org.drombler.acp.core.commons.util

Class SimpleServiceTrackerCustomizer<T>

java.lang.Object

org.drombler.acp.core.commons.util.SimpleServiceTrackerCustomizer<T>

Type Parameters:

T - the type of the tracked object

All Implemented Interfaces:

org.osgi.util.tracker.ServiceTrackerCustomizer<T,T>

public class SimpleServiceTrackerCustomizer<T>
extends Object
implements org.osgi.util.tracker.ServiceTrackerCustomizer<T,T>

A simple ServiceTrackerCustomizer implementation which delegates the work to Consumers.

See the static factory methods to create ServiceTrackers.

Author:

puce

See Also:

createServiceTracker(java.lang.Class, java.util.function.Consumer), createServiceTracker(org.osgi.framework.BundleContext, java.lang.Class, java.util.function.Consumer), createServiceTracker(java.lang.Class, java.util.function.Consumer, java.util.function.Consumer), createServiceTracker(org.osgi.framework.BundleContext, java.lang.Class, java.util.function.Consumer, java.util.function.Consumer)

Constructor Summary

Constructors

Constructor and Description
SimpleServiceTrackerCustomizer(org.osgi.framework.BundleContext context, Consumer<T> addingServiceConsumer, Consumer<T> removedServiceConsumer) Creates a new instance of this class.

Method Summary

Modifier and Type	Method and Description
T	addingService(org.osgi.framework.ServiceReference<T> reference) Calls the registered adding service consumer.
static <T> org.osgi.util.tracker.ServiceTracker<T,T>	createServiceTracker(org.osgi.framework.BundleContext bundleContext, Class<T> serviceType, Consumer<T> consumer) Creates a service tracker for the specified service type. The provided consumer will be called on addingService(org.osgi.framework.ServiceReference), modifiedService(org.osgi.framework.ServiceReference, java.lang.Object) and removedService(org.osgi.framework.ServiceReference, java.lang.Object).
static <T> org.osgi.util.tracker.ServiceTracker<T,T>	createServiceTracker(org.osgi.framework.BundleContext bundleContext, Class<T> serviceType, Consumer<T> addingServiceConsumer, Consumer<T> removedServiceConsumer) Creates a service tracker for the specified service type. The provided addingServiceConsumer will be called on addingService(org.osgi.framework.ServiceReference) and modifiedService(org.osgi.framework.ServiceReference, java.lang.Object). The provided removedServiceConsumer will be called on modifiedService(org.osgi.framework.ServiceReference, java.lang.Object) and removedService(org.osgi.framework.ServiceReference, java.lang.Object).
static <T> org.osgi.util.tracker.ServiceTracker<T,T>	createServiceTracker(Class<T> serviceType, Consumer<T> consumer) Creates a service tracker for the specified service type. The provided consumer will be called on addingService(org.osgi.framework.ServiceReference), modifiedService(org.osgi.framework.ServiceReference, java.lang.Object) and removedService(org.osgi.framework.ServiceReference, java.lang.Object).
static <T> org.osgi.util.tracker.ServiceTracker<T,T>	createServiceTracker(Class<T> serviceType, Consumer<T> addingServiceConsumer, Consumer<T> removedServiceConsumer) Creates a service tracker for the specified service type. The provided addingServiceConsumer will be called on addingService(org.osgi.framework.ServiceReference) and modifiedService(org.osgi.framework.ServiceReference, java.lang.Object). The provided removedServiceConsumer will be called on modifiedService(org.osgi.framework.ServiceReference, java.lang.Object) and removedService(org.osgi.framework.ServiceReference, java.lang.Object).
void	modifiedService(org.osgi.framework.ServiceReference<T> reference, T service) Calls the registered adding and removed service consumer.
void	removedService(org.osgi.framework.ServiceReference<T> reference, T service) Calls the registered removed service consumer.

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleServiceTrackerCustomizer

public SimpleServiceTrackerCustomizer(org.osgi.framework.BundleContext context,
                                      Consumer<T> addingServiceConsumer,
                                      Consumer<T> removedServiceConsumer)

Creates a new instance of this class.

