Event prototype: event binding with JMS-based default binding

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@713362 13f79535-47bb-0310-9956-ffa450edef68

11 files changed, 620 insertions, 43 deletions

diff --git a/sandbox/event/modules/binding-event/pom.xml b/sandbox/event/modules/binding-event/pom.xml
index ed9228ff7e..7e74d69039 100644
--- a/sandbox/event/modules/binding-event/pom.xml
+++ b/sandbox/event/modules/binding-event/pom.xml
@@ -28,7 +28,7 @@
     </parent>
 
     <artifactId>tuscany-binding-event</artifactId>
-    <name>Apache Tuscany SCA Default Binding Model</name>
+    <name>Apache Tuscany SCA Event Binding</name>
 
     <dependencies>
       
@@ -61,6 +61,25 @@
             <artifactId>tuscany-contribution-impl</artifactId>
             <version>1.4-EVENT-SNAPSHOT</version>
         </dependency>    
+
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-interface-wsdl</artifactId>
+            <version>1.4-EVENT-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-databinding-axiom</artifactId>
+            <version>1.4-EVENT-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-binding-ws-wsdlgen</artifactId>
+            <version>1.4-EVENT-SNAPSHOT</version>
+        </dependency>
+
         
         <dependency>
             <groupId>org.easymock</groupId>
diff --git a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/DefaultEventBindingFactory.java b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/DefaultEventBindingFactory.java
new file mode 100644
index 0000000000..7f666ed6a9
--- /dev/null
+++ b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/DefaultEventBindingFactory.java
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.binding.event;
+
+import org.apache.tuscany.sca.assembly.Binding;
+
+/**
+ * Factory to create base binding for producers and consumers
+ */
+public interface DefaultEventBindingFactory {
+
+
+    public Binding createDefaultEventBinding();
+
+}
diff --git a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingFactoryImpl.java b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingFactoryImpl.java
index 1b6300aab4..3451e13747 100644
--- a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingFactoryImpl.java
+++ b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingFactoryImpl.java
@@ -19,6 +19,7 @@
 
 package org.apache.tuscany.sca.binding.event.impl;
 
+import org.apache.tuscany.sca.assembly.Binding;
 import org.apache.tuscany.sca.assembly.EventBinding;
 import org.apache.tuscany.sca.assembly.EventBindingFactory;
 
@@ -29,12 +30,33 @@ import org.apache.tuscany.sca.assembly.EventBindingFactory;
  */
 public class EventBindingFactoryImpl implements EventBindingFactory {
     
+    /*
+     * Constructor
+     */
     public EventBindingFactoryImpl (){
-        
     }
 
+    /*
+     * (non-Javadoc)
+     * @see org.apache.tuscany.sca.assembly.EventBindingFactory#createEventBinding()
+     */
     public EventBinding createEventBinding() {
         return new EventBindingImpl();
     }
+
+    /*
+     * (non-Javadoc)
+     * @see org.apache.tuscany.sca.assembly.EventBindingFactory#createEventBinding(org.apache.tuscany.sca.assembly.Binding)
+     */
+    public EventBinding createEventBinding(Binding baseBinding) {
+        if (baseBinding instanceof EventBinding)
+            return (EventBinding)baseBinding;
+        
+        EventBindingImpl eventBinding = new EventBindingImpl();
+        eventBinding.setBaseBinding(baseBinding);
+        return eventBinding;
+    }
+    
+    
     
