provide main and app modules for application startup; extend TelnetController to support twistd services

git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@2497 fd906abe-77d9-0310-91a1-e0d9ade77398

agent/app.py

@@ -1,4 +1,3 @@
-#! /usr/bin/env python2.4
 #
 #  Copyright (c) 2008 Helmut Merz helmutm@cy55.de
 #
@@ -23,32 +22,10 @@ Agent application.
 $Id$
 """
 
-import os
+from twisted.application import service
-from twisted.internet import reactor
 
-from cybertools.agent.base.agent import Master
+from cybertools.agent import main
 
 
-def getConfig():
+application = main.application = service.Application('Agent Application')
-    agentHome = os.path.abspath(os.path.dirname(__file__))
+main.setup()
-    configName = 'agent.cfg'
-    configFile = open(os.path.join(agentHome, configName))
-    config = configFile.read()
-    configFile.close()
-    return config
-
-
-def start():
-    master = Master(getConfig())
-    master.setup()
-
-    print 'Starting agent application...'
-    print 'Using controllers %s.' % ', '.join(master.config.controller.names)
-
-    reactor.run()
-
-    print 'Agent application has been stopped.'
-
-
-if __name__ == '__main__':
-    start()

agent/control/cmdline.py

@@ -22,6 +22,7 @@ Base/sample controller implementation.
 $Id$
 """
 
+from twisted.application import service, internet
 from twisted.internet import protocol, reactor, stdio
 from twisted.protocols import basic
 from zope.interface import implements
@@ -44,12 +45,15 @@ controllers.register(CmdlineController, Master, name='cmdline')
 
 class TelnetController(CmdlineController):
 
-    delimiter = '\r\n'
-
     def setup(self):
         super(CmdlineController, self).setup()
         port = self.agent.config.controller.telnet.port
+        from cybertools.agent.main import application
+        if application is None:
             reactor.listenTCP(port, TelnetServerFactory(self))
+        else:
+            service = internet.TCPServer(port, TelnetServerFactory(self))
+            service.setServiceParent(application)
 
 controllers.register(TelnetController, Master, name='telnet')
 
@@ -61,6 +65,7 @@ class CmdlineProtocol(basic.LineReceiver):
 
     def connectionMade(self):
         self.sendLine("Agent console. Type 'help' for help.")
+        self.transport.write('> ')
 
     def lineReceived(self, line):
         if not line:
@@ -77,6 +82,7 @@ class CmdlineProtocol(basic.LineReceiver):
                 method(*args)
             except Exception, e:
                 self.sendLine('Error: ' + str(e))
+        self.transport.write('> ')
 
     def do_help(self, command=None):
         if command:

agent/main.py

@@ -0,0 +1,58 @@
+#! /usr/bin/env python2.4
+#
+#  Copyright (c) 2008 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
+#
+
+"""
+Agent application.
+
+$Id$
+"""
+
+import os
+from twisted.internet import reactor
+
+from cybertools.agent.base.agent import Master
+
+
+application = None  # contains application object if started via twistd
+
+
+def getConfig():
+    agentHome = os.path.abspath(os.path.dirname(__file__))
+    configName = 'agent.cfg'
+    configFile = open(os.path.join(agentHome, configName))
+    config = configFile.read()
+    configFile.close()
+    return config
+
+
+def setup():
+    master = Master(getConfig())
+    master.setup()
+    print 'Starting agent application...'
+    print 'Using controllers %s.' % ', '.join(master.config.controller.names)
+
+
+def startReactor():
+    reactor.run()
+    print 'Agent application has been stopped.'
+
+
+if __name__ == '__main__':
+    setup()
+    startReactor()