D-OSDi + AndroidProgress Presentation

Xinyi DongLong Qiu

Project GoalFulfill 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 DescriptionSetting 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

Technical Details Task 1Task 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. Go to www.felix.com to download the latest

version of Felix OSGi framework and configure Felix.

b. Go over the tutorial of http://felix.apache.org/site/apache-felix-osgi-tutorial.html and code several helloworld bundles within OSGi framework.

Technical Details Task 1Once set up Felix OSGi framework, following

commands frequently used:start bundleIDstop bundleIDupdate bundleIDinstall bundleIDuninstall bundleID

Technical Details Task 1

2. Install the neccesary bundle which is used for different OSGi’s frameworks’ communication

Technical Details Task 2Task 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 23. 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 EncounteredFor 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 3,4Two 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-demo-walkthrough.htmlhttp://cxf.apache.org/dosgi-spring-dm-demo-page.html

Technical Details Task 3,42 OSGi framework: Equintox and Felix, Equintox

remote call the function in Felix.

Thank you!

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