1 files changed, 126 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/RequestContextImpl.java b/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/RequestContextImpl.java
new file mode 100644
index 0000000000..6aaa6186b9
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/context/impl/RequestContextImpl.java
@@ -0,0 +1,126 @@
+/*
+ * 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.core.context.impl;
+
+import java.util.List;
+
+import javax.security.auth.Subject;
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.context.ThreadMessageContext;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.oasisopen.sca.RequestContext;
+import org.oasisopen.sca.ServiceReference;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class RequestContextImpl implements RequestContext {
+
+    public RequestContextImpl(RuntimeComponent component) {
+    }
+
+    public Subject getSecuritySubject() {
+        
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        
+        if (msgContext == null){
+            // message in thread context could be null if the user has 
+            // spun up a new thread inside their component implementation 
+            return null;
+        }
+        
+        Subject subject = null;
+        for (Object header : msgContext.getHeaders().values()){
+            if (header instanceof Subject){
+                subject  = (Subject)header;
+                break;
+            }
+        }
+        return subject;
+    }
+
+    public String getServiceName() {
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        
+        if (msgContext != null &&
+            msgContext.getTo() != null){
+            return msgContext.getTo().getService().getName();
+        } else {
+            // message in thread context could be null (or the default message where to == null) 
+            // if the user has spun up a new thread inside their component implementation 
+            return null;
+        }
+    }
+
+    public <B> ServiceReference<B> getServiceReference() {
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        if (msgContext == null || 
+            msgContext.getTo() == null){
+            // message in thread context could be null (or the default message where to == null)
+            // if the user has spun up a new thread inside their component implementation 
+            return null;
+        }
+        // FIXME: [rfeng] Is this the service reference matching the caller side?
+        RuntimeEndpoint to = (RuntimeEndpoint) msgContext.getTo();
+        RuntimeComponent component = (RuntimeComponent) to.getComponent();
+        
+        ServiceReference<B> callableReference = component.getComponentContext().getServiceReference(null, to);
+        
+        return callableReference;
+    }
+
+    public <CB> CB getCallback() {
+        ServiceReference<CB> cb = getCallbackReference(); 
+        if (cb == null) {
+            return null;
+        }
+        return cb.getService();
+    }
+
+    @SuppressWarnings("unchecked")
+    public <CB> ServiceReference<CB> getCallbackReference() {
+        Message msgContext = ThreadMessageContext.getMessageContext();
+        if (msgContext == null || 
+            msgContext.getTo() == null){
+            // message in thread context could be null (or the default message where to == null)
+            // if the user has spun up a new thread inside their component implementation 
+            return null;
+        }
+        
+        Endpoint to = msgContext.getTo();
+        RuntimeComponentService service = (RuntimeComponentService) to.getService();
+        RuntimeComponentReference callbackReference = (RuntimeComponentReference)service.getCallbackReference();
+        if (callbackReference == null) {
+            return null;
+        }
+        JavaInterface javaInterface = (JavaInterface) callbackReference.getInterfaceContract().getInterface();
+        Class<CB> javaClass = (Class<CB>)javaInterface.getJavaClass();
+        List<EndpointReference> wires = callbackReference.getEndpointReferences();
+        ServiceReferenceImpl ref = new CallbackServiceReferenceImpl(javaClass, wires);
+
+        return ref;
+    }
+}