems to be issuing HTTP requests (see attached log) for various imports and I have no idea why. Something with the classpath or pythonpath? Any ideas? Neil --------------- modified jython factory ---------------------- public static Object getJythonObject(String interfaceName, String pathToJythonModule){ Object javaInt = null; PythonInterpreter interpreter = new PythonInterpreter(); //interpreter.execfile(pathToJythonModule); interpreter.exec("import " + pathToJythonModule); //String tempName = pathToJythonModule.substring(pathToJythonModule.lastIndexOf("/")+1); String tempName = pathToJythonModule.substring(pathToJythonModule.lastIndexOf(".")+1); //tempName = tempName.substring(0, tempName.indexOf(".")); //System.out.println(tempName); String instanceName = tempName.toLowerCase(); String javaClassName = tempName.substring(0,1).toUpperCase() + tempName.substring(1); //String objectDef = "=" + javaClassName + "()"; String objectDef = "=" + pathToJythonModule + "." + javaClassName + "()"; interpreter.exec(instanceName + objectDef); //System.out.println(instanceName + objectDef); try { Class JavaInterface = Class.forName(interfaceName); javaInt = interpreter.get(instanceName).__tojava__(JavaInterface); } catch (ClassNotFoundException ex) { ex.printStackTrace(); // Add logging here } return javaInt; } -------------------- HTTP Log -------------------- [Sun Jun 14 18:50:40 2009] [error] [client X] File does not exist: /download_test/stat$py.class [Sun Jun 14 18:50:41 2009] [error] [client X] File does not exist: /download_test/stat$py.class [Sun Jun 14 18:50:42 2009] [error] [client X] File does not exist: /download_test/java [Sun Jun 14 18:50:45 2009] [error] [client X] File does not exist: /download_test/java [Sun Jun 14 18:50:46 2009] [error] [client X] File does not exist: /download_test/java [Sun Jun 14 18:50:46 2009] [error] [client X] File does not exist: /download_test/java [Sun Jun 14 18:50:47 2009] [error] [client X] File does not exist: /download_test/org.class [Sun Jun 14 18:50:47 2009] [error] [client X] File does not exist: /download_test/org.class [Sun Jun 14 18:50:48 2009] [error] [client X] File does not exist: /download_test/org [Sun Jun 14 18:50:48 2009] [error] [client X] File does not exist: /download_test/org [Sun Jun 14 18:50:49 2009] [error] [client X] File does not exist: /download_test/org [Sun Jun 14 18:50:50 2009] [error] [client X] File does not exist: /download_test/org ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Jython-users mailing list Jython-users@... https://lists.sourceforge.net/lists/listinfo/jython-users |
|
|
Re: Applet Help
by Josh Juneau-3
::
Rate this Message:
Neil-
It seems from your example like you are passing a string representation of the path to the Python modules. That is one way of performing this task. Another way is to place the modules somewhere in your sys.path and pass just the name of the module instead of the complete path. You can take a look at an article submitted to Jython Monthly by Charlie Groves for more information: http://wiki.python.org/jython/JythonMonthly/Articles/October2006/3 on this technique. You'd have to modify your code a bit, but this may be one way to get around these errors. I am not exactly sure why you are receiving the errors unless the modules are not available to the web server in the designated path that you are sending to the factory. Hope this gets you headed in the right direction for resolving the errors. Josh Juneau juneau001@... http://jj-blogger.blogspot.com Twitter ID: javajuneau On Mon, Jun 15, 2009 at 12:16 PM, Neil M. <nabber00@...> wrote: Hi, I'm trying to run a Java Applet with a Java Swing GUI but using a ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Jython-users mailing list Jython-users@... https://lists.sourceforge.net/lists/listinfo/jython-users |
|
|
Re: Applet Help
by Neil M.
