/*
* 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.gson.factory.JsonConstant;
import org.apache.axis2.rpc.receivers.RPCInOnlyMessageReceiver;
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 JsonInOnlyRPCMessageReceiver extends RPCInOnlyMessageReceiver {
private static final Log log = LogFactory.getLog(JsonInOnlyRPCMessageReceiver.class);
@Override
public void invokeBusinessLogic(MessageContext inMessage) 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);
} else {
throw new AxisFault("GsonXMLStreamReader should have put as a property of messageContext " +
"to evaluate JSON message");
}
} else {
super.invokeBusinessLogic(inMessage); // call RPCMessageReceiver if inputstream is null
}
}
public void invokeService(JsonReader jsonReader, Object serviceObj, String operation_name) 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;
JsonUtils.invokeServiceClass(jsonReader, serviceObj, method, paramClasses, paramCount);
} 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);
}
}
}