perfsonar development work

Author: rodriguez
Date: 2007-03-21 05:09:40 -0400 (Wed, 21 Mar 2007)
New Revision: 2260

Modified:
   branches/as/src/org/perfsonar/service/web/RequestHandler.java
Log:
It has the capacity to get soap headers

Modified: branches/as/src/org/perfsonar/service/web/RequestHandler.java
===================================================================
--- branches/as/src/org/perfsonar/service/web/RequestHandler.java       
2007-03-20 13:49:04 UTC (rev 2259)
+++ branches/as/src/org/perfsonar/service/web/RequestHandler.java       
2007-03-21 09:09:40 UTC (rev 2260)
@@ -7,6 +7,8 @@
 
 package org.perfsonar.service.web;
 
+import org.apache.axis.message.SOAPBodyElement;
+import org.apache.axis.message.SOAPEnvelope;
 import org.ggf.ns.nmwg.base.v2_0.Message;
 import org.perfsonar.commons.auxiliary.AuxiliaryComponentManager;
 import org.perfsonar.commons.auxiliary.ComponentNames;
@@ -20,214 +22,201 @@
 import org.perfsonar.service.commons.util.ResultCodesUtil;
 import org.w3c.dom.Document;
 
-
 /**
  * Class which handles web service requests.
- *
+ * 
  * @author Loukik
  * @author Maciej Glowiak
  */
 
 public class RequestHandler {
 
+       // ----------------------------------------------------- constants
 
+       private static final String INIT_SERVICE_MESSAGE_TYPE = "InitService";
 
-    // ----------------------------------------------------- constants
+       private static final String SAX_PARSER_CONFIG = 
"service.sax_parser.config";
 
+       // -------------------------------------------- instance variables
 
+       private ConfigurationComponent configuration = null;
 
-    private static final String INIT_SERVICE_MESSAGE_TYPE = "InitService";
+       private LoggerComponent logger = null;
 
+       // ---------------------------------- public methods
 
-    private static final String SAX_PARSER_CONFIG = 
"service.sax_parser.config";
+       public void acceptCall(SOAPEnvelope req, SOAPEnvelope resp) {
+               /*
+                * 
+                * The first invocation of 
AuxiliaryComponentManager.getInstance()
+                * creates the static instance of AuxiliaryComponentManager.
+                * 
+                */
 
+               try {
 
+                       configuration = (ConfigurationComponent) 
AuxiliaryComponentManager
+                                       
.getInstance().getComponent(ComponentNames.CONFIG);
 
-    // -------------------------------------------- instance variables
+                       if (configuration == null)
+                               throw new 
PerfSONARException("error.common.no_configuration",
+                                               "Cannot read configuration 
file");
 
+                       // get logger component
 
+                       logger = (LoggerComponent) 
AuxiliaryComponentManager.getInstance()
+                                       .getComponent(ComponentNames.LOGGER);
 
-    private ConfigurationComponent configuration = null;
+                       if (logger == null)
+                               throw new 
PerfSONARException("error.common.no_logger",
+                                               "Cannot find logger 
component");
 
-    private LoggerComponent logger = null;
+                       logger.info("RequestHandler: Service received a 
request");
+                       logger.debug("RequestHandler: "
+                                       + "Calling on parser to parse the 
request");
+                       logger
+                                       .debug("void acceptCall(SOAPEnvelope 
req, SOAPEnvelope resp)");
+                       
+                       SOAPBodyElement body = req.getFirstBody();
+                       Document reqDoc = body.getAsDocument();
+                       Document respDoc = acceptCall(reqDoc);
+                       resp.getBody().addDocument(respDoc);
+               } catch (Exception e) {
+                       e.printStackTrace();
+               }
+       }
 
+       // ---------------------------------- private methods
 
+       /**
+        * Accepts web service based calls and gives back responses
+        * 
+        * @param request
+        *            org.w3c.dom.Document which contains the XML request
+        * 
+        * @return org.w3c.dom.Document response provided by the service
+        * 
+        * @throws Exception
+        *             If any fatal error occurred (but almost all errors are 
being
+        *             catched and converted to PerfSONAR result codes
+        */
+       private Document acceptCall(Document request) {
 
