missing Web Service comunication library?

crazycow

missing Web Service comunication library?

in Library and Tool Development • 3 years ago

First post on the forum, Hello World

Hi, I'm using Processing as one part of my diploma thesis and I just stumbled upon a problem.
The thing is, I'm using a Processing-generated applet for voice recording - using the Minim library - wrapped in a custom-made widget for the Google Web Toolkit. I develop in the Eclipse IDE and for generation I simply strip the .java file to meet the .pde format. That worked quite good until I took advantage of other third party library imports in Eclipse. Concrete: The Apache HttpClient for communication with web services on a Tomcat application server. I have 6 existing jar files containing the Apache Commons IO implementation and all works fine in Eclipse, but now I can't compile and export the Applet through the Processing IDE. I thought it may be possible to make a Processing specific library of those given lib files, any ideas?

Thanks in advance!
Felix Woitzel

Replies(3)

andreas.s..

Re: missing Web Service comunication library?

3 years ago

you can bundle the required jar files inside a custom-library folder (make sure that your custom-library folder has the same name as one of the jar files so it is recognized by processing) and place it inside ~/Documents/Processing/libraries (then restart processing)

or, use the code folder inside your sketch folder

Another alternative: Using the code folder If all you want to do is add some Java code to a sketch, sometimes you don't even need to build a full library. If you add a .jar file to your sketch (using Sketch → Add File), the file will be copied to a folder named code inside your sketch folder. When running the sketch, all packages found in the .jar file will automatically be added as import statements in the sketch (though invisible to the user).

andreas schlegel, http://www.sojamo.de

crazycow

Re: missing Web Service comunication library?

3 years ago

Well, I'm one step further...
Putting the jars into the code folder was the key. Thanks for your help with that. At least it runs in the Processing IDE now, ...but not yet in the browser...
But before I can take a closer look at the browser problem I still have to solve just another new thing:
The Minim library puts the recorded wav file next to the pde file, which is good in principle, but kind of confusing when I want to read the file in the next step for sending it over HTTP to the accepting servlet. Again, it all works fine in Eclipse, but when executing it in the Processing IDE, the root path is set wrongly.

File message = new File("message.wav");
In Eclipse this expression points correctly on the recorded file in the project folder.
In Processing this points to a not existing file in the Processing root folder.
And probably when executing in the browser, the recorded file will be in a temporary folder next to the applet's jar, I hope there's a common approach to it.

At the moment the applet doesn't even start in the browser -.- I'm working on it...

crazycow

Re: missing Web Service comunication library?

3 years ago

...downloading the minim source, importing as an Eclipse project, adding the required libraries to the build path, debugging into it... i have finally found the undocumented key to success:

File message = new File( sketchPath("message.wav" )); //

edit:
I needed to include the external archive files to the generated html file manually, now everything works fine in the browser too.

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