gajim-plural/gajim/command_system/errors.py

54 lines
1.5 KiB
Python

# Copyright (C) 2009-2010 Alexander Cherniuk <ts33kr@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
class BaseError(Exception):
"""
Common base for errors which relate to a specific command.
Encapsulates everything needed to identify a command, by either its
object or name.
"""
def __init__(self, message, command=None, name=None):
self.message = message
self.command = command
self.name = name
if command and not name:
self.name = command.first_name
super(BaseError, self).__init__()
def __str__(self):
return self.message
class DefinitionError(BaseError):
"""
Used to indicate errors occurred on command definition.
"""
pass
class CommandError(BaseError):
"""
Used to indicate errors occurred during command execution.
"""
pass
class NoCommandError(BaseError):
"""
Used to indicate an inability to find the specified command.
"""
pass