-"""
- 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.node import OMFNode
+from nepi.resources.omf.channel import OMFChannel
from nepi.resources.omf.omf_api import OMFAPIFactory
-import nepi
-import logging
-
@clsinit
class OMFWifiInterface(ResourceManager):
"""
.. note::
- This class is used only by the Experiment Controller through the Resource Factory
+ This class is used only by the Experiment Controller through the Resource
+ Factory
"""
_rtype = "OMFWifiInterface"
_authorized_connections = ["OMFNode" , "OMFChannel"]
- _waiters = ["OMFNode"]
#alias2name = dict({'w0':'wlan0', 'w1':'wlan1'})
self._omf_api = None
self._alias = self.get('alias')
- self._logger = logging.getLogger("nepi.omf.omfIface ")
- 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))
- return False
- def _get_nodes(self, conn_set):
- """ Get the RM of the node to which the application is connected
+ msg = "Connection between %s %s and %s %s refused" % \
+ (self.rtype(), self._guid, rm.rtype(), guid)
+ self.debug(msg)
- :param conn_set: Connections of the current Guid
- :type conn_set: set
- :rtype: ResourceManager
+ return False
- """
- for elt in conn_set:
- rm = self.ec.get_resource(elt)
- if rm.rtype() == "OMFNode":
- return rm
+ @property
+ def node(self):
+ rm_list = self.get_connected(OMFNode.rtype())
+ if rm_list: return rm_list[0]
return None
- def deploy_action(self):
- """Deploy the RM
+ @property
+ def channel(self):
+ rm_list = self.get_connected(OMFChannel.rtype())
+ if rm_list: return rm_list[0]
+ return None
+
+
+ def configure_iface(self):
+ """ Configure the interface without the ip
"""
- self._omf_api = OMFAPIFactory.get_api(self.get('xmppSlice'),
- self.get('xmppHost'), self.get('xmppPort'), self.get('xmppPassword'))
+ if self.node.state < ResourceState.READY:
+ self.ec.schedule(reschedule_delay, self.deploy)
+ return False
- self._logger.debug(" " + self.rtype() + " ( Guid : " + str(self._guid) +") : " +
- self.get('mode') + " : " + self.get('type') + " : " +
- self.get('essid') + " : " + self.get('ip'))
- #try:
- if self.get('mode') and self.get('type') and self.get('essid') and self.get('ip'):
- rm_node = self._get_nodes(self._connections)
- for attrname in ["mode", "type", "essid", "ip"]:
+ try :
+ for attrname in ["mode", "type", "essid"]:
attrval = self.get(attrname)
attrname = "net/%s/%s" % (self._alias, attrname)
- #print "Send the configure message"
- self._omf_api.configure(rm_node.get('hostname'), attrname, attrval)
-
- super(OMFWifiInterface, self).deploy_action()
-
-
- def start(self):
- """Send Xmpp Messages Using OMF protocol to configure Interface
+ self._omf_api.configure(self.node.get('hostname'), attrname,
+ attrval)
+ except AttributeError:
+ self._state = ResourceState.FAILED
+ msg = "Credentials are not initialzed. XMPP Connections impossible"
+ self.debug(msg)
+ #raise
+
+ super(OMFWifiInterface, self).provision()
+ return True
+
+ def configure_ip(self):
+ """ Configure the ip of the interface
"""
-
- super(OMFWifiInterface, self).start()
-
- def stop(self):
- """Send Xmpp Message Using OMF protocol to put down the interface
-
+ if self.channel.state < ResourceState.READY:
+ self.ec.schedule(reschedule_delay, self.deploy)
+ return False
+
+ try :
+ attrval = self.get("ip")
+ attrname = "net/%s/%s" % (self._alias, "ip")
+ self._omf_api.configure(self.node.get('hostname'), attrname,
+ attrval)
+ except AttributeError:
+ msg = "Credentials are not initialzed. XMPP Connections impossible"
+ self.debug(msg)
+ self.fail()
+ #raise
+
+ return True
+
+ def deploy(self):
+ """ Deploy the RM. It means : Get the xmpp client and send messages
+ using OMF 5.4 protocol to configure the interface.
+ It becomes DEPLOYED after sending messages to configure the interface
"""
- super(OMFWifiInterface, self).stop()
+ 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('mode') and self.get('type') and self.get('essid') \
+ and self.get('ip')):
+ msg = "Interface's variable are not initialized"
+ self.error(msg)
+ self.fail()
+ return False
+
+ if not self.node.get('hostname') :
+ msg = "The channel is connected with an undefined node"
+ self.error(msg)
+ self.fail()
+ return False
+
+ # Just for information
+ self.debug(" " + self.rtype() + " ( Guid : " + str(self._guid) +") : " + \
+ self.get('mode') + " : " + self.get('type') + " : " + \
+ self.get('essid') + " : " + self.get('ip'))
+
+ # Check if the node is already deployed
+ chk1 = True
+ if self.state < ResourceState.PROVISIONED:
+ chk1 = self.configure_iface()
+ if chk1:
+ chk2 = self.configure_ip()
+
+ if not (chk1 and chk2) :
+ return False
+
+ super(OMFWifiInterface, self).deploy()
+ return True
def release(self):
- """Clean the RM at the end of the experiment
+ """ Clean the RM at the end of the experiment and release the API
"""
- OMFAPIFactory.release_api(self.get('xmppSlice'),
- self.get('xmppHost'), self.get('xmppPort'), self.get('xmppPassword'))
+ if self._omf_api :
+ OMFAPIFactory.release_api(self.get('xmppSlice'),
+ self.get('xmppHost'), self.get('xmppPort'),
+ self.get('xmppPassword'), exp_id = self.ec.exp_id)
+ super(OMFWifiInterface, self).release()
git://git.onelab.eu / nepi.git / blobdiff