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[tor-commits] [metrics-db/master] Remove bridge statistics from metrics-db.



commit 85dc1ad844373bb88fb67bc94e32269990438fcb
Author: Karsten Loesing <karsten.loesing@xxxxxxx>
Date:   Wed Mar 2 20:32:09 2011 +0100

    Remove bridge statistics from metrics-db.
---
 config.template                                    |   22 -
 .../ernie/db/BridgeDescriptorParser.java           |  158 ++-----
 .../ernie/db/BridgeStatsFileHandler.java           |  519 --------------------
 src/org/torproject/ernie/db/Configuration.java     |   59 +--
 .../ernie/db/ConsensusStatsFileHandler.java        |  282 -----------
 src/org/torproject/ernie/db/Main.java              |   39 +--
 .../torproject/ernie/db/RelayDescriptorParser.java |   14 +-
 .../ernie/db/SanitizedBridgesReader.java           |  114 -----
 .../ernie/test/SanitizedBridgesReaderTest.java     |   33 --
 9 files changed, 42 insertions(+), 1198 deletions(-)

diff --git a/config.template b/config.template
index 7385f7b..3477801 100644
--- a/config.template
+++ b/config.template
@@ -26,18 +26,6 @@
 ## download missing relay descriptors from
 #DownloadFromDirectoryAuthorities 86.59.21.38,194.109.206.212,212.112.245.170
 #
-## Import sanitized bridges from disk, if available
-#ImportSanitizedBridges 0
-#
-## Relative path to directory to import sanitized bridges from
-#SanitizedBridgesDirectory bridges/
-#
-## Keep a history of imported sanitized bridge descriptors. This history
-## can be useful when importing from a changing data source to avoid
-## importing descriptors more than once, but it can be confusing to users
-## who don't know about it.
-#KeepSanitizedBridgesImportHistory 0
-#
 ## Import bridge snapshots from disk, if available
 #ImportBridgeSnapshots 0
 #
@@ -75,10 +63,6 @@
 ## JDBC string for relay descriptor database
 #RelayDescriptorDatabaseJDBC jdbc:postgresql://localhost/tordir?user=ernie&password=password
 #
-## Write statistics about the current consensus and votes to the
-## website
-#WriteConsensusHealth 0
-#
 ## Write sanitized bridges to disk
 #WriteSanitizedBridges 0
 #
@@ -93,10 +77,4 @@
 #
 ## Relative path to directory to write sanitized bridges to
 #SanitizedBridgesWriteDirectory sanitized-bridges/
-#
-## Write consensus stats to disk
-#WriteConsensusStats 0
-#
-## Write bridge stats to disk
-#WriteBridgeStats 0
 
diff --git a/src/org/torproject/ernie/db/BridgeDescriptorParser.java b/src/org/torproject/ernie/db/BridgeDescriptorParser.java
index e2d8bd0..9453088 100644
--- a/src/org/torproject/ernie/db/BridgeDescriptorParser.java
+++ b/src/org/torproject/ernie/db/BridgeDescriptorParser.java
@@ -9,14 +9,9 @@ import java.util.logging.*;
 import org.apache.commons.codec.digest.*;
 