 }
diff --git a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingImpl.java b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingImpl.java
index b07651960f..cfe2a58247 100644
--- a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingImpl.java
+++ b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingImpl.java
@@ -26,8 +26,8 @@ import org.apache.tuscany.sca.assembly.Component;
 import org.apache.tuscany.sca.assembly.ComponentService;
 import org.apache.tuscany.sca.assembly.EventBinding;
 import org.apache.tuscany.sca.assembly.Extensible;
-import org.apache.tuscany.sca.assembly.OptimizableBinding;
 import org.apache.tuscany.sca.assembly.builder.AutomaticBinding;
+import org.apache.tuscany.sca.binding.event.DefaultEventBindingFactory;
 import org.apache.tuscany.sca.policy.Intent;
 import org.apache.tuscany.sca.policy.IntentAttachPointType;
 import org.apache.tuscany.sca.policy.PolicySet;
@@ -38,7 +38,7 @@ import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
  * 
  * @version $$
  */
-public class EventBindingImpl implements EventBinding, Extensible, PolicySetAttachPoint, OptimizableBinding, AutomaticBinding {
+public class EventBindingImpl implements EventBinding, Extensible, PolicySetAttachPoint, AutomaticBinding {
     private String name;
     private String uri;
     private Binding baseBinding;
@@ -59,7 +59,7 @@ public class EventBindingImpl implements EventBinding, Extensible, PolicySetAtta
     }
 
     /**
-     * Constructs a new SCA binding.
+     * Constructs a new Event binding.
      */
     protected EventBindingImpl() {
     }
@@ -240,4 +240,12 @@ public class EventBindingImpl implements EventBinding, Extensible, PolicySetAtta
     public boolean getIsAutomatic(){
         return this.isAutomatic;
     }
+    
+    public Binding createDefaultBaseBinding(DefaultEventBindingFactory factory) {
+        if (baseBinding == null)
+            baseBinding = factory.createDefaultEventBinding();
+        return baseBinding;
+            
+    }
+    
 }
diff --git a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingInterceptor.java b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingInterceptor.java
new file mode 100644
index 0000000000..cf15e54c33
--- /dev/null
+++ b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingInterceptor.java
@@ -0,0 +1,158 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.binding.event.impl;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+import org.apache.tuscany.sca.runtime.RuntimeWire;
+import org.osoa.sca.annotations.EventType;
+
+/**
+ * Policy interceptor for events
+ *
+ * @version $$
+ */
+public class EventBindingInterceptor implements Interceptor {
+    private Invoker next;
+    @SuppressWarnings("unused")
+    private Operation operation;
+    private RuntimeComponentService consumerService;
+    private Binding binding;
+    private InterfaceContractMapper interfaceContractMapper;
+
+    public EventBindingInterceptor(RuntimeComponentService consumerService, 
+            Binding binding, 
+            Operation operation,
+            InterfaceContractMapper interfaceContractMapper) {
+        super();
+        this.consumerService = consumerService;
+        this.operation = operation;
+        this.binding = binding;
+        this.interfaceContractMapper = interfaceContractMapper;
+    }
+
+    public Message invoke(Message msg) {
+        try {
+
+            Object arg = msg.getBody();
+            if (arg instanceof Object[]) {
+                arg = ((Object [])arg)[0];
+            }
+            
+            Operation consumerOperation = findOperation(consumerService.getInterfaceContract().getInterface().getOperations(), arg);
+
+            InvocationChain chain = getInvocationChain(consumerService.getRuntimeWire(binding), consumerOperation);
+            Invoker invoker = chain.getHeadInvoker();
+            while (invoker instanceof Interceptor && ((Interceptor)invoker).getNext() != null) {
+                invoker = ((Interceptor)invoker).getNext();
+            }
+            msg = invoker.invoke(msg);
+        } catch (Exception e) {
+            e.printStackTrace();
+            msg.setBody(e);
+        }
+        return msg;
+    }
+
+    public Invoker getNext() {
+        return next;
+    }
+
+    public void setNext(Invoker next) {
+        this.next = next;
+    }
+    
+    private String getEventType(Class<?> clazz) {
+        EventType eventTypeAnnotation = clazz.getAnnotation(EventType.class);
+        if (eventTypeAnnotation != null)
+            return eventTypeAnnotation.name();
+        if (clazz.getSuperclass() != null && clazz.getSuperclass() != Object.class) {
+            String eventType = getEventType(clazz.getSuperclass());
+            if (eventType != null)
+                return eventType;
+        }
+        for (Class<?> interfaze : clazz.getInterfaces()) {
+            String eventType = getEventType(interfaze);
+            if (eventType != null)
+                return eventType;
+        }
+        return null;
+    }
+    
+    @SuppressWarnings("unchecked")
+    private Operation findOperation(List<Operation> operations, Object arg) {
+        if (arg == null) {
+            return operations.get(0);
+        }
+        else {            
+            String eventType = getEventType(arg.getClass());
+
+            Operation firstMatching = null;
+            for (Operation op : operations) {
+                String[] eventTypes = op.getEventTypes();
+                if (eventTypes == null || eventTypes.length == 0) {
+                    
+                    if (op.getInputType().getLogical().get(0).getPhysical().isAssignableFrom(arg.getClass())) {
+                    
+                        // If no event type is specified, return the first method which 
+                        //   (1) has assignable parameters
+                        //   (2) has no explicit event types specified
+                        if (eventType == null) {
+
+                            return op;
+                        }
+                        else if (firstMatching == null) {
+                            // Remember first matching method without event types and
+                            // return this operation if no operation has explicitly specified
+                            // this event type.
+                            firstMatching = op;    
+                        }
+                    }
+                } else {
+                    for (String type : eventTypes) {
+                        if (type.equals(eventType)) {
+                            return op;
+                        }
+                    }                   
+                }
+                
+            }
+            return firstMatching;
+        }
+    }
+    
+    public InvocationChain getInvocationChain(RuntimeWire wire, Operation operation) {
+        for (InvocationChain chain : wire.getInvocationChains()) {
+            Operation op = chain.getTargetOperation();
+            if (interfaceContractMapper.isCompatible(operation, op, op.getInterface().isRemotable())) {
+                return chain;
+            } 
+        }
+        return null;
+    }
+    
+}
diff --git a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingInvoker.java b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingInvoker.java
index 481f3b2b0a..2c36acbf94 100644
--- a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingInvoker.java
+++ b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventBindingInvoker.java
@@ -19,54 +19,50 @@
 
