b978abe473
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@1280 fd906abe-77d9-0310-91a1-e0d9ade77398
75 lines
2.2 KiB
Python
75 lines
2.2 KiB
Python
#
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# Copyright (c) 2006 Helmut Merz helmutm@cy55.de
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#
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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
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Process definitions.
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$Id$
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"""
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from zope import component
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from zope.interface import implements
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from cybertools.process.interfaces import IActivity, IProcess
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from cybertools.process.interfaces import IActionHandler
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from cybertools.process.execution import Execution
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class Activity(object):
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implements(IActivity)
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def __init__(self, name=u'', title=u'', handlerName=''):
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self._successors = set()
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self._handlerName = handlerName
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self.__name__ = name
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self.title = title
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@property
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def successors(self): return self._successors
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def getHandlerName(self): return self._handlerName
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def setHandlerName(self, name): self._handlerName = name
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handlerName = property(getHandlerName, setHandlerName)
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def add(self, activity):
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self.successors.add(activity)
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def execute(self, execution=None):
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if execution is None:
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execution = Execution()
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execution.currentActivity = self
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handler = component.queryAdapter(self, IActionHandler, name=self.handlerName)
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if handler is not None:
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handler.handle(execution) # creates work item; work item triggers execution
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else:
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execution.trigger()
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return execution
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class Process(object):
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implements(IProcess)
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def __init__(self):
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self._startActivity = Activity()
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@property
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def startActivity(self): return self._startActivity
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def execute(self):
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return self.startActivity.execute()
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