OpenCMIS client for Android devices
-----------------------------------

                 Key: CMIS-507
                 URL: https://issues.apache.org/jira/browse/CMIS-507
             Project: Chemistry
          Issue Type: Improvement
          Components: opencmis-client, opencmis-client-bindings, 
opencmis-commons
    Affects Versions: OpenCMIS 0.6.0
         Environment: All Android devices
            Reporter: Jean Marie PASCAL


Hello Chemistry,

As new employee of Alfresco Mobile team, I just start a project to port 
OpenCMIS into Android devices.
Indeed, OpenCMIS as is doesn't work on android device due to the fact that 
Android SDK is different than JDK. They share some common package but clearly 
not all and clearly not all for using OpenCMIS in android.

So after few days of work, I created a "partial/draft" client version of 
OpenCMIS called chemistry-opencmis-android.

What's chemistry-opencmis-android ?
It's a maven project that create an android opencmis client into a single jar 
file : chemistry-opencmis-android.jar
This library is a merge of  opencmis-client-* and opencmis-commons-* 
dependencies into one jar. Some of them have been modified (More informations 
below).
The project has 2 external dependencies : android.jar (for specific android 
dependencies) and simple-json (browser binding)
I tested this project into Ice Cream Sandwich and Honeycomb android device. 
Major part of opencmis services (repository, navigation, object...) works 
pretty well but there are still some "functional holes" (extension parameters, 
ACL, versionning...). Yes it's draft version :)

What I did...
In general, 
 - Merged opencmis-client-* and opencmis-commons-* package into one.
 - removed all webservices binding references
 - removed jaxb dependency (replaced it by opencmis data object)
 - modified atompubparser to use xmlpullparser provided by android.
 - commented or deleted all external dependencies that was not provided by 
android like commons-logging, osgi...

In details,
- chemistry-opencmis-commons-api : 
 --- add a file : AtomPropertyType.java

- chemistry-opencmis-commons-impl :
 --- remove converter, JaxbHelper files and tube packges
 --- add AtomPubConverter

- chemistry-opencmis-client-api : nothing

- chemistry-opencmis-client-impl
 --- remove osgi package

- chemistry-opencmis-client-bindings
 --- deleted webservices + local package 
 --- removed commons-logging and jaxb dependencies
 --- rewrite atompubparser and atomentrywriter to use xmlpullparser
 --- rewrite all services to use only opencmis object
 --- create an atompubconverter : to create opencmis object after a parsing 
phase

So my final questions : 
What do you think about this approach ?
and if it's correct could I share, contribute and improve this version into 
chemistry and have some extra dev hands to help me in this task ?

And the last How to build my project ?
You need 
 - maven 3.x + 
 - android.jar as artifact in your maven repository. I used 
https://github.com/mosabua/maven-android-sdk-deployer to deploy android sdk 
into my local repository
then simply run a mvn install. You will have a single jar that you can 
incorporate to any android application as any dependency.


Thanks for all.

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