rename src/nepi/ into just nepi/

[nepi.git] / nepi / resources / ns3 / ns3application.py

diff --git a/nepi/resources/ns3/ns3application.py b/nepi/resources/ns3/ns3application.py
new file mode 100644 (file)
index 0000000..681e1a1
--- /dev/null
+++ b/nepi/resources/ns3/ns3application.py
@@ -0,0 +1,90 @@
+#
+#    NEPI, a framework to manage network experiments
+#    Copyright (C) 2014 INRIA
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 2 as
+#    published by the Free Software Foundation;
+#
+#    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>
+
+from nepi.execution.resource import clsinit_copy, ResourceState
+from nepi.resources.ns3.ns3base import NS3Base
+
+@clsinit_copy
+class NS3BaseApplication(NS3Base):
+    _rtype = "abstract::ns3::Application"
+
+    def __init__(self, ec, guid):
+        super(NS3BaseApplication, self).__init__(ec, guid)
+        self._node = None
+ 
+    @property
+    def node(self):
+        if not self._node:
+            from nepi.resources.ns3.ns3node import NS3BaseNode
+            nodes = self.get_connected(NS3BaseNode.get_rtype())
+
+            if not nodes: 
+                msg = "Application not connected to node"
+                self.error(msg)
+                raise RuntimeError(msg)
+
+            self._node = nodes[0]
+
+        return self._node
+
+    @property
+    def _rms_to_wait(self):
+        rms = set()
+        rms.add(self.node)
+        return rms
+
+    def _connect_object(self):
+        node = self.node
+        if node.uuid not in self.connected:
+            self.simulation.invoke(node.uuid, "AddApplication", self.uuid)
+            self._connected.add(node.uuid)
+
+    def do_stop(self):
+        if self.state == ResourceState.STARTED:
+            # No need to do anything, simulation.Destroy() will stop every object
+            self.info("Stopping command '%s'" % command)
+            self.simulation.invoke(self.uuid, "Stop")
+            self.set_stopped()
+
+    def do_start(self):
+        if self.simulation.state < ResourceState.STARTED:
+            self.debug("---- RESCHEDULING START ----" )
+            self.ec.schedule(self.reschedule_delay, self.start)
+        else:
+            super(NS3BaseApplication, self).do_start()
+            self._start_time = self.simulation.start_time
+
+    @property
+    def state(self):
+        if self._state == ResourceState.STARTED:
+            try:
+                is_running = self.simulation.invoke(self.uuid, "isAppRunning")
+                
+                if not is_running:
+                    self.set_stopped()
+            except:
+                msg = "Application failed. Can not retrieve state"
+                out = ""
+
+                import traceback
+                err = traceback.format_exc()
+                self.error(msg, out, err)
+                self.do_fail()
+
+        return self._state
+