org.eclipse.gemini.blueprint.service.exporter.support.internal.support

Class PublishingServiceFactory

java.lang.Object

org.eclipse.gemini.blueprint.service.exporter.support.internal.support.PublishingServiceFactory

All Implemented Interfaces:

org.osgi.framework.ServiceFactory

public class PublishingServiceFactory
extends java.lang.Object
implements org.osgi.framework.ServiceFactory

ServiceFactory used for publishing the service beans. Acts as a a wrapper around special beans (such as ServiceFactory). Additionally, used to create TCCL managing proxies.

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.ClassLoader	aopClassLoader
private org.osgi.framework.BundleContext	bundleContext
private java.lang.Class<?>[]	classes
private java.lang.ClassLoader	classLoader
private boolean	createTCCLProxy
private java.lang.Object	lock
private static org.apache.commons.logging.Log	log logger
private java.util.Map<java.lang.Object,java.lang.ref.WeakReference<java.lang.Object>>	proxyCache proxy cache in case the given bean has a non-singleton scope
private LazyTargetResolver	targetResolver

Constructor Summary

Constructors

Constructor and Description
PublishingServiceFactory(LazyTargetResolver targetResolver, java.lang.Class<?>[] classes, boolean createTCCLProxy, java.lang.ClassLoader classLoader, java.lang.ClassLoader aopClassLoader, org.osgi.framework.BundleContext bundleContext) Constructs a new PublishingServiceFactory instance.

Method Summary

Modifier and Type	Method and Description
private java.lang.Object	createCLLProxy(java.lang.Object target) Proxy the target object with an interceptor that manages the context classloader.
java.lang.Object	getService(org.osgi.framework.Bundle bundle, org.osgi.framework.ServiceRegistration serviceRegistration)
void	ungetService(org.osgi.framework.Bundle bundle, org.osgi.framework.ServiceRegistration serviceRegistration, java.lang.Object service)

Methods inherited from class java.lang.Object

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

Field Detail

log

private static final org.apache.commons.logging.Log log

logger

proxyCache

private final java.util.Map<java.lang.Object,java.lang.ref.WeakReference<java.lang.Object>> proxyCache

proxy cache in case the given bean has a non-singleton scope

targetResolver

private final LazyTargetResolver targetResolver

classes

private final java.lang.Class<?>[] classes

createTCCLProxy

private final boolean createTCCLProxy

classLoader

private final java.lang.ClassLoader classLoader

aopClassLoader

private final java.lang.ClassLoader aopClassLoader

bundleContext

private final org.osgi.framework.BundleContext bundleContext

lock

private final java.lang.Object lock

Constructor Detail

PublishingServiceFactory

public PublishingServiceFactory(LazyTargetResolver targetResolver,
                                java.lang.Class<?>[] classes,
                                boolean createTCCLProxy,
                                java.lang.ClassLoader classLoader,
                                java.lang.ClassLoader aopClassLoader,
                                org.osgi.framework.BundleContext bundleContext)

Constructs a new PublishingServiceFactory instance. Since its an internal class, this constructor accepts a number of parameters to sacrifice readability for thread-safety.

Parameters:

classes -

target -

beanFactory -

targetBeanName -

createTCCLProxy -

classLoader -

aopClassLoader -

bundleContext -

Method Detail

getService

public java.lang.Object getService(org.osgi.framework.Bundle bundle,
                                   org.osgi.framework.ServiceRegistration serviceRegistration)

Specified by:

getService in interface org.osgi.framework.ServiceFactory

createCLLProxy

private java.lang.Object createCLLProxy(java.lang.Object target)

Proxy the target object with an interceptor that manages the context classloader. This should be applied only if such management is needed. Additionally, this method uses a cache to prevent multiple proxies to be created for the same object.

Parameters:

target -

Returns:

ungetService

public void ungetService(org.osgi.framework.Bundle bundle,
                         org.osgi.framework.ServiceRegistration serviceRegistration,
                         java.lang.Object service)

Specified by:

ungetService in interface org.osgi.framework.ServiceFactory