Currently we have a project with a standard subversion repository layout of: ./trunk ./branches ./tags However, as we're moving down the road of OSGi and a modular project, we've ended up with: ./trunk/bundle/main ./trunk/bundle/modulea ./trunk/bundle/moduleb ./tags/bundle/main-1.0.0 ./tags/bundle/main-1.0.1 ./tags/bundle/modulea-1.0....
What makes a module/service/bit of application functionality a particularly good candidate for an OSGi module? I'm interested in using OSGi in my applications. We're a Java shop and we use Spring pretty extensively, so I'm leaning toward using Spring Dynamic Modules for OSGi(tm) Service Platforms. I'm looking for a good way to incorpor...
We've embedded an OSGi runtime (Equinox) into out custom client-server application to facilitate plugin development and so far things are going great. We've been using Eclipse to build plugins due to the built-in manifest editor, dependency management, and export wizard. Using Eclipse to manager builds isn't very conducive to continuous ...
I have a question on the best way of exposing an asynchronous remote interface. The conditions are as follows: The protocol is asynchronous A third party can modify the data at any time The command round-trip can be significant The model should be well suited for UI interaction The protocol supports queries over certain objects, and s...
Hi all. Currently, I am working on a new version control system as part of a final year project at University. The idea is to make it highly adaptable and pluggable. We're using the OSGi framework (Equinox implementation) to manage our plug ins. My problem is that I can't find a simple & easy to use method for testing OSGi bundles. Cu...
I've read on wikipedia and other sites about OSGi, but I don't really see the big picture. It says that it's a component based platform, and that you can reload modules at runtime. Also the "practical example" given everywhere is the Eclipse Plugin Framework. My questions are: 1) What is the CLEAR and SIMPLE definition of OSGi? 2) Wha...
I would really like to use SpringSource dm Server, but our customer requires us to run our apps on their application server (Websphere). Is there a way to integrate SpringSource dm Server with other application servers? At least dm Server is build on OSGi, and many other application servers (including Websphere) are based on OSGi as well...
Has anyone used OSGi and JSF together? I ask because JSF uses class-loader magic to find custom components. From a tutorial (emphasis mine): This configuration file will end up being META-INF/faces-config.xml in the .jar file that represents this component. JSF will look for such a file name in each of the .jar files that ...
I am starting to develop an Eclipse plugin (technically, an OSGi plugin) and one of the first problems I've run into is that I can't seem to control the commons-logging output as I normally would. I've included the commons-logging package in the plugin dependencies, and indeed, when I log something (at INFO or higher severity) it is log...
I am just wondering if any one is using the OSGi Bundle Repository and what for? ...
Say you have an eclipse plugin with various views, these views should display data from some OSGi bundle that pushes data to the Views. Rather than have every view communicate with the OSGi bundle, I have an intermediate Facade class that acts as a blackboard for the views and manages communications between the views and the other OSGi ...
I'm using db4o 6.4.54 in OSGi environment as a model storage. Every time I restart OSGi framework, the database appears to be empty, although the file is there and not empty definitely. I have the following configuration: A core bundle, which depends on the standard db4o_osgi bundle provided by db4o. An UI bundle, which depends on the ...
I am using Apache Felix and its Declarative Services (SCR) to wire the service dependencies between bundles. For example, if I need access to a java.util.Dictionary I can say the following to have SCR provide one: /** * @scr.reference name=properties interface=java.util.Dictionary */ protected void bindProperties(Dictionary d) { } pr...
Hi all, I'm currently developing an OSGi based application (using Equinox) by trying to mavenize a web tutorial I've found on OSGi+Equinox. In this project, there are bundles depending on other bundles (quote-service depends on quote). The compile phase does succeed, but the package phase does not. Maven complains the following : [INFO...
I have been trying to understand a bit more about the wider picture of OSGi without reading thru the entire specification. As with so many things, the introduction to what OSGi actually is was probably written by someone who had been working on it for a decade and perhaps wasn't best placed to put themselves in the mindset of someone who...
I would like to gain some insight into the life cycle that is used in industry when developing and deploying OSGi based systems. My main focus is on the deployment phases, after the development phase has created versioned and packaged a bundle. Specifically testing procedures that may be carried out, and method of integration. A very hig...
I am developing an Eclipse plug-in that fits a client-server model. Its a commercial project so we cannot re-distribute the JDBC drivers for the various databases we support with the plug-in. So I developed a preference page to allow the user locate the jars and have a simple discovery mechanism that iterates through the classes in the ...
I have a J2EE 1.3 app that uses EJB 2.1 session and entity beans. Currently this app runs as an EAR file on JBoss. I'd like to switch to the SpringSource dm Application Server because of all the benefits that OSGi provides. Does anyone know if there's an OSGi bundle that can act as an EJB container? Can OpenEJB do this? ...
OSGi has a problem with split packages, i.e. same package but hosted in multiple bundles. Are there any edge cases that split packages might pose problems in plain java (without OSGi) ? Just curious. ...
I have an application that runs as a collection of OSGi bundles. I start it using a very small wrapper that embeds the Felix framework. The necessity of that wrapper irks me a little, as does the fact that it depends on Felix (whereas the application itself could run just as well in, say, Equinox), so I want to get rid of it, and use the...