| /* |
| * 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.axis2.json.gson.rpc; |
| |
| import com.google.gson.stream.JsonReader; |
| import org.apache.axis2.AxisFault; |
| import org.apache.axis2.context.MessageContext; |
| import org.apache.axis2.description.AxisOperation; |
| import org.apache.axis2.json.gson.GsonXMLStreamReader; |
| import org.apache.axis2.json.factory.JsonConstant; |
| import org.apache.axis2.rpc.receivers.RPCMessageReceiver; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import java.io.IOException; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| |
| public class JsonRpcMessageReceiver extends RPCMessageReceiver { |
| private static final Log log = LogFactory.getLog(RPCMessageReceiver.class); |
| |
| @Override |
| public void invokeBusinessLogic(MessageContext inMessage, MessageContext outMessage) throws AxisFault { |
| Object tempObj = inMessage.getProperty(JsonConstant.IS_JSON_STREAM); |
| boolean isJsonStream; |
| if (tempObj != null) { |
| isJsonStream = Boolean.valueOf(tempObj.toString()); |
| } else { |
| // if IS_JSON_STREAM property is not set then it is not a JSON request |
| isJsonStream = false; |
| } |
| if (isJsonStream) { |
| Object o = inMessage.getProperty(JsonConstant.GSON_XML_STREAM_READER); |
| if (o != null) { |
| GsonXMLStreamReader gsonXMLStreamReader = (GsonXMLStreamReader)o; |
| JsonReader jsonReader = gsonXMLStreamReader.getJsonReader(); |
| if (jsonReader == null) { |
| throw new AxisFault("JsonReader should not be null"); |
| } |
| Object serviceObj = getTheImplementationObject(inMessage); |
| AxisOperation op = inMessage.getOperationContext().getAxisOperation(); |
| String operation = op.getName().getLocalPart(); |
| invokeService(jsonReader, serviceObj, operation , outMessage); |
| } else { |
| throw new AxisFault("GsonXMLStreamReader should be put as a property of messageContext " + |
| "to evaluate JSON message"); |
| } |
| } else { |
| super.invokeBusinessLogic(inMessage, outMessage); // call RPCMessageReceiver if inputstream is null |
| } |
| } |
| |
| public void invokeService(JsonReader jsonReader, Object serviceObj, String operation_name, |
| MessageContext outMes) throws AxisFault { |
| String msg; |
| Class implClass = serviceObj.getClass(); |
| Method[] allMethods = implClass.getDeclaredMethods(); |
| Method method = JsonUtils.getOpMethod(operation_name, allMethods); |
| Class[] paramClasses = method.getParameterTypes(); |
| try { |
| int paramCount = paramClasses.length; |
| Object retObj = JsonUtils.invokeServiceClass(jsonReader, serviceObj, method, paramClasses, paramCount); |
| |
| // handle response |
| outMes.setProperty(JsonConstant.RETURN_OBJECT, retObj); |
| outMes.setProperty(JsonConstant.RETURN_TYPE, method.getReturnType()); |
| |
| } catch (IllegalAccessException e) { |
| msg = "Does not have access to " + |
| "the definition of the specified class, field, method or constructor"; |
| log.error(msg, e); |
| throw AxisFault.makeFault(e); |
| |
| } catch (InvocationTargetException e) { |
| msg = "Exception occurred while trying to invoke service method " + |
| (method != null ? method.getName() : "null"); |
| log.error(msg, e); |
| throw AxisFault.makeFault(e); |
| } catch (IOException e) { |
| msg = "Exception occur while encording or " + |
| "access to the input string at the JsonRpcMessageReceiver"; |
| log.error(msg, e); |
| throw AxisFault.makeFault(e); |
| } |
| } |
| } |