Schema partition bootstrap code should be more flexible and reliable
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Key: DIRSERVER-834
URL: https://issues.apache.org/jira/browse/DIRSERVER-834
Project: Directory ApacheDS
Issue Type: Improvement
Affects Versions: 1.5.0
Reporter: David Jencks
Assigned To: David Jencks
Currently the extraction code is packed together with the output of the
apacheds-bootstrap-plugin into the same jar. However, the extraction code
blythely assumes that there's only one set of files to be loaded available on
the classpath. This makes it needlessly difficult to change the bootstrap
schemas (you have to include the extraction code yourself) and dangerous
(there's no check that only one set of files exist).
I'd like to
- put the extraction classes in a separate jar
- change them to check that there is only one set of files to try to load.
After this it should be easy to set up a jar with the bootstrap schemas you
need for a particular apacheds application by using the
apacheds-bootstrap-plugin and then include that jar in the server cp for that
application and get the schemas you need with no setup code.
Apparently there's been some misconception that getClass().getResource() will
only load from the jar the class is in. Looking at the code involved,
Class.getResource delegates to the class's classloader, which proceeds (in
general) to start by searching the parent classpath. If not found it calls
findResource. The javadoc for URLClassLoader.findResource says:
* Finds the resource with the specified name on the URL search path.
so there is no restriction to the jar the class came from.
So, I think that even if we keep the extraction classes in the same jar as the
files to extract we should make sure there's only one set in the classpath to
unpack.
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