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# Apache Karaf Bundle Example

## Abstract

One of the kind of applications you can deploy in Apache Karaf is obviously OSGi bundle.

The bundle is the core deployment unit when using OSGi. It's basically a regular jar file containing some additional headers in the MANIFEST used by the OSGi framework, and so Karaf.

## Artifacts

* `karaf-bundle-example-common` provides the `BookingService` interface and `Booking` POJO.
* `karaf-bundle-example-provider` implements and exposes a `BookingService` in the OSGi service registry.
* `karaf-bundle-example-client` exposes a new `ClientService` using the `BookingService`. This service is used to periodically manipulate the `BookingService`.
* `karaf-bundle-example-features` contains a Karaf features repository used for the deployment.

## Build 

Simply use:

```
mvn clean install
```

## Feature and Deployment

On a running Karaf instance, you register the bundle example features repository with:

```
karaf@root()> feature:repo-add mvn:org.apache.karaf.examples/karaf-bundle-example-features/4.2.1-SNAPSHOT/xml
```

Then you can install the `karaf-bundle-example-provider` feature:

```
karaf@root()> feature:install karaf-bundle-example-provider
```

Now, you can install the `karaf-bundle-example-client` feature:

```
karaf@root()> feature:install karaf-bundle-example-client
```

When you install the client feature, you should see on the console:

```
karaf@root()> 1794197511025182174 | John Doo | AF3030
```