Parameters:

context - the bundle context

addingServiceConsumer - the call back which gets called on addingService(org.osgi.framework.ServiceReference) and modifiedService(org.osgi.framework.ServiceReference, java.lang.Object)

removedServiceConsumer - the call back which gets called on removedService(org.osgi.framework.ServiceReference, java.lang.Object) and modifiedService(org.osgi.framework.ServiceReference, java.lang.Object)

Method Detail

addingService

public T addingService(org.osgi.framework.ServiceReference<T> reference)

Calls the registered adding service consumer.

Specified by:

addingService in interface org.osgi.util.tracker.ServiceTrackerCustomizer<T,T>

modifiedService

public void modifiedService(org.osgi.framework.ServiceReference<T> reference,
                            T service)

Calls the registered adding and removed service consumer.

Specified by:

modifiedService in interface org.osgi.util.tracker.ServiceTrackerCustomizer<T,T>

removedService

public void removedService(org.osgi.framework.ServiceReference<T> reference,
                           T service)

Calls the registered removed service consumer.

Specified by:

removedService in interface org.osgi.util.tracker.ServiceTrackerCustomizer<T,T>

createServiceTracker

public static <T> org.osgi.util.tracker.ServiceTracker<T,T> createServiceTracker(Class<T> serviceType,
                                                                                 Consumer<T> consumer)

Creates a service tracker for the specified service type.

The provided consumer will be called on addingService(org.osgi.framework.ServiceReference), modifiedService(org.osgi.framework.ServiceReference, java.lang.Object) and removedService(org.osgi.framework.ServiceReference, java.lang.Object).

Type Parameters:

T - the service type to track

Parameters:

serviceType - the service type to track

consumer - the consumer

Returns:

a service tracker for the speficied service type

createServiceTracker

public static <T> org.osgi.util.tracker.ServiceTracker<T,T> createServiceTracker(Class<T> serviceType,
                                                                                 Consumer<T> addingServiceConsumer,
                                                                                 Consumer<T> removedServiceConsumer)

Creates a service tracker for the specified service type.

The provided addingServiceConsumer will be called on addingService(org.osgi.framework.ServiceReference) and modifiedService(org.osgi.framework.ServiceReference, java.lang.Object).
The provided removedServiceConsumer will be called on modifiedService(org.osgi.framework.ServiceReference, java.lang.Object) and removedService(org.osgi.framework.ServiceReference, java.lang.Object).

Type Parameters:

T - the service type to track

Parameters:

serviceType - the service type to track

addingServiceConsumer - the adding service consumer

removedServiceConsumer - the removed service consumer

Returns:

a service tracker for the speficied service type

createServiceTracker

public static <T> org.osgi.util.tracker.ServiceTracker<T,T> createServiceTracker(org.osgi.framework.BundleContext bundleContext,
                                                                                 Class<T> serviceType,
                                                                                 Consumer<T> consumer)

Creates a service tracker for the specified service type.

The provided consumer will be called on addingService(org.osgi.framework.ServiceReference), modifiedService(org.osgi.framework.ServiceReference, java.lang.Object) and removedService(org.osgi.framework.ServiceReference, java.lang.Object).

Type Parameters:

T - the service type to track

Parameters:

bundleContext - the bundle context

serviceType - the service type to track

consumer - the consumer

Returns:

a service tracker for the speficied service type

createServiceTracker

public static <T> org.osgi.util.tracker.ServiceTracker<T,T> createServiceTracker(org.osgi.framework.BundleContext bundleContext,
                                                                                 Class<T> serviceType,
                                                                                 Consumer<T> addingServiceConsumer,
                                                                                 Consumer<T> removedServiceConsumer)

Creates a service tracker for the specified service type.

The provided addingServiceConsumer will be called on addingService(org.osgi.framework.ServiceReference) and modifiedService(org.osgi.framework.ServiceReference, java.lang.Object).
The provided removedServiceConsumer will be called on modifiedService(org.osgi.framework.ServiceReference, java.lang.Object) and removedService(org.osgi.framework.ServiceReference, java.lang.Object).

Type Parameters:

T - the service type to track

Parameters:

bundleContext - the bundle context

serviceType - the service type to track

addingServiceConsumer - the adding service consumer

removedServiceConsumer - the removed service consumer

Returns:

a service tracker for the speficied service type