 package org.apache.tuscany.sca.binding.event.impl;
 
-import org.apache.tuscany.sca.invocation.Interceptor;
-import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.interfacedef.Operation;
 import org.apache.tuscany.sca.invocation.Invoker;
 import org.apache.tuscany.sca.invocation.Message;
 import org.apache.tuscany.sca.invocation.DataExchangeSemantics;
+import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
 
 /**
- * TODO: Implement event binding invoker
+ * Event binding invoker
  * @version $$
  */
-public class EventBindingInvoker implements Interceptor, DataExchangeSemantics {
-    private InvocationChain chain;
+public class EventBindingInvoker implements Invoker, DataExchangeSemantics {
+    
+    private Invoker baseInvoker;
     
     /**
-     * Construct a EventBindingInvoker that delegates to the service invocaiton chain
+     * Construct a EventBindingInvoker that delegates to the service invocation chain
      * @param chain
      */
-    public EventBindingInvoker(InvocationChain chain) {
+    public EventBindingInvoker(ReferenceBindingProvider baseBindingProvider, Operation operation) {
         super();
-        this.chain = chain;
-    }
-
-    /**
-     * @see org.apache.tuscany.sca.invocation.Interceptor#getNext()
-     */
-    public Invoker getNext() {
-        return chain.getHeadInvoker();
+        
+        // TODO: Should we match producer event types with the event types of the operation?
+        baseInvoker = baseBindingProvider.createInvoker(operation);
     }
 
-    /**
-     * @see org.apache.tuscany.sca.invocation.Interceptor#setNext(org.apache.tuscany.sca.invocation.Invoker)
-     */
-    public void setNext(Invoker next) {
-        // NOOP
-    }
 
     /**
      * @see org.apache.tuscany.sca.invocation.Invoker#invoke(org.apache.tuscany.sca.invocation.Message)
      */
     public Message invoke(Message msg) {
-        return getNext().invoke(msg);
+        if (baseInvoker != null) {
+            return baseInvoker.invoke(msg);
+        }
+        else {
+            msg.setBody(null);
+            return msg;
+        }
     }
 