::
Rate this Message:
Thanks, I guess should explain some more. First, I'm using Jython 2.5 RC4
if that makes a difference. Also, the files do not exist on the webserver nor do I want them to be there, the .class and .py files (along with all of jython) are included in the .jar file and I expect it to just find and load those. I don't want to see any HTTP requests like I'm seeing because it is unbearably slow to load the applet that way. I changed the way the factory gets called, for example I do this to get a class: JythonFactory jf = JythonFactory.getInstance(); Downloader eType = (Downloader) jf.getJythonObject( "jyinterface.Downloader", "JDownloader"); There is a corresponding Downloader.class and JDownloader.py file included in the .jar. So it should just be looking in classpath and sys.path to import things? I don't understand why it is hitting the webserver to do this. I figure it must be a classpath or pythonpath issue? Neil > Neil- > > It seems from your example like you are passing a string representation of > the path to the Python modules. That is one way of performing this task. > Another way is to place the modules somewhere in your sys.path and pass > just > the name of the module instead of the complete path. You can take a look > at > an article submitted to Jython Monthly by Charlie Groves for more > information: > http://wiki.python.org/jython/JythonMonthly/Articles/October2006/3 on this > technique. You'd have to modify your code a bit, but this may be one way > to > get around these errors. > > I am not exactly sure why you are receiving the errors unless the modules > are not available to the web server in the designated path that you are > sending to the factory. > > Hope this gets you headed in the right direction for resolving the errors. > > Josh Juneau > juneau001@... > http://jj-blogger.blogspot.com > Twitter ID: javajuneau > > > On Mon, Jun 15, 2009 at 12:16 PM, Neil M. <nabber00@...> wrote: > >> Hi, I'm trying to run a Java Applet with a Java Swing GUI but using a >> python library as a backed. I've packed it all into a .jar that runs >> fine as a standalone Java app. When I move it to the webserver it seems >> to be issuing HTTP requests (see attached log) for various imports and I >> have no idea why. Something with the classpath or pythonpath? Any >> ideas? >> >> Neil >> >> --------------- modified jython factory ---------------------- >> public static Object getJythonObject(String interfaceName, >> String pathToJythonModule){ >> >> Object javaInt = null; >> PythonInterpreter interpreter = new PythonInterpreter(); >> //interpreter.execfile(pathToJythonModule); >> interpreter.exec("import " + pathToJythonModule); >> //String tempName = >> pathToJythonModule.substring(pathToJythonModule.lastIndexOf("/")+1); >> String tempName = >> pathToJythonModule.substring(pathToJythonModule.lastIndexOf(".")+1); >> //tempName = tempName.substring(0, tempName.indexOf(".")); >> //System.out.println(tempName); >> String instanceName = tempName.toLowerCase(); >> String javaClassName = tempName.substring(0,1).toUpperCase() + >> tempName.substring(1); >> //String objectDef = "=" + javaClassName + "()"; >> String objectDef = "=" + pathToJythonModule + "." + javaClassName >> + "()"; >> interpreter.exec(instanceName + objectDef); >> //System.out.println(instanceName + objectDef); >> try { >> Class JavaInterface = Class.forName(interfaceName); >> javaInt = >> interpreter.get(instanceName).__tojava__(JavaInterface); >> } catch (ClassNotFoundException ex) { >> ex.printStackTrace(); // Add logging here >> } >> >> return javaInt; >> } >> >> >> -------------------- HTTP Log -------------------- >> >> [Sun Jun 14 18:50:40 2009] [error] [client X] File does not exist: >> /download_test/stat$py.class >> >> [Sun Jun 14 18:50:41 2009] [error] [client X] File does not exist: >> /download_test/stat$py.class >> [Sun Jun 14 18:50:42 2009] [error] [client X] File does not exist: >> /download_test/java >> [Sun Jun 14 18:50:45 2009] [error] [client X] File does not exist: >> /download_test/java >> [Sun Jun 14 18:50:46 2009] [error] [client X] File does not exist: >> /download_test/java >> [Sun Jun 14 18:50:46 2009] [error] [client X] File does not exist: >> /download_test/java >> [Sun Jun 14 18:50:47 2009] [error] [client X] File does not exist: >> /download_test/org.class >> [Sun Jun 14 18:50:47 2009] [error] [client X] File does not exist: >> /download_test/org.class >> [Sun Jun 14 18:50:48 2009] [error] [client X] File does not exist: >> /download_test/org >> [Sun Jun 14 18:50:48 2009] [error] [client X] File does not exist: >> /download_test/org >> [Sun Jun 14 18:50:49 2009] [error] [client X] File does not exist: >> /download_test/org >> [Sun Jun 14 18:50:50 2009] [error] [client X] File does not exist: >> /download_test/org >> >> >> ------------------------------------------------------------------------------ >> Crystal Reports - New Free Runtime and 30 Day Trial >> Check out the new simplified licensing option that enables unlimited >> royalty-free distribution of the report engine for externally facing >> server and web deployment. >> http://p.sf.net/sfu/businessobjects >> _______________________________________________ >> Jython-users mailing list >> Jython-users@... >> https://lists.sourceforge.net/lists/listinfo/jython-users >> > ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Jython-users mailing list Jython-users@... https://lists.sourceforge.net/lists/listinfo/jython-users |
|
|
Re: Applet Help
by Josh Juneau-3
::
Rate this Message:
Have you tried to run the application using JNLP yet? If it works as a standalone JAR then it will probably work with JNLP. However, even if it does work then this is not really a resolution for your issue. Can you tell us what application server and Java version that you are running?