 public class BridgeDescriptorParser {
-  private ConsensusStatsFileHandler csfh;
-  private BridgeStatsFileHandler bsfh;
   private SanitizedBridgesWriter sbw;
   private Logger logger;
-  public BridgeDescriptorParser(ConsensusStatsFileHandler csfh,
-      BridgeStatsFileHandler bsfh, SanitizedBridgesWriter sbw) {
-    this.csfh = csfh;
-    this.bsfh = bsfh;
+  public BridgeDescriptorParser(SanitizedBridgesWriter sbw) {
     this.sbw = sbw;
     this.logger =
         Logger.getLogger(BridgeDescriptorParser.class.getName());
@@ -25,139 +20,46 @@ public class BridgeDescriptorParser {
     try {
       BufferedReader br = new BufferedReader(new StringReader(
           new String(allData, "US-ASCII")));
-      SimpleDateFormat timeFormat = new SimpleDateFormat(
-          "yyyy-MM-dd HH:mm:ss");
-      timeFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
-      String hashedIdentity = null, platformLine = null,
-          publishedLine = null, geoipStartTimeLine = null,
-          bridgeStatsEndLine = null;
       boolean skip = false;
-      String line = null;
-      while ((line = br.readLine()) != null) {
-        if (line.startsWith("r ")) {
-          if (this.sbw != null) {
-            if (sanitized) {
-              this.sbw.storeSanitizedNetworkStatus(allData, dateTime);
-            } else {
-              this.sbw.sanitizeAndStoreNetworkStatus(allData, dateTime);
-            }
+      String line = br.readLine();
+      if (line != null) {
+        return;
+      } else if (line.startsWith("r ")) {
+        if (this.sbw != null) {
+          if (sanitized) {
+            this.sbw.storeSanitizedNetworkStatus(allData, dateTime);
+          } else {
+            this.sbw.sanitizeAndStoreNetworkStatus(allData, dateTime);
           }
-          int runningBridges = 0;
-          while ((line = br.readLine()) != null) {
-            if (line.startsWith("s ") && line.contains(" Running")) {
-              runningBridges++;
-            }
-          }
-          if (this.csfh != null) {
-            this.csfh.addBridgeConsensusResults(dateTime, runningBridges);
-          }
-        } else if (line.startsWith("router ")) {
-          if (this.sbw != null) {
-            if (sanitized) {
-              this.sbw.storeSanitizedServerDescriptor(allData);
-            } else {
-              this.sbw.sanitizeAndStoreServerDescriptor(allData);
-            }
-          }
-        } else if (line.startsWith("extra-info ")) {
-          if (this.sbw != null) {
-            if (sanitized) {
-              this.sbw.storeSanitizedExtraInfoDescriptor(allData);
-            } else {
-              this.sbw.sanitizeAndStoreExtraInfoDescriptor(allData);
-            }
-          }
-          hashedIdentity = sanitized ? line.split(" ")[2]
-              : DigestUtils.shaHex(line.split(" ")[2]).toUpperCase();
-          if (this.bsfh != null) {
-            skip = this.bsfh.isKnownRelay(hashedIdentity);
-          }
-        } else if (!skip && line.startsWith("platform ")) {
-          platformLine = line;
-        } else if (!skip && line.startsWith("published ")) {
-          publishedLine = line;
-        } else if (line.startsWith("opt fingerprint") ||
-            line.startsWith("fingerprint")) {
-          String identity = line.substring(line.startsWith("opt ") ?
-              "opt fingerprint".length() : "fingerprint".length()).
-              replaceAll(" ", "").toLowerCase();
-          hashedIdentity = sanitized ? identity
-              : DigestUtils.shaHex(identity).toUpperCase();
-        } else if (!skip && line.startsWith("geoip-start-time ")) {
-          geoipStartTimeLine = line;
-        } else if (!skip && line.startsWith("geoip-client-origins")
-            && line.split(" ").length > 1) {
-          if (publishedLine == null ||
-              geoipStartTimeLine == null) {
-            this.logger.warning("Either published line or "
-                + "geoip-start-time line is not present in "
-                + (sanitized ? "sanitized" : "non-sanitized")
-                + " bridge descriptors from " + dateTime + ".");
-            break;
-          }
-          long published = timeFormat.parse(publishedLine.
-              substring("published ".length())).getTime();
-          long started = timeFormat.parse(geoipStartTimeLine.
-              substring("geoip-start-time ".length())).getTime();
-          long seconds = (published - started) / 1000L;
-          double allUsers = 0.0D;
-          Map<String, String> obs = new HashMap<String, String>();
-          String[] parts = line.split(" ")[1].split(",");
-          for (String p : parts) {
-            String country = p.substring(0, 2);
-            double users = ((double) Long.parseLong(p.substring(3)) - 4L)
-                    * 86400.0D / ((double) seconds);
-            allUsers += users;
-            obs.put(country, String.format("%.2f", users));
-          }
-          obs.put("zy", String.format("%.2f", allUsers));
-          String date = publishedLine.split(" ")[1];
-          String time = publishedLine.split(" ")[2];
-          if (this.bsfh != null) {
-            this.bsfh.addObs(hashedIdentity, date, time, obs);
-          }
-        } else if (!skip && line.startsWith("bridge-stats-end ")) {
-          bridgeStatsEndLine = line;
-        } else if (!skip && line.startsWith("bridge-ips")
-            && line.split(" ").length > 1) {
-          if (bridgeStatsEndLine == null) {
-            this.logger.warning("bridge-ips line without preceding "
-                + "bridge-stats-end line in "
-                + (sanitized ? "sanitized" : "non-sanitized")
-                + " bridge descriptor.");
-            break;
+        }
+        int runningBridges = 0;
+        while ((line = br.readLine()) != null) {
+          if (line.startsWith("s ") && line.contains(" Running")) {
+            runningBridges++;
           }
-          double allUsers = 0.0D;
-          Map<String, String> obs = new HashMap<String, String>();
-          String[] parts = line.split(" ")[1].split(",");
-          for (String p : parts) {
-            String country = p.substring(0, 2);
-            double users = (double) Long.parseLong(p.substring(3)) - 4L;
-            allUsers += users;
-            obs.put(country, String.format("%.2f", users));
+        }
+      } else if (line.startsWith("router ")) {
+        if (this.sbw != null) {
+          if (sanitized) {
+            this.sbw.storeSanitizedServerDescriptor(allData);
+          } else {
+            this.sbw.sanitizeAndStoreServerDescriptor(allData);
           }
-          obs.put("zy", String.format("%.2f", allUsers));
-          String date = bridgeStatsEndLine.split(" ")[1];
-          String time = bridgeStatsEndLine.split(" ")[2];
-          if (this.bsfh != null) {
-            this.bsfh.addObs(hashedIdentity, date, time, obs);
+        }
+      } else if (line.startsWith("extra-info ")) {
+        if (this.sbw != null) {
+          if (sanitized) {
+            this.sbw.storeSanitizedExtraInfoDescriptor(allData);
+          } else {
+            this.sbw.sanitizeAndStoreExtraInfoDescriptor(allData);
           }
         }
       }
-      if (this.bsfh != null && platformLine != null &&
-          platformLine.startsWith("platform Tor 0.2.2")) {
-        String date = publishedLine.split(" ")[1];
-        String time = publishedLine.split(" ")[2];
-        this.bsfh.addZeroTwoTwoDescriptor(hashedIdentity, date, time);
-      }
     } catch (IOException e) {
       this.logger.log(Level.WARNING, "Could not parse bridge descriptor.",
           e);
       return;
-    } catch (ParseException e) {
-      this.logger.log(Level.WARNING, "Could not parse bridge descriptor.",
-          e);
-      return;
     }
   }
 }
+
diff --git a/src/org/torproject/ernie/db/BridgeStatsFileHandler.java b/src/org/torproject/ernie/db/BridgeStatsFileHandler.java
deleted file mode 100644
index 8a417b5..0000000
--- a/src/org/torproject/ernie/db/BridgeStatsFileHandler.java
+++ /dev/null
@@ -1,519 +0,0 @@
-/* Copyright 2010 The Tor Project
- * See LICENSE for licensing information */
-package org.torproject.ernie.db;
-
-import java.io.*;
-import java.sql.*;
-import java.text.*;
-import java.util.*;
-import java.util.logging.*;
-
-/**
- * Determines estimates of bridge users per country and day from the
- * extra-info descriptors that bridges publish. In a first step, the
- * number of unique IP addresses that bridges see are normalized to a
- * 24-hour period. In the next step, all bridges are excluded that have
- * been running as a relay. Finally, observations are summed up and
- * written to <code>stats/bridge-stats</code>.
- */
-public class BridgeStatsFileHandler {
-
-  /**
-   * Two-letter country codes of known countries.
-   */
-  private SortedSet<String> countries;
-
-  /**
-   * Intermediate results file containing bridge user numbers by country
-   * as seen by single bridges, normalized to 24-hour periods.
-   */
-  private File bridgeStatsRawFile;
-
-  /**
-   * Bridge user numbers by country as seen by single bridges on a given
-   * day. Map keys are bridge and date written as "bridge,date", map
-   * values are lines as read from <code>stats/bridge-stats-raw</code>.
-   */
-  private SortedMap<String, Map<String, String>> bridgeUsersRaw;
-
-  /**
-   * Helper file containing the hashed relay identities of all known
-   * relays. These hashes are compared to the bridge identity hashes to
-   * exclude bridges that have been known as relays from the statistics.
-   */
-  private File hashedRelayIdentitiesFile;
-
-  /**
-   * Known hashed relay identities used to exclude bridges that have been
-   * running as relays.
-   */
-  private SortedSet<String> hashedRelays;
-
-  /**
-   * Helper file containing extra-info descriptors published by 0.2.2.x
-   * bridges. If these descriptors contain geoip-stats, they are not
-   * included in the results, because stats are very likely broken.
-   */
-  private File zeroTwoTwoDescriptorsFile;
-
-  /**
-   * Extra-info descriptors published by 0.2.2.x bridges. If these
-   * descriptors contain geoip-stats, they are not included in the
-   * results, because stats are very likely broken.
-   */
-  private SortedSet<String> zeroTwoTwoDescriptors;
-
-  /**
-   * Final results file containing the number of bridge users per country
-   * and day. This file is not read in during initialization, but
-   * overwritten at the end of the execution.
-   */
-  private File bridgeStatsFile;
-
-  /**
-   * Logger for this class.
-   */
-  private Logger logger;
-
-  /* Database connection string. */
-  private String connectionURL = null;
-
-  /**
-   * Initializes this class, including reading in intermediate results
-   * files <code>stats/bridge-stats-raw</code> and
-   * <code>stats/hashed-relay-identities</code>.
-   */
-  public BridgeStatsFileHandler(String connectionURL) {
-
-    /* Initialize set of known countries. */
-    this.countries = new TreeSet<String>();
-    this.countries.add("zy");
-
-    /* Initialize local data structures to hold results. */
-    this.bridgeUsersRaw = new TreeMap<String, Map<String, String>>();
-    this.hashedRelays = new TreeSet<String>();
-    this.zeroTwoTwoDescriptors = new TreeSet<String>();
-
-    /* Initialize file names for intermediate and final results. */
-    this.bridgeStatsRawFile = new File("stats/bridge-stats-raw");
-    this.bridgeStatsFile = new File("stats/bridge-stats");
-    this.hashedRelayIdentitiesFile = new File(
-        "stats/hashed-relay-identities");
-    this.zeroTwoTwoDescriptorsFile = new File(
-        "stats/v022-bridge-descriptors");
