From 2e0fbfbdfd45bf70b92d8fa3866bcbbd2f49fe64 Mon Sep 17 00:00:00 2001
From: Sapan Bhatia <sapanb@cs.princeton.edu>
Date: Wed, 2 Sep 2009 21:59:00 +0000
Subject: [PATCH]

---
 sfatables/commands/Add.py  | 17 +++++-----
 sfatables/commands/List.py | 69 +++++++++++++++++++++++++++++++++++---
 sfatables/matches/hrn.xml  |  2 +-
 sfatables/pretty.py        | 40 ++++++++++++++++++++++
 4 files changed, 113 insertions(+), 15 deletions(-)
 create mode 100644 sfatables/pretty.py

diff --git a/sfatables/commands/Add.py b/sfatables/commands/Add.py
index d67b54f6..b62ad6c4 100644
--- a/sfatables/commands/Add.py
+++ b/sfatables/commands/Add.py
@@ -16,19 +16,19 @@ class Add(Command):
         dir = sfatables_config + chain;
         last_rule_number = 1
 
-        for file in os.walk(dir):
-            if (file.startswith('sfatables-')):
-                number_str = file.split('-')[1]
-                number = int(number_str)
-                if (number>last_rule_number):
-                    last_rule_number = number
+        for (root, dirs, files) in os.walk(dir):
+            for file in files:
+                if (file.startswith('sfatables-')):
+                    number_str = file.split('-')[1]
+                    number = int(number_str)
+                    if (number>last_rule_number):
+                        last_rule_number = number
 
         return "sfatables-%d-%s"%(last_rule_number,type)
 
 
 
     def call(self, command_options, match_options, target_options):
-        import pdb
         filename = match_dir + "/"+match_options.match_name+".xml"
         xmldoc = libxml2.parseFile(filename)
     
@@ -49,10 +49,9 @@ class Add(Command):
                     valueNode.addContent(option_value)
                     context[0].addChild(valueNode)
 
-        pdb.set_trace()
         chain = command_options.args[0]
         filename = self.getnextfilename('match',chain)
-        xmldoc.saveFile(match_dir + '/' + chain + '/' + filename)
+        xmldoc.saveFile(filename)
         p.xpathFreeContext()
         xmldoc.freeDoc()
 
diff --git a/sfatables/commands/List.py b/sfatables/commands/List.py
index b3385e4c..3a0bb396 100644
--- a/sfatables/commands/List.py
+++ b/sfatables/commands/List.py
@@ -1,4 +1,9 @@
 import os, time
+import libxml2
+import pdb
+
+from globals import *
+from pretty import Pretty
 from sfatables.command import Command
 
 class List(Command):
@@ -11,10 +16,64 @@ class List(Command):
     def __init__(self):
         return
 
-    def call(self):
-        # Override this function
-        return True
 
-    def __call__(self, option, opt_str, value, parser, *args, **kwargs):
+    def get_info(self, xmlextension_path):
+        xmldoc = libxml2.parseFile(xmlextension_path)
+        p = xmldoc.xpathNewContext()
+        
+        ext_name_node = p.xpathEval("/match/@name")
+        ext_name = ext_name_node[0].content
+
+        name_nodes = p.xpathEval("//rule/argument[value!='']/name")
+        value_nodes = p.xpathEval("//rule/argument[value!='']/value")
+
+        names = [n.content for n in name_nodes]
+        values = [v.content for v in value_nodes]
+
+        name_values = zip(names,values)
+        name_value_pairs = map(lambda (n,v):n+'='+v, name_values)
+
+        argument_str = ",".join(name_value_pairs)
+
+        p.xpathFreeContext()
+        xmldoc.freeDoc()
+
+        return {'name':ext_name, 'arguments':'argument_str'}
+
+    def call(self, command_options, match_options, target_options):
+        chain = command_options.args[0]
+        chain_dir = sfatables_config + "/" + chain
+        rule_list = []
+        broken_semantics = os.walk(chain_dir)
+        for (root, dirs, files) in broken_semantics:
+            for file in files:
+                if (file.startswith('sfatables')):
+                    (magic,number,type) = file.split('-')
+                    rule_list.append(int(number))
+
+        rule_list.sort()
+
+        pretty = Pretty(['Rule','Match','Target','Arguments'])
+
+        for number in rule_list:
+            match_file = "sfatables-%d-%s"%(number,'match')
+            target_file = "sfatables-%d-%s"%(number,'target')
+
+            match_path = sfatables_config + '/' + chain + '/' + match_file
+            target_path = sfatables_config + '/' + chain + '/' + target_file
+            
+            match_info = self.get_info (match_path)
+            target_info = self.get_info (target_path)
+
+            pretty.push_row(["%d"%number,  match_info['name'], match_info['arguments'], target_info['arguments']])
+        
+        
+        pretty.pprint()
+
+            
+
+
+
+
+
 
-        return self.call(option)
diff --git a/sfatables/matches/hrn.xml b/sfatables/matches/hrn.xml
index 5a7121c3..e6444e89 100644
--- a/sfatables/matches/hrn.xml
+++ b/sfatables/matches/hrn.xml
@@ -7,7 +7,7 @@ as the one matched by this rule.
 
 -->
 
-<match>
+<match name="hrn">
     <context select="//sfa//user/hrn"/>
     <rule>
         <argument>
diff --git a/sfatables/pretty.py b/sfatables/pretty.py
new file mode 100644
index 00000000..9a896ee3
--- /dev/null
+++ b/sfatables/pretty.py
@@ -0,0 +1,40 @@
+#!/usr/bin/python
+
+class Pretty:
+    rows = []
+    column_width = []
+
+    def __init__(self, header):
+        self.rows.append(header)
+        for c in header:
+            self.column_width.append(len(header))
+
+    def push_row (self, row):
+        self.rows.append(row)
+        num = 0
+        for c in row:
+            if (self.column_width[num] < len(c)):
+                self.column_width[num] = len(c)
+            num = num + 1
+        return
+
+    def pprint (self):
+        print '\n'
+
+        for rule in self.rows:
+            cur_line = ""
+            num = 0
+
+            import pdb
+            pdb.set_trace()
+            for r in rule:
+                cur_line = cur_line + "%s "%r
+                if (self.column_width[num] > len(r)):
+                    padding0 = ''.zfill(self.column_width[num] - len(r))
+                    padding = padding0.replace('0',' ')
+                    cur_line = cur_line + padding
+                num = num + 1
+
+            print cur_line
+
+
-- 
2.43.0