/*
* 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.corba.receivers;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMNamespace;
import org.apache.axiom.soap.SOAPFactory;
import org.apache.axis2.AxisFault;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.corba.deployer.CorbaConstants;
import org.apache.axis2.corba.exceptions.CorbaInvocationException;
import org.apache.axis2.corba.idl.types.IDL;
import org.apache.axis2.corba.idl.types.Member;
import org.apache.axis2.description.AxisMessage;
import org.apache.axis2.description.AxisOperation;
import org.apache.axis2.description.AxisService;
import org.apache.axis2.description.Parameter;
import org.apache.axis2.receivers.AbstractInOutMessageReceiver;
import org.apache.axis2.wsdl.WSDLConstants;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.omg.CORBA_2_3.ORB;
import javax.xml.namespace.QName;
import java.util.HashMap;
import java.util.Map;
public class CorbaMessageReceiver extends AbstractInOutMessageReceiver implements CorbaConstants {
private static Log log = LogFactory.getLog(CorbaMessageReceiver.class);
private ORB orb = null;
private Map invokerCache = new HashMap(); // Hashmap to cache invoker objects to increase preformance
public void invokeBusinessLogic(MessageContext inMessage, MessageContext outMessage) throws AxisFault {
try{
invoke(inMessage, outMessage);
} catch (org.omg.CORBA.TRANSIENT e) {
log.info("org.omg.CORBA.TRANSIENT exception thrown.");
/*
* If cannot connect to the corba server
* try again after clearing the cache
* (eg. if the Corba server is restarted)
*/
invokerCache.clear();
invoke(inMessage, outMessage);
}
}
private void invoke(MessageContext inMessage, MessageContext outMessage) throws AxisFault {
String methodName = null;
try {
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 = null;
QName elementQName;
methodName = op.getName().getLocalPart();
Invoker invoker = (Invoker) invokerCache.get(methodName);
if (invoker==null) {
if (orb==null) {
Parameter orbParam = service.getParameter(ORB_LITERAL);
orb = orbParam != null ? (ORB) orbParam.getValue() : CorbaUtil.getORB(service);
}
org.omg.CORBA.Object obj = CorbaUtil.resolveObject(service, orb);
Parameter idlParameter = service.getParameter(IDL_LITERAL);
if (idlParameter==null)
throw new CorbaInvocationException("IDL not found");
IDL idl = (IDL) idlParameter.getValue();
invoker = CorbaUtil.getInvoker(service, obj, idl, methodName);
invokerCache.put(methodName, invoker);
}
Object resObject = null;
Member[] params = null;
Object[] outParamValues = null;
if (inAxisMessage != null) {
if (inAxisMessage.getElementQName() != null) {
elementQName = inAxisMessage.getElementQName();
messageNameSpace = elementQName.getNamespaceURI();
OMNamespace namespace = methodElement.getNamespace();
if (messageNameSpace != null) {
if (namespace == null) {
throw new AxisFault("namespace mismatch require " +
messageNameSpace +
" found none");
}
if (!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 = CorbaUtil.extractParameters(methodElement, invoker.getParameterMembers());
invoker.setParameters(objectArray);
}
resObject = invoker.invoke();
params = invoker.getParameterMembers();
outParamValues = invoker.getOutParameterValuess();
}
if (messageNameSpace == null) {
AxisMessage outaxisMessage = op.getMessage(WSDLConstants.MESSAGE_LABEL_OUT_VALUE);
QName qname = outaxisMessage.getElementQName();
if (qname != null) {
messageNameSpace = qname.getNamespaceURI();
}
}
// Handling the response
SOAPFactory fac = getSOAPFactory(inMessage);
CorbaUtil.processResponse(resObject, params, outParamValues, invoker.getReturnType(), service,
methodName, fac, messageNameSpace, outMessage);
} catch (CorbaInvocationException e) {
String msg;
Throwable cause = e.getCause();
if (cause != null) {
msg = cause.getMessage();
if (msg == null) {
msg = "Exception occurred while trying to invoke service method " + methodName;
}
//log.error(msg, e);
if (cause instanceof AxisFault) {
throw (AxisFault) cause;
}
} else {
msg = e.getMessage();
}
throw new AxisFault(msg);
}
}
}