-"""
- 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 as published by
- the Free Software Foundation, either version 3 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, see <http://www.gnu.org/licenses/>.
-
-"""
-
-from nepi.execution.resource import ResourceManager, clsinit
+#
+# 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 as published by
+# the Free Software Foundation, either version 3 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, see <http://www.gnu.org/licenses/>.
+#
+# Author: Alina Quereilhac <alina.quereilhac@inria.fr>
+# Julien Tribino <julien.tribino@inria.fr>
+
+
+from nepi.execution.resource import ResourceManager, clsinit, ResourceState, \
+ reschedule_delay
from nepi.execution.attribute import Attribute, Flags
from nepi.resources.omf.omf_api import OMFAPIFactory
-import nepi
-import logging
import time
+
@clsinit
class OMFNode(ResourceManager):
"""
"""
_rtype = "OMFNode"
_authorized_connections = ["OMFApplication" , "OMFWifiInterface"]
- _waiters = []
@classmethod
def _register_attributes(cls):
hostname = Attribute("hostname", "Hostname of the machine")
cpu = Attribute("cpu", "CPU of the node")
ram = Attribute("ram", "RAM of the node")
- xmppSlice = Attribute("xmppSlice","Name of the slice", flags = Flags.Credential)
- xmppHost = Attribute("xmppHost", "Xmpp Server",flags = Flags.Credential)
- xmppPort = Attribute("xmppPort", "Xmpp Port",flags = Flags.Credential)
- xmppPassword = Attribute("xmppPassword", "Xmpp Port",flags = Flags.Credential)
+ xmppSlice = Attribute("xmppSlice","Name of the slice",
+ flags = Flags.Credential)
+ xmppHost = Attribute("xmppHost", "Xmpp Server",
+ flags = Flags.Credential)
+ xmppPort = Attribute("xmppPort", "Xmpp Port",
+ flags = Flags.Credential)
+ xmppPassword = Attribute("xmppPassword", "Xmpp Port",
+ flags = Flags.Credential)
+
+ host = Attribute("host", "Hostname of the machine",
+ flags = Flags.Filter)
+ gateway = Attribute("gateway", "Gateway",
+ flags = Flags.Filter)
+ granularity = Attribute("granularity", "Granularity of the reservation time",
+ flags = Flags.Filter)
+ hardware_type = Attribute("hardware_type", "Hardware type of the machine",
+ flags = Flags.Filter)
+
cls._register_attribute(hostname)
cls._register_attribute(ram)
cls._register_attribute(cpu)
cls._register_attribute(xmppPort)
cls._register_attribute(xmppPassword)
- @classmethod
- def _register_filters(cls):
- """Register the filters of an OMF Node
-
- """
- hostname = Attribute("hostname", "Hostname of the machine")
- gateway = Attribute("gateway", "Gateway")
- granularity = Attribute("granularity", "Granularity of the reservation time")
- hardware_type = Attribute("hardware_type", "Hardware type of the machine")
- cls._register_filter(hostname)
- cls._register_filter(gateway)
- cls._register_filter(granularity)
- cls._register_filter(hardware_type)
+ cls._register_attribute(host)
+ cls._register_attribute(gateway)
+ cls._register_attribute(granularity)
+ cls._register_attribute(hardware_type)
# XXX: We don't necessary need to have the credentials at the
# moment we create the RM
: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
"""
super(OMFNode, self).__init__(ec, guid)
self._omf_api = None
- self._logger = logging.getLogger("nepi.omf.omfNode ")
-
- # XXX: TO DISCUSS
- self._logger.setLevel(nepi.LOGLEVEL)
-
- def _validate_connection(self, guid):
- """Check if the connection is available.
+ 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
"""
rm = self.ec.get_resource(guid)
if rm.rtype() in self._authorized_connections:
- self._logger.debug("Connection between %s %s and %s %s accepted" %
- (self.rtype(), self._guid, rm.rtype(), guid))
+ msg = "Connection between %s %s and %s %s accepted" % (
+ self.rtype(), self._guid, rm.rtype(), guid)
+ self.debug(msg)
+
return True
- self._logger.debug("Connection between %s %s and %s %s refused" %
- (self.rtype(), self._guid, rm.rtype(), guid))
+
+ msg = "Connection between %s %s and %s %s refused" % (
+ self.rtype(), self._guid, rm.rtype(), guid)
+ self.debug(msg)
+
return False
- def deploy_action(self):
- """Deploy the RM
+ def deploy(self):
+ """ Deploy the RM. It means : Send Xmpp Message Using OMF protocol
+ to enroll the node into the experiment.
+ It becomes DEPLOYED after sending messages to enroll the node
"""
- self._omf_api = OMFAPIFactory.get_api(self.get('xmppSlice'),
- self.get('xmppHost'), self.get('xmppPort'), self.get('xmppPassword'))
- self._omf_api.enroll_host(self.get('hostname'))
-
- super(OMFNode, self).deploy_action()
+ if not self._omf_api:
+ self._omf_api = OMFAPIFactory.get_api(self.get('xmppSlice'),
+ self.get('xmppHost'), self.get('xmppPort'),
+ self.get('xmppPassword'), exp_id = self.ec.exp_id)
+
+ if not self._omf_api:
+ msg = "Credentials are not initialzed. XMPP Connections impossible"
+ self.error(msg)
+ self.fail()
+ return
+
+ if not self.get('hostname'):
+ msg = "Hostname's value is not initialized"
+ self.error(msg)
+ self.fail()
+ return
+
+ try:
+ self._omf_api.enroll_host(self.get('hostname'))
+ except AttributeError:
+ msg = "Credentials are not initialzed. XMPP Connections impossible"
+ self.error(msg)
+ self.fail()
+ return
+
+ super(OMFNode, self).deploy()
def discover(self):
""" Discover the availables nodes
pass
def start(self):
- """Send Xmpp Message Using OMF protocol to enroll the node into the experiment
+ """Start the RM. It means nothing special for an interface for now
+ It becomes STARTED as soon as this method starts.
"""
super(OMFNode, self).start()
-
def stop(self):
- """Send Xmpp Message Using OMF protocol to disconnect the node
+ """Stop the RM. It means nothing special for an interface for now
+ It becomes STOPPED as soon as this method stops
"""
super(OMFNode, self).stop()
"""Clean the RM at the end of the experiment
"""
- self._omf_api.release(self.get('hostname'))
- OMFAPIFactory.release_api(self.get('xmppSlice'),
- self.get('xmppHost'), self.get('xmppPort'), self.get('xmppPassword'))
-
-
- def configure(self):
- #routes = self.tc._add_route.get(self.guid, [])
- #iface_guids = self.tc.get_connected(self.guid, "devs", "node")
-
- for route in routes:
- (destination, netprefix, nexthop, metric, device) = route
- netmask = ipaddr2.ipv4_mask2dot(netprefix)
-
- # Validate that the interface is associated to the node
- for iface_guid in iface_guids:
- iface = self.tc.elements.get(iface_guid)
- if iface.devname == device:
- self._omf_api.execute(self.get('hostname'),
- "Id#%s" % str(random.getrandbits(128)),
- "add -net %s netmask %s dev %s" % (destination, netmask, iface.devname),
- "/sbin/route", # path
- None, # env
- )
- break
+ if self._omf_api:
+ self._omf_api.release(self.get('hostname'))
+
+ OMFAPIFactory.release_api(self.get('xmppSlice'),
+ self.get('xmppHost'), self.get('xmppPort'),
+ self.get('xmppPassword'), exp_id = self.ec.exp_id)
+
+ super(OMFNode, self).release()
+