44 lines
1.6 KiB
Python
44 lines
1.6 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 dispatch
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import namespace
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class Factory(dispatch.HopNode):
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def __init__(self):
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self.classes = {}
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def register(self, classname, classval):
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self.classes[classname] = classval
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def hop_create(self, classname, arg, replysink, replyname):
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if classname not in self.classes:
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namespace.post(replysink, replyname,
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['create-failed', ['factory', 'class-not-found']], '')
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return
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try:
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node = self.classes[classname](arg)
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namespace.post(replysink, replyname, ['create-ok', node.node_info()], '')
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except Exception, e:
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import traceback
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traceback.print_exc()
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namespace.post(replysink, replyname, ['create-failed', ['constructor', str(e)]], '')
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default_factory = Factory()
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namespace.bind('factory', default_factory)
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