B4J Question Chilkat bundle for Linux server

[avalle]

I'm interested in using the wrapper for the Chilkat libraries in a B4J server application running on Linux in a public cloud.
I'm assuming that the work @DonManfred published at https://www.b4x.com/android/forum/threads/chilkat-bundle.125869/ is packaged for use on Windows.

Forgive my ignorance, but what would be needed to adapt it to run in a Linux VPS? The original library is available for Linux.

I'd also like to know if this project is being maintained and developed further.
I think I've also found a bug but I don't know how to contribute and if there are any updates after last year's release.

Thanks
Andrea

 

[DonManfred]

Forgive my ignorance, but what would be needed to adapt it to run in a Linux VPS?

i don´t know. Which of the downloads is for the linux you use????

Chilkat Full-Version Software Components Downloads

Chilkat Software Full-Version Component Downloads

www.chilkatsoft.com

I'd also like to know if this project is being maintained and developed further.

i have not stopped it. But also no news...

Note that the wrapper is written in java to use it in b4j

But you may be able to add linux support if you add the .so file named as chillkat.so and put it inside the chilkat-bundle.jar/lib/yourarchtouse/libchillkat.so

 

[avalle]

i don´t know. Which of the downloads is for the linux you use????

Chilkat Full-Version Software Components Downloads

Chilkat Software Full-Version Component Downloads

www.chilkatsoft.com

I'm on JDK 11 64-bit, so I'm assuming it would be this one:

 

[avalle]

Also, does it matter if the library is more recent than the version you wrote the wrapper for?

(then you see all my ignorance... )

 

[DonManfred]

I'm on JDK 11 64-bit, so I'm assuming it would be this one:

Guess NO. It is a windows-download with a dll
Check the LINUX Downloads. Choose the one for YOUR linux you use.

 

[DonManfred]

so I'm assuming it would be this one

Note that this download is listed under

Windows Downloads​

I would search the LINUX Download and choose one of these.

 

[avalle]

No this is under the Linux Downloads section:

 

[DonManfred]

No this is under the Linux Downloads section

A screenshot does not help me.
Give a congrete url please. There must be ONE Download which matches your Linux. Which one?

 

[avalle]

https://chilkatdownload.com/9.5.0.88/chilkatjava-9.5.0-jdk11-x86_64-linux.tar.gz

Thanks!

 

[DonManfred]

https://chilkatdownload.com/9.5.0.88/chilkatjava-9.5.0-jdk11-x86_64-linux.tar.gz

@Erel Do you know in which "arch"-Folder the .so file needs to be placed to use it in Linux?
b4j-libfolder\src\*.java
b4j-libfolder\lib\{arch}\libchilkat.so

For Windows it must be
b4j-libfolder\lib\x86\libchilkat.so
or
b4j-libfolder\lib\x86_64\libchilkat.so

 

[Erel]

There is no standard folder as in Android.
Try to put it in the app folder, where the jar file is located.

 

[DonManfred]

@avalle See answer from Erel above.
Download https://chilkatdownload.com/9.5.0.88/chilkatjava-9.5.0-jdk11-x86_64-linux.tar.gz
and put the .so file with the name libchilkat.so (rename it) into File.DirApp Folder. maybe put it into assets and copy it at runtime first.

 

[avalle]

I tried to put the libchilkat.so file in the same path as the jar but it did not work.

From the error log I found out that it had to be placed in one of the java.library.path:
[/usr/java/packages/lib, /usr/lib/x86_64-linux-gnu/jni, /lib/x86_64-linux-gnu, /usr/lib/x86_64-linux-gnu, /usr/lib/jni, /lib, /usr/lib]

Thanks both for helping out!!

 

[DonManfred]

From the error log I found out that it had to be placed in one of the java.library.path:

Take the chilkat.jar, rename it to zip. Open the zip. Add the .so file as libchilkat.so to the lib folder in the zip.
Rename the zip back to .jar... Try again

 

[avalle]

Sorry, I wanted to say that it works by simply copying the libchilkat.so file into /usr/lib with no further changes to other files

I want to try your suggestion as it looks cleaner, but I'm not clear if the chilkat.jar file you're talking about is the one from the Chilkat library download (see screenshot below) or you actually mean the ChilkatBundle.jar file.

 

[DonManfred]

or you actually mean the ChilkatBundle.jar file.

Sorry, my fault. For sure i meant this one.

Once included here you do not ned to copy the .so to /usr/lib. But copying the file is also ok. ;-)

 

[avalle]

Placing the .so file in the lib folder of the Bundle JAR does not seem to work. Same error as with the original Bundle JAR:

main._process_globals (java line: 192)
java.lang.UnsatisfiedLinkError: no chilkat in java.library.path: [/usr/java/packages/lib, /usr/lib/x86_64-linux-gnu/jni, /lib/x86_64-linux-gnu, /usr/lib/x86_64-linux-gnu, /usr/lib/jni, /lib, /usr/lib]
at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2670)
at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:830)
at java.base/java.lang.System.loadLibrary(System.java:1873)
at de.donmanfred.CkGlobalwrapper.<clinit>(CkGlobalwrapper.java:215)
at b4j.example.main._process_globals(main.java:192)
at b4j.example.main.initializeProcessGlobals(main.java:183)
at b4j.example.main.main(main.java:27)

I'm moving forward with the .so library in /usr/lib unless you have other ideas.
Thanks so much in any case, really appreciate the help.