     /**
      * @see org.apache.tuscany.sca.invocation.DataExchangeSemantics#allowsPassByReference()
      */
     public boolean allowsPassByReference() {
-        return chain.allowsPassByReference();
+        return true;
     }
 
 }
diff --git a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventReferenceBindingProvider.java b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventReferenceBindingProvider.java
index bb09fb5b77..6faa1fbf6f 100644
--- a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventReferenceBindingProvider.java
+++ b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventReferenceBindingProvider.java
@@ -21,10 +21,17 @@ package org.apache.tuscany.sca.binding.event.impl;
 
 import java.util.logging.Logger;
 
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.binding.event.DefaultEventBindingFactory;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
 import org.apache.tuscany.sca.core.ExtensionPointRegistry;
 import org.apache.tuscany.sca.interfacedef.InterfaceContract;
 import org.apache.tuscany.sca.interfacedef.Operation;
 import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.provider.BindingProviderFactory;
+import org.apache.tuscany.sca.provider.PolicyProvider;
+import org.apache.tuscany.sca.provider.PolicyProviderFactory;
+import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
 import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
 import org.apache.tuscany.sca.runtime.RuntimeComponent;
 import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
@@ -36,18 +43,20 @@ import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
  */
 public class EventReferenceBindingProvider implements ReferenceBindingProvider {
 
-	@SuppressWarnings("unused")
     private static final Logger logger = Logger.getLogger(EventReferenceBindingProvider.class.getName());
 
 	@SuppressWarnings("unused")
     private RuntimeComponent component;
 	@SuppressWarnings("unused")
     private EventBindingImpl binding;
+    @SuppressWarnings("unused")
     private RuntimeComponentReference reference;
     private boolean started = false;
     private ReferenceBindingProvider baseBindingProvider;
 
 
+
+    @SuppressWarnings("unchecked")
     public EventReferenceBindingProvider(ExtensionPointRegistry extensionPoints,
                                               RuntimeComponent component,
                                               RuntimeComponentReference reference,
@@ -55,17 +64,47 @@ public class EventReferenceBindingProvider implements ReferenceBindingProvider {
         this.component = component;
         this.reference = reference;
         this.binding = binding;
+        
+
+        ProviderFactoryExtensionPoint providerFactories = extensionPoints.getExtensionPoint(ProviderFactoryExtensionPoint.class);
+        ModelFactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(ModelFactoryExtensionPoint.class);
+        
+        
+        Binding baseBinding = binding.getBaseBinding();
+        if (baseBinding == null) {
+
+            DefaultEventBindingFactory defaultEventBindingFactory = 
+                (DefaultEventBindingFactory)modelFactories.getFactory(DefaultEventBindingFactory.class);
+            
+            if (defaultEventBindingFactory == null) {
+                logger.severe("Default binding for Event binding not available");
+            }
+            baseBinding = binding.createDefaultBaseBinding(defaultEventBindingFactory);
+        }
 
-        // TODO: Set baseBindingProvider
+        BindingProviderFactory providerFactory =
+            (BindingProviderFactory)providerFactories.getProviderFactory(baseBinding.getClass());
+        if (providerFactory != null) {
+            baseBindingProvider =
+                providerFactory.createReferenceBindingProvider((RuntimeComponent)component,
+                                                               (RuntimeComponentReference)reference,
+                                                               baseBinding);
+            for (PolicyProviderFactory f : providerFactories.getPolicyProviderFactories()) {
+                PolicyProvider policyProvider = f.createReferencePolicyProvider(component, reference, baseBinding);
+                if (policyProvider != null) {
+                    reference.addPolicyProvider(baseBinding, policyProvider);
+                }
+            }
+        }
+        if (baseBindingProvider == null) {
+            throw new IllegalStateException("Provider factory not found for class: " + baseBinding.getClass().getName());
+        }
+        
     }
 