-
-    /* Initialize database connection string. */
-    this.connectionURL = connectionURL;
-
-    /* Initialize logger. */
-    this.logger = Logger.getLogger(
-        BridgeStatsFileHandler.class.getName());
-
-    /* Read in bridge user numbers by country as seen by single bridges,
-     * normalized to 24-hour periods. */
-    if (this.bridgeStatsRawFile.exists()) {
-      try {
-        this.logger.fine("Reading file "
-            + this.bridgeStatsRawFile.getAbsolutePath() + "...");
-        BufferedReader br = new BufferedReader(new FileReader(
-            this.bridgeStatsRawFile));
-        String line = br.readLine();
-        if (line != null) {
-          /* The first line should contain headers that we need to parse
-           * in order to learn what countries we were interested in when
-           * writing this file. */
-          if (!line.startsWith("bridge,date,time,")) {
-            this.logger.warning("Incorrect first line '" + line + "' in "
-                + this.bridgeStatsRawFile.getAbsolutePath() + "! This line "
-                + "should contain headers! Aborting to read in this "
-                + "file!");
-          } else {
-            String[] headers = line.split(",");
-            for (int i = 3; i < headers.length; i++) {
-              if (!headers[i].equals("all")) {
-                this.countries.add(headers[i]);
-              }
-            }
-            /* Read in the rest of the file. */
-            while ((line = br.readLine()) != null) {
-              String[] parts = line.split(",");
-              if (parts.length != headers.length) {
-                this.logger.warning("Corrupt line '" + line + "' in file "
-                    + this.bridgeStatsRawFile.getAbsolutePath()
-                    + "! Aborting to read this file!");
-                break;
-              }
-              String hashedBridgeIdentity = parts[0];
-              String date = parts[1];
-              String time = parts[2];
-              SortedMap<String, String> obs =
-                  new TreeMap<String, String>();
-              for (int i = 3; i < parts.length; i++) {
-                if (parts[i].equals("NA")) {
-                  continue;
-                }
-                if (headers[i].equals("all")) {
-                  obs.put("zy", parts[i]);
-                } else {
-                  obs.put(headers[i], parts[i]);
-                }
-              }
-              this.addObs(hashedBridgeIdentity, date, time, obs);
-            }
-          }
-        }
-        br.close();
-        this.logger.fine("Finished reading file "
-            + this.bridgeStatsRawFile.getAbsolutePath() + ".");
-      } catch (IOException e) {
-        this.logger.log(Level.WARNING, "Failed to read file "
-            + this.bridgeStatsRawFile.getAbsolutePath() + "!", e);
-      }
-    }
-
-    /* Read in known hashed relay identities used to exclude bridges that
-     * have been running as relays. */
-    if (this.hashedRelayIdentitiesFile.exists()) {
-      try {
-        this.logger.fine("Reading file "
-            + this.hashedRelayIdentitiesFile.getAbsolutePath() + "...");
-        BufferedReader br = new BufferedReader(new FileReader(
-            this.hashedRelayIdentitiesFile));
-        String line = null;
-        /* Read in all lines from the file and memorize them. */
-        while ((line = br.readLine()) != null) {
-          this.hashedRelays.add(line);
-        }
-        br.close();
-        this.logger.fine("Finished reading file "
-            + this.hashedRelayIdentitiesFile.getAbsolutePath() + ".");
-      } catch (IOException e) {
-        this.logger.log(Level.WARNING, "Failed to read file "
-            + this.hashedRelayIdentitiesFile.getAbsolutePath() + "!", e);
-      }
-    }
-
-    /* Read in known extra-info descriptors published by 0.2.2.x
-     * bridges. */
-    if (this.zeroTwoTwoDescriptorsFile.exists()) {
-      try {
-        this.logger.fine("Reading file "
-            + this.zeroTwoTwoDescriptorsFile.getAbsolutePath() + "...");
-        BufferedReader br = new BufferedReader(new FileReader(
-            this.zeroTwoTwoDescriptorsFile));
-        String line = null;
-        /* Read in all lines from the file and memorize them. */
-        while ((line = br.readLine()) != null) {
-          this.zeroTwoTwoDescriptors.add(line);
-        }
-        br.close();
-        this.logger.fine("Finished reading file "
-            + this.zeroTwoTwoDescriptorsFile.getAbsolutePath() + ".");
-      } catch (IOException e) {
-        this.logger.log(Level.WARNING, "Failed to read file "
-            + this.zeroTwoTwoDescriptorsFile.getAbsolutePath() + "!", e);
-      }
-    }
-  }
-
-  /**
-   * Adds a hashed relay identity string to the list of bridges that we
-   * are going to ignore in the future. If we counted user numbers from
-   * bridges that have been running as relays, our numbers would be far
-   * higher than what we think is correct.
-   */
-  public void addHashedRelay(String hashedRelayIdentity) {
-    if (!this.hashedRelays.contains(hashedRelayIdentity)) {
-      this.logger.finer("Adding new hashed relay identity: "
-          + hashedRelayIdentity);
-      this.hashedRelays.add(hashedRelayIdentity);
-    }
-  }
-
-  /**
-   * Adds an extra-info descriptor identifier published by an 0.2.2.x
-   * bridges. If this extra-info descriptor contains geoip-stats, they are
-   * not included in the results, because stats are very likely broken.
-   */
-  public void addZeroTwoTwoDescriptor(String hashedBridgeIdentity,
-      String date, String time) {
-    String value = hashedBridgeIdentity.toUpperCase() + "," + date + ","
-        + time;
-    if (!this.zeroTwoTwoDescriptors.contains(value)) {
-      this.logger.finer("Adding new bridge 0.2.2.x extra-info "
-          + "descriptor: " + value);
-      this.zeroTwoTwoDescriptors.add(value);
-    }
-  }
-
-  /**
-   * Returns whether the given fingerprint is a known hashed relay
-   * identity. <code>BridgeDescriptorParser</code> uses this information
-   * to decide whether to continue parsing a bridge extra-descriptor
-   * descriptor or not.
-   */
-  public boolean isKnownRelay(String hashedBridgeIdentity) {
-    return this.hashedRelays.contains(hashedBridgeIdentity);
-  }
-
-  /**
-   * Adds bridge user numbers by country as seen by a single bridge on a
-   * given date and time. Bridges can publish statistics on unique IP
-   * addresses multiple times a day, but we only want to include one
-   * observation per day. If we already have an observation from the given
-   * bridge and day, we keep the one with the later publication time and
-   * discard the other one.
-   */
-  public void addObs(String hashedIdentity, String date, String time,
-      Map<String, String> obs) {
-    for (String country : obs.keySet()) {
-      this.countries.add(country);
-    }
-    String shortKey = hashedIdentity + "," + date;
-    String longKey = shortKey + "," + time;
-    SortedMap<String, Map<String, String>> tailMap =
-        this.bridgeUsersRaw.tailMap(shortKey);
-    String nextKey = tailMap.isEmpty() ? null : tailMap.firstKey();
-    if (nextKey == null || !nextKey.startsWith(shortKey)) {
-      this.logger.finer("Adding new bridge user numbers for key "
-          + longKey);
-      this.bridgeUsersRaw.put(longKey, obs);
-    } else if (longKey.compareTo(nextKey) > 0) {
-      this.logger.finer("Replacing existing bridge user numbers (" +
-          nextKey + " with new numbers: " + longKey);
-      this.bridgeUsersRaw.put(longKey, obs);
-    } else {
-      this.logger.finer("Not replacing existing bridge user numbers (" +
-          nextKey + " with new numbers (" + longKey + ").");
-    }
-  }
-
-  /**
-   * Writes the list of hashed relay identities and bridge user numbers as
-   * observed by single bridges to disk, aggregates per-day statistics for
-   * all bridges, and writes those to disk, too.
-   */
-  public void writeFiles() {
-
-    /* Write hashed relay identities to disk. */
-    try {
-      this.logger.fine("Writing file "
-          + this.hashedRelayIdentitiesFile.getAbsolutePath() + "...");
-      this.hashedRelayIdentitiesFile.getParentFile().mkdirs();
-      BufferedWriter bw = new BufferedWriter(new FileWriter(
-          this.hashedRelayIdentitiesFile));
-      for (String hashedRelay : this.hashedRelays) {
-        bw.append(hashedRelay + "\n");
-      }
-      bw.close();
-      this.logger.fine("Finished writing file "
-          + this.hashedRelayIdentitiesFile.getAbsolutePath() + ".");
-    } catch (IOException e) {
-      this.logger.log(Level.WARNING, "Failed to write "
-          + this.hashedRelayIdentitiesFile.getAbsolutePath() + "!", e);
-    }
-
-    /* Write bridge extra-info descriptor identifiers to disk. */
-    try {
-      this.logger.fine("Writing file "
-          + this.zeroTwoTwoDescriptorsFile.getAbsolutePath() + "...");
-      this.zeroTwoTwoDescriptorsFile.getParentFile().mkdirs();
-      BufferedWriter bw = new BufferedWriter(new FileWriter(
-          this.zeroTwoTwoDescriptorsFile));
-      for (String descriptorIdentifier : this.zeroTwoTwoDescriptors) {
-        bw.append(descriptorIdentifier + "\n");
-      }
-      bw.close();
-      this.logger.fine("Finished writing file "
-          + this.zeroTwoTwoDescriptorsFile.getAbsolutePath() + ".");
-    } catch (IOException e) {
-      this.logger.log(Level.WARNING, "Failed to write "
-          + this.zeroTwoTwoDescriptorsFile.getAbsolutePath() + "!", e);
-    }
-
-    /* Write observations made by single bridges to disk. */
-    try {
-      this.logger.fine("Writing file "
-          + this.bridgeStatsRawFile.getAbsolutePath() + "...");
-      this.bridgeStatsRawFile.getParentFile().mkdirs();
-      BufferedWriter bw = new BufferedWriter(new FileWriter(
-          this.bridgeStatsRawFile));
-      bw.append("bridge,date,time");
-      for (String c : this.countries) {
-        if (c.equals("zy")) {
-          bw.append(",all");
-        } else {
-          bw.append("," + c);
-        }
-      }
-      bw.append("\n");
-      for (Map.Entry<String, Map<String, String>> e :
-          this.bridgeUsersRaw.entrySet()) {
-        String longKey = e.getKey();
-        String[] parts = longKey.split(",");
-        String hashedBridgeIdentity = parts[0];
-        String date = parts[1];
-        String time = parts[2];
-        if (!this.hashedRelays.contains(hashedBridgeIdentity) &&
-            !this.zeroTwoTwoDescriptors.contains(longKey)) {
-          Map<String, String> obs = e.getValue();
-          StringBuilder sb = new StringBuilder(longKey);
-          for (String c : this.countries) {
-            sb.append("," + (obs.containsKey(c) &&
-                !obs.get(c).startsWith("-") ? obs.get(c) : "NA"));
-          }
-          String line = sb.toString();
-          bw.append(line + "\n");
-        }
-      }
-      bw.close();
-      this.logger.fine("Finished writing file "
-          + this.bridgeStatsRawFile.getAbsolutePath() + ".");
-    } catch (IOException e) {
-      this.logger.log(Level.WARNING, "Failed to write "
-          + this.bridgeStatsRawFile.getAbsolutePath() + "!", e);
-    }
-
-    /* Aggregate per-day statistics. */
-    SortedMap<String, double[]> bridgeUsersPerDay =
-        new TreeMap<String, double[]>();
-    for (Map.Entry<String, Map<String, String>> e :
-        this.bridgeUsersRaw.entrySet()) {
-      String longKey = e.getKey();
-      String[] parts = longKey.split(",");
-      String hashedBridgeIdentity = parts[0];
-      String date = parts[1];
-      String time = parts[2];
