org.ontoware.rdf2go.osgi

Class RDF2GoActivator

java.lang.Object

org.ontoware.rdf2go.osgi.RDF2GoActivator

All Implemented Interfaces:

EventListener, org.osgi.framework.BundleActivator, org.osgi.framework.ServiceListener

public class RDF2GoActivator
extends Object
implements org.osgi.framework.BundleActivator, org.osgi.framework.ServiceListener

Activate the RDF2Go framework. Listens to registered OSGI services and searches for registered ModelFactory instances. The found factories are compared to a configuration value, if the configured factory is found, it is set as default. This is the configuration value to set: org.ontoware.rdf2go.defaultmodelfactory=(classname of modelfactory) This class has been contributed by Deutsches Forschungszentrum fuer Kuenstliche Intelligenz DFKI GmbH. TODO sauermann why cannot just the implementation bundle register itself? It shouldn't be the APIs job to register implementations.

Author:

sauermann

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULTMODELFACTORY_CFG set this variable in the OSGI config to define the default driver for RDF2Go.
static String	MODEL_FACTORY_FILTER The filter used to search for ModelFactories

Constructor Summary

Constructors

Constructor and Description
RDF2GoActivator()

Method Summary

Modifier and Type	Method and Description
void	serviceChanged(org.osgi.framework.ServiceEvent event) Listen to changes in the ModelFactories.
void	start(org.osgi.framework.BundleContext context)
void	stop(org.osgi.framework.BundleContext context)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULTMODELFACTORY_CFG

public static final String DEFAULTMODELFACTORY_CFG

set this variable in the OSGI config to define the default driver for RDF2Go.

See Also:

Constant Field Values

MODEL_FACTORY_FILTER

public static final String MODEL_FACTORY_FILTER

The filter used to search for ModelFactories

Constructor Detail

RDF2GoActivator

public RDF2GoActivator()

Method Detail

start

public void start(org.osgi.framework.BundleContext context)
           throws Exception

Specified by:

start in interface org.osgi.framework.BundleActivator

Throws:

Exception

See Also:

BundleActivator.start(org.osgi.framework.BundleContext)

stop

public void stop(org.osgi.framework.BundleContext context)
          throws Exception

Specified by:

stop in interface org.osgi.framework.BundleActivator

Throws:

Exception

See Also:

TODO leo/antoni document why context is not needed/used for stopping the bundle

serviceChanged

public void serviceChanged(org.osgi.framework.ServiceEvent event)

Listen to changes in the ModelFactories.

Specified by:

serviceChanged in interface org.osgi.framework.ServiceListener

See Also:

ServiceListener.serviceChanged(org.osgi.framework.ServiceEvent)