mirror of
https://github.com/kovidgoyal/calibre.git
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62 lines
2.4 KiB
Python
62 lines
2.4 KiB
Python
## Copyright (C) 2006 Kovid Goyal kovid@kovidgoyal.net
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 2 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License along
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## with this program; if not, write to the Free Software Foundation, Inc.,
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## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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"""
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Defines the errors that libprs500 generates.
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G{classtree ProtocolError}
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"""
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from exceptions import Exception
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class ProtocolError(Exception):
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""" The base class for all exceptions in this package """
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def __init__(self, msg):
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Exception.__init__(self, msg)
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class TimeoutError(ProtocolError):
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""" There was a timeout during communication """
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def __init__(self, func_name):
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ProtocolError.__init__(self, "There was a timeout while communicating with the device in function: "+func_name)
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class DeviceError(ProtocolError):
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""" Raised when device is not found """
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def __init__(self):
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ProtocolError.__init__(self, "Unable to find SONY Reader. Is it connected?")
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class PacketError(ProtocolError):
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""" Errors with creating/interpreting packets """
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class ArgumentError(ProtocolError):
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""" Errors caused by invalid arguments to a public interface function """
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class PathError(ArgumentError):
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""" When a user supplies an incorrect/invalid path """
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class ControlError(ProtocolError):
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""" Errors in Command/Response pairs while communicating with the device """
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def __init__(self, query=None, response=None, desc=None):
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self.query = query
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self.response = response
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Exception.__init__(self, desc)
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def __str__(self):
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if self.query and self.response:
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return "Got unexpected response:\n" + \
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"query:\n"+str(self.query.query)+"\n"+\
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"expected:\n"+str(self.query.response)+"\n" +\
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"actual:\n"+str(self.response)
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if self.desc:
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return self.desc
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return "Unknown control error occurred"
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