2bb96bea70
Also implement lots of fixes and improvements. fixes: #3381 Change-Id: Ibe6664da00756ae5813b90f190295045808b2ff0
61 lines
1.9 KiB
Python
61 lines
1.9 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# *****************************************************************************
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc.,
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# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# Module authors:
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# Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
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#
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# *****************************************************************************
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"""Encoding/decoding Frames"""
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# Base class
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class Framer(object):
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"""Frames and unframes an encoded message
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also transforms the encoded message to the 'wire-format' (and vise-versa)
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note: not all MessageEncoders can use all Framers,
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but the intention is to have this for as many as possible.
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"""
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def encode(self, *frames):
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"""return the wire-data for the given messageframes"""
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raise NotImplemented
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def decode(self, data):
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"""return a list of messageframes found in data"""
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raise NotImplemented
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def reset(self):
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"""resets the de/encoding stage (clears internal information)"""
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raise NotImplemented
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# now some Implementations
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from .null import NullFramer
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from .eol import EOLFramer
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from .rle import RLEFramer
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from .demo import DemoFramer
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FRAMERS = {
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'null': NullFramer,
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'eol': EOLFramer,
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'rle': RLEFramer,
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'demo': DemoFramer,
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}
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__ALL__ = ['FRAMERS']
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