 
     public InterfaceContract getBindingInterfaceContract() {
-            if (reference.getReference() != null) {
-                return reference.getReference().getInterfaceContract();
-            } else {
-                return reference.getInterfaceContract();
-            }
+        return baseBindingProvider.getBindingInterfaceContract();
     }
 
     public boolean supportsOneWayInvocation() {
@@ -74,13 +113,14 @@ public class EventReferenceBindingProvider implements ReferenceBindingProvider {
 
 
     public Invoker createInvoker(Operation operation) {
-    	return baseBindingProvider.createInvoker(operation);
+        return new EventBindingInvoker(baseBindingProvider, operation);
     }
 
     public void start() {
         if (started) {
             return;
         } else {
+            baseBindingProvider.start();
             started = true;
         }
     }
@@ -89,6 +129,7 @@ public class EventReferenceBindingProvider implements ReferenceBindingProvider {
         if (!started) {
             return;
         } else {
+            baseBindingProvider.stop();
             started = false;
         }
 
diff --git a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventServiceBindingProvider.java b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventServiceBindingProvider.java
index 593795aae0..5f90089d73 100644
--- a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventServiceBindingProvider.java
+++ b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventServiceBindingProvider.java
@@ -20,11 +20,30 @@
 package org.apache.tuscany.sca.binding.event.impl;
 
 
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.EventBinding;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.binding.event.DefaultEventBindingFactory;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
 import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
 import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.InvocationChain;
+import org.apache.tuscany.sca.invocation.Phase;
+import org.apache.tuscany.sca.provider.AsyncServiceBindingProvider;
+import org.apache.tuscany.sca.provider.BindingProviderFactory;
+import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
 import org.apache.tuscany.sca.provider.ServiceBindingProvider;
 import org.apache.tuscany.sca.runtime.RuntimeComponent;
 import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+import org.apache.tuscany.sca.runtime.RuntimeWire;
 
 /**
  * The event service binding provider
@@ -32,22 +51,92 @@ import org.apache.tuscany.sca.runtime.RuntimeComponentService;
  * @version $$
  */
 public class EventServiceBindingProvider implements ServiceBindingProvider {
-  
+    
+    private static final Logger logger = Logger.getLogger(EventReferenceBindingProvider.class.getName());
+
     private RuntimeComponentService service;
+    private RuntimeComponentService eventService;
+    private ServiceBindingProvider baseBindingProvider;
+    
+    private InterfaceContract eventInterfaceContract;
+    
+    private EventBinding eventBinding;
     
+    private InterfaceContractMapper interfaceContractMapper;
+    
+    
+
+    @SuppressWarnings("unchecked")
     public EventServiceBindingProvider(ExtensionPointRegistry extensionPoints,
                                             RuntimeComponent component,
                                             RuntimeComponentService service,
                                             EventBindingImpl binding) {
-        this.service = service;
+        
+        
+        eventBinding = binding;
+        
+
+        ProviderFactoryExtensionPoint providerFactories = extensionPoints.getExtensionPoint(ProviderFactoryExtensionPoint.class);
+        ModelFactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(ModelFactoryExtensionPoint.class);     
+        
+        Binding baseBinding = binding.getBaseBinding();
+        if (baseBinding == null) {
+
+            DefaultEventBindingFactory defaultEventBindingFactory = 
+                (DefaultEventBindingFactory)modelFactories.getFactory(DefaultEventBindingFactory.class);
+            
+            if (defaultEventBindingFactory == null) {
+                logger.severe("Default binding for Event binding not available");
+            }
+            baseBinding = binding.createDefaultBaseBinding(defaultEventBindingFactory);
+        }
+
+        BindingProviderFactory providerFactory =
+            (BindingProviderFactory)providerFactories.getProviderFactory(baseBinding.getClass());
+        
+        JavaInterfaceFactory javaInterfaceFactory = modelFactories.getFactory(JavaInterfaceFactory.class);
+        
+        UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
+        interfaceContractMapper = utilities.getUtility(InterfaceContractMapper.class);
+        
+        if (providerFactory != null) {
+            try {
+                this.service = service; 
+                
+                eventService = (RuntimeComponentService)service.clone();
+                
+                JavaInterface iface = javaInterfaceFactory.createJavaInterface(EventServiceInterface.class);
+
+                eventInterfaceContract = javaInterfaceFactory.createJavaInterfaceContract();
+                eventInterfaceContract.setInterface(iface);
+                eventService.setInterfaceContract(eventInterfaceContract);
+                
+                if (service.getService() != null) {
+                    eventService.setService((Service)service.getService().clone());
+                    eventService.getService().setInterfaceContract(eventInterfaceContract);
+                }
+                
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+            
+            baseBindingProvider =
+                providerFactory.createServiceBindingProvider((RuntimeComponent)component,
+                                                             (RuntimeComponentService)eventService,
+                                                             baseBinding);
+            if (baseBindingProvider instanceof AsyncServiceBindingProvider) {
+                ((AsyncServiceBindingProvider)baseBindingProvider).setTargetBinding(binding);
+            }
+            
+        }
+        
+        if (baseBindingProvider == null) {
+            throw new IllegalStateException("Provider factory not found for class: " + baseBinding.getClass().getName());
+        }
     }
 
