Initial implementation for JSON wire format for REST binding

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@937850 13f79535-47bb-0310-9956-ffa450edef68

6 files changed, 273 insertions, 100 deletions

diff --git a/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTBindingListenerServlet.java b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTBindingListenerServlet.java
index 5739fbea77..3b0b69bcd7 100644
--- a/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTBindingListenerServlet.java
+++ b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTBindingListenerServlet.java
@@ -92,17 +92,33 @@ public class RESTBindingListenerServlet extends HttpServlet {
         RESTCacheContext cacheContext = null;
         try { 
            cacheContext = RESTCacheContext.getCacheContextFromRequest(request);
-        } catch (ParseException e) {        	
+        } catch (ParseException e) { 
+            
+        }
+        
+        if (path == null || path.length() == 0 || path.equals("/")) {
+            
         }
 
         // Route message based on availability of cache info and cache methods
-        if (( cacheContext != null ) && (cacheContext.isEnabled()) && (conditionalGetInvoker != null )) {        
-        	requestMessage.setBody(new Object[] {id, cacheContext});
-        	responseMessage = conditionalGetInvoker.invoke(requestMessage);
+        if (( cacheContext != null ) && (cacheContext.isEnabled()) && (conditionalGetInvoker != null )) {
+            if(id != null && id.length() > 0) {
+                requestMessage.setBody(new Object[] {id, cacheContext});
+            } else {
+                requestMessage.setBody(new Object[] {cacheContext});
+            }
+
+            responseMessage = conditionalGetInvoker.invoke(requestMessage);
         } else {
-        	requestMessage.setBody(new Object[] {id});
-        	responseMessage = getInvoker.invoke(requestMessage);
+            if(id != null && id.length() > 0) {
+                requestMessage.setBody(new Object[] {id});
+            } else {
+                //requestMessage.setBody(new Object[] {id});
+            }
+
+            responseMessage = getInvoker.invoke(requestMessage);
         }
+        
         if (responseMessage.isFault()) {
         	Object body = responseMessage.getBody();
         	
