[jboss-user] [EJB/JBoss] - stateless session bean is caching data ???

[tfulton]

Hi,

I've got a stateless session bean that appears to be indeed caching data between clients.  Its really bumming me out.  Can anyone at all see why?

Anyone?


Todd

CODE
-----------------------------------------------------------------
package com.bgi.kmdp.aqs.commands.simplefeed;

. . . . 
import org.apache.log4j.Logger;
import org.apache.xmlbeans.XmlObject;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.rmi.RemoteException;
import java.util.Vector;


/**
 * Created by IntelliJ IDEA.
 * User: fulttod
 * Date: May 11, 2006
 * Time: 1:39:23 PM
 * To change this template use File | Settings | File Templates.
 */
public class SimpleFeedBean
        extends BaseEJBSessionBean {

    private static Logger logger = Logger.getLogger(SimpleFeed.class);

    private Vector results = new Vector();

    /**
     * Implemented method from BaseCommand.
     *
     * @param args
     * @param commandConfig
     * @return int status
     * @throws RemoteException
     * @throws BaseException
     */
    public int execute(XmlObject args, CommandConfig commandConfig)
            throws RemoteException, BaseException {

        logger.info("BEGIN: SimpleFeedBean.execute");

        try {
            // get our args
            GetfeedRequest request = (GetfeedRequest) args;
            request.validate();
            String feedName = request.getFeedName();

            // get our feed configurations
            ServiceConfig svcConfig = ConfigLoader.getInstance().getServiceConfig();
            FeedConfig feedConfig = svcConfig.findFeedConfig(feedName);

            logger.info("FeedConfig acquired for feedname = '" + feedName + "'");
            logger.info("\tConfig name: " + feedConfig.getName());
            logger.info("\tConfig url: " + feedConfig.getUrl());
            logger.info("\tConfig file base: " + feedConfig.getFileBase());
            logger.info("\tConfig file extension: " + feedConfig.getFileExtension());

            // get our service adapter and process it
            RetrievalLogger rLogger = new RetrievalLogger(request, feedConfig);
            rLogger.start();  // start the logger

            BaseServiceAdapterFactory adapterFactory = new BaseServiceAdapterFactory();
            BaseServiceAdapter adapter = adapterFactory.getProtocolAdapter(new URL(feedConfig.getUrl()).getProtocol());
            adapter.process(request, feedConfig);
            String filePath = (String) adapter.getServiceResult();

            // DEBUG ONLY !!!
            logger.info("\tFilepath from Adapter: " + filePath);
            // DEBUG ONLY !!!

            // generate a url which an external system may use to access the file
            ArgumentConfig arg = commandConfig.findArgumentConfig("httpbase");
            String httpBase = arg.getValue();

            int index = filePath.lastIndexOf('/');
            String fileName = filePath.substring(index + 1);

            String strUrl = httpBase + fileName;
            URL url = new URL(strUrl);

            results.add(url);

            // DEBUG ONLY!!!
            logger.info("\tURL passed to rLogger: " + url.toString());
            logger.info("\tResults size: " + results.size());
            // DEBUG ONLY!!!

            rLogger.stop(new File(filePath), url); // stop the logger (which also catalogs the feed instance)
        }
        catch (MalformedURLException ue) {

            logger.error(ue);
            return BaseCommand.ERROR;
        }
        catch (BaseException e) {

            logger.error(e);
            return BaseCommand.ERROR;
        }

        logger.info("END: SimpleFeedBean.execute");
        return BaseCommand.SUCCESS;
    }

    /**
     * Implemented method from BaseCommand.
     *
     * @return An instance of AQSResult
     * @throws RemoteException
     */
    public Object getResults()
            throws RemoteException {

        return results;
    }

}

OUTPUT FROM CONSOLE (each line is different client/invocation -- see timestamp of log)
----------------------------------------------------------------
10:44:52,374 INFO  [SimpleFeed]         URL passed to rLogger: http://localhost:8080/aqs/20060713_1044_52kmdp_bb18_20060601.dat.EUR
10:44:52,374 INFO  [SimpleFeed]         Results size: 1
10:45:07,812 INFO  [SimpleFeed]         URL passed to rLogger: http://localhost:8080/aqs/20060713_1045_7kmdp_bb18_20060601.dat.EUR
10:45:07,812 INFO  [SimpleFeed]         Results size: 2
10:45:32,626 INFO  [SimpleFeed]         URL passed to rLogger: http://localhost:8080/aqs/20060713_1045_32kmdp_bb18_20060601.dat.EUR
10:45:32,626 INFO  [SimpleFeed]         Results size: 3

CONFIG SNIPPETS
------------------------------------------------------------------
EJB-JAR.XML		

	<display-name>SimpleFeedCommand Session Bean</display-name>
	<ejb-name>SimpleFeed</ejb-name>
com.bgi.kmdp.aqs.commands.simplefeed.SimpleFeedHome
com.bgi.kmdp.aqs.commands.simplefeed.SimpleFeed
<ejb-class>com.bgi.kmdp.aqs.commands.simplefeed.SimpleFeedBean</ejb-class>
	<session-type>Stateless</session-type>
	<transaction-type>Container</transaction-type>


JBOSS.XML
[nothing in this file for this bean]



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