org.apache.aries.blueprint.container
Class AbstractServiceReferenceRecipe

java.lang.Object
  org.apache.aries.blueprint.di.AbstractRecipe
      org.apache.aries.blueprint.container.AbstractServiceReferenceRecipe

All Implemented Interfaces:

EventListener, SatisfiableRecipe, Recipe, org.osgi.framework.ServiceListener

Direct Known Subclasses:

ReferenceListRecipe, ReferenceRecipe

public abstract class AbstractServiceReferenceRecipe
extends AbstractRecipe
implements org.osgi.framework.ServiceListener, SatisfiableRecipe

Abstract class for service reference recipes. TODO: if we have a single interface (which is the standard behavior), then we should be able to get rid of the proxyClassloader and just use this interface classloader to define the proxy TODO: it is allowed to have no interface defined at all, which should result in an empty proxy

Version:

$Rev: 1352904 $, $Date: 2012-06-22 15:36:37 +0100 (Fri, 22 Jun 2012) $

Nested Class Summary

static class

AbstractServiceReferenceRecipe.Listener

Nested classes/interfaces inherited from interface org.apache.aries.blueprint.container.SatisfiableRecipe

SatisfiableRecipe.SatisfactionListener

Field Summary

protected ExtendedBlueprintContainer	blueprintContainer
protected List<Recipe>	explicitDependencies
protected String	filter The OSGi filter for tracking references
protected List<AbstractServiceReferenceRecipe.Listener>	listeners The list of listeners for this reference.
protected CollectionRecipe	listenersRecipe
protected org.osgi.service.blueprint.reflect.ServiceReferenceMetadata	metadata
protected boolean	optional

Fields inherited from class org.apache.aries.blueprint.di.AbstractRecipe

name, prototype

Constructor Summary

protected

AbstractServiceReferenceRecipe(String name, ExtendedBlueprintContainer blueprintContainer, org.osgi.service.blueprint.reflect.ServiceReferenceMetadata metadata, CollectionRecipe listenersRecipe, List<Recipe> explicitDependencies)

Method Summary

protected void	bind(org.osgi.framework.ServiceReference reference, Object service)
protected void	createListeners()
protected Object	createProxy(Callable<Object> dispatcher, Set<Class<?>> interfaces)
protected void	doStop()
org.osgi.framework.ServiceReference	getBestServiceReference()
protected org.osgi.framework.BundleContext	getBundleContextForServiceLookup()
List<Recipe>	getConstructorDependencies() Get the list of constructor dependencies, i.e.
List<Recipe>	getDependencies() Get the list of nested recipes, i.e.
protected Class	getInterfaceClass()
CollectionRecipe	getListenersRecipe()
String	getOsgiFilter()
protected static Class	getRuntimeClass(org.osgi.service.blueprint.reflect.ServiceReferenceMetadata metadata)
List<org.osgi.framework.ServiceReference>	getServiceReferences()
protected Object	getServiceSecurely(org.osgi.framework.ServiceReference serviceReference)
boolean	isSatisfied()
protected boolean	isStarted()
protected List<Class<?>>	loadAllClasses(Iterable<String> interfaceNames)
protected org.osgi.service.blueprint.container.ReifiedType	loadType(String typeName, ClassLoader fromClassLoader)
protected abstract void	retrack()
void	serviceChanged(org.osgi.framework.ServiceEvent event)
protected void	setSatisfied(boolean s)
void	start(SatisfiableRecipe.SatisfactionListener listener)
void	stop()
protected abstract void	track(org.osgi.framework.ServiceReference reference)
protected void	unbind(org.osgi.framework.ServiceReference reference, Object service)
protected abstract void	untrack(org.osgi.framework.ServiceReference reference)
protected void	updateListeners()

