[OSGi] Spring error Unable to locate Spring NamespaceHandler for XML schema namespace

You're working with OSGi because it's flexible, you like components, and so on, and you also like Spring because you love writing XMLs instead of Java code.

You think it would be a good idea if you could join these technologies but reading is so boring, plus since both use some config files you just need to mash them together and you should be good with your Sprosgienstein creation. But then you realize that some small differences for example in classpath handling and dependency management are making your life difficult.

A common error you might get is: "Unable to locate Spring NamespaceHandler for XML schema namespace XXX"

Grog, a PaaS based on OSGi for Public Administrations and private networks

As a result of my 9-months thesis work, I now present Grog, a PaaS based on OSGi for Public Administrations and private networks.

ECF remote OSGi DS Declarative Services example

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

For this example we will be using the Eclipse IDE for Java with the ECF Remote Services Target Components  plug-in, the Equinox framework and ZooKeeper as a service discovery provider.

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.