# 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, ResourceState, \
+ reschedule_delay
from nepi.execution.attribute import Attribute, Flags
from nepi.resources.omf.omf_api import OMFAPIFactory
-reschedule_delay = "0.5s"
@clsinit
class OMFChannel(ResourceManager):
_rtype = "OMFChannel"
_authorized_connections = ["OMFWifiInterface", "OMFNode"]
-
@classmethod
def _register_attributes(cls):
"""Register the attributes of an OMF channel
+
"""
channel = Attribute("channel", "Name of the application")
xmppSlice = Attribute("xmppSlice","Name of the slice", flags = Flags.Credential)
self._omf_api = None
- def _validate_connection(self, guid):
- """Check if the connection is available.
+ @property
+ def exp_id(self):
+ if self.ec.exp_id.startswith('exp-'):
+ return None
+ 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
"""
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
def _get_target(self, conn_set):
"""
- Get the couples (host, interface) that used this channel
+ Get the couples (host, interface) that uses this channel
:param conn_set: Connections of the current Guid
:type conn_set: set
:return: self._nodes_guid
"""
+ res = []
for elt in conn_set:
rm_iface = self.ec.get_resource(elt)
for conn in rm_iface.connections:
rm_node = self.ec.get_resource(conn)
- if rm_node.rtype() == "OMFNode":
- if rm_iface.state < ResourceState.READY or rm_node.state < ResourceState.READY:
+ if rm_node.rtype() == "OMFNode" and rm_node.get('hostname'):
+ if rm_iface.state < ResourceState.PROVISIONED or \
+ rm_node.state < ResourceState.READY:
return "reschedule"
couple = [rm_node.get('hostname'), rm_iface.get('alias')]
#print couple
- self._nodes_guid.append(couple)
- return self._nodes_guid
-
- def deploy(self):
- """Deploy the RM
-
- """
- if not self._omf_api :
- self._omf_api = OMFAPIFactory.get_api(self.get('xmppSlice'),
- self.get('xmppHost'), self.get('xmppPort'), self.get('xmppPassword'))
-
- if self.get('channel'):
- set_nodes = self._get_target(self._connections)
- if set_nodes == "reschedule" :
- self.ec.schedule(reschedule_delay, self.deploy)
- return
- print set_nodes
- for couple in set_nodes:
- #print "Couple node/alias : " + couple[0] + " , " + couple[1]
- attrval = self.get('channel')
- attrname = "net/%s/%s" % (couple[1], 'channel')
- self._omf_api.configure(couple[0], attrname, attrval)
-
- super(OMFChannel, self).deploy()
+ res.append(couple)
+ return res
def discover(self):
""" Discover the availables channels
"""
pass
+ def deploy(self):
+ """ Deploy the RM. It means : Get the xmpp client and send messages
+ using OMF 5.4 protocol to configure the channel.
+ It becomes DEPLOYED after sending messages to configure the channel
+
+ """
+ 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.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('channel'):
+ msg = "Channel's value is not initialized"
+ self.error(msg)
+ self.fail()
+ return
+
+ self._nodes_guid = self._get_target(self._connections)
+ if self._nodes_guid == "reschedule" :
+ self.ec.schedule("2s", self.deploy)
+ return False
+
+ try:
+ for couple in self._nodes_guid:
+ #print "Couple node/alias : " + couple[0] + " , " + couple[1]
+ attrval = self.get('channel')
+ attrname = "net/%s/%s" % (couple[1], 'channel')
+ self._omf_api.configure(couple[0], attrname, attrval)
+ except AttributeError:
+ msg = "Credentials are not initialzed. XMPP Connections impossible"
+ self.error(msg)
+ self.fail()
+ return
+
+ super(OMFChannel, self).deploy()
+
def start(self):
- """Send Xmpp Message Using OMF protocol to configure Channel
+ """ Start the RM. It means nothing special for a channel for now
+ It becomes STARTED as soon as this method starts.
"""
super(OMFChannel, self).start()
def stop(self):
- """Send Xmpp Message Using OMF protocol to put down the interface
+ """ Stop the RM. It means nothing special for a channel for now
+ It becomes STOPPED as soon as this method is called
"""
super(OMFChannel, self).stop()
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.exp_id)
+
+ super(OMFChannel, self).release()
git://git.onelab.eu / nepi.git / blobdiff