51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
## Copyright 2010, 2011, 2012 Tony Garnock-Jones <tonygarnockjones@gmail.com>.
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##
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## This file is part of Hop.
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##
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## Hop is free software: you can redistribute it and/or modify it
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## under the terms of the GNU General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## Hop 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
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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## License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with Hop. If not, see <http://www.gnu.org/licenses/>.
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import logging
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class HopNode:
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def handle_hop(self, msg):
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raw_dispatch(self, 'hop_', msg)
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def error(self, message, details):
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logging.error('%r: %s: %r' % (self, message, details))
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class HopRelayMixin:
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def inbound_hop(self, msg):
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raw_dispatch(self, 'inbound_hop_', msg)
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def raw_dispatch(self, prefix, msg):
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if type(msg) is not list or len(msg) < 1:
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self.error('Invalid message', [])
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return
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raw_selector = msg[0]
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selector = prefix + raw_selector
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args = msg[1:]
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handler = getattr(self, selector, None)
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if not handler:
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self.error('Unsupported message or arity', [raw_selector])
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return
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try:
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handler(*args)
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except Exception:
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import traceback
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traceback.print_exc()
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self.error('Exception handling message', [raw_selector])
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