2 NEPI, a framework to manage network experiments
3 Copyright (C) 2013 INRIA
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 from nepi.execution.resource import ResourceManager, clsinit
21 from nepi.execution.attribute import Attribute, Flags
23 from nepi.resources.omf.omf_api import OMFAPIFactory
29 class OMFChannel(ResourceManager):
31 .. class:: Class Args :
33 :param ec: The Experiment controller
34 :type ec: ExperimentController
35 :param guid: guid of the RM
37 :param creds: Credentials to communicate with the rm (XmppClient for OMF)
42 This class is used only by the Experiment Controller through the Resource Factory
46 _authorized_connections = ["OMFWifiInterface", "OMFNode"]
47 _waiters = ["OMFNode", "OMFWifiInterface"]
51 def _register_attributes(cls):
52 """Register the attributes of an OMF channel
54 channel = Attribute("channel", "Name of the application")
55 xmppSlice = Attribute("xmppSlice","Name of the slice", flags = Flags.Credential)
56 xmppHost = Attribute("xmppHost", "Xmpp Server",flags = Flags.Credential)
57 xmppPort = Attribute("xmppPort", "Xmpp Port",flags = Flags.Credential)
58 xmppPassword = Attribute("xmppPassword", "Xmpp Port",flags = Flags.Credential)
59 cls._register_attribute(channel)
60 cls._register_attribute(xmppSlice)
61 cls._register_attribute(xmppHost)
62 cls._register_attribute(xmppPort)
63 cls._register_attribute(xmppPassword)
65 def __init__(self, ec, guid):
67 :param ec: The Experiment controller
68 :type ec: ExperimentController
69 :param guid: guid of the RM
71 :param creds: Credentials to communicate with the rm (XmppClient for OMF)
75 super(OMFChannel, self).__init__(ec, guid)
77 self._nodes_guid = list()
81 self._logger = logging.getLogger("nepi.omf.omfChannel")
82 self._logger.setLevel(nepi.LOGLEVEL)
84 def _validate_connection(self, guid):
85 """Check if the connection is available.
87 :param guid: Guid of the current RM
92 rm = self.ec.get_resource(guid)
93 if rm.rtype() in self._authorized_connections:
94 msg = "Connection between %s %s and %s %s accepted" % (self.rtype(), self._guid, rm.rtype(), guid)
97 msg = "Connection between %s %s and %s %s refused" % (self.rtype(), self._guid, rm.rtype(), guid)
101 def _get_target(self, conn_set):
103 Get the couples (host, interface) that used this channel
105 :param conn_set: Connections of the current Guid
108 :return: self._nodes_guid
112 rm_iface = self.ec.get_resource(elt)
113 for conn in rm_iface.connections:
114 rm_node = self.ec.get_resource(conn)
115 if rm_node.rtype() == "OMFNode":
116 couple = [rm_node.get('hostname'), rm_iface.get('alias')]
118 self._nodes_guid.append(couple)
119 return self._nodes_guid
125 self._omf_api = OMFAPIFactory.get_api(self.get('xmppSlice'),
126 self.get('xmppHost'), self.get('xmppPort'), self.get('xmppPassword'))
128 if self.get('channel'):
129 set_nodes = self._get_target(self._connections)
131 for couple in set_nodes:
132 #print "Couple node/alias : " + couple[0] + " , " + couple[1]
133 attrval = self.get('channel')
134 attrname = "net/%s/%s" % (couple[1], 'channel')
135 #print "Send the configure message"
136 self._omf_api.configure(couple[0], attrname, attrval)
138 super(OMFChannel, self).deploy()
141 """ Discover the availables channels
147 """ Provision some availables channels
153 """Send Xmpp Message Using OMF protocol to configure Channel
157 super(OMFChannel, self).start()
160 """Send Xmpp Message Using OMF protocol to put down the interface
163 super(OMFChannel, self).stop()
166 """Clean the RM at the end of the experiment
169 OMFAPIFactory.release_api(self.get('xmppSlice'),
170 self.get('xmppHost'), self.get('xmppPort'), self.get('xmppPassword'))