/*
* Copyright 2001-2004 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.juddi.transport.axis;
import org.apache.axis.AxisFault;
import org.apache.axis.Message;
import org.apache.axis.MessageContext;
import org.apache.axis.message.SOAPBodyElement;
import org.apache.axis.message.SOAPEnvelope;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.juddi.IRegistry;
import org.apache.juddi.datatype.RegistryObject;
import org.apache.juddi.datatype.response.DispositionReport;
import org.apache.juddi.error.BusyException;
import org.apache.juddi.error.RegistryException;
import org.apache.juddi.error.UnsupportedException;
import org.apache.juddi.handler.DispositionReportHandler;
import org.apache.juddi.handler.HandlerMaker;
import org.apache.juddi.handler.IHandler;
import org.apache.juddi.monitor.Monitor;
import org.apache.juddi.monitor.MonitorFactory;
import org.apache.juddi.registry.RegistryEngine;
import org.apache.juddi.registry.RegistryServlet;
import org.apache.juddi.util.Config;
import org.apache.juddi.util.xml.XMLUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
/**
* @author Steve Viens (sviens@apache.org)
* @author Anou Mana (anou_mana@users.sourceforge.net)
*/
public class AxisProcessor
{
// private reference to the jUDDI logger
private static Log log = LogFactory.getLog(AxisProcessor.class);
// jUDDI XML Handler maker
private static HandlerMaker maker = HandlerMaker.getInstance();
/**
* @param soapResponse
* @param messageContext
*/
public AxisProcessor(Message soapResponse,MessageContext messageContext)
{
// get a new monitor from the MonitorFactory
Monitor monitor = MonitorFactory.getMonitor();
// if monitoring is turned on inspect the MessageContext
if (monitor != null)
monitor.inspectMessageContext(messageContext);
// grab a reference to the SOAP request from
// the Message Context
Message soapRequest = messageContext.getRequestMessage();
// write the SOAP request XML out to the log (on debug)
try { log.debug(soapRequest.getSOAPPartAsString()); }
catch(AxisFault af) {
af.printStackTrace();
}
Element request = null;
Element response = null;
String function = null;
String generic = null;
try
{
// pull the uddi request xml element from
// the body of the soapRequest
SOAPEnvelope env = soapRequest.getSOAPEnvelope();
SOAPBodyElement requestBody = env.getFirstBody();
request = requestBody.getAsDOM();
// make the monitor inspect the SOAP Body
// DOM element
if (monitor != null)
monitor.inspectUDDIRequest(request);
// grab the function name from this element -
// we'll need this to lookup the xml handler
// to use to unmarshal the xml into a juddi
// object.
function = request.getLocalName();
// grab the generic value - we'll need it in
// the event that an exception is thrown.
generic = request.getAttribute("generic");
if (generic == null)
generic = IRegistry.UDDI_V2_GENERIC;
// lookup the appropriate xml handler, throw
// an UnsupportedException if one could not be
// located.
IHandler requestHandler = maker.lookup(function);
if (requestHandler == null)
throw new UnsupportedException("The request " +
"type is unknown: " +function);
// unmarshal the raw xml into an associated
// jUDDI request object.
RegistryObject uddiRequest = requestHandler.unmarshal(request);
// make the monitor inspect the UDDI request
// object
if (monitor != null)
monitor.inspectRegistryObject(uddiRequest);
// Determine if this message came from through
// the Publish, Inquiry or Admin API and handle
// it appropriately.
Object juddiServlet = messageContext.getProperty("transport.http.servlet");
// confirm that the the appropriate endpoint
// was used to invoke the selected jUDDI/UDDI
// function.
if((juddiServlet instanceof InquiryServlet) &&
(!(uddiRequest instanceof org.apache.juddi.datatype.request.Inquiry)))
{
throw new RegistryException("Inquiry API " +
"does not support function: "+function);
}
else if (juddiServlet instanceof PublishServlet &&
(!(uddiRequest instanceof org.apache.juddi.datatype.request.Publish) &&
!(uddiRequest instanceof org.apache.juddi.datatype.request.SecurityPolicy)))
{
throw new RegistryException("Publish API " +
"does not support function: "+function);
}
else if ((juddiServlet instanceof AdminServlet) && // Admin
(!(uddiRequest instanceof org.apache.juddi.datatype.request.Admin)))
{
throw new RegistryException("Admin API " +
"does not support function: "+function);
}
// grab a reference to the shared jUDDI registry
// instance (make sure it's running) and execute
// the requested UDDI function.
