1 files changed, 129 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6.1-TUSCANY-3909/binding-http-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/http/operationselector/jsonrpc/provider/JSONRPCOperationSelectorInterceptor.java b/sca-java-1.x/tags/1.6.1-TUSCANY-3909/binding-http-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/http/operationselector/jsonrpc/provider/JSONRPCOperationSelectorInterceptor.java
new file mode 100644
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+++ b/sca-java-1.x/tags/1.6.1-TUSCANY-3909/binding-http-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/http/operationselector/jsonrpc/provider/JSONRPCOperationSelectorInterceptor.java
@@ -0,0 +1,129 @@
+/*
+ * 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.http.operationselector.jsonrpc.provider;
+
+import java.io.CharArrayWriter;
+import java.util.List;
+
+import org.apache.tuscany.sca.binding.http.HTTPBinding;
+import org.apache.tuscany.sca.binding.http.HTTPBindingContext;
+import org.apache.tuscany.sca.interfacedef.Operation;
+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.invocation.MessageFactory;
+import org.apache.tuscany.sca.runtime.RuntimeWire;
+import org.json.JSONObject;
+
+import com.metaparadigm.jsonrpc.JSONRPCResult;
+
+/**
+ * JSON-RPC Operation Selector Interceptor
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JSONRPCOperationSelectorInterceptor implements Interceptor {
+    private Invoker next;
+    
+    private RuntimeWire runtimeWire;
+    private HTTPBinding binding;
+    
+    private MessageFactory messageFactory;
+    
+    public JSONRPCOperationSelectorInterceptor(HTTPBinding binding, RuntimeWire runtimeWire, MessageFactory messageFactory) {
+        this.binding = binding;
+        this.runtimeWire = runtimeWire;
+        this.messageFactory = messageFactory;
+    }
+
+    public Invoker getNext() {
+        return this.next;
+    }
+
+    public void setNext(Invoker next) {
+        this.next = next;
+    }
+
+    public Message invoke(Message msg) {
+        
+        HTTPBindingContext bindingContext = msg.getBindingContext();
+        if ("smd".equals(bindingContext.getHttpRequest().getQueryString())) {
+            return getNext().invoke(msg);
+        }
+        
+        JSONObject jsonReq = null;
+        String method = null;
+        try {
+            Object[] args = msg.getBody();
+            CharArrayWriter data = (CharArrayWriter) args[0];
+            jsonReq = new JSONObject(data.toString());
+            method = jsonReq.getString("method");
+        } catch (Exception e) {
+            Throwable exception = new RuntimeException("Unable to parse request", e);
+        }
+        
+        Operation jsonOperation = findOperation(method);
+        msg.setOperation(jsonOperation);
+        msg.setBody(jsonReq);
+        
+        return getNext().invoke(msg);
+    }
+    
+    /**
+     * Find the operation from the component service contract
+     * @param componentService
+     * @param method
+     * @return
+     */
+    private Operation findOperation(String method) {
+        if (method.contains(".")) {
+            method = method.substring(method.lastIndexOf(".") + 1);
+        }
+
+        List<Operation> operations = runtimeWire.getTarget().getInterfaceContract().getInterface().getOperations(); 
+
+        Operation result = null;
+        for (Operation o : operations) {
+            if (o.getName().equalsIgnoreCase(method)) {
+                result = o;
+                break;
+            }
+        }
+
+        return result;
+    }
+    
+
+
+    /**
+     * Create a Fault Message with a JSON representation of the current exception
+     * @param throwable
+     * @return
+     */
+    private Message createJSONFaultMessage(Throwable throwable) {
+        Message jsonFaultMessage = messageFactory.createMessage();
+        
+        JSONRPCResult jsonFault = new JSONRPCResult(JSONRPCResult.CODE_REMOTE_EXCEPTION, null, throwable);
+        jsonFaultMessage.setBody(jsonFault);
+        
+        return jsonFaultMessage;
+    }
+
+}