-      if (!this.hashedRelays.contains(hashedBridgeIdentity) &&
-          !this.zeroTwoTwoDescriptors.contains(longKey)) {
-        double[] users = bridgeUsersPerDay.get(date);
-        Map<String, String> obs = e.getValue();
-        if (users == null) {
-          users = new double[this.countries.size()];
-          bridgeUsersPerDay.put(date, users);
-        }
-        int i = 0;
-        for (String c : this.countries) {
-          if (obs.containsKey(c) && !obs.get(c).startsWith("-")) {
-            users[i] += Double.parseDouble(obs.get(c));
-          }
-          i++;
-        }
-      }
-    }
-
-    /* Write final results of bridge users per day and country to
-     * <code>stats/bridge-stats</code>. */
-    try {
-      this.logger.fine("Writing file "
-          + this.bridgeStatsRawFile.getAbsolutePath() + "...");
-      this.bridgeStatsFile.getParentFile().mkdirs();
-      BufferedWriter bw = new BufferedWriter(new FileWriter(
-          this.bridgeStatsFile));
-      bw.append("date");
-      for (String c : this.countries) {
-        if (c.equals("zy")) {
-          bw.append(",all");
-        } else {
-          bw.append("," + c);
-        }
-      }
-      bw.append("\n");
-
-      /* Write current observation. */
-      for (Map.Entry<String, double[]> e : bridgeUsersPerDay.entrySet()) {
-        String date = e.getKey();
-        bw.append(date);
-        double[] users = e.getValue();
-        for (int i = 0; i < users.length; i++) {
-          bw.append("," + String.format("%.2f", users[i]));
-        }
-        bw.append("\n");
-      }
-      bw.close();
-      this.logger.fine("Finished writing file "
-          + this.bridgeStatsFile.getAbsolutePath() + ".");
-    } catch (IOException e) {
-      this.logger.log(Level.WARNING, "Failed to write "
-          + this.bridgeStatsFile.getAbsolutePath() + "!", e);
-    }
-
-    /* Add daily bridge users to database. */
-    if (connectionURL != null) {
-      try {
-        List<String> countryList = new ArrayList<String>();
-        for (String c : this.countries) {
-          countryList.add(c);
-        }
-        Map<String, Integer> insertRows = new HashMap<String, Integer>(),
-            updateRows = new HashMap<String, Integer>();
-        for (Map.Entry<String, double[]> e :
-            bridgeUsersPerDay.entrySet()) {
-          String date = e.getKey();
-          double[] users = e.getValue();
-          for (int i = 0; i < users.length; i++) {
-            int usersInt = (int) users[i];
-            if (usersInt < 1) {
-              continue;
-            }
-            String country = countryList.get(i);
-            String key = date + "," + country;
-            insertRows.put(key, usersInt);
-          }
-        }
-        Connection conn = DriverManager.getConnection(connectionURL);
-        conn.setAutoCommit(false);
-        Statement statement = conn.createStatement();
-        ResultSet rs = statement.executeQuery(
-            "SELECT date, country, users FROM bridge_stats");
-        while (rs.next()) {
-          String date = rs.getDate(1).toString();
-          String country = rs.getString(2);
-          String key = date + "," + country;
-          if (insertRows.containsKey(key)) {
-            int insertRow = insertRows.remove(key);
-            int oldUsers = rs.getInt(3);
-            if (oldUsers != insertRow) {
-              updateRows.put(key, insertRow);
-            }
-          }
-        }
-        rs.close();
-        PreparedStatement psU = conn.prepareStatement(
-            "UPDATE bridge_stats SET users = ? "
-            + "WHERE date = ? AND country = ?");
-        for (Map.Entry<String, Integer> e : updateRows.entrySet()) {
-          String[] keyParts = e.getKey().split(",");
-          java.sql.Date date = java.sql.Date.valueOf(keyParts[0]);
-          String country = keyParts[1];
-          int users = e.getValue();
-          psU.clearParameters();
-          psU.setInt(1, users);
-          psU.setDate(2, date);
-          psU.setString(3, country);
-          psU.executeUpdate();
-        }
-        PreparedStatement psI = conn.prepareStatement(
-            "INSERT INTO bridge_stats (users, date, country) "
-            + "VALUES (?, ?, ?)");
-        for (Map.Entry<String, Integer> e : insertRows.entrySet()) {
-          String[] keyParts = e.getKey().split(",");
-          java.sql.Date date = java.sql.Date.valueOf(keyParts[0]);
-          String country = keyParts[1];
-          int users = e.getValue();
-          psI.clearParameters();
-          psI.setInt(1, users);
-          psI.setDate(2, date);
-          psI.setString(3, country);
-          psI.executeUpdate();
-        }
-        conn.commit();
-        conn.close();
-      } catch (SQLException e) {
-        logger.log(Level.WARNING, "Failed to add daily bridge users to "
-            + "database.", e);
-      }
-    }
-  }
-}
-
diff --git a/src/org/torproject/ernie/db/Configuration.java b/src/org/torproject/ernie/db/Configuration.java
index b8f8f39..3554e23 100644
--- a/src/org/torproject/ernie/db/Configuration.java
+++ b/src/org/torproject/ernie/db/Configuration.java
@@ -13,8 +13,6 @@ import java.util.logging.*;
  * configuration.
  */
 public class Configuration {
-  private boolean writeConsensusStats = false;
-  private boolean writeBridgeStats = false;
   private boolean writeDirectoryArchives = false;
   private String directoryArchivesOutputDirectory = "directory-archive/";
   private boolean importCachedRelayDescriptors = false;
@@ -30,9 +28,6 @@ public class Configuration {
   private boolean replaceIPAddressesWithHashes = false;
   private long limitBridgeDescriptorMappings = -1L;
   private String sanitizedBridgesWriteDirectory = "sanitized-bridges/";
-  private boolean importSanitizedBridges = false;
-  private String sanitizedBridgesDirectory = "bridges/";
-  private boolean keepSanitizedBridgesImportHistory = false;
   private boolean importBridgeSnapshots = false;
   private String bridgeSnapshotsDirectory = "bridge-directories/";
   private boolean importWriteTorperfStats = false;
@@ -67,12 +62,6 @@ public class Configuration {
       while ((line = br.readLine()) != null) {
         if (line.startsWith("#") || line.length() < 1) {
           continue;
-        } else if (line.startsWith("WriteConsensusStats")) {
-          this.writeConsensusStats = Integer.parseInt(
-              line.split(" ")[1]) != 0;
-        } else if (line.startsWith("WriteBridgeStats")) {
-          this.writeBridgeStats = Integer.parseInt(
-              line.split(" ")[1]) != 0;
         } else if (line.startsWith("WriteDirectoryArchives")) {
           this.writeDirectoryArchives = Integer.parseInt(
               line.split(" ")[1]) != 0;
@@ -111,14 +100,6 @@ public class Configuration {
               line.split(" ")[1]);
         } else if (line.startsWith("SanitizedBridgesWriteDirectory")) {
           this.sanitizedBridgesWriteDirectory = line.split(" ")[1];
-        } else if (line.startsWith("ImportSanitizedBridges")) {
-          this.importSanitizedBridges = Integer.parseInt(
-              line.split(" ")[1]) != 0;
-        } else if (line.startsWith("SanitizedBridgesDirectory")) {
-          this.sanitizedBridgesDirectory = line.split(" ")[1];
-        } else if (line.startsWith("KeepSanitizedBridgesImportHistory")) {
-          this.keepSanitizedBridgesImportHistory = Integer.parseInt(
-              line.split(" ")[1]) != 0;
         } else if (line.startsWith("ImportBridgeSnapshots")) {
           this.importBridgeSnapshots = Integer.parseInt(
               line.split(" ")[1]) != 0;
@@ -184,13 +165,11 @@ public class Configuration {
     /** Make some checks if configuration is valid. */
     if (!this.importCachedRelayDescriptors &&
         !this.importDirectoryArchives && !this.downloadRelayDescriptors &&
-        !this.importSanitizedBridges && !this.importBridgeSnapshots &&
-        !this.importWriteTorperfStats &&
+        !this.importBridgeSnapshots && !this.importWriteTorperfStats &&
         !this.downloadProcessGetTorStats && !this.downloadExitList &&
         !this.writeDirectoryArchives &&
         !this.writeAggregateStatsDatabase &&
-        !this.writeSanitizedBridges && !this.writeConsensusStats &&
-        !this.writeBridgeStats) {
+        !this.writeSanitizedBridges) {
       logger.warning("We have not been configured to read data from any "
           + "data source or write data to any data sink. You need to "
           + "edit your config file (" + configFile.getAbsolutePath()
@@ -199,8 +178,7 @@ public class Configuration {
     }
     if ((this.importCachedRelayDescriptors ||
         this.importDirectoryArchives || this.downloadRelayDescriptors) &&
-        !(this.writeDirectoryArchives || this.writeConsensusStats ||
-        this.writeBridgeStats)) {
+        !this.writeDirectoryArchives) {
       logger.warning("We are configured to import/download relay "
           + "descriptors, but we don't have a single data sink to write "
           + "relay descriptors to.");
@@ -212,23 +190,13 @@ public class Configuration {
           + "least one data sink, but we don't have a single data source "
           + "containing relay descriptors.");
     }
-    if (!(this.importCachedRelayDescriptors ||
-        this.importDirectoryArchives || this.downloadRelayDescriptors ||
-        this.importSanitizedBridges || this.importBridgeSnapshots) &&
-        (this.writeBridgeStats || this.writeConsensusStats)) {
-      logger.warning("We are configured to write relay or bridge "
-          + "descriptors to at least one data sink, but we have neither "
-          + "data sources containing relay nor bridge descriptors.");
-    }
-    if ((this.importSanitizedBridges || this.importBridgeSnapshots) &&
-        !(this.writeSanitizedBridges || this.writeConsensusStats ||
-        this.writeBridgeStats || this.writeAggregateStatsDatabase)) {
+    if (this.importBridgeSnapshots && !(this.writeSanitizedBridges ||
+        this.writeAggregateStatsDatabase)) {
       logger.warning("We are configured to import/download bridge "
           + "descriptors, but we don't have a single data sink to write "
           + "bridge descriptors to.");
     }
-    if (!(this.importSanitizedBridges || this.importBridgeSnapshots) &&
-        (this.writeSanitizedBridges)) {
+    if (!this.importBridgeSnapshots && this.writeSanitizedBridges) {
       logger.warning("We are configured to write bridge descriptor to at "
           + "least one data sink, but we don't have a single data source "
           + "containing bridge descriptors.");
@@ -239,12 +207,6 @@ public class Configuration {
           + "but not to import them into the database.");
     }
   }
-  public boolean getWriteConsensusStats() {
-    return this.writeConsensusStats;
-  }
-  public boolean getWriteBridgeStats() {
-    return this.writeBridgeStats;
-  }
   public boolean getWriteDirectoryArchives() {
     return this.writeDirectoryArchives;
   }
@@ -284,15 +246,6 @@ public class Configuration {
   public String getSanitizedBridgesWriteDirectory() {
     return this.sanitizedBridgesWriteDirectory;
   }
-  public boolean getImportSanitizedBridges() {
-    return this.importSanitizedBridges;
-  }
-  public String getSanitizedBridgesDirectory() {
-    return this.sanitizedBridgesDirectory;
-  }
-  public boolean getKeepSanitizedBridgesImportHistory() {
-    return this.keepSanitizedBridgesImportHistory;
-  }
   public boolean getImportBridgeSnapshots() {
     return this.importBridgeSnapshots;
   }
diff --git a/src/org/torproject/ernie/db/ConsensusStatsFileHandler.java b/src/org/torproject/ernie/db/ConsensusStatsFileHandler.java