-    // ---------------------------------- public methods
+               try {
+                       // convert input Document into Message - 
requestMessage
 
+                       Message requestMessage = null;
+                       try {
 
+                               requestMessage = 
XMLUtils.convertToMessage(request,
+                                               
configuration.getProperty(SAX_PARSER_CONFIG));
 
-    /**
-     *  Accepts web service based calls and gives back responses
-     *
-     *  @param request org.w3c.dom.Document which contains the XML request
-     *
-     *  @return org.w3c.dom.Document response provided by the service
-     *
-     *  @throws Exception If any fatal error occurred (but almost all errors
-     *          are being catched and converted to PerfSONAR result codes 
-     */
-    public Document acceptCall(Document request) {
+                       } catch (Exception e) {
 
-        /*
-         * 
-         * The first invocation of AuxiliaryComponentManager.getInstance()
-         * creates the static instance of AuxiliaryComponentManager.
-         * 
-         */
+                               throw new 
PerfSONARException("error.common.parse_error",
+                                               "Parse/validation error, "
+                                                               + "Cannot 
convert request to Message. "
+                                                               + "Nested 
error messsage was " + e.getMessage());
 
-        try {
+                       }
 
-            //get configuration component (and create Aux Comp Manager
+                       // if parsed well
 
-            configuration = 
(ConfigurationComponent)AuxiliaryComponentManager.
-                getInstance().getComponent(ComponentNames.CONFIG);
+                       if (requestMessage != null) {
 
-            if (configuration == null) throw new PerfSONARException(
-                    "error.common.no_configuration",
-                    "Cannot read configuration file");
+                               logger.debug("RequestHandler: "
+                                               + "Message object constructed 
from request. "
+                                               + "Request is of type: " + 
requestMessage.getType());
 
-            //get logger component
+                               // Check if it is not InitService message only
+                               if 
(INIT_SERVICE_MESSAGE_TYPE.equalsIgnoreCase(requestMessage
+                                               .getType())) {
 
-            logger = (LoggerComponent)AuxiliaryComponentManager.
-                getInstance().getComponent(ComponentNames.LOGGER);           
 
+                                       // if so, response that service was 
set up correctly
+                                       throw new 
PerfSONARException("service.common.success",
+                                                       "Service initialized 
correctly");
 
-            if (logger == null) throw new PerfSONARException(
-                    "error.common.no_logger",
-                    "Cannot find logger component");
+                               }
 
-            logger.info("RequestHandler: Service received a request");
-            logger.debug("RequestHandler: " +
-                    "Calling on parser to parse the request");
+                               // Call on the MessageHandlerFactory to get 
the appropriate
+                               // message handler for this type of message.
 
-            //convert input Document into Message - requestMessage
+                               MessageHandler messageHandler = 
MessageHandlerFactory
+                                               
.getMessageHandler(requestMessage.getType());
 
-            Message requestMessage = null;
-            try {
+                               // Call on the mh to "execute" the message 
and return
+                               // a response message.
+                               logger.debug("RequestHandler: " + "Calling on 
MessageHandler ["
+                                               + messageHandler.getClass() + 
"] to satisfy request");
 
-                requestMessage = XMLUtils.convertToMessage(
-                        request, 
-                        configuration.getProperty(SAX_PARSER_CONFIG));
+                               // run proper message handler,
+                               // which will run ServiceEngine
+                               // 
*****************************************************
 
-            } catch (Exception e) {
-                
-                throw new PerfSONARException("error.common.parse_error", 
-                        "Parse/validation error, " +
-                        "Cannot convert request to Message. " +
-                        "Nested error messsage was "+e.getMessage());
+                               Message responseMessage = messageHandler
+                                               .execute(requestMessage);
 
-            }
+                               // 
*****************************************************
 
-            //if parsed well
+                               // convert response Message into Document
+                               Document responseDocument = XMLUtils
+                                               
.convertMessageToDOM(responseMessage);
 
-            if (requestMessage!=null) {
+                               // if everything went fine, return response 
document to Axis
 
