change pom.xml to fix libpi4j.so

[cwinsor]

This pull request fixes the problem as described in
https://forum.predix.io/questions/20035/raspberry-pi-tutorial-libpi4jso-exception.html

A pull request is available.

The change adds an Include-Resource on the pi4j-core jarfile

                                <configuration>
                                        <instructions>
                                                <Include-Resource>
                                                  pi4j-core-1.1.jar
                                                </Include-Resource>

The signature is where Raspberry Pi throws the exception cannot find libpi4j.so

ESC[1mESC[36m2017-03-17 09:20:11,889[Component Resolve Thread (Bundle 38)]|ESC[44mERRORESC[49m|com.pi4j.util.NativeLibraryLoader|128-com.ge.predix.solsvc.predix-machine-template-adapte
r-pi-1.1.15|ESC[21mESC[mUnable to load [libpi4j.so] using path: [/lib/raspberrypi/static/libpi4j.so]
java.lang.SecurityException: Unable to create temporary file or directory

[turnerth]

Given these other jars are in here. Would it stand to reason they should also be in Include-Resource?

<Bundle-Classpath>
						.,pi4j-core-1.1.jar,
						GrovePi-spec-0.1.0.jar,
						GrovePi-dio-0.1.0.jar,
						Pi-dio-0.1.0.jar,Pi-pi4j-0.1.0.jar,Pi-spec-0.1.0.jar,GrovePi-pi4j-0.1.0.jar
					</Bundle-Classpath>

[cwinsor]

Only that one is needed to get the native library /lib/raspberrypi/static/libpi4j.so no need for others.

[turnerth]

merged to internal develop, will go out with next release

[turnerth]

The developer reports this

We don’t need Include Resource if we have Embed-Dependency

My thinking is that the term "resource" refers to things in src/main/resources. Like xml files, images, etc not to dependent jars.

That "dependencies" refer to jars resolved in the pom.

Could it be that this is not needed because it was part of some other fixes that might have solved the problem in a different way?

[cwinsor]

Not fixed. 3 complaints over a 6 week period, the most recent logged 3/7

• https://forum.predix.io/questions/19442/setting-up-predix-machine-on-the-raspberry-pi-erro.html
• https://forum.predix.io/questions/18264/raspi-predix-machine-startup-failure.html
• https://forum.predix.io/questions/18259/add-predix-machine-raspberry-pi-start-predix-machi.html

I am not an expert - I am only following what was suggested by Anh Nguyen (reputation 275 and 75 posts) in the 18264 topic thread.

So ask "the developer" if they don't like Anh Nguyen's solution - then what is THEIR recommendation to solve this problem ?! Have "the developer" run it on their Raspberry PI !!!!

[turnerth]

FYI, the developer is on paternity leave, hence the delay.