deleted file mode 100644
index 81e4e3a..0000000
--- a/src/org/torproject/ernie/db/ConsensusStatsFileHandler.java
+++ /dev/null
@@ -1,282 +0,0 @@
-/* Copyright 2010 The Tor Project
- * See LICENSE for licensing information */
-package org.torproject.ernie.db;
-
-import java.io.*;
-import java.sql.*;
-import java.text.*;
-import java.util.*;
-import java.util.logging.*;
-
-/**
- * Generates statistics on the average number of relays and bridges per
- * day. Accepts parse results from <code>RelayDescriptorParser</code> and
- * <code>BridgeDescriptorParser</code> and stores them in intermediate
- * result files <code>stats/consensus-stats-raw</code> and
- * <code>stats/bridge-consensus-stats-raw</code>. Writes final results to
- * <code>stats/consensus-stats</code> for all days for which at least half
- * of the expected consensuses or statuses are known.
- */
-public class ConsensusStatsFileHandler {
-
-  /**
-   * Intermediate results file holding the number of running bridges per
-   * bridge status.
-   */
-  private File bridgeConsensusStatsRawFile;
-
-  /**
-   * Number of running bridges in a given bridge status. Map keys are
-   * bridge status times formatted as "yyyy-MM-dd HH:mm:ss", map values
-   * are lines as read from <code>stats/bridge-consensus-stats-raw</code>.
-   */
-  private SortedMap<String, String> bridgesRaw;
-
-  /**
-   * Average number of running bridges per day. Map keys are dates
-   * formatted as "yyyy-MM-dd", map values are the last column as written
-   * to <code>stats/consensus-stats</code>.
-   */
-  private SortedMap<String, String> bridgesPerDay;
-
-  /**
-   * Logger for this class.
-   */
-  private Logger logger;
-
-  private int bridgeResultsAdded = 0;
-
-  /* Database connection string. */
-  private String connectionURL = null;
-
- /**
-  * Initializes this class, including reading in intermediate results
-  * files <code>stats/consensus-stats-raw</code> and
-  * <code>stats/bridge-consensus-stats-raw</code> and final results file
-  * <code>stats/consensus-stats</code>.
-  */
-  public ConsensusStatsFileHandler(String connectionURL) {
-
-    /* Initialize local data structures to hold intermediate and final
-     * results. */
-    this.bridgesPerDay = new TreeMap<String, String>();
-    this.bridgesRaw = new TreeMap<String, String>();
-
-    /* Initialize file names for intermediate and final results files. */
-    this.bridgeConsensusStatsRawFile = new File(
-        "stats/bridge-consensus-stats-raw");
-
-    /* Initialize database connection string. */
-    this.connectionURL = connectionURL;
-
-    /* Initialize logger. */
-    this.logger = Logger.getLogger(
-        ConsensusStatsFileHandler.class.getName());
-
-    /* Read in number of running bridges per bridge status. */
-    if (this.bridgeConsensusStatsRawFile.exists()) {
-      try {
-        this.logger.fine("Reading file "
-            + this.bridgeConsensusStatsRawFile.getAbsolutePath() + "...");
-        BufferedReader br = new BufferedReader(new FileReader(
-            this.bridgeConsensusStatsRawFile));
-        String line = null;
-        while ((line = br.readLine()) != null) {
-          if (line.startsWith("date")) {
-            /* Skip headers. */
-            continue;
-          }
-          String[] parts = line.split(",");
-          if (parts.length != 2) {
-            this.logger.warning("Corrupt line '" + line + "' in file "
-                + this.bridgeConsensusStatsRawFile.getAbsolutePath()
-                + "! Aborting to read this file!");
-            break;
-          }
-          String dateTime = parts[0];
-          this.bridgesRaw.put(dateTime, line);
-        }
-        br.close();
-        this.logger.fine("Finished reading file "
-            + this.bridgeConsensusStatsRawFile.getAbsolutePath() + ".");
-      } catch (IOException e) {
-        this.logger.log(Level.WARNING, "Failed to read file "
-            + this.bridgeConsensusStatsRawFile.getAbsolutePath() + "!",
-            e);
-      }
-    }
-  }
-
-  /**
-   * Adds the intermediate results of the number of running bridges in a
-   * given bridge status to the existing observations.
-   */
-  public void addBridgeConsensusResults(String published, int running) {
-    String line = published + "," + running;
-    if (!this.bridgesRaw.containsKey(published)) {
-      this.logger.finer("Adding new bridge numbers: " + line);
-      this.bridgesRaw.put(published, line);
-      this.bridgeResultsAdded++;
-    } else if (!line.equals(this.bridgesRaw.get(published))) {
-      this.logger.warning("The numbers of running bridges we were just "
-        + "given (" + line + ") are different from what we learned "
-        + "before (" + this.bridgesRaw.get(published) + ")! "
-        + "Overwriting!");
-      this.bridgesRaw.put(published, line);
-    }
-  }
-
-  /**
-   * Aggregates the raw observations on relay and bridge numbers and
-   * writes both raw and aggregate observations to disk.
-   */
-  public void writeFiles() {
-
-    /* Did we learn anything new about average relay or bridge numbers in
-     * this run? */
-    boolean writeConsensusStats = false;
-
-    /* Go through raw observations of numbers of running bridges in bridge
-     * statuses, calculate averages per day, and add these averages to
-     * final results. */
-    if (!this.bridgesRaw.isEmpty()) {
-      String tempDate = null;
-      int brunning = 0, statuses = 0;
-      Iterator<String> it = this.bridgesRaw.values().iterator();
-      boolean haveWrittenFinalLine = false;
-      while (it.hasNext() || !haveWrittenFinalLine) {
-        String next = it.hasNext() ? it.next() : null;
-        /* Finished reading a day or even all lines? */
-        if (tempDate != null && (next == null
-            || !next.substring(0, 10).equals(tempDate))) {
-          /* Only write results if we have seen at least half of all
-           * statuses. */
-          if (statuses >= 24) {
-            String line = "," + (brunning / statuses);
-            /* Are our results new? */
-            if (!this.bridgesPerDay.containsKey(tempDate)) {
-              this.logger.finer("Adding new average bridge numbers: "
-                  + tempDate + line);
-              this.bridgesPerDay.put(tempDate, line);
-              writeConsensusStats = true;
-            } else if (!line.equals(this.bridgesPerDay.get(tempDate))) {
-              this.logger.finer("Replacing existing average bridge "
-                  + "numbers (" + this.bridgesPerDay.get(tempDate)
-                  + " with new numbers: " + line);
-              this.bridgesPerDay.put(tempDate, line);
-              writeConsensusStats = true;
-            }
-          }
-          brunning = statuses = 0;
-          haveWrittenFinalLine = (next == null);
-        }
-        /* Sum up number of running bridges. */
-        if (next != null) {
-          tempDate = next.substring(0, 10);
-          statuses++;
-          brunning += Integer.parseInt(next.split(",")[1]);
-        }
-      }
-    }
-
-    /* Write raw numbers of running bridges to disk. */
-    try {
-      this.logger.fine("Writing file "
-          + this.bridgeConsensusStatsRawFile.getAbsolutePath() + "...");
-      this.bridgeConsensusStatsRawFile.getParentFile().mkdirs();
-      BufferedWriter bw = new BufferedWriter(
-          new FileWriter(this.bridgeConsensusStatsRawFile));
-      bw.append("datetime,brunning\n");
-      for (String line : this.bridgesRaw.values()) {
-        bw.append(line + "\n");
-      }
-      bw.close();
-      this.logger.fine("Finished writing file "
-          + this.bridgeConsensusStatsRawFile.getAbsolutePath() + ".");
-    } catch (IOException e) {
-      this.logger.log(Level.WARNING, "Failed to write file "
-          + this.bridgeConsensusStatsRawFile.getAbsolutePath() + "!",
-          e);
-    }
-
-    /* Add average number of bridges per day to the database. */
-    if (connectionURL != null) {
-      try {
-        Map<String, String> insertRows = new HashMap<String, String>(),
-            updateRows = new HashMap<String, String>();
-        insertRows.putAll(this.bridgesPerDay);
-        Connection conn = DriverManager.getConnection(connectionURL);
-        conn.setAutoCommit(false);
-        Statement statement = conn.createStatement();
-        ResultSet rs = statement.executeQuery(
-            "SELECT date, avg_running FROM bridge_network_size");
-        while (rs.next()) {
-          String date = rs.getDate(1).toString();
-          if (insertRows.containsKey(date)) {
-            String insertRow = insertRows.remove(date);
-            long newAvgRunning = Long.parseLong(insertRow.substring(1));
-            long oldAvgRunning = rs.getLong(2);
-            if (newAvgRunning != oldAvgRunning) {
-              updateRows.put(date, insertRow);
-            }
-          }
-        }
-        rs.close();
-        PreparedStatement psU = conn.prepareStatement(
-            "UPDATE bridge_network_size SET avg_running = ? "
-            + "WHERE date = ?");
-        for (Map.Entry<String, String> e : updateRows.entrySet()) {
-          java.sql.Date date = java.sql.Date.valueOf(e.getKey());
-          long avgRunning = Long.parseLong(e.getValue().substring(1));
-          psU.clearParameters();
-          psU.setLong(1, avgRunning);
-          psU.setDate(2, date);
-          psU.executeUpdate();
-        }
-        PreparedStatement psI = conn.prepareStatement(
-            "INSERT INTO bridge_network_size (avg_running, date) "
-            + "VALUES (?, ?)");
-        for (Map.Entry<String, String> e : insertRows.entrySet()) {
-          java.sql.Date date = java.sql.Date.valueOf(e.getKey());
-          long avgRunning = Long.parseLong(e.getValue().substring(1));
-          psI.clearParameters();
-          psI.setLong(1, avgRunning);
-          psI.setDate(2, date);
-          psI.executeUpdate();
-        }
-        conn.commit();
-        conn.close();
-      } catch (SQLException e) {
-        logger.log(Level.WARNING, "Failed to add average bridge numbers "
-            + "to database.", e);
-      }
-    }
-
-    /* Write stats. */
-    StringBuilder dumpStats = new StringBuilder("Finished writing "
-        + "statistics on bridge network statuses to disk.\nAdded "
-        + this.bridgeResultsAdded + " bridge network status(es) in this "
-        + "execution.");
-    long now = System.currentTimeMillis();
-    SimpleDateFormat dateTimeFormat =
-        new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
-    dateTimeFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
-    if (this.bridgesRaw.isEmpty()) {
-      dumpStats.append("\nNo bridge status known yet.");
-    } else {
-      dumpStats.append("\nLast known bridge status was published "
-          + this.bridgesRaw.lastKey() + ".");
-      try {
-        if (now - 6L * 60L * 60L * 1000L > dateTimeFormat.parse(
-            this.bridgesRaw.lastKey()).getTime()) {
-          logger.warning("Last known bridge status is more than 6 hours "
-              + "old: " + this.bridgesRaw.lastKey());
-        }
-      } catch (ParseException e) {
-         /* Can't parse the timestamp? Whatever. */
-      }
-    }
-    logger.info(dumpStats.toString());
-  }
-}
-
diff --git a/src/org/torproject/ernie/db/Main.java b/src/org/torproject/ernie/db/Main.java
index 4dced2c..2dc0c86 100644
--- a/src/org/torproject/ernie/db/Main.java
+++ b/src/org/torproject/ernie/db/Main.java
@@ -33,12 +33,6 @@ public class Main {
     // Define stats directory for temporary files
     File statsDirectory = new File("stats");
 
