Allow for lazy loading and late API binding
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Key: FELIX-2264
URL: https://issues.apache.org/jira/browse/FELIX-2264
Project: Felix
Issue Type: Improvement
Components: Web Console
Affects Versions: webconsole-memoryusage-plugin-1.0.0
Reporter: Felix Meschberger
Assignee: Felix Meschberger
Fix For: webconsole-memoryusage-plugin-1.0.2
It would be good if the memory usage plugin would register the services as
service factories and lazily bind to required API. This would allow for
on-demand access to services.
For example: in the current plugin release, the shell command service may only
be registered if the Shell bundle is installed. If the shell bundle is
installed after the memory usage plugin, the memory usage plugin has to be
rewired to register the shell command. Using a ServiceFactory and
DynamicImport-Package for the Shell API, the service can be registered but
actual command service instantiation and wiring to the service API is delayed
until the Shell bundle is installed.
Same for the Web Console integration and configuration by the configuration
admin.
In addition the dependency on the SLF4J API for logging should be replaced by
using the OSGi LogService -- of course also with delayed and dynamic binding.
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