Hi
I´m a bit stuck with this..
I´ve spent nearly all the day with this and I don´t get what I want what´s
really annoying…so my love relation with T5 is turning into frustration
right now
Still trying to see how I can implement external loading of templates….
Option 1) Contribute Override
Option 2) Service decoration
Contribute Override
public static PageTemplateLocator
buildPageTemplateLocatorFileSystem(
@ContextProvider AssetFactory contextAssetFactory,
ComponentClassResolver componentClassResolver) {
return new
PageTemplateLocatorFileSystemImpl(contextAssetFactory.getRootResource(),
componentClassResolver);
}
public static void contributeServiceOverride(MappedConfiguration<Class,
Object> configuration,
@ContextProvider AssetFactory
contextAssetFactory,
ComponentClassResolver
componentClassResolver,
@Local
PageTemplateLocator
templateFileSystem)
{
configuration.add(PageTemplateLocator.class,
templateFileSystem);
}
I,m getting an exception
main ERROR Registry: Construction of service 'ServiceOverride' has failed
due to recursion: the service depends on
itself in some way. Please check
org.apache.tapestry5.ioc.internal.services.ServiceOverrideImpl(Map) (at
ServiceOverrideImpl.java:31) via
org.apache.tapestry5.ioc.services.TapestryIOCModule.bind(ServiceBinder) (at
TapestryIOCModule.java:46) for references to another service that is itself
dependent on service 'ServiceOverride'.
In this threaD Howard M. Lewis give us some pointer
http://old.nabble.com/ServiceOverride-recursion-issue---T5.2-td28117909.html
He´s suggestingh using local and that´s what I´ve done with no success.
Option 2)
USING A DECORATOR
public PageTemplateLocator decoratePageTemplateLocator( final
PageTemplateLocator original) {
return new PageTemplateLocator() {
public Resource findPageTemplateResource(
ComponentModel componentModel,
Locale locale) {
String pageName =
getLogicalName(componentModel);
boolean useClassPath = pageName == null;
Resource resource = null;
if (useClassPath) {
resource =
original.findPageTemplateResource( componentModel, locale);
} else {
String path = format("%s.%s", pageName,
InternalConstants.TEMPLATE_EXTENSION);
if (path != null) {
File file = new
File("C:\\temp\\" + path);
try {
resource = new
URIResource(file);
useClassPath =
(resource.toURL() == null);
} catch (MalformedURLException
e) {
useClassPath = true;
}
if (useClassPath) {
resource =
original.findPageTemplateResource(componentModel, locale);
}
}
}
return resource;
}
};
}
This seems to work partially ok.
I´ve a decorator with some debug logging statements.
This sample case
page template (page.tml)
<html xmlns:t="http://tapestry.apache.org/schema/tapestry_5_1_0.xsd";
xmlns:p="tapestry:parameter">
EXTERNAL PAGE TEMPLATE
<t:textBlock></t:textBlock>
</html>
I can see that my decorator is triggered when rendering the pate template
(and I can see it loads page.tml from the filesystem, which is ok)
However I cannot see any debug statement to render the textBlock!!!
So not sure why the decorator is not invoked when rendering a component
template.
A bit more investigation shows me that in the T5 InternalModule
public ComponentTemplateSource
buildComponentTemplateSource(TemplateParser parser, PageTemplateLocator
locator,
ClasspathURLConverter classpathURLConverter)
{
ComponentTemplateSourceImpl service = new
ComponentTemplateSourceImpl(parser, locator, classpathURLConverter);
updateListenerHub.addUpdateListener(service);
return service;
}
ComponentTemplateSourceImpl is the one responsible , just wondering if by
some reason decoration does not work around this builder method, which would
explain this issue.
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