B4J Question file modified by ?

[michaelleewebb]

i was wondering if there was anyway for b4j to detect who last modified a file ? ether the computer name or the user name would be good.

 

[DonManfred]

who last modified a file ?

as far as i know it is not possible.

 

[zed]

Try this code to get the system environment.
Maybe something will be useful to you in the results.

Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
    
    Dim SystemEnvironment As Map = getSystemEnvironment
    For Each Key As String In SystemEnvironment.Keys
        Log($"${Key} = ${SystemEnvironment.Get(Key)}"$)
    Next
End Sub


Sub getSystemEnvironment As Map
    Dim jo As JavaObject
    jo.InitializeStatic("java.lang.System")
    Dim Env As Map = jo.RunMethod("getenv", Null)
    Return Env
End Sub

 

[walt61]

Perhaps not 100% what you're after, but it might help; this post/class should give you a file's owner: https://www.b4x.com/android/forum/threads/file-info-in-brief.136585/

 

[michaelleewebb]

walt61, that seems to be what i'm after, the extended file attributes. the owner is about the best i can do i believe. its been awhile since i worked in b4j and i'm going to have to figure out how to apply the jar file you mentioned and apply it. but it looks right. thanks.

 

[michaelleewebb]

i've added the jar and xml to my additional lib folder, i have checked it on in the library manager. but i still don't know how to use it. do you have example code ? do i declare a class of some sorts ? then use it ? seems like i should declare a variable to hold the info. then call a method to get the info.

 

[walt61]

Just had a look at the codeproject page on which the library is based and it seems it looks for the owner by shelling 'cmd'. I couldn't test it, but have the impression that this should work (it does for e.g. property AbsolutePath; I'm on Linux with Wine, and don't have a 'cmd' there):

    Dim fp As fileproperties
    fp.FileInfo("C:\test.txt") ' This appears to be the equivalent of the trusted 'Initialize' method
    Log(fp.Owner)

 

[DonManfred]

it looks for the owner by shelling 'cmd'.

That´s not what the TO is searching.

He want to know who last edited a File.

Guess like this one:

How to Check Who Last Modified a File in Windows?

In this article we will explore the native method for tracking who last modified a file in Windows using Event Logs.

www.lepide.com

 

[walt61]

That´s not what the TO is searching.

I know, hence my post 4

Perhaps not 100% what you're after, but it might help

 

[michaelleewebb]

works, thanks walt61