RegistryObject uddiResponse = null;
RegistryEngine registry = RegistryServlet.getRegistry();
if ((registry != null) && (registry.isAvailable()))
uddiResponse = registry.execute(uddiRequest);
else
throw new BusyException("The Registry is unavailable");
// create a new 'temp' XML element. This
// element is used as a container in which
// to marshal the UDDI response into.
Document document = XMLUtils.createDocument();
Element element = document.createElement("temp");
// lookup the appropriate response handler
// and marshal the juddi object into the
// appropriate xml format (we only support
// uddi v2.0 at this time) attaching results
// to the temporary 'temp' element.
IHandler responseHandler = maker.lookup(uddiResponse.getClass().getName());
responseHandler.marshal(uddiResponse,element);
// grab a reference to the 'temp' element's
// only child here (this has the effect of
// discarding the temp element) and appending
// this child to the soap response body.
response = (Element)element.getFirstChild();
}
catch(RegistryException rex)
{
log.error(rex.getMessage(),rex);
String fCode = rex.getFaultCode();
String fString = rex.getFaultString();
String fActor = rex.getFaultActor();
DispositionReport dispRpt = rex.getDispositionReport();
if (dispRpt != null)
{
dispRpt.setGeneric(generic);
dispRpt.setOperator(Config.getOperator());
}
if (monitor != null)
monitor.addMonitorFault(fString);
response = createFault(fCode,fString,fActor,dispRpt);
}
catch(AxisFault axf)
{
log.error(axf.getMessage(),axf);
String fCode = String.valueOf(axf.getFaultCode());
String fString = axf.getFaultString();
String fActor = axf.getFaultActor();
if (monitor != null)
monitor.addMonitorFault(fString);
response = createFault(fCode,fString,fActor,null);
}
catch(Exception ex)
{
log.error(ex.getMessage(),ex);
String fCode = null;
String fString = ex.getMessage();
String fActor = null;
if (monitor != null)
monitor.addMonitorFault(fString);
response = createFault(fCode,fString,fActor,null);
}
finally
{
// write the monitored information to the currently
// configured 'Monitor' implemneted registry (the
// default Monitor implementation writes the monitored
// information to a database table via JDBC).
if (monitor != null)
monitor.log();
}
try {
SOAPBodyElement soapRespBody = new SOAPBodyElement(response);
SOAPEnvelope soapRespEnv = soapResponse.getSOAPEnvelope();
soapRespEnv.addBodyElement(soapRespBody);
}
catch(AxisFault af) {
af.printStackTrace();
}
// write the SOAP response XML out to the log (on debug)
try { log.debug(soapResponse.getSOAPPartAsString()); }
catch(AxisFault af) {
af.printStackTrace();
}
}
private static Element createFault(String fCode,String fString,String fActor,DispositionReport dispRpt)
{
// create a new 'Fault' XML element.
Document document = XMLUtils.createDocument();
Element fault = document.createElement("Fault");
if (fCode != null)
{
Element fCodeElement = document.createElement("faultcode");
fCodeElement.appendChild(document.createTextNode(fCode));
fault.appendChild(fCodeElement);
}
if (fString == null)
fString = "";
Element fStringElement = document.createElement("faultstring");
fStringElement.appendChild(document.createTextNode(fString));
fault.appendChild(fStringElement);
if (fActor != null)
{
Element fActorElement = document.createElement("faultactor");
fActorElement.appendChild(document.createTextNode(fActor));
fault.appendChild(fActorElement);
}
// check for a DispositionReport in the exception and if one exists,
// grab it, marshal it into xml and stuff it into a SOAP fault
// detail element.
if (dispRpt != null)
{
Element fDetailElement = document.createElement("detail");
IHandler handler = maker.lookup(DispositionReportHandler.TAG_NAME);
handler.marshal(dispRpt,fDetailElement);
fault.appendChild(fDetailElement);
}
return fault;
}
}