/*
* Copyright 2004,2005 The Apache Software Foundation.
*
* Licensed 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.rpc.receivers;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMNamespace;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axiom.soap.SOAPFactory;
import org.apache.axis2.AxisFault;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.description.AxisMessage;
import org.apache.axis2.description.AxisOperation;
import org.apache.axis2.description.AxisService;
import org.apache.axis2.receivers.AbstractInOutAsyncMessageReceiver;
import org.apache.axis2.wsdl.WSDLConstants;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.xml.namespace.QName;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class RPCInOutAsyncMessageReceiver extends AbstractInOutAsyncMessageReceiver {
private Method method;
private static Log log = LogFactory.getLog(RPCInOnlyMessageReceiver.class);
/**
* reflect and get the Java method
* - for each i'th param in the java method
* - get the first child's i'th child
* -if the elem has an xsi:type attr then find the deserializer for it
* - if not found,
* lookup deser for th i'th param (java type)
* - error if not found
* - deserialize & save in an object array
* - end for
* <p/>
* - invoke method and get the return value
* <p/>
* - look up serializer for return value based on the value and type
* <p/>
* - create response msg and add return value as grand child of <soap:body>
*
* @param inMessage
* @param outMessage
* @throws AxisFault
*/
public void invokeBusinessLogic(MessageContext inMessage, MessageContext outMessage) throws AxisFault {
try {
// get the implementation class for the Web Service
Object obj = getTheImplementationObject(inMessage);
Class ImplClass = obj.getClass();
AxisOperation op = inMessage.getOperationContext().getAxisOperation();
AxisService service = inMessage.getAxisService();
OMElement methodElement = inMessage.getEnvelope().getBody()
.getFirstElement();
AxisMessage inaxisMessage = op.getMessage(WSDLConstants.MESSAGE_LABEL_IN_VALUE);
String messageNameSpace;
QName elementQName;
String methodName = op.getName().getLocalPart();
Method[] methods = ImplClass.getMethods();
for (int i = 0; i < methods.length; i++) {
if (methods[i].getName().equals(methodName)) {
this.method = methods[i];
break;
}
}
Object resObject = null;
if (inaxisMessage != null) {
if (inaxisMessage.getElementQName() == null) {
// method accept empty SOAPbody
resObject = method.invoke(obj, new Object[0]);
} else {
elementQName = inaxisMessage.getElementQName();
messageNameSpace = elementQName.getNamespaceURI();
OMNamespace namespace = methodElement.getNamespace();
if (messageNameSpace != null) {
if (namespace == null || !messageNameSpace.equals(namespace.getNamespaceURI())) {
throw new AxisFault("namespace mismatch require " +
messageNameSpace +
" found " + methodElement.getNamespace().getNamespaceURI());
}
} else if (namespace != null) {
throw new AxisFault("namespace mismatch. Axis Oepration expects non-namespace " +
"qualified element. But received a namespace qualified element");
}
Object[] objectArray = RPCUtil.processRequest(methodElement,
method, inMessage.getAxisService().getObjectSupplier());
resObject = method.invoke(obj, objectArray);
}
}
SOAPFactory fac = getSOAPFactory(inMessage);
// Handling the response
OMNamespace ns = fac.createOMNamespace(service.getSchematargetNamespace(),
service.getSchematargetNamespacePrefix());
SOAPEnvelope envelope = fac.getDefaultEnvelope();
OMElement bodyContent = null;
RPCUtil.processResponse(resObject, service,
method, envelope, fac, ns, bodyContent, outMessage);
} catch (InvocationTargetException e) {
String msg = null;
Throwable cause = e.getCause();
if (cause != null) {
msg = cause.getMessage();
}
if (msg == null) {
msg = "Exception occurred while trying to invoke service method " +
method.getName();
}
log.error(msg, e);
if (cause instanceof AxisFault) {
throw (AxisFault) cause;
}
throw new AxisFault(msg);
} catch (Exception e) {
String msg = "Exception occurred while trying to invoke service method " +
method.getName();
log.error(msg, e);
throw new AxisFault(msg, e);
}
}
}