     public InterfaceContract getBindingInterfaceContract() {
-            if (service.getService() != null) {
-                return service.getService().getInterfaceContract();
-            } else {
-                return service.getInterfaceContract();
-            }
+        return service.getInterfaceContract();
     }
 
     public boolean supportsOneWayInvocation() {
@@ -55,9 +144,35 @@ public class EventServiceBindingProvider implements ServiceBindingProvider {
     }
     
     public void start() {
+        try {
+            for (RuntimeWire wire : service.getRuntimeWires()) {
+                RuntimeWire clonedWire = (RuntimeWire)wire.clone();
+                clonedWire.rebuild();
+                clonedWire.getSource().setInterfaceContract(eventInterfaceContract);
+                clonedWire.getTarget().setInterfaceContract(eventInterfaceContract);
+                if (clonedWire.getTarget().getContract() == service)
+                    clonedWire.getTarget().setContract(eventService);
+                eventService.getRuntimeWires().add(clonedWire);
+            }     
+
+            List<InvocationChain> chains = eventService.getRuntimeWire(eventBinding).getInvocationChains();
+            for (InvocationChain chain : chains) {
+                Interceptor interceptor = new EventBindingInterceptor(service,
+                        eventBinding,
+                        chain.getSourceOperation(),
+                        interfaceContractMapper);
+                chain.addInterceptor(Phase.IMPLEMENTATION_POLICY, interceptor);
+            }
+            
+            baseBindingProvider.start();
+        } catch (CloneNotSupportedException e) {
+            // Should never happen
+        }
     }
 