-    // Prepare bridge stats file handler
-    BridgeStatsFileHandler bsfh = config.getWriteBridgeStats() ?
-        new BridgeStatsFileHandler(
-        config.getWriteAggregateStatsDatabase() ?
-        config.getRelayDescriptorDatabaseJDBC() : null) : null;
-
     // Prepare writing relay descriptor archive to disk
     ArchiveWriter aw = config.getWriteDirectoryArchives() ?
         new ArchiveWriter(
@@ -46,9 +40,8 @@ public class Main {
 
     // Prepare relay descriptor parser (only if we are writing stats or
     // directory archives to disk)
-    RelayDescriptorParser rdp = config.getWriteBridgeStats() ||
-        config.getWriteDirectoryArchives() ?
-        new RelayDescriptorParser(bsfh, aw) : null;
+    RelayDescriptorParser rdp = aw != null ?
+        new RelayDescriptorParser(aw) : null;
 
     // Import/download relay descriptors from the various sources
     if (rdp != null) {
@@ -56,7 +49,7 @@ public class Main {
       if (config.getDownloadRelayDescriptors()) {
         List<String> dirSources =
             config.getDownloadFromDirectoryAuthorities();
-        boolean downloadCurrentConsensus = aw != null || bsfh != null;
+        boolean downloadCurrentConsensus = aw != null;
         boolean downloadCurrentVotes = aw != null;
         boolean downloadAllServerDescriptors = aw != null;
         boolean downloadAllExtraInfos = aw != null;
@@ -100,12 +93,6 @@ public class Main {
       aw = null;
     }
 
