Adding CCNFIBEntry RM

diff --git a/src/nepi/resources/linux/ccn/fibentry.py b/src/nepi/resources/linux/ccn/fibentry.py
new file mode 100644 (file)
index 0000000..c669858
--- /dev/null
+++ b/src/nepi/resources/linux/ccn/fibentry.py
@@ -0,0 +1,155 @@
+#
+#    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>
+
+from nepi.execution.attribute import Attribute, Flags, Types
+from nepi.execution.trace import Trace, TraceAttr
+from nepi.execution.resource import clsinit_copy, ResourceState, \
+    ResourceAction
+from nepi.resources.linux.ccn.ccnapplication import LinuxCCNApplication
+from nepi.util.timefuncs import tnow
+
+import os
+
+reschedule_delay = "0.5s"
+
+# TODO: Add rest of options for ccndc!!!
+#       Implement ENTRY DELETE!!
+
+@clsinit_copy
+class LinuxFIBEntry(LinuxCCNApplication):
+    _rtype = "LinuxFIBEntry"
+
+    @classmethod
+    def _register_attributes(cls):
+        uri = Attribute("uri",
+                "URI prefix to match and route for this FIB entry",
+                default = "ccnx:/",
+                flags = Flags.ExecReadOnly)
+
+        protocol = Attribute("protocol",
+                "Transport protocol used in network connection to peer "
+                "for this FIB entry. One of 'udp' or 'tcp'.",
+                type = Types.Enumerate, 
+                default = "udp",
+                allowed = ["udp", "tcp"],
+                flags = Flags.ExecReadOnly)
+
+        host = Attribute("host",
+                "Peer host used in network connection for this FIB entry. ",
+                flags = Flags.ExecReadOnly)
+
+        port = Attribute("port",
+                "Peer port address used in network connection to peer "
+                "for this FIB entry.",
+                flags = Flags.ExecReadOnly)
+
+        cls._register_attribute(uri)
+        cls._register_attribute(protocol)
+        cls._register_attribute(host)
+        cls._register_attribute(port)
+
+    def __init__(self, ec, guid):
+        super(LinuxFIBEntry, self).__init__(ec, guid)
+        self._home = "fib-%s" % self.guid
+
+    def deploy(self):
+        # Wait until associated ccnd is provisioned
+        if not self.ccnd or self.ccnd.state < ResourceState.READY:
+            # ccnr needs to wait until ccnd is deployed and running
+            self.ec.schedule(reschedule_delay, self.deploy)
+        else:
+            command = self._start_command
+            env = self._environment
+
+            self.set("command", command)
+            self.set("env", env)
+
+            self.info("Deploying command '%s' " % command)
+
+            self.node.mkdir(self.app_home)
+            self.execute_command(command, env)
+
+            self.debug("----- READY ---- ")
+            self._ready_time = tnow()
+            self._state = ResourceState.READY
+
+    def start(self):
+        if self._state in [ResourceState.READY, ResourceState.STARTED]:
+            command = self.get("command")
+            self.info("Starting command '%s'" % command)
+
+            self._start_time = tnow()
+            self._state = ResourceState.STARTED
+        else:
+            msg = " Failed to execute command '%s'" % command
+            self.error(msg, out, err)
+            self._state = ResourceState.FAILED
+            raise RuntimeError, msg
+
+    def stop(self):
+        command = self.get('command')
+        env = self.get('env')
+        
+        if self.state == ResourceState.STARTED:
+            self.info("Stopping command '%s'" % command)
+
+            command = self._stop_command
+            self.execute_command(command, env)
+
+            self._stop_time = tnow()
+            self._state = ResourceState.STOPPED
+
+    @property
+    def state(self):
+        return self._state
+
+    @property
+    def _start_command(self):
+        uri = self.get("uri") or ""
+        protocol = self.get("protocol") or ""
+        host = self.get("host") or ""
+        port = self.get("port") or ""
+
+        # add ccnx:/example.com/ udp 224.0.0.204 52428
+        return "ccndc add %(uri)s %(protocol)s %(host)s %(port)s" % ({
+            "uri" : uri,
+            "protocol": protocol,
+            "host": host,
+            "port": port
+            })
+
+    @property
+    def _stop_command(self):
+        uri = self.get("uri") or ""
+        protocol = self.get("protocol") or ""
+        host = self.get("host") or ""
+        port = self.get("port") or ""
+
+        # add ccnx:/example.com/ udp 224.0.0.204 52428
+        return "ccndc del %(uri)s %(protocol)s %(host)s %(port)s" % ({
+            "uri" : uri,
+            "protocol": protocol,
+            "host": host,
+            "port": port
+            })
+
+    def valid_connection(self, guid):
+        # TODO: Validate!
+        return True
+