[FELIX-4811] Optimize ConfigurationManager#listConfigurations

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: configadmin-1.8.0
• Fix Version/s: configadmin-1.8.2
• Component/s: Configuration Admin
• Assignee: Guillaume Nodet
• Reporter: Guillaume Nodet
• Created: 27/Feb/15 15:32
• Updated: 17/Mar/15 06:44
• Resolved: 02/Mar/15 17:23

Description

The ConfigurationManager#listConfigurations is far from optimal.
It iterates on all configurations, thereby creating a copy of the properties for each configuration. Then, for each configuration, filter#match() is called, which itself create a case insentive copy of the properties for matching.
If you have quite a lot of configurations and quite a lof of SCR components, it can be quite time consuming.

Attached is a YourKit profile view which shows that 90% of the time is spent into copying properties for nothing.