# Author: Alina Quereilhac <alina.quereilhac@inria.fr>
# Julien Tribino <julien.tribino@inria.fr>
-
-from nepi.execution.resource import ResourceManager, clsinit, ResourceState
+from nepi.execution.resource import ResourceManager, clsinit_copy, \
+ ResourceState, reschedule_delay, failtrap
from nepi.execution.attribute import Attribute, Flags
-
+from nepi.resources.omf.omf_resource import ResourceGateway, OMFResource
from nepi.resources.omf.omf_api import OMFAPIFactory
import time
-reschedule_delay = "0.5s"
-
-@clsinit
-class OMFNode(ResourceManager):
+@clsinit_copy
+class OMFNode(OMFResource):
"""
.. class:: Class Args :
"""
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)
-
- 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(xmppSlice)
- cls._register_attribute(xmppHost)
- cls._register_attribute(xmppPort)
- cls._register_attribute(xmppPassword)
-
- 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
- # XXX: TO DISCUSS
+ @property
+ def exp_id(self):
+ return self.ec.exp_id
- 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:
- msg = "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
- msg = "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
+ @failtrap
def deploy(self):
- """Deploy the RM
+ """ 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
"""
if not self._omf_api :
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()
-
- def discover(self):
- """ Discover the availables nodes
+ self.get('xmppHost'), self.get('xmppPort'),
+ self.get('xmppPassword'), exp_id = self.exp_id)
- """
- pass
-
- def provision(self):
- """ Provision some availables nodes
+ if not self._omf_api :
+ msg = "Credentials are not initialzed. XMPP Connections impossible"
+ self.error(msg)
+ raise RuntimeError, msg
+
+ if not self.get('hostname') :
+ msg = "Hostname's value is not initialized"
+ self.error(msg)
+ raise RuntimeError, msg
+
+ try:
+ self._omf_api.enroll_host(self.get('hostname'))
+ except AttributeError:
+ msg = "Credentials are not initialzed. XMPP Connections impossible"
+ self.error(msg)
+ raise
- """
- pass
+ super(OMFNode, self).deploy()
- def start(self):
- """Send Xmpp Message Using OMF protocol to enroll the node into the experiment
+ def release(self):
+ """Clean the RM at the end of the experiment
"""
- super(OMFNode, self).start()
+ try:
+ 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.exp_id)
+ except:
+ import traceback
+ err = traceback.format_exc()
+ self.error(err)
- def stop(self):
- """Send Xmpp Message Using OMF protocol to disconnect the node
+ super(OMFNode, self).release()
- """
- super(OMFNode, self).stop()
-
- def release(self):
- """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