[mapguide-trac] #1172: Improve legend performance by using GetResourceContents() API

[MapGuide Open Source]

#1172: Improve legend performance by using GetResourceContents() API
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   Reporter:  brucedechant  |       Owner:  brucedechant
       Type:  defect        |      Status:  new         
   Priority:  low           |   Milestone:  2.2         
  Component:  Viewer API    |     Version:  2.1.0       
   Severity:  minor         |    Keywords:              
External_id:                |  
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 The viewers generate the legend by executing a series of
 GetResourceContent() API requests - one for each layer of the map. This
 can impact performance significantly if the map contains lots of layers.

 By using the NEW GetResourceContents() API we can reduce the number of
 requests to generate the legend from the number of layers in the map to
 just 1.

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Ticket URL: <http://trac.osgeo.org/mapguide/ticket/1172>
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