Use of session's varibles in BIRT

cheli

hi everyone,<br />
<br />
I have one small site web in PHP that allow users authenticate and give them access to the reports. I want to increase the security and for that i create a key in the site web that it's unique for any user and i put it in a cookie for it is possible to access it in BIRT. <br />
<br />
In the BIRT's report i have this code in the beforeFactory script: <br />
<br />
importPackage( Packages.javax.servlet.http );<br />
<br />
var request = reportContext.getHttpServletRequest();<br />
var cookies = request.getCookies();<br />
var cookiestring="";<br />
var tm = new Date();<br />
hour = tm.getUTCHours().toString();<br />
prev_hour = (tm.getUTCHours()-1).toString();<br />
<br />
//if the hour is one digit, we need to add a leading 0 because this is also used in PHP<br />
if (hour.length==1) {hour='0'+hour};<br />
if (prev_hour.length==1) {prev_hour='0'+prev_hour};<br />
<br />
<br />
//search for the correct cookie, being OUR_REPORT<br />
for (i=0; i< cookies.length; i++)<br />
{<br />
if(cookies.getName().equals("OUR_REPORT")){<br />
cookiestring=cookies.getValue();<br />
}<br />
}<br />
<br />
//read the url values<br />
var request = reportContext.getHttpServletRequest();<br />
user=request.getParameter("user");<br />
repname=request.getParameter("__report");<br />
urlstring=(String)(repname+user+hour);<br />
prev_urlstring=(String)(repname+user+prev_hour);<br />
<br />
<br />
//set the flag to allow the report components to hide if flag=1 (= no access)<br />
if (cookiestring!=urlstring)<br />
{<br />
if (cookiestring!=prev_urlstring) {flag=1;}<br />
reportContext.setGlobalVariable('access_flag', flag);<br />
}<br />
<br />
this script compare the key that i put in the site web with the same key but in this moment it is generated in the BIRT's script, if they are differents on put the global variable flag = 1. Here is my problem. I don't know how to use the globla variables. In this case i generated access_flag variable in the data explorer variables and the variable flag in the initialize script and then i use the access flag variables for the visibility conditions of the report's elements.<br />
This don't go , what is the problem?<br />
<br />
PD: sorry about my english, i'm not so good in English

averma

Hi cheli,
I would recommend using reportContext.setPersistentGlobalVariable() and reportContext.getPersistentGlobalVariable() methods. This allows variables to be persisted across generation and presentation (rendering).

Ashwini