Josh Juneau juneau001@... http://jj-blogger.blogspot.com Twitter ID: javajuneau On Mon, Jun 15, 2009 at 3:40 PM, Neil M. <nabber00@...> wrote: Thanks, I guess should explain some more. First, I'm using Jython 2.5 RC4 ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Jython-users mailing list Jython-users@... https://lists.sourceforge.net/lists/listinfo/jython-users |
|
|
Re: Applet Help
by Neil M.
::
Rate this Message:
Nope, haven't tried JNLP yet.
Well the application server is just Apache. I'm not running JSP or anything like that, its not a servlet, just a normal applet with the "applet" HTML tag. Java SDK 1.6.0 update 12. Neil Josh Juneau wrote: > Have you tried to run the application using JNLP yet? If it works as a > standalone JAR then it will probably work with JNLP. However, even if > it does work then this is not really a resolution for your issue. Can > you tell us what application server and Java version that you are running? > > > Josh Juneau > juneau001@... <mailto:juneau001@...> > http://jj-blogger.blogspot.com > Twitter ID: javajuneau > > > On Mon, Jun 15, 2009 at 3:40 PM, Neil M. <nabber00@... > <mailto:nabber00@...>> wrote: > > Thanks, I guess should explain some more. First, I'm using Jython > 2.5 RC4 > if that makes a difference. Also, the files do not exist on the > webserver > nor do I want them to be there, the .class and .py files (along with all > of jython) are included in the .jar file and I expect it to just > find and > load those. I don't want to see any HTTP requests like I'm seeing > because > it is unbearably slow to load the applet that way. > > I changed the way the factory gets called, for example I do this to > get a > class: > > JythonFactory jf = JythonFactory.getInstance(); > Downloader eType = (Downloader) jf.getJythonObject( > "jyinterface.Downloader", "JDownloader"); > > > There is a corresponding Downloader.class and JDownloader.py file > included > in the .jar. > > So it should just be looking in classpath and sys.path to import things? > I don't understand why it is hitting the webserver to do this. I figure > it must be a classpath or pythonpath issue? > > Neil > > > Neil- > > > > It seems from your example like you are passing a string > representation of > > the path to the Python modules. That is one way of performing > this task. > > Another way is to place the modules somewhere in your sys.path and > pass > > just > > the name of the module instead of the complete path. You can take > a look > > at > > an article submitted to Jython Monthly by Charlie Groves for more > > information: > > http://wiki.python.org/jython/JythonMonthly/Articles/October2006/3 > on this > > technique. You'd have to modify your code a bit, but this may be > one way > > to > > get around these errors. > > > > I am not exactly sure why you are receiving the errors unless the > modules > > are not available to the web server in the designated path that > you are > > sending to the factory. > > > > Hope this gets you headed in the right direction for resolving the > errors. > > > > Josh Juneau > > juneau001@... <mailto:juneau001@...> > > http://jj-blogger.blogspot.com > > Twitter ID: javajuneau > > > > > > On Mon, Jun 15, 2009 at 12:16 PM, Neil M. <nabber00@... > <mailto:nabber00@...>> wrote: > > > >> Hi, I'm trying to run a Java Applet with a Java Swing GUI but using a > >> python library as a backed. I've packed it all into a .jar that runs > >> fine as a standalone Java app. When I move it to the webserver > it seems > >> to be issuing HTTP requests (see attached log) for various > imports and I > >> have no idea why. Something with the classpath or pythonpath? Any > >> ideas? > >> > >> Neil > >> > >> --------------- modified jython factory ---------------------- > >> public static Object getJythonObject(String interfaceName, > >> String pathToJythonModule){ > >> > >> Object javaInt = null; > >> PythonInterpreter interpreter = new PythonInterpreter(); > >> //interpreter.execfile(pathToJythonModule); > >> interpreter.exec("import " + pathToJythonModule); > >> //String tempName = > >> pathToJythonModule.substring(pathToJythonModule.lastIndexOf("/")+1); > >> String tempName = > >> pathToJythonModule.substring(pathToJythonModule.lastIndexOf(".")