Source Code for Module dbus.exceptions

  1  """D-Bus exceptions.""" 
  2   
  3  # Copyright (C) 2007 Collabora Ltd. <http://www.collabora.co.uk/> 
  4  # 
  5  # Permission is hereby granted, free of charge, to any person 
  6  # obtaining a copy of this software and associated documentation 
  7  # files (the "Software"), to deal in the Software without 
  8  # restriction, including without limitation the rights to use, copy, 
  9  # modify, merge, publish, distribute, sublicense, and/or sell copies 
 10  # of the Software, and to permit persons to whom the Software is 
 11  # furnished to do so, subject to the following conditions: 
 12  # 
 13  # The above copyright notice and this permission notice shall be 
 14  # included in all copies or substantial portions of the Software. 
 15  # 
 16  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
 17  # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
 18  # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 19  # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
 20  # HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
 21  # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 22  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 23  # DEALINGS IN THE SOFTWARE. 
 24   
 25  __all__ = ('DBusException', 'MissingErrorHandlerException', 
 26             'MissingReplyHandlerException', 'ValidationException', 
 27             'IntrospectionParserException', 'UnknownMethodException', 
 28             'NameExistsException') 
 29   
 30   
 31 -class DBusException(Exception): 
 32   
 33      include_traceback = False 
 34      """If True, tracebacks will be included in the exception message sent to 
 35      D-Bus clients. 
 36   
 37      Exceptions that are not DBusException subclasses always behave 
 38      as though this is True. Set this to True on DBusException subclasses 
 39      that represent a programming error, and leave it False on subclasses that 
 40      represent an expected failure condition (e.g. a network server not 
 41      responding).""" 
 42   
 43 -    def __init__(self, *args, **kwargs): 
 44          name = kwargs.pop('name', None) 
 45          if name is not None or getattr(self, '_dbus_error_name', None) is None: 
 46              self._dbus_error_name = name 
 47          if kwargs: 
 48              raise TypeError('DBusException does not take keyword arguments: %s' 
 49                              % ', '.join(kwargs.keys())) 
 50          Exception.__init__(self, *args) 
 51   
 52 -    def __str__(self): 
 53          s = Exception.__str__(self) 
 54          if self._dbus_error_name is not None: 
 55              return '%s: %s' % (self._dbus_error_name, s) 
 56          else: 
 57              return s 
 58   
 59 -    def get_dbus_message(self): 
 60          s = Exception.__str__(self) 
 61          if isinstance(s, bytes): 
 62              return s.decode('utf-8', 'replace') 
 63          return s 
 64   
 65 -    def get_dbus_name(self): 
 66          return self._dbus_error_name 
 67   
 68 -class MissingErrorHandlerException(DBusException): 
 69   
 70      include_traceback = True 
 71   
 72 -    def __init__(self): 
 73          DBusException.__init__(self, "error_handler not defined: if you define a reply_handler you must also define an error_handler") 
 74   
 75 -class MissingReplyHandlerException(DBusException): 
 76   
 77      include_traceback = True 
 78   
 79 -    def __init__(self): 
 80          DBusException.__init__(self, "reply_handler not defined: if you define an error_handler you must also define a reply_handler") 
 81   
 82 -class ValidationException(DBusException): 
 83   
 84      include_traceback = True 
 85   
 86 -    def __init__(self, msg=''): 
 87          DBusException.__init__(self, "Error validating string: %s"%msg) 
 88   
 89 -class IntrospectionParserException(DBusException): 
 90   
 91      include_traceback = True 
 92   
 93 -    def __init__(self, msg=''): 
 94          DBusException.__init__(self, "Error parsing introspect data: %s"%msg) 
 95   
 96 -class UnknownMethodException(DBusException): 
 97   
 98      include_traceback = True 
 99      _dbus_error_name = 'org.freedesktop.DBus.Error.UnknownMethod' 
100   
101 -    def __init__(self, method): 
102          DBusException.__init__(self, "Unknown method: %s"%method) 
103   
104 -class NameExistsException(DBusException): 
105   
106      include_traceback = True 
107   
108 -    def __init__(self, name): 
109          DBusException.__init__(self, "Bus name already exists: %s"%name) 
110