-"""
- 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, ResourceState
+#
+# 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_copy, \
+ ResourceState, reschedule_delay
from nepi.execution.attribute import Attribute, Flags
+from nepi.resources.omf.omf_resource import ResourceGateway, OMFResource
+from nepi.resources.omf.node import OMFNode
from nepi.resources.omf.omf_api import OMFAPIFactory
-reschedule_delay = "0.5s"
-
-@clsinit
-class OMFApplication(ResourceManager):
+@clsinit_copy
+class OMFApplication(OMFResource):
"""
.. class:: Class Args :
.. 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")
path = Attribute("path", "Path of the application")
args = Attribute("args", "Argument of the application")
env = Attribute("env", "Environnement variable of the application")
- 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)
+ stdin = Attribute("stdin", "Input of the application", default = "")
cls._register_attribute(appid)
cls._register_attribute(path)
cls._register_attribute(args)
cls._register_attribute(env)
- cls._register_attribute(xmppSlice)
- cls._register_attribute(xmppHost)
- cls._register_attribute(xmppPort)
- cls._register_attribute(xmppPassword)
-
+ cls._register_attribute(stdin)
def __init__(self, ec, guid):
"""
:type creds: dict
"""
-
super(OMFApplication, self).__init__(ec, guid)
self.set('appid', "")
self._omf_api = None
- def _validate_connection(self, guid):
- """Check if the connection is available.
+ self.add_set_hook()
+
+ @property
+ def exp_id(self):
+ return self.ec.exp_id
+
+ @property
+ def node(self):
+ rm_list = self.get_connected(OMFNode.rtype())
+ if rm_list: return rm_list[0]
+ return None
+
+ def stdin_hook(self, old_value, new_value):
+ self._omf_api.send_stdin(self.node.get('hostname'), new_value, self.get('appid'))
+ return new_value
- :param guid: Guid of the current RM
+ def add_set_hook(self):
+ attr = self._attrs["stdin"]
+ attr.set_hook = self.stdin_hook
+
+ 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 RM it will be connected
:type guid: int
:rtype: Boolean
"""
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" % (self.rtype(), self._guid, rm.rtype(), guid)
+ 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 : Already Connected" % (self.rtype(), self._guid, rm.rtype(), guid)
+ 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
- def deploy(self):
- """Deploy the RM
+ def do_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.
"""
- self._omf_api = OMFAPIFactory.get_api(self.get('xmppSlice'),
- self.get('xmppHost'), self.get('xmppPort'), self.get('xmppPassword'))
- super(OMFApplication, self).deploy()
+ 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)
+ raise RuntimeError, msg
+
+ super(OMFApplication, self).do_deploy()
- def start(self):
- """Send Xmpp Message Using OMF protocol to execute the application
+ def do_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)
"""
- super(OMFApplication, self).start()
- msg = " " + self.rtype() + " ( Guid : " + str(self._guid) +") : " + self.get('appid') + " : " + self.get('path') + " : " + self.get('args') + " : " + self.get('env')
+ if not (self.get('appid') and self.get('path')) :
+ msg = "Application's information are not initialized"
+ self.error(msg)
+ raise RuntimeError, msg
+
+ if not self.get('args'):
+ self.set('args', " ")
+ if not self.get('env'):
+ self.set('env', " ")
+
+ # Some information to check the information in parameter
+ msg = " " + self.rtype() + " ( Guid : " + str(self._guid) +") : " + \
+ self.get('appid') + " : " + self.get('path') + " : " + \
+ self.get('args') + " : " + self.get('env')
self.info(msg)
- if self.get('appid') and self.get('path') and self.get('args') and self.get('env'):
- rm_list = self.get_connected("OMFNode")
- for rm_node in rm_list:
- self._omf_api.execute(rm_node.get('hostname'),self.get('appid'), self.get('args'), self.get('path'), self.get('env'))
- else :
- msg = "Credentials are not initialized"
+ try:
+ self._omf_api.execute(self.node.get('hostname'),self.get('appid'), \
+ self.get('args'), self.get('path'), self.get('env'))
+ except AttributeError:
+ msg = "Credentials are not initialzed. XMPP Connections impossible"
self.error(msg)
+ raise
- def stop(self):
- """Send Xmpp Message Using OMF protocol to kill the application
+ super(OMFApplication, self).do_start()
+
+ def do_stop(self):
+ """ 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:
+ msg = "Credentials were not initialzed. XMPP Connections impossible"
+ self.error(msg)
+ raise
- rm_list = self.get_connected("OMFNode")
- for rm_node in rm_list :
- self._omf_api.exit(rm_node.get('hostname'),self.get('appid'))
- super(OMFApplication, self).stop()
- self._state = ResourceState.FINISHED
-
+ super(OMFApplication, self).do_stop()
- def release(self):
- """Clean the RM at the end of the experiment
+ def do_release(self):
+ """ 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(OMFApplication, self).do_release()
git://git.onelab.eu / nepi.git / blobdiff