org.apache.tuscany.sca.implementation.osgi.runtime
Class OSGiTargetInvoker<T>

java.lang.Object
  org.apache.tuscany.sca.implementation.osgi.runtime.OSGiTargetInvoker<T>

All Implemented Interfaces:

Invoker

Direct Known Subclasses:

OSGiRemotableInvoker

public class OSGiTargetInvoker<T>
extends java.lang.Object
implements Invoker

Java->OSGi references use OSGiTargetInvoker to call methods from OSGi bundles OSGi->Java references use JDKProxyService and invocation handler and do not use this class OSGi->OSGi references go through OSGi reference mechanisms when a proxy is not used When a proxy is used, this invoker is used to call methods from OSGi bundles A proxy is used for OSGi->OSGi if 1) target reference properties are specified OR 2) there are one or more non-blocking methods in the target interface OR 3) scope is not COMPOSITE

Field Summary

protected InstanceWrapper<T>

target

Constructor Summary

OSGiTargetInvoker(Operation operation, OSGiImplementationProvider provider, RuntimeComponentService service)

Method Summary

protected InstanceWrapper	getInstance(java.lang.Object contextId) Resolves the target service instance or returns a cached one
Message	invoke(Message msg) Process a synchronous wire
protected java.lang.Object	invokeMethod(java.lang.Object instance, java.lang.reflect.Method m, Message msg)

Methods inherited from class java.lang.Object

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

Field Detail

target

protected InstanceWrapper<T> target

Constructor Detail

OSGiTargetInvoker

public OSGiTargetInvoker(Operation operation,
                         OSGiImplementationProvider provider,
                         RuntimeComponentService service)

Method Detail

getInstance

protected InstanceWrapper getInstance(java.lang.Object contextId)
                               throws TargetResolutionException,
                                      TargetInvocationException

Resolves the target service instance or returns a cached one

Throws:

TargetResolutionException

TargetInvocationException

invokeMethod

protected java.lang.Object invokeMethod(java.lang.Object instance,
                                        java.lang.reflect.Method m,
                                        Message msg)
                                 throws java.lang.reflect.InvocationTargetException

Throws:

java.lang.reflect.InvocationTargetException

invoke

public Message invoke(Message msg)

Description copied from interface: Invoker

Process a synchronous wire

Specified by:

invoke in interface Invoker

Parameters:

msg - The request Message for the wire

Returns:

The response Message from the wire