r-OSGi remote OSGi example

In this post we will give a fair example of the workings of the OSGi services remoted through r-OSGi.

In order for the example to work, we must have an OSGi framework with the r-OSGi extension. Also, make sure the 9278 port on your system is free as r-OSGi uses it for its purposes.

DOSGi DS Distributed OSGi Declarative Services example

In this post we will give a fair example of the workings of the OSGi DS Declarative Services remoted with DOSGi.

We can use either one of the following frameworks:

• Apache Camel
• Apache Aries
• Apache CXF

and the Eclipse IDE (for Java). The code can be launched either inside Eclipse or from a standalone OSGi framework.

OSGi Blueprint Services example

In this post we will give a fair example of the workings of the OSGi Blueprint Services.

We can use either one of the following frameworks:

• Eclipse Gemini


• Apache Camel


• Apache Aries

and the Eclipse IDE (for Java). The code can be launched either inside Eclipse or from a standalone OSGi framework.

OSGi DS Declarative Services example

In this post we will give a fair example of the workings of the OSGi DS services.

I suggest you read a good OSGi tutorial by Lars Vogel before moving further if you are not much confident with the OSGi specification.

We are working with the Equinox OSGi framework, which is part of the Eclipse IDE (for Java). The code can be launched either inside Eclipse or from a standalone OSGi framework; for the latter option, grab the following jar packages from under the plugins/ folder of our Eclipse installation:

org.eclipse.osgi
org.eclipse.equinox.ds
org.eclipse.equinox.util
org.eclipse.osgi.services

and copy them in a folder of your choice.

Why beer is good for the brain

Well ya see, Norm, it's like this. A herd of buffalo can only move as fast as the slowest buffalo. And when the herd is hunted, it is the slowest and weakest ones at the back that are killed first.
This natural selection is good for the herd as a whole, because the general speed and health of the whole group keeps improving by the regular killing of the weakest members.

In much the same way, the human brain can only operate as fast as the slowest brain cells. Excessive intake of alcohol, as we know, kills brain cells. But naturally, it attacks the slowest and weakest brain cells first. In this way, regular consumption of beer eliminates the weaker brain cells, making the brain a faster and more efficient machine.
That's why you always feel smarter after a few beers.

Cheers, 1982