illegal state exception

my filter file ...i never used anything as we discussed above

package filters;

import java.io.IOException;

import java.util.HashSet;

import java.util.StringTokenizer;

import javax.servlet.Filter;

import javax.servlet.FilterChain;

import javax.servlet.FilterConfig;

import javax.servlet.RequestDispatcher;

import javax.servlet.ServletException;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

import javax.servlet.http.HttpServletRequest;

//import org.apache.log4j.Logger;

/**

* Mantis issue 1762 : To implement the warning before logging out functionality.

* @author psbabu

*/

public class ActionByTimeFilter implements Filter {

private final static String DEFAULT_SCRIPT_URL = "/jscript/throwpopup.js";

private final static String DELIMITER_CHAR = ",";

//private final static Logger log = Logger.getLogger(ActionByTimeFilter.class);

private FilterConfig config;

private String scriptUrl;

private HashSet exclusivePages;

/**

* @param DEFAULT_SCRIPT_URL

* @param DELIMITER_CHAR

* @param log

* @param config

* @param scriptUrl

* @param exclusivePages

*/

public void init(FilterConfig config) throws ServletException {

//log.info("Entering a method");

this.config = config;

String scriptUrl = this.config.getInitParameter("checktimer-script-url");

//log.assertLog((scriptUrl!=null), "String scriptUrl = null");

this.scriptUrl = (scriptUrl != null) ? scriptUrl : DEFAULT_SCRIPT_URL;

/**

* @param exclusiveListPages specifies the param value of "exclusive-pages-of-checkingtimer"

*/

///String exclusiveListPages = this.config.getInitParameter("exclusive-pages-of-checkingtimer");

//log.assertLog((exclusiveListPages!=null), "String exclusiveListPages = null");

//if (exclusiveListPages != null && exclusiveListPages.length() > 0) {

//this.exclusivePages = populateExclusivePages(exclusiveListPages);

//}

//log.debug("Initialize parameters in web.xml: checktimer-script-url = " + scriptUrl

//+ "; exclusive-pages-of-checkingtimer.size = " + exclusivePages);

/*if (log.isInfoEnabled()) {

log.info("Setting initialize parameters: checktimer-script-url = " + this.scriptUrl

+ "; exclusive-pages-of-checkingtimer.size = " + this.exclusivePages.size());

log.info("Exiting the method");

} */

}

public void doFilter(ServletRequest req, ServletResponse res,

FilterChain chain) throws IOException, ServletException {

HttpServletRequest httpReq = null;

if (req instanceof HttpServletRequest) {

httpReq = (HttpServletRequest) req;

String status = (String) httpReq.getAttribute("checktimerStatus");

RequestDispatcher rd = httpReq.getRequestDispatcher(scriptUrl);

rd.include(req, res);

httpReq.setAttribute("checktimerStatus", "inserted");

//log.debug("The script throwpopup.js "

//+ (String) req.getAttribute("servletname"));

} else {

//log.warn("The check timer filter is runnig out of servlet context");

}

chain.doFilter(req, res);

}

public void destroy() {

this.config = null;

this.exclusivePages = null;

}

/*private HashSet populateExclusivePages(String exclusiveListPages) {

HashSet exclusiveSet = null;

if (exclusiveListPages != null && exclusiveListPages.length() > 0) {

exclusiveSet = new HashSet();

//log.assertLog((exclusiveSet!=null), "HashSet exclusiveSet = null");

StringTokenizer tokenizer = new StringTokenizer(exclusiveListPages.trim(), DELIMITER_CHAR);

//log.assertLog((tokenizer!=null), "StringTokenizer tokenizer = null");

while (tokenizer.hasMoreTokens()) {

exclusiveSet.add(tokenizer.nextToken());

}

}

return exclusiveSet;

}*/

}

bobza at 2007-7-14 17:43:42 >