Hi everyone! I’m trying to get started in this world of openHAB 2. I want to develop some addons for it but I’m really confused about how all this works. I have experience working with Java and the Eclipse IDE. I followed the steps described here to set-up the IDE. Everything works, I got it running and displaying the messages on the console output.
Now, I’m asking myself, where’s the Java code? I only see configuration files but not a single source code file. Where’s the code that is producing the output I see in the console? Here’s my Eclipse project tree:
Also on localhost:8080 I don’t have any UI. Do I have to clone the openhabs2-addons repo to get a UI? How do I add this addons to openhab to be able to debug them, either the already created ones or the addons I create.
Thank you very much for your help! I’ve spent hours reading through the docs and forums trying to clarify this. It’s probably a really simple question, hope you can help me!
it seems that you did not select the repositories as descriped in step 4 of the installation description. Your selection in the Eclipse Installer should look like this:
And the project structure in Eclipse will be the following after installation and first start of eclipse (it may take some time until all projects appear in Eclipse):
I did the Help > Perform Setup Tasks and cleaned all the projects but still the same errors. I’m on Windows 10 64-bit also if that helps. I installed maven too. In the installer I selected this options:
Am I missing anything? I noticed that if I follow this steps:
Open the “Infrastructure > launch” folder. Right click on openHAB_Runtime.launch, select “Run as > openHAB_Runtime”. You should now begin to see output in the console window.
openHAB is launched and I see the output on the console even with all the errors! I still can’t see anything on localhost:8080 just a Access Error: 404 -- Not Found
I just tried it on my machine (Windows 10, 64 Bit Java 8). After the start of Eclipse I have also lots of errors (249). But that’s not a real problem, because most of the errors are located in test classes or OH 1 bindings. To get rid of the errors I normally close these projects.
I did not run Help/Setup Task. I simply started the runtime and was able to connect without any problems. I would try to cleanup everything, perform a new install (without Setup Task) and try it again.
I still have the doubt, how did the code run? Is the code in some of the jar files in the imported plug-ins?
If you open the run configuration and select page “Plug-Ins” you can see where the executable code comes from. Some is exexecuted from your workspage but most is loaded from the target platform.
I see, so maybe something with my computer. I get a when accessing localhost:8080 I get a Access Error: 404 -- Not Found when running openHAB and just a page not found error when not running it so openHAB is doing something there, maybe a problem with that port on my PC.
Can I change that port? I read that I should edit the start.bat file to change the port but I see configurations done on that script. I also couldn’t find any config file to change the port.
Thank you very much for your help and patience with me Martin!
EDIT:
Yess! Got it working on 8080! I wen through the logs and saw an error binding to the 8080 port. I discovered an installed app was using that port. Really thank you for your help! If you don’t mind, I would still like to know how to change the port.
I found it: you can change the port on the Arguments page in the launch configuration. There are several VM arguments and you only need to change the port in -Dorg.osgi.service.http.port=8080 to a different port.
