check for an existing repository mapping before adding a new workspace for a
module
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Key: MAGNOLIA-3064
URL: http://jira.magnolia-cms.com/browse/MAGNOLIA-3064
Project: Magnolia
Issue Type: Improvement
Reporter: Fabrizio Giustina
Assignee: Fabrizio Giustina
Fix For: 4.3
This change is needed in order to be able to setup a separate clustered
repository for specific workspaces.
Although we have the repository mapping in place, which converts between a
logical workspace name to a repository/workspace name pair for jackrabbit, the
jackrabbit repository name is specified also in each module descriptor.
So if we have a module with a repository declared as:
{code}
<repositories>
<repository>
<name>magnolia</name>
<workspaces>
<workspace>commenting</workspace>
</workspaces>
<nodeTypeFile>/mgnl-nodetypes/commenting/magnolia-nodetypes.xml</nodeTypeFile>
</repository>
</repositories>
{code}
the only way to move this workspace to a shared repository is to patch the
module descriptor, changing the repository name to a different value, e.g.
"shared".
A good solution would have been avoiding the repository name in the module
descriptor at all, defaulting to Magnolia if there is no mapping already
defined in repositories.xml (but it's too late for a similar change, module
descriptors needs to be compatible with previous versions).
The proposed solution is to fix ModuleManagerImpl.loadRepository() in order to
look for an existing repo mapping using the workspace name. If the mapping is
found just use such repository instead of creating a new one, whatever
repository name is set in the module descriptor.
For the previous scenario, we will look for a mapping for the "commenting"
workspace. If found, we proceed using the jackrabbit repository name specified
in the mapping. (side note: ModuleManagerImpl actually always creates an
additional workspace with the same name of the repository - this should not be
done, the actual jackrabbit repository name could be any user-invented value)
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