com.redhat.thermostat.common.utils

Class ServiceRegistry<T>

java.lang.Object

com.redhat.thermostat.common.utils.ServiceRegistry<T>

Type Parameters:

T - The type of service which this registry works with.

public class ServiceRegistry<T>
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	SERVICE_NAME

Constructor Summary

Constructors

Constructor and Description
ServiceRegistry(org.osgi.framework.BundleContext ctx, String registrationClassName)

Method Summary

Methods

Modifier and Type	Method and Description
Collection<T>	getRegisteredServices() Get all implementations of T which have been registered.
T	getService(Dictionary<String,String> props) Get a implementation of T matching the properties.
T	getService(String name) Equivalent to calling getService(props) with a dictionary containing an entry for SERVICE_NAME with value as name.
void	registerService(T service, Dictionary<String,?> props) Register the implementation of T to the OSGi context, with the given properties.
void	registerService(T service, String name) Equivalent to calling registerService(service, name, props) with null or empty props.
void	registerService(T service, String name, Dictionary<String,String> props) Equivalent to calling registerService(service, props) with a dictionary containing an entry for SERVICE_NAME with value as name, in adddition to the contents of props
void	unregisterAll() Unregister all of the services that have been registered through this registry.

Methods inherited from class java.lang.Object

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

Field Detail

SERVICE_NAME

public static final String SERVICE_NAME

See Also:

Constant Field Values

Constructor Detail

ServiceRegistry

public ServiceRegistry(org.osgi.framework.BundleContext ctx,
               String registrationClassName)

Method Detail

registerService

public void registerService(T service,
                   Dictionary<String,?> props)

Register the implementation of T to the OSGi context, with the given properties.

Parameters:

service - The implementation to be registered.

props - The additional properties which the service should have.

registerService

public void registerService(T service,
                   String name,
                   Dictionary<String,String> props)

Equivalent to calling registerService(service, props) with a dictionary containing an entry for SERVICE_NAME with value as name, in adddition to the contents of props

Parameters:

service - The implementation to be registered.

name - The name to be added as SERVICE_NAME property.

props - Additional properties which the service should be registered with.

registerService

public void registerService(T service,
                   String name)

Equivalent to calling registerService(service, name, props) with null or empty props.

Parameters:

service - The implementation to be registered.

name - The name to be added as SERVICE_NAME property.

unregisterAll

public void unregisterAll()

Unregister all of the services that have been registered through this registry.

getService

public T getService(Dictionary<String,String> props)

Get a implementation of T matching the properties.

Parameters:

props - The properties which the returned T implementation must match.

Returns:

A matching T implementation, if any. Otherwise, null.

getService

public T getService(String name)

Equivalent to calling getService(props) with a dictionary containing an entry for SERVICE_NAME with value as name.

Parameters:

name - The name for the service which should be returned.

Returns:

An implementation of T matching the supplied name, if any. Otherwise, null.

getRegisteredServices

public Collection<T> getRegisteredServices()

Get all implementations of T which have been registered. This may include ones not registered through this registry instance.

Returns:

A collection of all registered T implementations.