trying to use twisted in a Zope 2 instance

git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@3503 fd906abe-77d9-0310-91a1-e0d9ade77398

twisted/z2/__init__.py

@@ -0,0 +1,4 @@
+"""
+$Id$
+"""
+

twisted/z2/configure.zcml

@@ -0,0 +1,11 @@
+<!-- $Id$ -->
+
+<configure
+   xmlns:zope="http://namespaces.zope.org/zope"
+   xmlns:browser="http://namespaces.zope.org/browser">
+
+  <zope:subscriber
+      for="zope.app.appsetup.interfaces.IDatabaseOpenedWithRootEvent"
+      handler="cybertools.twisted.z2.startup.startup" />
+
+</configure>

twisted/z2/startup.py

@@ -0,0 +1,38 @@
+
+"""
+Code to be called at Zope startup.
+
+$Id$
+"""
+
+from twisted.internet import reactor
+from OFS.Application import AppInitializer
+from zope.event import notify
+from zope.app.appsetup.interfaces import DatabaseOpenedWithRoot
+
+
+def startup(event):
+    print '*** Database opened: %s' % event.database
+    #twisted_target(event.database)
+
+
+base_install_standards = AppInitializer.install_standards
+
+def install_standards(self):
+    result = base_install_standards(self)
+    notify(DatabaseOpenedWithRoot(self.getApp()._p_jar.db()))
+    return result
+
+#AppInitializer.install_standards = install_standards
+#print '*** AppInitializer monkey patch installed'
+
+
+def twisted_target(db):
+    reactor.callLater(5, show_application, db)
+
+
+def show_application(db):
+    c = db.open()
+    print '*** Application: %s' % c.root()['Application']
+    c.close()
+    reactor.callLater(5, show_application, db)