Hi Thierry!
Check out the SimpleSessionTest in test/session. That demonstrates using the SimpleSessionHandler to acheive session dynamics with SOAP headers. Axis is already all set up to let you use sessions in two ways. First, by specifying the scope="session" parameter on your service deployment, you can automatically get a new target object for each client (the addressbook example does this to keep a separate address database per user). Second, you can access an org.apache.axis.session.Session object by using MessageContext.getSession(), and then use that to store custom user data with set() and get(). If you want to do this from your target object, you can get access to the current MessageContext with the static method MessageContext.getCurrentContext(). So implementing your "B" type services is actually pretty easy in Axis, you just need to know what to look for. We support both sessions and authentication, and you are welcome to combine them in any way you choose, or write new Handlers which implement other patterns (and contribute them back to Axis, one hopes! :)). Hope this helps, --Glen > -----Original Message----- > From: Thierry Dupont [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, February 19, 2002 7:12 AM > To: [EMAIL PROTECTED] > Subject: RE: How to write a web service which updates the servlet > session object ? > > > OK, I undestand that Axis can manage sessions and pass > the ID in SOAP headers. > > But I don't see from a programmer point of view how I > can read / write from/to the session. > > None of the provided examples saves any user > information in the session object. I don't see how > they could easily do it, cause Axis does not pass to > the service any session or message handler. > > My idea is to have 2 kinds of services : > > A - User independant services, which do not need to > read/write in any session object. For example (stock > quotation consultation) > > B - User dependant service, here are examples of 2 > services which require user session management : > 1 - an application level authentification service, > which stores user information (first name, last name, > bank account number, specific rights) in a session > object > 2 - an bank statement consultation service which > gets the bank account number from the user session > object > > 'A' types services are easy to implement with Axis. > My feeling for 'B' type services is that it is not > trivial with Axis. > > I have the feeling that there is some Axis extensions > to developp, like extendedRPCprovider or > extendedJavaProvider with session management > capabilities. > > We could imagine that services which want to use the > Session object are required to implement a > SessionAccess interface (setSession, getSession). The > generic extendedRPCProvider or extendedJavaProvider > would successively invoke the setSession method, then > the service methode requested by the client. > > I guess there are much nicer solutions from a > conceptual point of view. > > I don't know if I am being clear. > > Apart from getting an answer to this problem, I would > like to kown if anybody has the same need ? or has > another way seeing things. > > Thanks in advance, > > Thierry. > > > > > --- "Adam.Leggett" <[EMAIL PROTECTED]> wrote: > > You can always use the SOAP Header to maintain > > state. Check out > > org.apache.axis.handlers.SimpleSessionHandler > > > > Cheers > > > > Adam > > > > -----Original Message----- > > From: Thierry Dupont [mailto:[EMAIL PROTECTED]] > > Sent: Monday, February 18, 2002 8:34 PM > > To: [EMAIL PROTECTED] > > Subject: How to write a web service which updates > > the servlet session object > > ? > > > > > > Hello, > > > > I find Axis very interesting. > > Amazing how easy it is to publish a web service, > > especially stateless service, like getting stock > > quotation as show in the example. > > > > However, I think that web applications very often > > have > > to handle user session information. > > > > Axis can run on top of a servlet engine, and most > > servlet engines handle efficently sessions objects > > (fetch, expiration) > > > > My question is : how can write an Axis web service > > which can update the servlet session object ? > > > > Does anybody have a sample source code ? > > > > Thanks in advance, > > > > Thierry. > > > > > > > > __________________________________________________ > > Do You Yahoo!? > > Yahoo! Sports - Coverage of the 2002 Olympic Games > http://sports.yahoo.com > > > __________________________________________________ > Do You Yahoo!? > Yahoo! Sports - Coverage of the 2002 Olympic Games > http://sports.yahoo.com >
