--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_content/features/glossary/task.py	Fri Dec 28 10:19:45 2018 +0100
@@ -0,0 +1,54 @@
+#
+# Copyright (c) 2008-2018 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+
+__docformat__ = 'restructuredtext'
+
+from pyramid.events import subscriber
+from zope.interface import implementer
+from zope.lifecycleevent import IObjectAddedEvent, IObjectModifiedEvent
+
+from pyams_content.component.theme import ITagsManager
+from pyams_content.features.glossary import get_glossary_automaton
+from pyams_content.features.glossary.interfaces import IGlossaryUpdaterTask
+from pyams_content.root import ISiteRoot
+from pyams_scheduler.interfaces import IScheduler
+from pyams_scheduler.task import Task
+from pyams_thesaurus.interfaces.term import IThesaurusTerm
+from pyams_utils.registry import get_utility
+from pyams_utils.request import check_request
+from pyams_utils.traversing import get_parent
+
+
+@implementer(IGlossaryUpdaterTask)
+class GlossaryUpdaterTask(Task):
+    """Glossary updater task"""
+
+    settings_view_name = None
+
+    def run(self, report):
+        root = get_parent(self, ISiteRoot)
+        get_glossary_automaton(root)
+
+
+@subscriber(IObjectAddedEvent, context_selector=IThesaurusTerm)
+@subscriber(IObjectModifiedEvent, context_selector=IThesaurusTerm)
+def handle_updated_thesaurus_term(event):
+    """Reset glossary automaton on term update"""
+    request = check_request()
+    tags_manager = ITagsManager(request.root)
+    if not tags_manager.enable_glossary:
+        return
+    scheduler = get_utility(IScheduler)
+    for task in scheduler.values():
+        if IGlossaryUpdaterTask.providedBy(task):
+            task.launch()
+            break