Methods inherited from class org.apache.aries.blueprint.di.AbstractRecipe

addPartialObject, canConvert, convert, convert, create, destroy, getName, internalCreate, isPrototype, loadClass, loadType, setPrototype, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.aries.blueprint.di.Recipe

create, destroy, getName

Field Detail

blueprintContainer

protected final ExtendedBlueprintContainer blueprintContainer

metadata

protected final org.osgi.service.blueprint.reflect.ServiceReferenceMetadata metadata

listenersRecipe

protected final CollectionRecipe listenersRecipe

explicitDependencies

protected final List<Recipe> explicitDependencies

optional

protected final boolean optional

filter

protected final String filter

The OSGi filter for tracking references

listeners

protected List<AbstractServiceReferenceRecipe.Listener> listeners

The list of listeners for this reference. This list will be lazy created

Constructor Detail

AbstractServiceReferenceRecipe

protected AbstractServiceReferenceRecipe(String name,
                                         ExtendedBlueprintContainer blueprintContainer,
                                         org.osgi.service.blueprint.reflect.ServiceReferenceMetadata metadata,
                                         CollectionRecipe listenersRecipe,
                                         List<Recipe> explicitDependencies)

Method Detail

getListenersRecipe

public CollectionRecipe getListenersRecipe()

start

public void start(SatisfiableRecipe.SatisfactionListener listener)

Specified by:

start in interface SatisfiableRecipe

stop

public void stop()

Specified by:

stop in interface SatisfiableRecipe

doStop

protected void doStop()

isStarted

protected boolean isStarted()

isSatisfied

public boolean isSatisfied()

Specified by:

isSatisfied in interface SatisfiableRecipe

getConstructorDependencies

public List<Recipe> getConstructorDependencies()

Description copied from interface: Recipe

Get the list of constructor dependencies, i.e. explicit and argument dependencies. These dependencies must be satisfied before the an object can be created.

Specified by:

getConstructorDependencies in interface Recipe

Overrides:

getConstructorDependencies in class AbstractRecipe

Returns:

a list of constructor dependencies

getDependencies

public List<Recipe> getDependencies()

Description copied from interface: Recipe

Get the list of nested recipes, i.e. all dependencies including constructor dependencies.

Specified by:

getDependencies in interface Recipe

Returns:

a list of dependencies

getOsgiFilter

public String getOsgiFilter()

Specified by:

getOsgiFilter in interface SatisfiableRecipe

getServiceSecurely

protected Object getServiceSecurely(org.osgi.framework.ServiceReference serviceReference)

createListeners

protected void createListeners()

loadAllClasses

protected List<Class<?>> loadAllClasses(Iterable<String> interfaceNames)

loadType

protected org.osgi.service.blueprint.container.ReifiedType loadType(String typeName,
                                                                    ClassLoader fromClassLoader)

Overrides:

loadType in class AbstractRecipe

createProxy

protected Object createProxy(Callable<Object> dispatcher,
                             Set<Class<?>> interfaces)
                      throws Exception

Throws:

Exception

serviceChanged

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

Specified by:

serviceChanged in interface org.osgi.framework.ServiceListener

getInterfaceClass

protected Class getInterfaceClass()

getRuntimeClass

protected static Class getRuntimeClass(org.osgi.service.blueprint.reflect.ServiceReferenceMetadata metadata)

getBundleContextForServiceLookup

protected org.osgi.framework.BundleContext getBundleContextForServiceLookup()

setSatisfied

protected void setSatisfied(boolean s)

track

protected abstract void track(org.osgi.framework.ServiceReference reference)

untrack

protected abstract void untrack(org.osgi.framework.ServiceReference reference)

retrack

protected abstract void retrack()

updateListeners

protected void updateListeners()

bind

protected void bind(org.osgi.framework.ServiceReference reference,
                    Object service)

unbind

protected void unbind(org.osgi.framework.ServiceReference reference,
                      Object service)

getServiceReferences

public List<org.osgi.framework.ServiceReference> getServiceReferences()

getBestServiceReference

public org.osgi.framework.ServiceReference getBestServiceReference()