Classloader-based plug-in architecture would permit LCF to be prebuilt
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Key: CONNECTORS-40
URL: https://issues.apache.org/jira/browse/CONNECTORS-40
Project: Lucene Connector Framework
Issue Type: Improvement
Components: Framework core
Reporter: Karl Wright
The LCF architecture at this point requires interaction with the build script
in order to add connectors. This is because the connector JSPs and jars need
to be added to the appropriate war files. However, there is another
architectural option that would eliminate this need, which is to use a custom
classloader to pull components from jars that are placed in a specific
directory or directories.
In order for this to work, however, the UI components of every connector must
become part of a jar. That implies that they will need to cease being JSPs,
and become instead methods of each connector class. (There is no proscription
against using something like Velocity for assembling the necessary output for a
connector, however.) Limiting the backwards-compatibility impact of this
change will be difficult, especially after a first release is made, so it seems
clear that any change along these lines should be attempted before version 1.0
is released.
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