Package org.opennms.features.topology.app.internal.service

Class BundleContextServiceLocator

java.lang.Object

org.opennms.features.topology.app.internal.service.BundleContextServiceLocator

All Implemented Interfaces:

ServiceLocator

public class BundleContextServiceLocator
extends Object
implements ServiceLocator

Constructor Summary

Constructors

Constructor	Description
BundleContextServiceLocator(org.osgi.framework.BundleContext bundleContext)

Method Summary

Modifier and Type	Method	Description
<T> List<T>	findServices(Class<T> clazz, String query)	Find services of class clazz registered in the OSGI Service Registry.
<T> T	findSingleService(Class<T> clazz, java.util.function.Predicate<T> postFilter, String bundleContextFilter)	Finds a service registered with the OSGI Service Registry of type clazz.

Methods inherited from class java.lang.Object

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

Constructor Detail

BundleContextServiceLocator

public BundleContextServiceLocator(org.osgi.framework.BundleContext bundleContext)

Method Detail

findSingleService

public <T> T findSingleService(Class<T> clazz,
                               java.util.function.Predicate<T> postFilter,
                               String bundleContextFilter)

Description copied from interface: ServiceLocator

Finds a service registered with the OSGI Service Registry of type clazz. If a bundleContextFilter is provided, it is used to query for the service, e.g. "(operation.label=My Label*)". In addition each clazz of type T found in the OSGI Service Registry must afterwards pass the provided postFilter. If multiple services are found, only the first one is returned.

Specified by:

findSingleService in interface ServiceLocator

Returns:

A object of type clazz or null.

findServices

public <T> List<T> findServices(Class<T> clazz,
                                String query)

Description copied from interface: ServiceLocator

Find services of class clazz registered in the OSGI Service Registry. The optional filter criteria query is used.

Specified by:

findServices in interface ServiceLocator

Returns:

All found services registered in the OSGI Service Registry of type clazz.