Hello,
I'm having an application which uses cometd, so I have a separate CometdServlet for this. In order to use the wicket session in the CometdServlet I also have a WicketSessionFilter:
<filter>
<filter-name>wicket.carparts</filter-name>
<filter-class>org.apache.wicket.protocol.http.WicketFilter</filter-class>
<init-param>
<param-name>applicationClassName</param-name>
<param-value>com.carparts.frontend.wicket.application.WicketApplication</param-value>
</init-param>
<init-param>
<param-name>configuration</param-name>
<param-value>development</param-value>
</init-param>
<init-param>
<param-name>ignorePaths</param-name>
<param-value>cometd</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>wicket.carparts</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>ERROR</dispatcher>
</filter-mapping>
<error-page>
<error-code>404</error-code>
<location>/404</location>
</error-page>
<filter>
<filter-name>WicketSessionFilter</filter-name>
<filter-class>org.apache.wicket.protocol.http.servlet.WicketSessionFilter</filter-class>
<init-param>
<param-name>filterName</param-name>
<param-value>wicket.carparts</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>WicketSessionFilter</filter-name>
<url-pattern>/cometd/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>cometd</servlet-name>
<servlet-class>org.cometd.server.CometdServlet</servlet-class>
......
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>cometd</servlet-name>
<url-pattern>/cometd/*</url-pattern>
</servlet-mapping>
Before adding ignorePaths everything was working fine (CometdServlet had access to the wicket session), however I noticed the following: every time when cometd makes a request to the server a new wicket session is created (and in my case an automatic login is performed, so creating a session is not very "cheap" operation). Because of this I added the ignorePaths parameter for WicketFilter, so no session is created. But after this the CometdServlet doesn't have access to the wicket session anymore:
java.lang.IllegalArgumentException: Argument 'requestCycle' may not be null.
at org.apache.wicket.util.lang.Args.notNull(Args.java:39)
at org.apache.wicket.Application.fetchCreateAndSetSession(Application.java:1487)
at org.apache.wicket.Session.get(Session.java:159)
at com.carparts.frontend.comet.NotificationServlet$1.canSubscribeForNotifications(NotificationServlet.java:70)
at com.carparts.chat.server.ChatService$2.canSubscribe(ChatService.java:158)
at com.carparts.chat.server.SecurityPolicySet.canSubscribe(SecurityPolicySet.java:62)
at org.cometd.server.BayeuxServerImpl.isSubscribeAuthorized(BayeuxServerImpl.java:624)
at org.cometd.server.BayeuxServerImpl.access$1000(BayeuxServerImpl.java:55)
at org.cometd.server.BayeuxServerImpl$SubscribeHandler.onMessage(BayeuxServerImpl.java:1152)
at org.cometd.server.BayeuxServerImpl.doPublish(BayeuxServerImpl.java:784)
at org.cometd.server.BayeuxServerImpl.handle(BayeuxServerImpl.java:572)
at org.cometd.server.transport.LongPollingTransport.handle(LongPollingTransport.java:212)
at org.cometd.server.CometdServlet.service(CometdServlet.java:152)
at org.cometd.server.CometdServlet.service(CometdServlet.java:121)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:534)
Is it possible to keep the ignorePaths parameter and still keep the session accessible from CometdServlet? If not, is it possible not to create a new session on every cometd request (may be I have some configuration errors)? Thanks in advance.
Locked
