1 """

     2     Our WSGI web interface, which can serve the JS UI and any .png tiles via HTTP.

     3 """

     4 

     5 from werkzeug import Request, responder

     6 from werkzeug import exceptions

     7 

     8 from pngtile import handlers

     9 

    10 

    11 class WSGIApplication (object) :

    12     """

    13         Simple WSGI application invoking the werkzeug handlers

    14     """

    15 

    16     def __init__ (self, cache=None) :

    17         """

    18             Use given cache if any

    19         """

    20 

    21         self.cache = cache

    22 

    23     @responder

    24     def __call__ (self, env, start_response) :

    25         """

    26             Main WSGI entry point.

    27 

    28             This is wrapped with werkzeug, so we can return a Response object

    29         """

    30 

    31         req = Request(env, start_response)

    32         

    33         try :

    34             return handlers.handle_req(req, self.cache)

    35 

    36         except exceptions.HTTPException, e :

    37             return e

    38