source: main/waeup.sirp/trunk/src/waeup/sirp/app.py @ 11110

Last change on this file since 11110 was 7321, checked in by Henrik Bettermann, 13 years ago

Replace the term 'WAeUP' by SIRP which is a WAeUP product.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 3.5 KB
Line 
1## $Id: app.py 7321 2011-12-10 06:15:17Z henrik $
2##
3## Copyright (C) 2011 Uli Fouquet & Henrik Bettermann
4## This program is free software; you can redistribute it and/or modify
5## it under the terms of the GNU General Public License as published by
6## the Free Software Foundation; either version 2 of the License, or
7## (at your option) any later version.
8##
9## This program is distributed in the hope that it will be useful,
10## but WITHOUT ANY WARRANTY; without even the implied warranty of
11## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12## GNU General Public License for more details.
13##
14## You should have received a copy of the GNU General Public License
15## along with this program; if not, write to the Free Software
16## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17##
18import grok
19from zope.authentication.interfaces import IAuthentication
20from zope.component import getUtilitiesFor
21from zope.component.interfaces import ObjectEvent
22from zope.pluggableauth import PluggableAuthentication
23from waeup.sirp.authentication import setup_authentication
24from waeup.sirp.datacenter import DataCenter
25from waeup.sirp.students.container import StudentsContainer
26from waeup.sirp.hostels.container import HostelsContainer
27from waeup.sirp.interfaces import (
28    IUniversity, ISIRPPluggable, IObjectUpgradeEvent, )
29from waeup.sirp.userscontainer import UsersContainer
30from waeup.sirp.utils.logger import Logger
31from waeup.sirp.utils.helpers import attrs_to_fields
32from waeup.sirp.configuration import ConfigurationContainer
33
34class University(grok.Application, grok.Container, Logger):
35    """A university.
36    """
37    grok.implements(IUniversity)
38
39    # Setup authentication for this app. Note: this is only
40    # initialized, when a new instance of this app is created.
41    grok.local_utility(
42        PluggableAuthentication, provides = IAuthentication,
43        setup = setup_authentication,)
44
45    def __init__(self, *args, **kw):
46        super(University, self).__init__(*args, **kw)
47        self.setup()
48        return
49
50    def setup(self):
51        """Setup some hard-wired components.
52
53        Create local datacenter, containers for users, students and
54        the like.
55        """
56        self['users'] = UsersContainer()
57        self['datacenter'] = DataCenter()
58        self['students'] = StudentsContainer()
59        self['configuration'] = ConfigurationContainer()
60        self['hostels'] = HostelsContainer()
61        self._createPlugins()
62
63    def _createPlugins(self):
64        """Create instances of all plugins defined somewhere.
65        """
66        for name, plugin in getUtilitiesFor(ISIRPPluggable):
67            plugin.setup(self, name, self.logger)
68        return
69
70    def updatePlugins(self):
71        """Lookup all plugins and call their `update()` method.
72        """
73        name = getattr(self, '__name__', '<Unnamed>')
74        self.logger.info('Fire upgrade event for site %s' % name)
75        grok.notify(ObjectUpgradeEvent(self))
76        self.logger.info('Done.')
77        self.logger.info('Now upgrading any plugins.')
78        for name, plugin in getUtilitiesFor(ISIRPPluggable):
79            plugin.update(self, name, self.logger)
80        self.logger.info('Plugin update finished.')
81        return
82attrs_to_fields(University)
83
84class ObjectUpgradeEvent(ObjectEvent):
85    """An event fired, when datacenter storage moves.
86    """
87    grok.implements(IObjectUpgradeEvent)
88
89@grok.subscribe(University, grok.IObjectAddedEvent)
90def handle_university_added(app, event):
91    app.logger.info('University `%s` added.' % getattr(app, '__name__', None))
92    return
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