How to import a library when you have the jar? - Mongodb and Processing

glchriste

How to import a library when you have the jar? - Mongodb and Processing

in Contributed Library Questions • 5 months ago

The only thread I've found on using Mongodb and Processing is here: https://forum.processing.org/topic/mongo-db-and-processing.

The OP asks if it's possible to use both together, and it is. However, the thread stops there.

Has anyone gotten this working? If so, how?

Mongodb is installed properly on my machine. I can get a local database up and running and connect to it through the command window. However, when I try to import the Mongodb Java driver into Processing, it tells me that the library does not exist. I have the jar in the same folder. I've also tried including the src in the same folder (the src is far too convoluted to be imported properly and used as adjacent Java classes along with the PDEs).

Do I have to recompile the src as a Processing library? How can I import the Mongodb Java library when I have the jar?

Thank you!

Replies(6)

amnon.owed

Re: How to import a library when you have the jar? - Mongodb and Processing

5 months ago

Haven't used this library, but in general...

See: http://wiki.processing.org/w/How_to_Install_a_Contributed_Library

The most important thing is that the name of the folder is the same as the name of the jar.

A possible workaround is to drop the jar in a folder called /code (similar to the /data folder) inside your sketch folder

glchriste

Re: How to import a library when you have the jar? - Mongodb and Processing

5 months ago

Alright. I followed the layout word for word. Still no luck... I've noticed sometimes the library name is actually different from the jar, and the library still imports fine for me. Is it possible I'm not using the correct name for the library, and if so, is there a way I could derive this from the jar file?

Edit:

Here's the structure:

In my libraries folder for Processing:

mongo

-> examples

-> library -> mongo.jar

-> reference

-> src -> (java source code in three folders, main, test and util, for MongoDB Java driver)

amnon.owed

Re: How to import a library when you have the jar? - Mongodb and Processing

5 months ago

Can you give an example where the library name is different from the jar. As specified on that page and as evident from every single library at least in my libraries folder, the name of the main jar is identical (including capital letters) to the name of the folder in the libraries folder.

Also, try renaming the jar to something simple, sometimes special characters cause problems.

Also, try to drop it in the code subdirectory, then you don't need imports.

glchriste

Re: How to import a library when you have the jar? - Mongodb and Processing

5 months ago

I also tried dropping it in the code subdirectory. Then I tried import mongo.*;

That didn't work, either, unfortunately. I've dropped the jar file into the Processing IDE when the project is open, too, to create that code subdirectory.

amnon.owed

Re: How to import a library when you have the jar? - Mongodb and Processing

5 months ago

All right, well all of that sounds all right.

Don't know what's the problem then, because as said, I've never used this library.

glchriste

Re: How to import a library when you have the jar? - Mongodb and Processing

5 months ago

Hmm, alright. Yeah, I'm puzzled. Though it's meant to be a Java library and not built for Processing per se; but in theory, it should still work.

Edit: I saw a YouTube video of someone who got it working, they seemed to use both inside of Eclipse. Maybe a different IDE would be more conducive to combining Java code with Processing PDEs.

Edit 2: Link -> http://www.youtube.com/watch?v=Ev6G18O9lRo

Edit 3: FIXED! The problem was actually what I thought in my second post, I just couldn't figure out the right name. I used the same import name from the YouTube video. E.g., import com.mongodb.BasicDBObject;, etc.

It works!

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