public  void destroy() 
{

}

Clean up resources

 public  void doGet(HttpServletRequest request,
    HttpServletResponse response) throws IOException, ServletException 
{
        boolean varForceRefresh = false;
        int refreshPeriod = 0;
        int scope = PageContext.APPLICATION_SCOPE;
        String forceCacheUse = null;
        String key = null;
        // Cache item
        Long item;
        // Get the admin
        ServletCacheAdministrator admin = ServletCacheAdministrator.getInstance(getServletContext());
        // Translate parameters
        try {
            String paramValue = request.getParameter("forceRefresh");
            if ((paramValue != null) && (paramValue.length()  > 0)) {
                varForceRefresh = Boolean.valueOf(paramValue).booleanValue();
            }
            paramValue = request.getParameter("scope");
            if ((paramValue != null) && (paramValue.length()  > 0)) {
                scope = getScope(paramValue);
            }
            paramValue = request.getParameter("refreshPeriod");
            if ((paramValue != null) && (paramValue.length()  > 0)) {
                refreshPeriod = Integer.valueOf(paramValue).intValue();
            }
            forceCacheUse = request.getParameter("forcecacheuse");
            key = request.getParameter("key");
        } catch (Exception e) {
            getServletContext().log("Error while retrieving the servlet parameters: " + e.toString());
        }
        // Check if all the items should be flushed
        if (varForceRefresh) {
            admin.flushAll();
        }
        try {
            // Get the data from the cache
            item = (Long) admin.getFromCache(scope, request, key, refreshPeriod);
        } catch (NeedsRefreshException nre) {
            // Check if we want to force the use of an item already in cache
            if ("yes".equals(forceCacheUse)) {
                admin.cancelUpdate(scope, request, key);
                item = (Long) nre.getCacheContent();
            } else {
                item = new Long(System.currentTimeMillis());
                admin.putInCache(scope, request, key, item);
            }
        }
        // Generate the output
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        out.println("< html >");
        out.println("< head >< title >OscacheServlet< /title >< /head >");
        out.println("< body >");
        out.println("< b >This is some cache content < /b >: " + item.toString() + "< br >");
        out.println("< b >Cache key< /b >: " + admin.getCacheKey() + "< br >");
        out.println("< b >Entry key< /b >: " + admin.generateEntryKey("Test_key", request, scope) + "< br >");
        out.println("< /body >< /html >");
}

Process the HTTP Get request

 public  void init(ServletConfig config) throws ServletException 
{
        super.init(config);
}

Initialize global variables