B4J Question Running JAR file location and name ?

[wl]

Hi,

Is there a way in obtaining (in code) the full path and filename of the jar file that is running ?

I would like to be able to put a configuration file next to the JAR file (with a different file extension).

Thanks !

 

[Harris]

Dim path as string = File.GetFileParent(filename).

You should know your file name since you created it?

 

[wl]

That's not what I meant.

Indeed I know the filename of the JAR file, but since the JAR file can be put in any location (and the JAR file might be renamed as well), I would like to obtain the full path + filename of the running JAR.

Thanks

 

[Harris]

I have no idea how one might interrogate some running jar to extract it's particulars...
Interesting - if at all possible...

 

[Erel]

File.DirApp will return this path when the user clicks on the the jar or starts it with java -jar <yourjar>

The only case where it will not return the correct path is if you run it from a different folder: java -jar SomeFolder\Maybe Another One\<your jar>

 

[wl]

Thanks, but as I'm running the application inside a Linux shell ...

This is what I found in Java fora ... can this be embedded in B4J ?

return new File(MyClass.class.getProtectionDomain().getCodeSource().getLocation().toURI().getPath());

 

[wl]

With inline java this seems to work:

Dim obj As JavaObject = Me
Dim foo As String = obj.RunMethod("getRunningJAR", Null)
Log (foo)

and this as embedded Java:

#if java
static public String getRunningJAR()
{
    try {
        return main.class.getProtectionDomain().getCodeSource().getLocation().toURI().getPath();
    } catch (Exception e){
      throw new RuntimeException(e);
    }
}
 #End If

 

[wl]

Note that when running in debug mode there is no JAR and the return value refers to the folder in which the main.class resides.