-    // Prepare consensus stats file handler
-    ConsensusStatsFileHandler csfh = config.getWriteConsensusStats() ?
-        new ConsensusStatsFileHandler(
-        config.getWriteAggregateStatsDatabase() ?
-        config.getRelayDescriptorDatabaseJDBC() : null) : null;
-
     // Prepare sanitized bridge descriptor writer
     SanitizedBridgesWriter sbw = config.getWriteSanitizedBridges() ?
         new SanitizedBridgesWriter(
@@ -114,16 +101,10 @@ public class Main {
         config.getLimitBridgeDescriptorMappings()) : null;
 
     // Prepare bridge descriptor parser
-    BridgeDescriptorParser bdp = config.getWriteConsensusStats() ||
-        config.getWriteBridgeStats() || config.getWriteSanitizedBridges()
-        ? new BridgeDescriptorParser(csfh, bsfh, sbw) : null;
+    BridgeDescriptorParser bdp = config.getWriteSanitizedBridges()
+        ? new BridgeDescriptorParser(sbw) : null;
 
     // Import bridge descriptors
-    if (bdp != null && config.getImportSanitizedBridges()) {
-      new SanitizedBridgesReader(bdp,
-          new File(config.getSanitizedBridgesDirectory()),
-          statsDirectory, config.getKeepSanitizedBridgesImportHistory());
-    }
     if (bdp != null && config.getImportBridgeSnapshots()) {
       new BridgeSnapshotReader(bdp,
           new File(config.getBridgeSnapshotsDirectory()),
@@ -136,16 +117,6 @@ public class Main {
       sbw = null;
     }
 
