Hi,
I don't understand all your issue, but about the message context null, there is
an easy way to get access to Servlet context of Axis2 :
In your AxisService class, in
init(ServiceContext sc){
ServletContext sc = (ServletContext)
sc.getConfigurationContext().getProperty("transport.http.servletContext");
}
Then, you should be able to store/read your thread in this context and stop it
if necessary.
Tony.
Subject: AW: [Axis2] - Migrating axis to axis2 and lost servletContext
Date: Thu, 9 Jun 2011 11:19:32 +0200
From: [email protected]
To: [email protected]
But in scope="soapsession" I have to define a time-out to get
long-lasting-sessions and a state-full-object. If the time-out hits before the
next request is made by the session-thread, my service-object
(instance-of-the-service-class) (addressed by the servicegroupId), does no
longer exists. And as we have our time-out set to about 8hours, real long
lasting sessions, the time-out is only hit after 8h. Hence the destroy() method
called when the same service-class gets a request then triggers only the
destroy-method after 8h, when the service-object timed-out for
this-service-object is occurred. We do normally not see the destroy() method
being called. This time-out is a very annoying issue in fact! If we would be
able to set this time-out programmatically by something like a
prepare-to-stop-call(), to let's say 5 seconds, then we could observe how our
destroy() method gets called. So initiating threads in the init() method is OK.
Keeping threads for a long time is a different issue in scope="soapsession",
and the time-out-facility makes the thing not better. Or does somebody know a
way how I can call to destruct my service-providing-object, and prove that the
destroy() method is then called? Josef Von: Deepal Jayasinghe
[mailto:[email protected]]
Gesendet: Mittwoch, 8. Juni 2011 01:23
An: [email protected]
Betreff: Re: [Axis2] - Migrating axis to axis2 and lost servletContext In Axis2
it has four different type of sessions and transport session is one of them.
So, you have access to the serveltContext only if you use the transport session.
You can deploy the service in any scope and create the threads inside the init
method and write the code to stop them inside the destroy method. When the
session complete, Axis2 automatically calls the destroy method and invoke your
code. One thing you need to keep in mind is the number of services instances,
in Axis2 for each new session it creates a new service impl class. And also use
the following reference:
http://www.developer.com/db/article.php/3735771/Exposing-a-Database-as-a-Web-Service.htm
http://blogs.deepal.org/2009/06/axis2-tutorials-and-articles.html
Deepal
On 6/7/2011 6:11 PM, April Easton wrote: Good day, I have almost
successfully converted our axis service to an axis2 service. It all works,
except stopping the threads that are created by this service. With axis, we
used the ServletContextListener destroy method to access the
ServletContext.getAttribute(“AxisServiceInstance”) that was written in
AxisService and then call the stopThread() method. I have been having great
difficulties in converting this small piece of the project. I have tried to
get the MessageContext in AxisService and write the
ServletContext.setAttribute(“AxisServiceInstance”). The MessageContext is
always null. I have placed this Listener in axis2/WEB-INF/lib. The posts that
I’ve been reading make this look so easy. What am I overlooking? Here is a
snapshot of my code. public class AxisListener implements
ServletContextListener { public void
contextInitialized(ServletContextEvent event){
System.out.println(this.getClass().getName() + ":contextInitialized:context is
" + event.getServletContext().getRealPath("")); }//contextInitialized()
public void contextDestroyed(ServletContextEvent event) {
System.out.println(this.getClass().getName() + ":contextDestroyed:before
destroyThread."); AxisService axisService =
(AxisService) event.getServletContext().getAttribute("AxisServiceInstance");
axisService.stopThread(); }//contextDestroyed() }
//ServletContextListener public class AxisService {
public AxisService() { this.init(); }//Constructor
private void init(){ . . .
//This is the best that I’ve found using the posts to date: //set
Attributes to be used by AxisListener#contextDestroyed(ServletContextEvent
event)MessageContext msgContext = MessageContext.getCurrentMessageContext();
log.debug(this.getClass().getName() + ":init:messageContext:" +
msgContext); //This is Always null
//((ServletContext)msgContext.getProperty(HTTPConstants.MC_HTTP_SERVLETCONTEXT)).setAttribute("AxisServiceInstance",
axisService); //Here is what it was: //set Attributes
to be used by AxisListener#contextDestroyed(ServletContextEvent event)
MessageContext msgContext= MessageContext.getCurrentContext();
(((HttpServlet)msgContext.getProperty(HTTPConstants.MC_HTTP_SERVLET)).getServletContext()).setAttribute("AxisServiceInstance",axisService);
}//init() Thank you,April
