Hi all, I'm trying to make sure I understand what happens in a certain pipeline
flow using Matchers.
If you've got an embedded matcher, with further pipeline elements after it, and
the inner matcher doesn't match, does the pipeline default to the elements
below it?
And more to the point, if the matcher matches, do those additional elements
after it get included in pipeline processing? Perhaps the example will
illuminate best:
<map:match pattern="disseminate-package/*/*/**">
<map:match type="request-parameter" pattern="package">
<map:read type="DisseminationPackageReader">
<map:parameter name="handle" value="{../1}/{../2}"/>
<map:parameter name="name" value="{../3}"/>
<map:parameter name="package" value="{1}"/>
</map:read>
</map:match>
<map:read type="DisseminationPackageReader">
<map:parameter name="handle" value="{1}/{2}"/>
<map:parameter name="name" value="{3}"/>
</map:read>
</map:match>
It appears to me that the DisseminationPackageReader will execute twice in the
situation where the "package" parameter is present. Is this true?
Shouldn't this be using a request-parameter Selector or some such mechanism to
decide whether to use the first or the second pipeline?
--
sands fish
Software Engineer
MIT Libraries
Technology Research & Development
[email protected]<mailto:[email protected]>
E25-131
