c701a05d9e
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@2118 fd906abe-77d9-0310-91a1-e0d9ade77398
112 lines
3.4 KiB
Python
112 lines
3.4 KiB
Python
#
|
|
# Copyright (c) 2007 Helmut Merz helmutm@cy55.de
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
#
|
|
|
|
"""
|
|
Message management.
|
|
|
|
$Id$
|
|
"""
|
|
|
|
from zope.interface import Interface, Attribute
|
|
from zope.i18nmessageid import MessageFactory
|
|
from zope import schema
|
|
|
|
from cybertools.composer.interfaces import ITemplate, IComponent
|
|
|
|
_ = MessageFactory('zope')
|
|
|
|
|
|
class IRuleManager(Interface):
|
|
""" A manager (or container) for rules.
|
|
"""
|
|
|
|
title = schema.TextLine(
|
|
title=_(u'Title'),
|
|
description=_(u'The title of the object.'),
|
|
required=True,)
|
|
|
|
rules = Attribute('An ordered collection of rules managed by this object.')
|
|
|
|
def handleEvent(event):
|
|
""" Handle the event given and apply the corresponding rules
|
|
to the client object.
|
|
"""
|
|
|
|
|
|
class IRule(ITemplate):
|
|
""" A rule that will be applied .
|
|
"""
|
|
|
|
name = schema.ASCII(
|
|
title=_(u'Name'),
|
|
description=_(u'The internal name of the rule.'),
|
|
required=True,)
|
|
title = schema.TextLine(
|
|
title=_(u'Title'),
|
|
description=_(u'The title or label of the rule.'),
|
|
required=True,)
|
|
description = schema.Text(
|
|
title=_(u'Description'),
|
|
description=_(u'A brief description of the rule.'),
|
|
required=False,)
|
|
|
|
manager = Attribute('The associated rule manager.')
|
|
events = Attribute('The events to be handled by this rule.')
|
|
conditions = Attribute('Conditions to be checked.'
|
|
'This is typically a list of names of ICondition adapters.')
|
|
actions = Attribute('Sequence of actions to be carried out by this rule.')
|
|
|
|
|
|
class IEvent(Interface):
|
|
|
|
name = Attribute('The name by which the event will be identified.')
|
|
title = Attribute('A human readable title or label.')
|
|
context = Attribute('An object that is associated with the event.')
|
|
|
|
|
|
class ICondition(Interface):
|
|
|
|
def __call__(context, params):
|
|
""" Should return True if the condition should be fulfilled;
|
|
will allow the rule to call its actions.
|
|
"""
|
|
|
|
|
|
class IAction(IComponent):
|
|
""" Controls what will be done.
|
|
"""
|
|
|
|
name = schema.ASCII(
|
|
title=_(u'Name'),
|
|
description=_(u'The name of the action.'),
|
|
required=True,)
|
|
|
|
handlerName = Attribute('Name of the adapter that will carry out the action.')
|
|
parameters = Attribute('Mapping with additional preset informations that '
|
|
'will be supplied to the action handlers.')
|
|
rule = Attribute('The rule the action belongs to.')
|
|
|
|
|
|
class IActionHandler(Interface):
|
|
""" Does the real work.
|
|
"""
|
|
|
|
def __call__(data, params):
|
|
""" Execute the action, using the data and parameters given (mappings).
|
|
"""
|
|
|