Hi,
I am trying to maintain session between two calls on an Axis service. It is
required that the second call should throw an error if the user does not
have a session, i.e. first call is not made.
I tried to use the SimpleSessionHandler shipped with Axis by using the
following xml in the deploy.wsdd file.
<service name="MyService" provider="java:RPC">
<requestFlow>
<handler type="session" />
</requestFlow>
<responseFlow>
<handler type="session" />
</responseFlow>
...
</service>
The problem with this approach is that the SimpleSessionHandler creates a
new session if none exists and does not give an error. So I wrote another
handler SessionValidationHandler derived from SimpleSessionHandler. This
handler takes a parameter "validate" and if this parameter is set to true by
using
<handler name="sessionValidation"
type="java:mypackage.SessionValidationHandler">
<parameter name="SessionHandler.validate" value="true" />
</handler>
But I cannot set this handler for the entire service since the first call
needs to create a new session if none exists. Is there a way in axis to
deploy different handlers for different calls on the web service ?
I did not know of any such way. So I created two services, one containing
the first method and the another containing the second method. I used the
SessionValidationHandler for the first service with no validation and
SessionValidationHandler for the second service with validation set to true.
This gives a problem because Axis creates two instances of the handlers and
the validating instance of the handler does not contain the sessions set by
the non-validating instance.
So I used a static hashtable to store the activeSessions. This does the job
but does not seem like a good solution. Is there a better way to do it ?
If anyone has encountered the need for using validation for sessions, I can
also post the code.
Thanks and regards,
Abhinav
