.. 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 = "OMFApplication"
@classmethod
def _register_attributes(cls):
- """Register the attributes of an OMF application
+ """ Register the attributes of an OMF application
+
"""
appid = Attribute("appid", "Name of the application")
:type creds: dict
"""
-
super(OMFApplication, self).__init__(ec, guid)
self.set('appid', "")
self._omf_api = None
- @property
- def exp_id(self):
- if self.ec.exp_id.startswith('exp-'):
- return None
- return self.ec.exp_id
-
@property
def node(self):
rm_list = self.get_connected(OMFNode.rtype())
return None
def valid_connection(self, guid):
- """Check if the connection with the guid in parameter is possible. Only meaningful connections are allowed.
+ """ Check if the connection with the guid in parameter is possible.
+ Only meaningful connections are allowed.
:param guid: Guid of RM it will be connected
:type guid: int
"""
rm = self.ec.get_resource(guid)
if rm.rtype() not in self._authorized_connections:
- msg = "Connection between %s %s and %s %s refused : An Application can be connected only to a Node" %\
+ msg = ("Connection between %s %s and %s %s refused: "
+ "An Application can be connected only to a Node" ) % \
(self.rtype(), self._guid, rm.rtype(), guid)
self.debug(msg)
+
return False
+
elif len(self.connections) != 0 :
- msg = "Connection between %s %s and %s %s refused : This Application is already connected" % \
+ msg = ("Connection between %s %s and %s %s refused: "
+ "This Application is already connected" ) % \
(self.rtype(), self._guid, rm.rtype(), guid)
self.debug(msg)
+
return False
+
else :
- 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
-
+ return True
def deploy(self):
- """Deploy the RM. It means nothing special for an application for now (later it will be upload sources, ...)
- It becomes DEPLOYED after getting the xmpp client.
+ """ Deploy the RM. It means nothing special for an application
+ for now (later it will be upload sources, ...)
+ It becomes DEPLOYED after getting the xmpp client.
+
"""
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)
+ self.get('xmppHost'), self.get('xmppPort'),
+ self.get('xmppPassword'), exp_id = self.ec.exp_id)
if not self._omf_api :
- self._state = ResourceState.FAILED
msg = "Credentials are not initialzed. XMPP Connections impossible"
self.error(msg)
+ self.fail()
return
super(OMFApplication, self).deploy()
def start(self):
- """Start the RM. It means : Send Xmpp Message Using OMF protocol to execute the application
- It becomes STARTED before the messages are sent (for coordination)
+ """ Start the RM. It means : Send Xmpp Message Using OMF protocol
+ to execute the application.
+ It becomes STARTED before the messages are sent (for coordination)
"""
if not (self.get('appid') and self.get('path')) :
- self._state = ResourceState.FAILED
msg = "Application's information are not initialized"
self.error(msg)
+ self.fail()
return
if not self.get('args'):
self._omf_api.execute(self.node.get('hostname'),self.get('appid'), \
self.get('args'), self.get('path'), self.get('env'))
except AttributeError:
- self._state = ResourceState.FAILED
msg = "Credentials are not initialzed. XMPP Connections impossible"
self.error(msg)
+ self.fail()
raise
-
super(OMFApplication, self).start()
-
def stop(self):
- """Stop the RM. It means : Send Xmpp Message Using OMF protocol to kill the application
- It becomes STOPPED after the message is sent.
+ """ Stop the RM. It means : Send Xmpp Message Using OMF protocol to
+ kill the application.
+ State is set to STOPPED after the message is sent.
"""
try:
self._omf_api.exit(self.node.get('hostname'),self.get('appid'))
except AttributeError:
- self._state = ResourceState.FAILED
msg = "Credentials were not initialzed. XMPP Connections impossible"
self.error(msg)
- #raise
+ self.fail()
+ return
super(OMFApplication, self).stop()
- self._state = ResourceState.FINISHED
-
def release(self):
- """Clean the RM at the end of the experiment and release the API.
+ """ Clean the RM at the end of the experiment and release the API.
"""
if self._omf_api :
OMFAPIFactory.release_api(self.get('xmppSlice'),
- self.get('xmppHost'), self.get('xmppPort'), self.get('xmppPassword'), exp_id = self.exp_id)
+ self.get('xmppHost'), self.get('xmppPort'),
+ self.get('xmppPassword'), exp_id = self.ec.exp_id)
super(OMFApplication, self).release()