Adding ccncat linux example

[nepi.git] / src / nepi / resources / linux / ccn / ccncat.py

diff --git a/src/nepi/resources/linux/ccn/ccncat.py b/src/nepi/resources/linux/ccn/ccncat.py
new file mode 100644 (file)
index 0000000..c721c33
--- /dev/null
+++ b/src/nepi/resources/linux/ccn/ccncat.py
@@ -0,0 +1,66 @@
+#
+#    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.resource import clsinit_copy, ResourceState, \
+    reschedule_delay
+from nepi.resources.linux.ccn.ccnapplication import LinuxCCNApplication
+
+import os
+
+@clsinit_copy
+class LinuxCCNCat(LinuxCCNApplication):
+    _rtype = "LinuxCCNCat"
+
+    @classmethod
+    def _register_attributes(cls):
+        content_name = Attribute("contentName",
+            "Content name for the content to peek",
+            flags = Flags.Design)
+
+        cls._register_attribute(content_name)
+
+    def __init__(self, ec, guid):
+        super(LinuxCCNCat, self).__init__(ec, guid)
+        self._home = "ccncat-%s" % self.guid
+
+    def do_deploy(self):
+        if not self.ccnd or self.ccnd.state < ResourceState.READY:
+            self.debug("---- RESCHEDULING DEPLOY ---- node state %s " % self.node.state )
+            self.ec.schedule(reschedule_delay, self.deploy)
+        else:
+            command = self.get("command")
+            if not command:
+                command = "ccncat %s" % self.get("contentName")
+                self.set("command", command) 
+
+            self.info("Deploying command '%s' " % command)
+            
+            if not self.get("env"):
+                self.set("env", self._environment)
+
+            self.do_discover()
+            self.do_provision()
+
+            self.set_ready()
+
+    def valid_connection(self, guid):
+        # TODO: Validate!
+        return True
+