/[thuban]/branches/WIP-pyshapelib-bramz/Extensions/wms/capabilities.py
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revision 2137 by joey, Wed Mar 24 20:07:34 2004 UTC revision 2149 by joey, Thu Apr 1 10:17:00 2004 UTC
# Line 19  Line 19 
19  """  """
20  Maintain WMS Capabilities  Maintain WMS Capabilities
21    
22    Inherits methods from WMSCapabilitiesParser
23    
24  class WMSCapabilities:  class WMSCapabilities:
25      __init__ (resource xor filename xor nothing)      __init__ (resource xor filename xor nothing)
26    
27      getErrorMsg()      getErrorMsg()
28    
29      fetchCapabilities(*resource)      fetchCapabilities(resource)
30      saveCapabilities(filename)      saveCapabilities(filename)
31      loadCapabilities(filename)      loadCapabilities(filename)
32      printCapabilities()      printCapabilities()
# Line 67  if __name__ == "__main__": Line 69  if __name__ == "__main__":
69  from Thuban import _  from Thuban import _
70    
71  from ogclib.WMSClient import WMSClient  from ogclib.WMSClient import WMSClient
72    from parser import WMSCapabilitiesParser
73    
74  class WMSCapabilities(WMSClient):  class WMSCapabilities(WMSClient, WMSCapabilitiesParser):
75      """      """
76      Thuban class to maintain capabilities.  This class provides      Thuban class to maintain capabilities.  This class provides
77      methods to fetch, save and load capabilities as well as methods to      methods to fetch, save and load capabilities as well as methods to
# Line 89  class WMSCapabilities(WMSClient): Line 92  class WMSCapabilities(WMSClient):
92          """          """
93          Initialises Capabilities with one optional parameter          Initialises Capabilities with one optional parameter
94    
95            param can be either a URL or a filename:
96    
97          filename -- load capabilities from file          filename -- load capabilities from file
98          url -- fetch capabilities from network          url -- fetch capabilities from network
99          """          """
# Line 101  class WMSCapabilities(WMSClient): Line 106  class WMSCapabilities(WMSClient):
106                      self.fetchCapabilities(parm[0])                      self.fetchCapabilities(parm[0])
107                  else:                  else:
108                      self.errorMsg \                      self.errorMsg \
109                          = _("Resource '%s' is neither local file nor URL")                          = _("Resource '%s' is neither local file nor URL") \
110                              % parm[0]                          % parm[0]
111    
112    
113      def getErrorMsg(self):      def getErrorMsg(self):
# Line 118  class WMSCapabilities(WMSClient): Line 123  class WMSCapabilities(WMSClient):
123              self.wmsVersion = "1.0"              self.wmsVersion = "1.0"
124              self.capabilities = self.getCapabilities(resource, self.wmsVersion)              self.capabilities = self.getCapabilities(resource, self.wmsVersion)
125    
126            if self.capabilities:
127                self.grok(self.capabilities)
128    
129    
130      def saveCapabilities(self, fname):      def saveCapabilities(self, fname):
131          """Save capabilities to local file"""          """Save capabilities to local file"""
# Line 129  class WMSCapabilities(WMSClient): Line 137  class WMSCapabilities(WMSClient):
137                  out = open(fname, "w")                  out = open(fname, "w")
138                  out.write(self.capabilities)                  out.write(self.capabilities)
139                  out.close()                  out.close()
140              except:              except IOError:
141                  self.errorMsg = _("Can't open file '%s' for writing") % fname                  self.errorMsg = _("Can't open file '%s' for writing") % fname
142    
143    
# Line 140  class WMSCapabilities(WMSClient): Line 148  class WMSCapabilities(WMSClient):
148              input = open(fname, "r")              input = open(fname, "r")
149              self.capabilities = input.read()              self.capabilities = input.read()
150              input.close()              input.close()
151          except:              self.grok(self.capabilities)
152            except IOError:
153              self.errorMsg = _("Can't open file '%s' for reading") % fname              self.errorMsg = _("Can't open file '%s' for reading") % fname
154    
155    
# Line 154  class WMSCapabilities(WMSClient): Line 163  class WMSCapabilities(WMSClient):
163  if __name__ == "__main__":  if __name__ == "__main__":
164      capabilities \      capabilities \
165          = WMSCapabilities("http://frida.intevation.org/cgi-bin/frida_wms?")          = WMSCapabilities("http://frida.intevation.org/cgi-bin/frida_wms?")
166      if capa.getErrorMsg() is None:      if capabilities.getErrorMsg() is None:
167          capa.saveCapabilities("frida_capabilities.xml")          capabilities.saveCapabilities("frida_capabilities.xml")
168      else:      else:
169          print "Error: " + capa.getErrorMsg()          print "Error: " + capabilities.getErrorMsg()
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