# 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.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
-
-@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
self._omf_api = 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.
return False
+ @failtrap
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
"""
- if not self._omf_api:
+ 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)
+ self.get('xmppPassword'), exp_id = self.exp_id)
- if not self._omf_api:
+ if not self._omf_api :
msg = "Credentials are not initialzed. XMPP Connections impossible"
self.error(msg)
- self.fail()
- return
+ raise RuntimeError, msg
- if not self.get('hostname'):
+ if not self.get('hostname') :
msg = "Hostname's value is not initialized"
self.error(msg)
- self.fail()
- return
+ 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)
- self.fail()
- return
+ raise
super(OMFNode, self).deploy()
- def discover(self):
- """ Discover the availables nodes
-
- """
- pass
-
- def provision(self):
- """ Provision some availables nodes
-
- """
- pass
-
- def start(self):
- """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):
- """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()
-
def release(self):
"""Clean the RM at the end of the experiment
"""
- 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)
+ 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)
super(OMFNode, self).release()