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[tor-commits] [stem/master] Parsing dirreq-v2-share and dirreq-v3-share lines



commit e0ad461440361736b8ce340786433fe6dfaf44f2
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Sat May 12 15:39:15 2012 -0700

    Parsing dirreq-v2-share and dirreq-v3-share lines
    
    Couple more extrainfo descriptor fields. Ye gods there a lot.
---
 stem/descriptor/extrainfo_descriptor.py      |   21 ++++++++++++++++
 test/unit/descriptor/extrainfo_descriptor.py |   33 ++++++++++++++++++++++++++
 2 files changed, 54 insertions(+), 0 deletions(-)

diff --git a/stem/descriptor/extrainfo_descriptor.py b/stem/descriptor/extrainfo_descriptor.py
index 61e00dd..58e2220 100644
--- a/stem/descriptor/extrainfo_descriptor.py
+++ b/stem/descriptor/extrainfo_descriptor.py
@@ -161,6 +161,8 @@ class ExtraInfoDescriptor(stem.descriptor.Descriptor):
       dir_v3_ips (dict) - mapping of locales to rounded count of requester ips
       dir_v2_reqs (dict) - mapping of locales to rounded count of requests
       dir_v3_reqs (dict) - mapping of locales to rounded count of requests
+      dir_v2_share (float) - percent of total directory traffic it expects to serve
+      dir_v3_share (float) - percent of total directory traffic it expects to serve
       
       Bytes read/written for directory mirroring
         dir_read_history_end (datetime) - end of the sampling interval
@@ -223,6 +225,8 @@ class ExtraInfoDescriptor(stem.descriptor.Descriptor):
     self.dir_v3_ips = None
     self.dir_v2_reqs = None
     self.dir_v3_reqs = None
+    self.dir_v2_share = None
+    self.dir_v3_share = None
     
     self.dir_read_history_end = None
     self.dir_read_history_interval = None
@@ -305,6 +309,23 @@ class ExtraInfoDescriptor(stem.descriptor.Descriptor):
           raise ValueError("Geoip digest line had an invalid sha1 digest: %s" % line)
         
         self.geoip_db_digest = value
+      elif keyword in ("dirreq-v2-share", "dirreq-v3-share"):
+        # "<keyword>" num%
+        
+        try:
+          if not value.endswith("%"): raise ValueError()
+          percentage = float(value[:-1]) / 100
+          
+          if validate and (percentage > 1 or percentage < 0):
+            raise ValueError()
+          
+          if keyword == "dirreq-v2-share":
+            self.dir_v2_share = percentage
+          elif keyword == "dirreq-v3-share":
+            self.dir_v3_share = percentage
+        except ValueError, exc:
+          if validate:
+            raise ValueError("Value can't be parsed as a percentage: %s" % line)
       elif keyword in ("published", "geoip-start-time"):
         # "<keyword>" YYYY-MM-DD HH:MM:SS
         
diff --git a/test/unit/descriptor/extrainfo_descriptor.py b/test/unit/descriptor/extrainfo_descriptor.py
index 9732d4d..24034be 100644
--- a/test/unit/descriptor/extrainfo_descriptor.py
+++ b/test/unit/descriptor/extrainfo_descriptor.py
@@ -131,6 +131,39 @@ class TestExtraInfoDescriptor(unittest.TestCase):
       desc_text = _make_descriptor({"geoip-db-digest": entry})
       desc = self._expect_invalid_attr(desc_text, "geoip_db_digest", entry)
   
+  def test_percentage_lines(self):
+    """
+    Uses valid and invalid data to tests lines of the form...
+    "<keyword>" num%
+    """
+    
+    for keyword in ('dirreq-v2-share', 'dirreq-v3-share'):
+      attr = keyword.replace('-', '_').replace('dirreq', 'dir')
+      
+      test_entries = (
+        ("0.00%", 0.0),
+        ("0.01%", 0.0001),
+        ("50%", 0.5),
+        ("100.0%", 1.0),
+      )
+      
+      for test_value, expected_value in test_entries:
+        desc_text = _make_descriptor({keyword: test_value})
+        desc = ExtraInfoDescriptor(desc_text)
+        self.assertEquals(expected_value, getattr(desc, attr))
+      
+      test_entries = (
+        ("", None),
+        (" ", None),
+        ("100", None),
+        ("100.1%", 1.001),
+        ("-5%", -0.05),
+      )
+      
+      for entry, expected in test_entries:
+        desc_text = _make_descriptor({keyword: entry})
+        self._expect_invalid_attr(desc_text, attr, expected)
+  
   def test_timestamp_lines(self):
     """
     Uses valid and invalid data to tests lines of the form...



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