Hey Nima, Thanks for the advice! It might prove to be very useful, the R-OSGi system might be something I'll use!
I'm not working on CACI, but I know some of the writers, even had some courses from some of them. The system I'm using is part of the Amigo Project, which was a EC funded project into smart homes and such. As part of that, a context management service and announcement and notification service were developed as a number of modules on OSGi (Oscar). You can read about it in A Service-Oriented Middleware for Context-Aware Applications. Bonino da Silva Santos, L.O. and Poortinga-van Wijnen, R. and Vink, P. (2007) http://eprints.eemcs.utwente.nl/11446/ Does anyone know whether the older Oscar implementation of OSGi has some major disadvantages, as compared to Felix? Since the modules I'm using have been developed for use on Oscar, I should either take an effort to make these work on Felix, or develop my own bundles on Oscar.. Thanks! Freek Uijtdewilligen -----Original Message----- From: Nima Kaviani [mailto:[email protected]] Sent: donderdag 2 juli 2009 3:39 To: [email protected] Subject: Re: communication between mobile device and OSGi on server Hi Freek, is it CACI, the system you are trying to work on? I remember reading the following paper written by people from your school -- Dynamic Context Bindings in Pervasive Middleware: http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4144876 so it might be what you are trying to improve on. right? I would recommend you have a look at the following works mostly by Jan Rellermeyer. The papers are explanatory and should provide you with the proper answer on things you are asking about. Not sure if Jan is monitoring this mailing list, but he is a reliable source to get feedback from. 1. R-OSGi: Distributed Applications Through Software Modularization (http://www.springerlink.com/content/u55h52l45q5144v1/) 2. AlfredO: An Architecture for Flexible Interaction with Electronic Devices (http://www.springerlink.com/content/j022273606816lu6/) and you can also have a look at this other paper: 3. Holger Schmidt, Jan-Patrick Elsholz, Vladimir Nikolov, Franz J. Hauck, Rüdiger Kapitza: OSGi4C: Enabling OSGi for the Cloud. The Fourth International Conference on Communication System Software and Middleware - COMSWARE (Dublin, Ireland, June 16-19, 2009), ACM. Accepted for publication. The above papers should give you a failry good understanding of splitting your implementation across distributed OSGi platforms > Scalability is also an issue, how is it possible to have multiple > phones, thus multiple context sources providing their data to the > server? Depends on how you implement your architecture. Have a look at message oriented middleware (pub/sub designs in particular) and you may find some interesting information. I have to run now, I will try to provide you with a more detailed explanation on this last part later in the week. good luck, -Nima -- http://nima.magic.ubc.ca --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] Please help Logica to respect the environment by not printing this email / Pour contribuer comme Logica au respect de l'environnement, merci de ne pas imprimer ce mail / Bitte drucken Sie diese Nachricht nicht aus und helfen Sie so Logica dabei die Umwelt zu schuetzen / Por favor ajude a Logica a respeitar o ambiente nao imprimindo este correio electronico. This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
