multi_interface_roam: config.py Source File

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00001 #! /bin/sh
00002 
00003 import rospy
00004 
00005 class NoDefault:
00006     pass
00007 
00008 def get_interface_parameter(interface, name, default = NoDefault):
00009     try:
00010         return rospy.get_param("~interfaces/%s/%s"%(interface, name))
00011     except KeyError:
00012         pass    
00013     
00014     try:
00015         return rospy.get_param("~default/%s"%name)
00016     except KeyError:
00017         pass
00018 
00019     if default is not NoDefault:
00020         return default
00021 
00022     raise KeyError("Could not find parameter %s for interface %s."%(interface, parameter))
00023     
00024 def get_parameter(name, default = NoDefault):
00025     try:
00026         return rospy.get_param("~%s"%name)
00027     except:
00028         if default is not NoDefault:
00029             return default
00030     
00031     raise KeyError("Could not find parameter %s."%name)