1 files changed, 81 insertions, 0 deletions
diff --git a/tags/java/sca/1.5.1/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRService.java b/tags/java/sca/1.5.1/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRService.java
new file mode 100644
index 0000000000..7d5a7f1677
--- /dev/null
+++ b/tags/java/sca/1.5.1/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRService.java
@@ -0,0 +1,81 @@
+/*
+ * 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.dwr;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.extension.helper.ComponentLifecycle;
+import org.apache.tuscany.sca.host.http.ServletHost;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceUtil;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+import org.apache.tuscany.sca.runtime.RuntimeWire;
+
+/**
+ * DWR Service.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DWRService implements ComponentLifecycle {
+
+    private RuntimeComponent rc;
+    private RuntimeComponentService rcs;
+    private Binding binding;
+    private ServletHost servletHost;
+    
+    static final String SERVLET_PATH = "/SCADomain/*";
+
+    public DWRService(RuntimeComponent rc, RuntimeComponentService rcs, Binding binding, DWRBinding ab, ServletHost servletHost) {
+        this.rc = rc;
+        this.rcs = rcs;
+        this.binding = binding;
+        this.servletHost = servletHost;
+    }
+
+    public void start() {
+        
+        DWRServlet servlet = (DWRServlet) servletHost.getServletMapping(SERVLET_PATH);
+        if (servlet == null) {
+            servlet = new DWRServlet();
+            servletHost.addServletMapping(SERVLET_PATH, servlet);
+        }
+        
+        // Create a Java proxy to the target service
+        Class<?> type = ((JavaInterface)rcs.getInterfaceContract().getInterface()).getJavaClass();
+        Object proxy = Proxy.newProxyInstance(type.getClassLoader(), new Class[]{type}, new InvocationHandler() {
+            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+                RuntimeWire wire = rcs.getRuntimeWire(binding);
+                Operation op = JavaInterfaceUtil.findOperation(method, rcs.getInterfaceContract().getInterface().getOperations());
+                return wire.invoke(op, args);
+            }});
+
+        servlet.addService(binding.getName(), type, proxy);
+    }
+
+    public void stop() {
+        servletHost.removeServletMapping(SERVLET_PATH);
+    }
+
+}