D-OSDi + Android
Progress Presentation
Xinyi Dong
Long Qiu
Project Goal
 Fulfill
SOA (Service Oriented
Architecture) and CBD (Component
Based Development)
 Build
up Distributed OSGi framework for
mobile phone and virtual machines.
 Develop network module which enables
communication among different OSGis.
 Implement service transition bundle that
bridge various objects.
Group Project Description
 Setting
up Distributed OSGi framework
on virtual machine.
 Setting up Distributed OSGi framework
on Android phone.
 Develop network bundle.
 Develop service transition bundle.
 Develop demo bundles which utilize
built platform to show its strength.
Current Project Status





Setting up Distributed OSGi framework on
virtual machine. 100% done
Setting up Distributed OSGi framework on
Android phone. 50% done
Develop network bundle. 50% done
Develop service transition bundle. 100%
done
Develop demo bundles which utilize built
platform to show its strength. To do
Roadmap
TASK
Task 2.1
Task 2.2
Task 2.3
Task 2.4
Task 2.5
2/6
2/20
3/4
3/18
4/1
4/15
5/1
5/12
Technical Details Task 1
 Task
1: Setting up Distributed OSGi
framework on virtual machine. (100%
done)
•
•
•
Using Felix OSGi Framework
D-OSGis are running on Window 7
An easy task to transplant to Linux
system or Unix system.
Technical Details Task 1
There are 2 steps to finish this task.
1. Setting up the OSGi Framework in the
computer.
a.
b.
Go to www.felix.com to download the latest
version of Felix OSGi framework and configure Felix.
Go over the tutorial of
http://felix.apache.org/site/apache-felix-osgitutorial.html and code several helloworld bundles
within OSGi framework.
Technical Details Task 1
Once set up Felix OSGi framework, following
commands frequently used:
start bundleID
stop bundleID
update bundleID
install bundleID
uninstall bundleID
Technical Details Task 1
2. Install the neccesary bundle which is used
for different OSGi’s frameworks’
communication
Technical Details Task 2
 Task
2: Setting up Distributed OSGi
framework on Android phone.
•
•
•
•
Step 1: Transfer the Felix OSGi framework jar files
from java machine code to Dalvit machine
code. (done)
Step 2: Transplant these files into Android device
(currently, we’re using android emulator). (done)
Step 3: Transfer the bundles which enable the
Distribute OSGi framework. (get stuck)
Step 4: Run the Distributed OSGi bundles on
Android. (to do)
Technical Details of Task 2
 Step
1 Transfer the Felix OSGi framework jar files
from java machine code to Dalvit machine code.
1. Set up the environment variable for android
emulator manager and SDK.
2. For all the jar files:
Do the ‘dx’ command like following:
dx --dex --output=classes.dex JAR_file.jar
Combine the jar file with the generated .dex
file by command:
aapt add JAR_file.jar classes.dex
Technical Details for Task 2
3. Use ‘Android Debug Bridge’ command to
transfer the data from computer to android
device:
adb push JAR_file.jar path_emulator/JAR_file.jar
4. Once pushed all the necessary bundles into
Android phone, use following command to
launch Felix OSGi:
sh felix.sh
Currently, we made the felix OSGi framework
running on Android system.
Difficulty Encountered
For step 3 (Transfer the bundles which enable the
Distribute OSGi framework),
1. D-OSGi bundles run correctly on PCs.
2. Transferred jar files into Dalvit machine code,
and pushed bundles to Android system.
However, following errors occurred:
Technical Details Task 3,4


Task 3: Develop network bundle. 50% done
Task 4: Develop service transition bundle. 100%
done
We successfully tested that different OSGis
running collaboratively on different OSGi
Framework on PC.
Technical Details Task 3,4
Two options for constructing Distributed OSGi:
Option 1: Multi Bundle Distribution
This distribution is a zip file containing the Distributed
OSGi bundles, as well as all their dependencies.
Option 2: Single Bundle Distribution:
This is a convenience distribution of a single bundle
that embeds all the dependencies.
We chose option 2 and went through tutorial
provided in
http://cxf.apache.org/distributed-osgi-greeter-demowalkthrough.html
http://cxf.apache.org/dosgi-spring-dm-demo-page.html
Technical Details Task 3,4
2 OSGi framework: Equintox and Felix, Equintox remote call
the function in Felix.
Thank you!
Questions & Comments