-                logger.debug("RequestHandler: " +
-                        "Message object constructed from request. " +
-                        "Request is of type: " + 
-                        requestMessage.getType());
+                               logger
+                                               .info("RequestHandler: 
Service sent a successful response");
 
-                /*
-                 * Check if it is not InitService message only
-                 */
-                if (INIT_SERVICE_MESSAGE_TYPE.
-                        equalsIgnoreCase(requestMessage.getType())) {
+                               return responseDocument;
 
-                    //if so, response that service was set up correctly
-                    throw new PerfSONARException("service.common.success",
-                            "Service initialized correctly");
-                    
-                }
-                
-                
-                // Call on the MessageHandlerFactory to get the appropriate
-                // message handler for this type of message.
+                       } else {
 
-                MessageHandler messageHandler = 
-                    MessageHandlerFactory.getMessageHandler(
-                            requestMessage.getType());
+                               // if anything went wrong with parsing, throw 
exception
+                               logger.error("RequestHandler: "
+                                               + "Message object constructed 
as null from request");
 
-                // Call on the mh to "execute" the message and return
-                // a response message.
-                logger.debug(
-                    "RequestHandler: " +
-                    "Calling on MessageHandler ["+
-                    messageHandler.getClass()+"] to satisfy request");
+                               throw new SystemException(
+                                               "error.common.parse_error",
+                                               "RequestHandler: "
+                                                               + "Server 
could not construct a message object "
+                                                               + "from the 
request due to unknown error. "
+                                                               + "Please 
check request and try again");
+                       }
 
+               } catch (PerfSONARException pex) {
 
-                //run proper message handler, 
-                //which will run ServiceEngine
-                //*****************************************************
+                       /*
+                        * If any error occured response with result/error 
code
+                        */
 
-                Message responseMessage = messageHandler.execute(
-                        requestMessage);
+                       // create common result code
+                       Message responseMessage = 
ResultCodesUtil.createResultCodeMetadata(
+                                       null, pex);
 
-                //*****************************************************
+                       // convert it into Document
+                       Document responseDocument = null;
+                       try {
 
-                // convert response Message into Document
-                Document responseDocument = XMLUtils.
-                    convertMessageToDOM( responseMessage );
+                               responseDocument = XMLUtils
+                                               
.convertMessageToDOM(responseMessage);
 
-                //if everything went fine, return response document to Axis
+                       } catch (PerfSONARException e) {
 
-                logger.info("RequestHandler: Service sent a successful 
response");
+                               // or send null if impossible
 
-                return responseDocument;
+                               logger.fatal("RequestHandler: "
+                                               + "Return null response - 
neither can create "
+                                               + "response message nor error 
code message!");
 
+                       }
 
-            } else {
+                       logger.info("RequestHandler: Service sent a response "
+                                       + "with error information");
 
-                //if anything went wrong with parsing, throw exception 
-                logger.error("RequestHandler: " +
-                        "Message object constructed as null from request");
-                
-                throw new SystemException("error.common.parse_error", 
-                        "RequestHandler: " +
-                        "Server could not construct a message object " +
-                        "from the request due to unknown error. " +
-                        "Please check request and try again");
-            }
-            
-            
-        } catch (PerfSONARException pex) {           
+                       return responseDocument;
 
-            /*
-             * If any error occured
-             * response with result/error code
-             */
+               }
 
-            //create common result code
+       }
 
-            Message responseMessage = 
-                ResultCodesUtil.createResultCodeMetadata(
-                        null,
-                        pex);
-
-            //convert it into Document
-            Document responseDocument = null;
-            try {
-
-                responseDocument = XMLUtils.convertMessageToDOM(
-                        responseMessage);
-
-            } catch (PerfSONARException e) {
-
-                //or send null if impossible
-
-                logger.fatal("RequestHandler: " +
-                        "Return null response - neither can create " +
-                        "response message nor error code message!");
-
-            }
-
-            logger.info("RequestHandler: Service sent a response "
-                       + "with error information");
-
-            return responseDocument;
-
-        }
-
-    }
-
-    
-} //RequestHandler
+} // RequestHandler