Hi everyone,
I'm working on some small application, and I need to register every user
action into a proprietary module. I need to record the total time consumed
by a request, the action that triggered the event and some http parameters.
The Tapestry version is 5.0.18, under Jboss 4.0.5.
To avoid code duplication I thought to use some kind of request filter, for
page rendering and ajax requests both... I read the APIs and found
ComponentEventRequestFilter, which works fine when the URL change. But I
can't find a similar class for the Ajax events! I found AjaxFilter /
AjaxComponentEventRequestHandler .. but they are under the
org.apache.tapestry5.internal.services package, which is bad to use - and
they don't work.
I get this error when I start jboss: java.lang.RuntimeException: Service id
'AjaxComponentEventRequestHandler' has already been defined by
org.apache.tapestry5.services.TapestryModule.buildAjaxComponentEventRequestHandler(List,
Logger, ServiceResources) (at TapestryModule.java:1267) and may not be
redefined by [myapp].AppModule.buildAjaxComponentEventRequestHandler(List,
Logger, ServiceResources) (at AppModule.java:127). You should rename one of
the service builder methods.
at
org.apache.tapestry5.ioc.internal.RegistryImpl.<init>(RegistryImpl.java:170)
at
org.apache.tapestry5.ioc.RegistryBuilder.build(RegistryBuilder.java:168)
at
org.apache.tapestry5.internal.TapestryAppInitializer.getRegistry(TapestryAppInitializer.java:146)
at org.apache.tapestry5.TapestryFilter.init(TapestryFilter.java:80)
at
org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:223)
This is what I put in the AppModule:
public void
contributeComponentEventRequestHandler(OrderedConfiguration<ComponentEventRequestFilter>
configuration,
@InjectService("AjaxComponentEventFilter") AjaxFilter
compFilter) {
configuration.add("ajaxComponentEventFilter", compFilter);
}
[...]
public AjaxFilter buildAjaxComponentEventRequestHandler(
final List<ComponentEventRequestFilter> configuration,
final Logger logger, final ServiceResources resources) {
return new AjaxFilter(null, null) {
public void handle(ComponentEventRequestParameters
parameters,
@Ajax ComponentEventRequestHandler
handler)
throws IOException {
System.out.println("Before handle");
handler.handle(parameters);
System.out.println("After handle");
}
};
}
I also tried to write a ComponentEventRequestFilter with the @Ajax
annotation on the ComponentEventRequestHandler... but it doesn't intercept
anything:
public ComponentEventRequestFilter buildMyComponentEvent(final Logger
log,
final RequestGlobals globals) {
return new ComponentEventRequestFilter() {
public void handle(ComponentEventRequestParameters
parameters,
@Ajax
ComponentEventRequestHandler handler)
throws IOException {
long millis1 = System.currentTimeMillis();
handler.handle(parameters);
long millis2 = System.currentTimeMillis();
}
};
}
How could I workaround this problem? Is there a better way to solve my
issue?
Thanks in advance, Andrea
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