-    // Write updated stats files to disk
-    if (bsfh != null) {
-      bsfh.writeFiles();
-      bsfh = null;
-    }
-    if (csfh != null) {
-      csfh.writeFiles();
-      csfh = null;
-    }
-
     // Import and process torperf stats
     if (config.getImportWriteTorperfStats()) {
       new TorperfProcessor(new File(config.getTorperfDirectory()),
diff --git a/src/org/torproject/ernie/db/RelayDescriptorParser.java b/src/org/torproject/ernie/db/RelayDescriptorParser.java
index fcfc0eb..bfd0033 100644
--- a/src/org/torproject/ernie/db/RelayDescriptorParser.java
+++ b/src/org/torproject/ernie/db/RelayDescriptorParser.java
@@ -18,11 +18,6 @@ import org.apache.commons.codec.binary.*;
 public class RelayDescriptorParser {
 
   /**
-   * Stats file handler that accepts parse results for bridge statistics.
-   */
-  private BridgeStatsFileHandler bsfh;
-
-  /**
    * File writer that writes descriptor contents to files in a
    * directory-archive directory structure.
    */
@@ -44,9 +39,7 @@ public class RelayDescriptorParser {
   /**
    * Initializes this class.
    */
-  public RelayDescriptorParser(BridgeStatsFileHandler bsfh,
-      ArchiveWriter aw) {
-    this.bsfh = bsfh;
+  public RelayDescriptorParser(ArchiveWriter aw) {
     this.aw = aw;
 
     /* Initialize logger. */
@@ -121,11 +114,6 @@ public class RelayDescriptorParser {
           }
         }
         if (isConsensus) {
-          if (this.bsfh != null) {
-            for (String hashedRelayIdentity : hashedRelayIdentities) {
-              this.bsfh.addHashedRelay(hashedRelayIdentity);
-            }
-          }
           if (this.rdd != null) {
             this.rdd.haveParsedConsensus(validAfterTime, dirSources,
                 serverDescriptors);
diff --git a/src/org/torproject/ernie/db/SanitizedBridgesReader.java b/src/org/torproject/ernie/db/SanitizedBridgesReader.java
deleted file mode 100644
index 2ddf1dd..0000000
--- a/src/org/torproject/ernie/db/SanitizedBridgesReader.java
+++ /dev/null
@@ -1,114 +0,0 @@
-/* Copyright 2010 The Tor Project
- * See LICENSE for licensing information */
-package org.torproject.ernie.db;
-
-import java.io.*;
-import java.util.*;
-import java.util.logging.*;
-
-public class SanitizedBridgesReader {
-  public SanitizedBridgesReader(BridgeDescriptorParser bdp,
-      File bridgesDir, File statsDirectory, boolean keepImportHistory) {
-
-    if (bdp == null || bridgesDir == null || statsDirectory == null) {
-      throw new IllegalArgumentException();
-    }
-
-    Logger logger =
-        Logger.getLogger(SanitizedBridgesReader.class.getName());
-    SortedSet<String> bridgesImportHistory = new TreeSet<String>();
-    File bridgesImportHistoryFile =
-        new File(statsDirectory, "bridges-import-history");
-    if (keepImportHistory && bridgesImportHistoryFile.exists()) {
-      try {
-        BufferedReader br = new BufferedReader(new FileReader(
-            bridgesImportHistoryFile));
-        String line = null;
-        while ((line = br.readLine()) != null) {
-          bridgesImportHistory.add(line);
-        }
-        br.close();
-      } catch (IOException e) {
-        logger.log(Level.WARNING, "Could not read in bridge descriptor "
-            + "import history file. Skipping.");
-      }
-    }
-    if (bridgesDir.exists()) {
-      logger.fine("Importing files in directory " + bridgesDir + "/...");
-      Stack<File> filesInInputDir = new Stack<File>();
-      filesInInputDir.add(bridgesDir);
-      List<File> problems = new ArrayList<File>();
-      while (!filesInInputDir.isEmpty()) {
-        File pop = filesInInputDir.pop();
-        if (pop.isDirectory()) {
-          for (File f : pop.listFiles()) {
-            filesInInputDir.add(f);
-          }
-          continue;
-        } else if (keepImportHistory && bridgesImportHistory.contains(
-            pop.getName())) {
-          continue;
-        } else {
-          try {
-            BufferedInputStream bis = new BufferedInputStream(
-                new FileInputStream(pop));
-            ByteArrayOutputStream baos = new ByteArrayOutputStream();
-            int len;
-            byte[] data = new byte[1024];
-            while ((len = bis.read(data, 0, 1024)) >= 0) {
-              baos.write(data, 0, len);
-            }
-            bis.close();
-            byte[] allData = baos.toByteArray();
-            String fn = pop.getName();
-            // TODO dateTime extraction doesn't work for sanitized network
-            // statuses!
-            String dateTime = fn.substring(0, 4) + "-" + fn.substring(4, 6)
-                + "-" + fn.substring(6, 8) + " " + fn.substring(9, 11)
-                + ":" + fn.substring(11, 13) + ":" + fn.substring(13, 15);
-            bdp.parse(allData, dateTime, true);
-            if (keepImportHistory) {
-              bridgesImportHistory.add(pop.getName());
-            }
-          } catch (IOException e) {
-            problems.add(pop);
-            if (problems.size() > 3) {
-              break;
-            }
-          }
-        }
-      }
-      if (problems.isEmpty()) {
-        logger.fine("Finished importing files in directory " + bridgesDir
-            + "/.");
-      } else {
-        StringBuilder sb = new StringBuilder("Failed importing files in "
-            + "directory " + bridgesDir + "/:");
-        int printed = 0;
-        for (File f : problems) {
-          sb.append("\n  " + f.getAbsolutePath());
-          if (++printed >= 3) {
-            sb.append("\n  ... more");
-            break;
-          }
-        }
-        logger.warning(sb.toString());
-      }
-      if (keepImportHistory) {
-        try {
-          bridgesImportHistoryFile.getParentFile().mkdirs();
-          BufferedWriter bw = new BufferedWriter(new FileWriter(
-              bridgesImportHistoryFile));
-          for (String line : bridgesImportHistory) {
-            bw.write(line + "\n");
-          }
-          bw.close();
-        } catch (IOException e) {
-          logger.log(Level.WARNING, "Could not write bridge descriptor "
-              + "import history file.");
-        }
-      }
-    }
-  }
-}
-
diff --git a/src/org/torproject/ernie/test/SanitizedBridgesReaderTest.java b/src/org/torproject/ernie/test/SanitizedBridgesReaderTest.java
deleted file mode 100644
index dd5f31e..0000000
--- a/src/org/torproject/ernie/test/SanitizedBridgesReaderTest.java
+++ /dev/null
@@ -1,33 +0,0 @@
-/* Copyright 2011 The Tor Project
- * See LICENSE for licensing information */
-package org.torproject.ernie.test;
-
-import org.torproject.ernie.db.*;
-
-import java.io.*;
-
-import org.junit.*;
-import org.junit.rules.*;
-import static org.junit.Assert.*;
-
-public class SanitizedBridgesReaderTest {
-
-  private File tempSanitizedBridgesDirectory;
-  private File tempStatsDirectory;
-
-  @Rule
-  public TemporaryFolder folder = new TemporaryFolder();
-
-  @Before
-  public void createTempDirectories() {
-    this.tempSanitizedBridgesDirectory = folder.newFolder("bridges");
-    this.tempStatsDirectory = folder.newFolder("stats");
-  }
-
-  @Test(expected = IllegalArgumentException.class)
-  public void testBridgeDescriptorParserNull() {
-    new SanitizedBridgesReader(null, this.tempSanitizedBridgesDirectory,
-        this.tempStatsDirectory, false);
-  }
-}
-

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