diff --git a/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTGetListenerServlet.java b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTGetListenerServlet.java
deleted file mode 100644
index b08fa4b201..0000000000
--- a/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTGetListenerServlet.java
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * 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.rest.provider;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.net.URLDecoder;
-
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServlet;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import org.apache.tuscany.sca.invocation.Invoker;
-import org.apache.tuscany.sca.invocation.Message;
-import org.apache.tuscany.sca.invocation.MessageFactory;
-
-/**
- * Servlet responsible for dispatching HTTP GET requests to the
- * target component implementation.
- *
- * @version $Rev$ $Date$
- */
-public class RESTGetListenerServlet extends HttpServlet {
-    private static final long serialVersionUID = 2865466417329430610L;
-    
-    private MessageFactory messageFactory;
-    private Invoker getInvoker;
-    
-    /**
-     * Constructs a new HTTPServiceListenerServlet.
-     */
-    public RESTGetListenerServlet(Invoker getInvoker, MessageFactory messageFactory) {
-        this.getInvoker = getInvoker;
-        this.messageFactory = messageFactory;
-    }
-
-    @Override
-    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
-
-        // Get the request path
-        String path = URLDecoder.decode(request.getRequestURI().substring(request.getServletPath().length()), "UTF-8");
-        if (path.length() ==0) {
-            
-            // Redirect to a URL ending with / to make relative hrefs work
-            // relative to the served resource.
-            response.sendRedirect(request.getRequestURL().append('/').toString());
-            return;
-        }
-
-        // Invoke the get operation on the service implementation
-        Message requestMessage = messageFactory.createMessage();
-        String id = path.substring(1);
-        requestMessage.setBody(new Object[] {id});
-        Message responseMessage = getInvoker.invoke(requestMessage);
-        if (responseMessage.isFault()) {
-            throw new ServletException((Throwable)responseMessage.getBody());
-        }
-        
-        // Write the response from the service implementation to the response
-        // output stream
-        InputStream is = (InputStream)responseMessage.getBody();
-        OutputStream os = response.getOutputStream(); 
-        byte[] buffer = new byte[2048];
-        for (;;) {
-            int n = is.read(buffer);
-            if (n <= 0)
-                break;
-            os.write(buffer, 0, n);
-        }
-        os.flush();
-        os.close();
-        
-    }
-
-}
diff --git a/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatInterceptor.java b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatInterceptor.java
new file mode 100644
index 0000000000..e5ca19b78f
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatInterceptor.java
@@ -0,0 +1,52 @@
+/*
+ * 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.rest.wireformat.json.provider;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+
+/**
+ * JSON wire format Interceptor.
+ * 
+ * @version $Rev$ $Date$
+*/
+public class JSONWireFormatInterceptor implements Interceptor {
+    private Invoker next;
+
+    public JSONWireFormatInterceptor(ExtensionPointRegistry extensionPoints, RuntimeEndpoint endpoint) {
+
+    }
+    
+    public Invoker getNext() {
+        return next;
+    }
+
+    public void setNext(Invoker next) {
+        this.next = next;
+    }
+
+    public Message invoke(Message msg) {
+        return getNext().invoke(msg);
+    }
+
+}
diff --git a/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatProviderFctory.java b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatProviderFctory.java
new file mode 100644
index 0000000000..8abc979c02
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatProviderFctory.java
@@ -0,0 +1,48 @@
+/*
+ * 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.rest.wireformat.json.provider;
+
+import org.apache.tuscany.sca.binding.rest.wireformat.json.JSONWireFormat;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.provider.WireFormatProvider;
+import org.apache.tuscany.sca.provider.WireFormatProviderFactory;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+
+
+public class JSONWireFormatProviderFctory implements WireFormatProviderFactory<JSONWireFormat>{
+    private ExtensionPointRegistry extensionPoints;
+
+    public JSONWireFormatProviderFctory(ExtensionPointRegistry extensionPoints) {
+        this.extensionPoints = extensionPoints;
+    }
+    public WireFormatProvider createReferenceWireFormatProvider(RuntimeEndpointReference endpointReference) {
+        return new JSONWireFormatReferenceProvider(extensionPoints, endpointReference);
+    }
+
+    public WireFormatProvider createServiceWireFormatProvider(RuntimeEndpoint endpoint) {
+        return new JSONWireFormatServiceProvider(extensionPoints, endpoint);
+    }
+
+    public Class<JSONWireFormat> getModelType() {
+        return JSONWireFormat.class;
+    }
+
+}
diff --git a/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatReferenceProvider.java b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatReferenceProvider.java
new file mode 100644
index 0000000000..e1dce660ca
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatReferenceProvider.java
@@ -0,0 +1,49 @@
+/*
+ * 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.rest.wireformat.json.provider;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.Phase;
+import org.apache.tuscany.sca.provider.WireFormatProvider;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+
+public class JSONWireFormatReferenceProvider implements WireFormatProvider {
+    private ExtensionPointRegistry extensionPoints;
+    private RuntimeEndpointReference endpointReference;
+
+    public JSONWireFormatReferenceProvider(ExtensionPointRegistry extensionPoints,RuntimeEndpointReference endpointReference ) {
+        this.extensionPoints = extensionPoints;
+        this.endpointReference = endpointReference;
+    }
+    public InterfaceContract configureWireFormatInterfaceContract(InterfaceContract interfaceContract) {
+        return null;
+    }
+
+    public Interceptor createInterceptor() {
+        return null;
+    }
+
+    public String getPhase() {
+        return Phase.REFERENCE_BINDING_WIREFORMAT;
+    }
+
+}
diff --git a/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatServiceProvider.java b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatServiceProvider.java
new file mode 100644
index 0000000000..b4d59bd5ad
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/wireformat/json/provider/JSONWireFormatServiceProvider.java
@@ -0,0 +1,102 @@
+/*
+ * 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.rest.wireformat.json.provider;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.binding.rest.wireformat.json.JSONWireFormat;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.databinding.javabeans.SimpleJavaDataBinding;
+import org.apache.tuscany.sca.databinding.json.JSONDataBinding;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.Phase;
+import org.apache.tuscany.sca.provider.WireFormatProvider;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+
+public class JSONWireFormatServiceProvider implements WireFormatProvider {
+    private ExtensionPointRegistry extensionPoints;
+    private RuntimeEndpoint endpoint;
+    
+    private InterfaceContract serviceContract;
+    private Binding binding;
+    
+    public JSONWireFormatServiceProvider(ExtensionPointRegistry extensionPoints, RuntimeEndpoint endpoint) {
+        this.extensionPoints = extensionPoints;
+        this.endpoint = endpoint;
+        this.binding = endpoint.getBinding();
+        
+    }
+    
+    public InterfaceContract configureWireFormatInterfaceContract(InterfaceContract interfaceContract) {
+        serviceContract = interfaceContract;
+        
+        //set JSON databinding
+        setDataBinding(serviceContract.getInterface());
+        
+        //make JSON databinding default
+        serviceContract.getInterface().resetDataBinding(JSONDataBinding.NAME);
+        
+        return serviceContract;
+    }
+
+    public Interceptor createInterceptor() {
+        if(binding.getRequestWireFormat() != null && binding.getRequestWireFormat() instanceof JSONWireFormat) {
+            return new JSONWireFormatInterceptor(extensionPoints, endpoint);
+        }
+        return null;
+    }
+
+    public String getPhase() {
+        return Phase.SERVICE_BINDING_WIREFORMAT;
+    }
+
+    
+    /**
+     * Utility method to reset data binding for the interface contract
+     * @param interfaze
+     */
+    @SuppressWarnings({"deprecation", "unchecked"})
+    private void setDataBinding(Interface interfaze) {
+        List<Operation> operations = interfaze.getOperations();
+        for (Operation operation : operations) {
+            operation.setDataBinding(JSONDataBinding.NAME);
+            DataType<List<DataType>> inputType = operation.getInputType();
+            if (inputType != null) {
+                List<DataType> logical = inputType.getLogical();
+                for (DataType inArg : logical) {
+                    if (!SimpleJavaDataBinding.NAME.equals(inArg.getDataBinding())) {
+                        inArg.setDataBinding(JSONDataBinding.NAME);
+                    } 
+                }
+            }
+            DataType outputType = operation.getOutputType();
+            if (outputType != null) {
+                if (!SimpleJavaDataBinding.NAME.equals(outputType.getDataBinding())) {
+                    outputType.setDataBinding(JSONDataBinding.NAME);
+                }
+            }
+        }
+    }
+}