response/exception.py at master · feurix/response · GitHub

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# -*- coding: utf-8 -*-

'''Response Project - Exceptions'''

# Copyright (C) 2009-2010 John Feuerstein <john@feurix.com>
#
# This file is part of the response project.
#
# Response 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.
#
# Response 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 Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

from globals import __author__, __copyright__, __license__, __version__

from logger import getModuleLog
log = getModuleLog(__name__)


class Error(Exception):
    '''All exceptions raised by response are based on this one'''
    pass

class DaemonError(Error):
    pass

class FilePathError(Error):
    '''Thrown by prepare_filepath'''

    def __init__(self, type, message):
        self.type = type
        self.errorMessage = message

    def __str__(self):
        return self.errorMessage

class PidFileError(Error):
    '''Thrown by various error cases within PidFile'''

    def __init__(self, exception):
        self.errorMessage = 'No description available'
        self.stalefile = False

        if exception.type == None:
            raise exception
        elif exception.type == 1:
            self.stalefile = True
            self.errorMessage = 'Pidfile already existing'
        elif exception.type > 1:
            self.errorMessage = 'Error preparing path to pidfile'
            log.fatal(exception.errorMessage)

    def __str__(self):
        return self.errorMessage

class ConfigError(Error):
    pass

class BackendError(Error):
    pass

class RelayError(Error):
    pass

class DatabaseError(Error):
    pass

class DatabaseQueryError(Error):
    pass

class ProcessError(Error):
    pass

class ValidationError(ProcessError):
    pass

class RecordError(ProcessError):
    pass

class RecordResponseError(RecordError):
    pass

class InvalidHeaderError(ValidationError):
    pass

class InvalidSenderError(ValidationError):
    pass

class InvalidRecipientError(ValidationError):
    pass


# Special cases not based on Error

class NotImplemented(NotImplementedError):
    pass

class SignalReceived(Exception):
    '''Thrown as soon as we catch a handled signal'''

    def __init__(self, signum, signame=None):
        self.signum = signum
        self.signame = signame
        if signame:
            self.errorMessage = 'Received signal %d (%s)' % (signum, signame)
        else:
            self.errorMessage = 'Received signal %d' % signum

    def __str__(self):
        return self.errorMessage