> From: John Shilling [mailto:jshill...@scihealth.com]
> Subject: RE: Refereing to a Container Attribute in a Nested Container
>
> Each virtual host has a root.xml
That better be ROOT.xml, not root.xml, if you want Tomcat to treat it as the
default webapp for the <Host>; case matters.
> <Context displayName="sample1" docBase="../SciHealthDocBase" path=""
Assuming you're running in a reasonably recent version of Tomcat (you didn't
bother to tell us), there's no displayName attribute for <Context>, nor are the
docBase and path attributes allowed here. The docBase attribute should only be
used when the webapp is deployed outside of Tomcat's directory structure.
> The getRealPath() method of my ServletContext gives me paths
> relative to my docBase.
It's never a good idea to use getRealPath(), since the container is under no
obligation to return anything useful.
> Since the Context declaration is being loaded as part of a
> Virtual Host I was hoping to be able to refer to the appBase
> attribute of the Host entry to make my Context declaration
> more robust.
I'm not aware of any mechanism of retrieving higher-level container attributes.
As an alternative, consider using system properties for each host/webapp
combination; these can be specified during Tomcat startup, and can be
referenced in <Parameter> elements via ${[system.property.name]}.
- Chuck
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