Application schema resolver with catalog/classpath/cached-download support
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Key: GEOT-3085
URL: http://jira.codehaus.org/browse/GEOT-3085
Project: GeoTools
Issue Type: New Feature
Components: data app-schema
Reporter: Ben Caradoc-Davies
Assignee: Ben Caradoc-Davies
Schema management in GeoServer app-schema is problematic. It is currently
necessary to keep all XML schemas required for a configuration in a manually
created OASIS catalog for performance and compatibility reasons. This causes
large volumes of external data (the schemas) to be committed to subversion
repositories and distributed with configurations. Schemas must be manually
maintained.
The new application schema resolver (app-schema-resolver) supports schema
resolution via (in this order):
(1) OASIS Catalog, a manually configured mapping of URLs to local filesystem
resources.
(2) Classpath resolution via The Most Obvious Convention (host-reversed + path).
(3) Cached download of schemas, which are stored in the GeoServer data
directory.
The immediate effects are:
(1) Application schemas used for testing can be stored as maven artifacts and
downloaded once.
(2) Deployments using published schemas require no schema setup, as the cache
downloads the schemas on demand, once per deployments. This is a massive
improvement in usability.
The implementation is nearly complete. I intend to commit it to trunk and
2.6.x. It does not depend on app-schema, and may be suitable for general use.
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