+1); > >> //tempName = tempName.substring(0, tempName.indexOf(".")); > >> //System.out.println(tempName); > >> String instanceName = tempName.toLowerCase(); > >> String javaClassName = tempName.substring(0,1).toUpperCase() + > >> tempName.substring(1); > >> //String objectDef = "=" + javaClassName + "()"; > >> String objectDef = "=" + pathToJythonModule + "." + > javaClassName > >> + "()"; > >> interpreter.exec(instanceName + objectDef); > >> //System.out.println(instanceName + objectDef); > >> try { > >> Class JavaInterface = Class.forName(interfaceName); > >> javaInt = > >> > interpreter.get(instanceName).__tojava__(JavaInterface); > >> } catch (ClassNotFoundException ex) { > >> ex.printStackTrace(); // Add logging here > >> } > >> > >> return javaInt; > >> } > >> > >> > >> -------------------- HTTP Log -------------------- > >> > >> [Sun Jun 14 18:50:40 2009] [error] [client X] File does not exist: > >> /download_test/stat$py.class > >> > >> [Sun Jun 14 18:50:41 2009] [error] [client X] File does not exist: > >> /download_test/stat$py.class > >> [Sun Jun 14 18:50:42 2009] [error] [client X] File does not exist: > >> /download_test/java > >> [Sun Jun 14 18:50:45 2009] [error] [client X] File does not exist: > >> /download_test/java > >> [Sun Jun 14 18:50:46 2009] [error] [client X] File does not exist: > >> /download_test/java > >> [Sun Jun 14 18:50:46 2009] [error] [client X] File does not exist: > >> /download_test/java > >> [Sun Jun 14 18:50:47 2009] [error] [client X] File does not exist: > >> /download_test/org.class > >> [Sun Jun 14 18:50:47 2009] [error] [client X] File does not exist: > >> /download_test/org.class > >> [Sun Jun 14 18:50:48 2009] [error] [client X] File does not exist: > >> /download_test/org > >> [Sun Jun 14 18:50:48 2009] [error] [client X] File does not exist: > >> /download_test/org > >> [Sun Jun 14 18:50:49 2009] [error] [client X] File does not exist: > >> /download_test/org > >> [Sun Jun 14 18:50:50 2009] [error] [client X] File does not exist: > >> /download_test/org > >> > >> > >> > ------------------------------------------------------------------------------ > >> Crystal Reports - New Free Runtime and 30 Day Trial > >> Check out the new simplified licensing option that enables unlimited > >> royalty-free distribution of the report engine for externally facing > >> server and web deployment. > >> http://p.sf.net/sfu/businessobjects > >> _______________________________________________ > >> Jython-users mailing list > >> Jython-users@... > <mailto:Jython-users@...> > >> https://lists.sourceforge.net/lists/listinfo/jython-users > >> > > > > > > ------------------------------------------------------------------------------ > Crystal Reports - New Free Runtime and 30 Day Trial > Check out the new simplified licensing option that enables unlimited > royalty-free distribution of the report engine for externally facing > server and web deployment. > http://p.sf.net/sfu/businessobjects > _______________________________________________ > Jython-users mailing list > Jython-users@... > <mailto:Jython-users@...> > https://lists.sourceforge.net/lists/listinfo/jython-users > > ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Jython-users mailing list Jython-users@... https://lists.sourceforge.net/lists/listinfo/jython-users |
|
|
Re: Applet Help
by Marcos Sánchez Provencio-3
::
Rate this Message:
Just a fast idea...
Is it possible to make up a policy file to forbid these requests? El lun, 15-06-2009 a las 10:16 -0700, Neil M. escribió: > When I move it to the webserver it seems > to be issuing HTTP requests ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Jython-users mailing list Jython-users@... https://lists.sourceforge.net/lists/listinfo/jython-users |
| Free embeddable forum powered by Nabble | Forum Help |
