--- /dev/null
+#
+# NEPI, a framework to manage network experiments
+# Copyright (C) 2013 INRIA
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation;
+#
+# 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, see <http://www.gnu.org/licenses/>.
+#
+# Author: Alina Quereilhac <alina.quereilhac@inria.fr>
+# Julien Tribino <julien.tribino@inria.fr>
+
+from nepi.util.timefuncs import tnow
+from nepi.execution.resource import ResourceManager, clsinit_copy, \
+ ResourceState
+from nepi.execution.attribute import Attribute, Flags
+from nepi.resources.omf.omf_resource import ResourceGateway, OMFResource
+from nepi.resources.omf.omf_api_factory import OMFAPIFactory
+
+import time
+
+reschedule_check = "1s"
+confirmation_counter = 3600
+
+@clsinit_copy
+class OMFNode(OMFResource):
+ """
+ .. class:: Class Args :
+
+ :param ec: The Experiment controller
+ :type ec: ExperimentController
+ :param guid: guid of the RM
+ :type guid: int
+ :param creds: Credentials to communicate with the rm (XmppClient for OMF)
+ :type creds: dict
+
+ """
+ _rtype = "omf::Node"
+ _authorized_connections = ["omf::Application" , "omf::WifiInterface"]
+
+ @classmethod
+ def _register_attributes(cls):
+ """Register the attributes of an OMF Node
+
+ """
+ hostname = Attribute("hostname", "Hostname of the machine")
+
+ cls._register_attribute(hostname)
+
+ # XXX: We don't necessary need to have the credentials at the
+ # moment we create the RM
+ def __init__(self, ec, guid):
+ """
+ :param ec: The Experiment controller
+ :type ec: ExperimentController
+ :param guid: guid of the RM
+ :type guid: int
+
+ """
+ super(OMFNode, self).__init__(ec, guid)
+
+ self._omf_api = None
+
+ # For performance tests
+ self.perf = True
+ self.begin_deploy_time = None
+
+
+ @property
+ def exp_id(self):
+ return self.ec.exp_id
+
+ def valid_connection(self, guid):
+ """ Check if the connection with the guid in parameter is possible.
+ Only meaningful connections are allowed.
+
+ :param guid: Guid of the current RM
+ :type guid: int
+ :rtype: Boolean
+
+ """
+ rm = self.ec.get_resource(guid)
+ if rm.get_rtype() in self._authorized_connections:
+ msg = "Connection between %s %s and %s %s accepted" % (
+ self.get_rtype(), self._guid, rm.get_rtype(), guid)
+ self.debug(msg)
+ return True
+
+ msg = "Connection between %s %s and %s %s refused" % (
+ self.get_rtype(), self._guid, rm.get_rtype(), guid)
+ self.error(msg)
+
+ return False
+
+ def do_deploy(self):
+ """ Deploy the RM. It means : Send Xmpp Message Using OMF protocol
+ to enroll the node into the experiment.
+
+ """
+ ## For performance test
+ if self.perf:
+ self.begin_deploy_time = tnow()
+ self.perf = False
+
+ if not self.get('xmppServer'):
+ msg = "XmppServer is not initialzed. XMPP Connections impossible"
+ self.error(msg)
+ raise RuntimeError(msg)
+
+ if not self.get('version'):
+ msg = "Version of OMF is not indicated"
+ self.error(msg)
+ raise RuntimeError(msg)
+
+ if not (self.get('xmppUser') or self.get('xmppPort')
+ or self.get('xmppPassword')):
+ msg = "Credentials are not all initialzed. Default values will be used"
+ self.warn(msg)
+
+ if not self._omf_api :
+ self._omf_api = OMFAPIFactory.get_api(self.get('version'),
+ self.get('xmppServer'), self.get('xmppUser'), self.get('xmppPort'),
+ self.get('xmppPassword'), exp_id = self.exp_id)
+
+ if not self.get('hostname') :
+ msg = "Hostname's value is not initialized"
+ self.error(msg)
+ raise RuntimeError(msg)
+
+ if self.get('version') == "5":
+ self._omf_api.enroll_host(self.get('hostname'))
+ else:
+ self._omf_api.enroll_topic(self.get('hostname'))
+
+ super(OMFNode, self).do_deploy()
+
+ def do_release(self):
+ """ Clean the RM at the end of the experiment by unenrolling
+ the node from the topic
+
+ """
+ from nepi.resources.omf.application import OMFApplication
+ rm_list = self.get_connected(OMFApplication.get_rtype())
+ if rm_list:
+ for rm in rm_list:
+ if rm.state < ResourceState.RELEASED:
+ self.ec.schedule(self.reschedule_delay, self.release)
+ return
+
+ from nepi.resources.omf.interface import OMFWifiInterface
+ rm_list = self.get_connected(OMFWifiInterface.get_rtype())
+ if rm_list:
+ for rm in rm_list:
+ if rm.state < ResourceState.RELEASED:
+ self.ec.schedule(self.reschedule_delay, self.release)
+ return
+
+ if self._omf_api:
+ if self.get('version') == "5":
+ self._omf_api.release(self.get('hostname'))
+ else:
+ self._omf_api.unenroll_topic(self.get('hostname'))
+
+ OMFAPIFactory.release_api(self.get('version'),
+ self.get('xmppServer'), self.get('xmppUser'), self.get('xmppPort'),
+ self.get('xmppPassword'), exp_id = self.exp_id)
+
+ super(OMFNode, self).do_release()
+
git://git.onelab.eu / nepi.git / blobdiff