From b4a1c65e541f0815436941aeccac4397ac5eeb26 Mon Sep 17 00:00:00 2001
From: Vincenzo Maffione <v.maffione@gmail.com>
Date: Sun, 23 Oct 2016 18:52:18 +0200
Subject: libarcfire: add Policy and normal DIF

---
 libarcfire.py | 42 ++++++++++++++++++++++++++++++++++++++++++
 main.py       |  8 +++++++-
 2 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/libarcfire.py b/libarcfire.py
index e9b7adc..60bce47 100755
--- a/libarcfire.py
+++ b/libarcfire.py
@@ -37,6 +37,48 @@ class ShimEthDIF(DIF):
             raise ValueError("link_speed must be a non-negative number")
 
 
+# A policy
+#
+# @component: RINA component to which the policy applies to
+# @name: Name of the policy
+# @parameters: A dictionary of (key, values) pairs representing policy-specific
+#              parameters
+class Policy:
+    def __init__(self, component, name, **kwargs):
+        self.component = component
+        self.name = name
+        self.parameters = kwargs
+
+    def __repr__(self):
+        s = "%s:%s" % (self.component, self.name)
+        if self.parameters:
+            s += "%s" % self.parameters
+        return s
+
+
+# Normal DIF
+class NormalDIF(DIF):
+    def __init__(self, name, members = None):
+        DIF.__init__(self, name, members)
+        self.policies = dict()
+
+    def policy_add(self, policy):
+        self.policies[policy.component] = policy
+
+    def policy_del(self, component):
+        del self.policies[component]
+
+    def __repr__(self):
+        s = DIF.__repr__(self)
+        if self.policies:
+            s += " policies=["
+        for p in self.policies:
+            s += "%s," % self.policies[p]
+        if self.policies:
+            s += "]"
+        return s
+
+
 # Base class for ARCFIRE experiments
 #
 # @name [string] Name of the experiment
diff --git a/main.py b/main.py
index 88effbb..7777a93 100755
--- a/main.py
+++ b/main.py
@@ -6,7 +6,13 @@ from libarcfire import *
 
 
 exp = Experiment("prova")
-exp.dif_add(ShimEthDIF("300", 0, ["a", "b", "c"]))
+exp.dif_add(ShimEthDIF("300", 0, ["a", "b"]))
+exp.dif_add(ShimEthDIF("400", 0, ["b", "c"]))
+
+n1 = NormalDIF("n1", ["a", "b", "c"])
+n1.policy_add(Policy("rmt.pff", "lfa"))
+n1.policy_add(Policy("security-manager", "passwd", passwd="xyz"))
+exp.dif_add(n1)
 
 print(exp)
 
-- 
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