Client Listener on subview
Hi All,
I have one .jspx page which has <af:document> tag and client Listener , Server Listener on page load action and inside the page i am calling the Page Fragments through <f:subview> tag ,the fragments has <f:form > tag.
If the fragments has html code inside it , it is giving me the error "the connection to the server has failed:403". My question is where i need to put the Java script , Client Listener and server Listener whether i need to put in page fragments or in .jspx page.
I am using Jdev 11.1.2.2.0
Thanks in Advance,
Suganya.
Hi Don Kleppinger ,
Thanks for your reply i tried what you suggested , the main page.jspx look like this
<af:clientListener method="loadpage" type="load"/>
<f:facet name="metaContainer">
<af:resource type="javascript" source="resources/js/pageLoad.js">
</af:resource>
</f:facet>
<af:serverListener type="loadpage_action" method="#{viewScope.login.loadpage_action}"/>
But still i am receiving the error."A connection to the srever has failed (status:403)
<RegistrationConfigurator> <handleError> ADF_FACES-60096:Server Exception during PPR, #2
java.lang.NullPointerException
at oracle.adfinternal.view.faces.webapp.rich.RichWindowManager.getRedirectCookieForPartialRequest(RichWindowManager.java:1222)
at oracle.adfinternal.view.faces.config.rich.RegistrationConfigurator.__writeRedirectExtension(RegistrationConfigurator.java:547)
at oracle.adfinternal.view.faces.config.rich.RegistrationConfigurator.__sendRedirect(RegistrationConfigurator.java:526)
at oracle.adfinternal.view.faces.config.rich.XmlHttpServletResponse.sendRedirect(XmlHttpServletResponse.java:56)
at oracle.adf.share.http.ServletEnvironment.redirect(ServletEnvironment.java:158)
at oracle.adf.share.security.authentication.JEEAuthenticationService.login(JEEAuthenticationService.java:79)
at oracle.adf.share.security.providers.jps.JpsAuthenticationService.login(JpsAuthenticationService.java:67)
at oracle.adf.model.BindingRequestHandler.beginRequest(BindingRequestHandler.java:282)
at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:171)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:125)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)
at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:293)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:199)
at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:180)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:524)
at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:253)
at weblogic.servlet.internal.ForwardAction.run(ForwardAction.java:22)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.security.internal.FormSecurityModule.sendError(FormSecurityModule.java:395)
at weblogic.servlet.security.internal.FormSecurityModule.processJSecurityCheck(FormSecurityModule.java:262)
at weblogic.servlet.security.internal.FormSecurityModule.checkUserPerm(FormSecurityModule.java:213)
at weblogic.servlet.security.internal.FormSecurityModule.checkAccess(FormSecurityModule.java:96)
at weblogic.servlet.security.internal.ServletSecurityManager.checkAccess(ServletSecurityManager.java:82)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2213)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Thanks,
Suganya.
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///ifgetBoolen= true then...
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Ola,
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The server has two serversockets running.
The client connects at the first one, which it will use
for sending (any messages) and receiving a reply from the
server ( an "ok" confirmation or so) .
The client then connects at the second serversocket,
which it uses for listening to the server.
The second socket then also can be used for "alive" calls
from the server periodically ( to kick out users, who
have lost connection silently)
Also the second socket, of course, is used as broadcast channel.
Broadcasted messages can contain chat messages, information
about a user, which has logged in or out ..
When the server receives a (chat)message from a client, it
first enters that message in its model and then broadcasts
this message ( or more generally the changes in its model)
to all clients including the client, who has
sent the message, which only displays the message, when he
has received it back from the server.
This way, the order of messages displayed is the same for
all clients - its a sort of synchronization process.
Also, you don't need different ports ( for anything in principle ).
Port 80 is enough.
For multiple connections, you can send an integer as first
data transfer, which acts as "virtual portnumber" and the
receiver then can forward the socket to the associated threads.
One thing to note for the broadcast process is, that you
can't simply broadcast the messages in a loop, because this
way, one veeery slow client would slow down the whole
server. Therefore you will have to use threads for that.
In the old (jdk1.3) way, the server would create a thread
for each user who connects at the first serversocket,
pass the socket (which it gets from the accept() method )
to that thread, and this thread then would block while
trying to receive, and after it had received something,
it would call a synchronized method from the server,
in which the server datamodel would be updated and
broadcasts would be started ( in an other thread context ).
A good way to speed up chat systems with heavy load is
to use MultiCast sockets. But then you would have to
use Datagrams (UDP).
Another problem arises, when you want to go through
firewalls. RMI has probs, and bidirectional transfer
isn't allowed (some firewalls allow 1 request followed by
1 answer and then cut the connection to my knowlegde)
It's possible, but it's more complicated.
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