Fix the invoker to serialize the objects to json

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1180795 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 88 insertions, 0 deletions

diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcRequest.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcRequest.java
new file mode 100644
index 0000000000..8c0a71025a
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcRequest.java
@@ -0,0 +1,88 @@
+/*
+ * 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.jsonrpc.protocol;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+
+import org.apache.tuscany.sca.databinding.json.jackson.JacksonHelper;
+import org.json.JSONObject;
+
+/**
+ * http://json-rpc.org/wiki/specification
+ * A remote method is invoked by sending a request to a remote service. The request is a single object serialized using JSON.
+ * <br>It has three properties:
+ * <ul>
+ * <li>method - A String containing the name of the method to be invoked.
+ * <li>params - An Array of objects to pass as arguments to the method.
+ * <li>id - The request id. This can be of any type. It is used to match the response with the request that it is replying to.
+ * </ul> 
+ */
+public abstract class JsonRpcRequest {
+    protected String method;
+    protected Object id;
+    protected Object[] params;
+
+    protected JSONObject jsonObject;
+
+    public JsonRpcRequest(Object id, String method, Object[] params) {
+        super();
+        this.id = id;
+        this.method = method;
+        this.params = params;
+    }
+
+    protected JsonRpcRequest(JSONObject jsonObject) {
+        super();
+        this.jsonObject = jsonObject;
+    }
+
+    public JSONObject toJSONObject() throws Exception {
+        if (jsonObject != null) {
+            return jsonObject;
+        } else {
+            ByteArrayOutputStream bos = new ByteArrayOutputStream();
+            write(bos);
+            ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
+            jsonObject = JacksonHelper.MAPPER.readValue(bis, JSONObject.class);
+        }
+        return jsonObject;
+    }
+
+    public abstract void write(OutputStream os) throws Exception;
+
+    public boolean isNotification() {
+        return id == null || id == JSONObject.NULL;
+    }
+
+    public String getMethod() {
+        return method;
+    }
+
+    public Object getId() {
+        return id;
+    }
+
+    public Object[] getParams() {
+        return params;
+    }
+
+}