Re: [Gluster-devel] Reading GFID from libgfapi (unprivileged)

[Louis Zuckerman]

Hi Avati,

Yes about a week or two ago I started two projects, a JNI interface to libgfapi (built with HawtJNI, with help from Hiram Chirino) and a filesystem service provider based on the JNI library.

The code is on github and I'm mirroring it to the gluster forge.  Here are the links:

https://github.com/semiosis/glusterfs-java-filesystem (https://forge.gluster.org/glusterfs-java-filesystem)

https://github.com/semiosis/libgfapi-jni (https://forge.gluster.org/libgfapi-jni)

I'm most interested in the filesystem provider interface, so I'm developing the JNI library in step with that rather than trying to build a full JNI library all at once.  I'm also doing test driven development as much as possible and have very high test coverage for all the code.  I haven't quantified the coverage yet but I plan to run Sonar (http://www.sonarsource.com/) on the projects soon to get detailed code quality reports.

Chirino hangs out in #gluster IRC and he maintains the HawtJNI project, which is a JNI interface generator with great Maven support.  If you haven't seen it I recommend you check it out: http://hawtjni.fusesource.org/documentation/developer-guide.html

I'm looking forward to checking out your code, thanks for the link.  I'm in IRC most days if you want to chat there, email works too of course.

Best regards,

-louis (semiosis)

On Wed, Jul 10, 2013 at 2:26 AM, Anand Avati <address@hidden> wrote:

Louis,

 I am guessing you might be working on Java bindings? There has some work already happened here - https://github.com/avati/glusterfs/commits/java. It will be great if we can collaborate. Copying Brad who is also looking into Java bindings for gfapi.

Avati

On Tue, Jul 9, 2013 at 10:29 PM, Louis Zuckerman <address@hidden> wrote:

That's great!  Also Joe Julian just chatted me on IRC that the inode number from glfs_lstat might be the GFID.  I'm going to implement that for now.  Does that sound right to you?

Thanks!

On Wed, Jul 10, 2013 at 1:26 AM, Vijay Bellur <address@hidden> wrote:

On 07/10/2013 09:45 AM, Louis Zuckerman wrote:

In order to implement the following I need to read the GFID of a file
through libgfapi from an unprivileged client process.

http://docs.oracle.com/javase/7/docs/api/java/nio/file/attribute/BasicFileAttributes.html#fileKey()

I know of no way to do this.  Is it possible?

This patch under review might help:

http://review.gluster.org/#/c/5129/

-Vijay

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