     public void stop() {
+        baseBindingProvider.stop();
     }
 
+
 }
diff --git a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventServiceInterface.java b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventServiceInterface.java
new file mode 100644
index 0000000000..1111bccfe1
--- /dev/null
+++ b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/impl/EventServiceInterface.java
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.binding.event.impl;
+
+import org.osoa.sca.annotations.Remotable;
+
+
+/**
+ * Interface for event services
+ *
+ * @version $$
+ */
+@Remotable
+public interface EventServiceInterface {
+    
+    void onEvent(Object event);
+}
diff --git a/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/xml/EventBindingProcessor.java b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/xml/EventBindingProcessor.java
new file mode 100644
index 0000000000..000be21d26
--- /dev/null
+++ b/sandbox/event/modules/binding-event/src/main/java/org/apache/tuscany/sca/binding/event/xml/EventBindingProcessor.java
@@ -0,0 +1,134 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.binding.event.xml;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.assembly.EventBinding;
+import org.apache.tuscany.sca.assembly.EventBindingFactory;
+import org.apache.tuscany.sca.assembly.xml.Constants;
+import org.apache.tuscany.sca.assembly.xml.PolicyAttachPointProcessor;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.service.ContributionWriteException;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+import org.apache.tuscany.sca.policy.IntentAttachPointTypeFactory;
+import org.apache.tuscany.sca.policy.PolicyFactory;
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+
+/**
+ * A processor to read the XML that describes the event binding.
+ *
+ * @version $$
+ */
+
+public class EventBindingProcessor implements StAXArtifactProcessor<EventBinding>, Constants{
+    
+    private PolicyFactory policyFactory;       
+    private EventBindingFactory eventBindingFactory;
+    private PolicyAttachPointProcessor policyProcessor;
+    private IntentAttachPointTypeFactory  intentAttachPointTypeFactory;
+    @SuppressWarnings("unused")
+    private Monitor monitor;
+
+    protected static final String BINDING_EVENT = "binding.event";
+    protected static final QName BINDING_EVENT_QNAME = new QName(Constants.SCA10_TUSCANY_NS, BINDING_EVENT);
+
+    public EventBindingProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) {
+        this.policyFactory = modelFactories.getFactory(PolicyFactory.class);
+        this.eventBindingFactory = modelFactories.getFactory(EventBindingFactory.class);
+        policyProcessor = new PolicyAttachPointProcessor(policyFactory);
+        this.intentAttachPointTypeFactory = modelFactories.getFactory(IntentAttachPointTypeFactory.class);
+        this.monitor = monitor;
+    }
+
+    public QName getArtifactType() {
+        return BINDING_EVENT_QNAME;
+    }
+
+    public Class<EventBinding> getModelType() {
+        return EventBinding.class;
+    }
+
+    public EventBinding read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+        EventBinding eventBinding = eventBindingFactory.createEventBinding();
+        IntentAttachPointType bindingType = intentAttachPointTypeFactory.createBindingType();
+        bindingType.setName(getArtifactType());
+        bindingType.setUnresolved(true);
+        ((PolicySetAttachPoint)eventBinding).setType(bindingType);
+        
+        // Read policies
+        policyProcessor.readPolicies(eventBinding, reader);
+        
+        // Read binding name
+        String name = reader.getAttributeValue(null, NAME);
+        if (name != null) {
+            eventBinding.setName(name);
+        }
+
+        // Read binding URI
+        String uri = reader.getAttributeValue(null, URI);
+        if (uri != null) {
+            eventBinding.setURI(uri);
+        }
+
+        // Skip to end element
+        while (reader.hasNext()) {
+            if (reader.next() == END_ELEMENT && BINDING_EVENT_QNAME.equals(reader.getName())) {
+                break;
+            }
+        }
+        return eventBinding;
+    }
+    
+    public void resolve(EventBinding model, ModelResolver resolver) throws ContributionResolveException {
+        policyProcessor.resolvePolicies(model, resolver);
+    }    
+
+    public void write(EventBinding eventBinding, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+
+        // Write <binding.event>
+        policyProcessor.writePolicyPrefixes(eventBinding, writer);
+        writer.writeStartElement(Constants.SCA10_TUSCANY_NS, BINDING_EVENT);
+        policyProcessor.writePolicyAttributes(eventBinding, writer);
+
+        // Write binding name
+        if (eventBinding.getName() != null) {
+            writer.writeAttribute(NAME, eventBinding.getName());
+        }
+        
+        // Write binding URI
+        if (eventBinding.getURI() != null) {
+            writer.writeAttribute(URI, eventBinding.getURI());
+        }
+        
+        writer.writeEndElement();
+    }
+    
+}
diff --git a/sandbox/event/modules/binding-event/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor b/sandbox/event/modules/binding-event/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
new file mode 100644
index 0000000000..a2ac94ebc2
--- /dev/null
+++ b/sandbox/event/modules/binding-event/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License. 
+
+# Implementation class for the artifact processor extension
+org.apache.tuscany.sca.binding.event.xml.EventBindingProcessor;qname=http://tuscany.apache.org/xmlns/sca/1.0#binding.event,model=org.apache.tuscany.sca.binding.event.impl.EventBindingImpl