Hi,
i have a servlet as a front component in my webapp; the servlet has also the
task of loading objects from a db during his inizialization. Loading the
objects takes some time & i have encountered a situation wich i didn't
expected & wich i'm not sure if i'm doing something wrong or it is orion.
The situation is that if orion recive a request wich point to the servlet
before the servlet has finished the init() method (wich was triggered from a
previous request) it creates another instance of the servlet.
I have done a small example so that i can explain me in a more clear way :
in my web.xml file i have defined & mapped the servlet:
<servlet>
<servlet-name>testServlet</servlet-name>
<servlet-class>TestServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>testServlet</servlet-name>
<url-pattern>/test</url-pattern>
</servlet-mapping>
the code of the servlet is:
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class TestServlet extends HttpServlet {
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
doGet(req, res);
}
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
System.out.println("doGet()");
}
public void init() {
System.out.println("init() " +this);
try {
Thread.currentThread().sleep(5000); // this is for simulating
the time consuming task
} catch (Exception e) {}
System.out.println("done! " + this);
}
}
now, if I start the server & i call the servlet 2 times (the second before
init() finish) i can see 2 servlet instance created (see the output below)
D:\orion>java -jar d:/orion/orion.jar
Orion/1.4.5 initialized
init() TestServlet@704baa
init() TestServlet@34fad5
done! TestServlet@704baa
doGet()
done! TestServlet@34fad5
doGet()
wich is not really what i want(& expected). I haven't watched the specs so
i'm not sure if this is the correct behavior in a situation like that & i
would like to know what u people think about it.
If someone has also a workaround it will be very much appreciated.. ;)
I'm running orion on w2k (i tried 1.4.5 & 1.4.4, same behaviour for both).
Marco
--
Ing. Marco Isella, Software Engineer
TINET SA, Via Violino 1, CH-6928 Manno-Lugano
tel. +41 91 612 22 22, fax. +41 91 612 22 23
email [EMAIL PROTECTED]
http://www.tinet.com
