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[tor-commits] [metrics-web/master] Write warnings to files, not to stdout.



commit d90bd454e49409bde4b2d6e295aac1b65413825f
Author: Karsten Loesing <karsten.loesing@xxxxxxx>
Date:   Thu Nov 10 20:50:00 2011 +0100

    Write warnings to files, not to stdout.
---
 src/org/torproject/chc/Checker.java          |    7 +-
 src/org/torproject/chc/Main.java             |    2 +-
 src/org/torproject/chc/StatusFileReport.java |  194 ++++++++++++++++++++++++++
 src/org/torproject/chc/StdOutReport.java     |  183 ------------------------
 4 files changed, 196 insertions(+), 190 deletions(-)

diff --git a/src/org/torproject/chc/Checker.java b/src/org/torproject/chc/Checker.java
index d095da4..bdd8bfd 100644
--- a/src/org/torproject/chc/Checker.java
+++ b/src/org/torproject/chc/Checker.java
@@ -25,18 +25,13 @@ public class Checker {
     dateTimeFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
   }
 
-  /* Downloaded consensus and corresponding votes for later
-   * processing. */
+  /* Downloaded consensus and corresponding votes for processing. */
   private SortedMap<String, Status> downloadedConsensuses;
   private Status downloadedConsensus;
   private SortedSet<Status> downloadedVotes;
   public void processDownloadedConsensuses(
       SortedMap<String, Status> downloadedConsensuses) {
     this.downloadedConsensuses = downloadedConsensuses;
-  }
-
-  /* Check consensuses and votes for irregularities. */
-  public void checkConsensus() {
     this.findMostRecentConsensus();
     this.checkMissingConsensuses();
     this.checkAllConsensusesFresh();
diff --git a/src/org/torproject/chc/Main.java b/src/org/torproject/chc/Main.java
index cdc65c3..d911b2f 100644
--- a/src/org/torproject/chc/Main.java
+++ b/src/org/torproject/chc/Main.java
@@ -14,7 +14,7 @@ public class Main {
     reports.add(new MetricsWebsiteReport(
         "website/consensus-health.html"));
     reports.add(new NagiosReport("stats/consensus-health"));
-    reports.add(new StdOutReport());
+    reports.add(new StatusFileReport());
 
     /* Download consensus and corresponding votes from the directory
      * authorities. */
diff --git a/src/org/torproject/chc/StatusFileReport.java b/src/org/torproject/chc/StatusFileReport.java
new file mode 100644
index 0000000..4bf1353
--- /dev/null
+++ b/src/org/torproject/chc/StatusFileReport.java
@@ -0,0 +1,194 @@
+/* Copyright 2011 The Tor Project
+ * See LICENSE for licensing information */
+package org.torproject.chc;
+
+import java.io.*;
+import java.text.*;
+import java.util.*;
+
+/* Check a given consensus and votes for irregularities and write results
+ * to stdout while rate-limiting warnings based on severity. */
+public class StatusFileReport implements Report {
+
+  /* Date-time format to format timestamps. */
+  private static SimpleDateFormat dateTimeFormat;
+  static {
+    dateTimeFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+    dateTimeFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+  }
+
+  /* Downloaded consensus and corresponding votes for later
+   * processing. */
+  private SortedMap<String, Status> downloadedConsensuses;
+  private Status downloadedConsensus;
+  private SortedSet<Status> downloadedVotes;
+  public void processDownloadedConsensuses(
+      SortedMap<String, Status> downloadedConsensuses) {
+    this.downloadedConsensuses = downloadedConsensuses;
+  }
+
+  /* Warnings obtained from checking the current consensus and votes. */
+  private SortedMap<Warning, String> warnings;
+  public void processWarnings(SortedMap<Warning, String> warnings) {
+    this.warnings = warnings;
+  }
+
+  /* Check consensuses and votes for irregularities and write output to
+   * stdout. */
+  public void writeReport() {
+    this.readLastWarned();
+    this.prepareReports();
+    this.writeStatusFiles();
+    this.writeLastWarned();
+  }
+
+  /* Warning messages of the last 24 hours that is used to implement
+   * rate limiting. */
+  private Map<String, Long> lastWarned = new HashMap<String, Long>();
+
+  /* Read when we last emitted a warning to rate-limit some of them. */
+  private void readLastWarned() {
+    long now = System.currentTimeMillis();
+    File lastWarnedFile = new File("stats/chc-last-warned");
+    try {
+      if (lastWarnedFile.exists()) {
+        BufferedReader br = new BufferedReader(new FileReader(
+            lastWarnedFile));
+        String line;
+        while ((line = br.readLine()) != null) {
+          if (!line.contains(": ")) {
+            System.err.println("Bad line in stats/chc-last-warned: '" + line
+                + "'.  Ignoring this line.");
+            continue;
+          }
+          long warnedMillis = Long.parseLong(line.substring(0,
+              line.indexOf(": ")));
+          if (warnedMillis < now - 24L * 60L * 60L * 1000L) {
+            /* Remove warnings that are older than 24 hours. */
+            continue;
+          }
+          String message = line.substring(line.indexOf(": ") + 2);
+          lastWarned.put(message, warnedMillis);
+        }
+      }
+    } catch (IOException e) {
+      System.err.println("Could not read file '"
+          + lastWarnedFile.getAbsolutePath() + "' to learn which "
+          + "warnings have been sent out before.  Ignoring.");
+    }
+  }
+
+  /* Prepare a report to be written to stdout. */
+  private String allWarnings = null, newWarnings = null;
+  private void prepareReports() {
+    SortedMap<String, Long> warningStrings = new TreeMap<String, Long>();
+    for (Map.Entry<Warning, String> e : this.warnings.entrySet()) {
+      Warning type = e.getKey();
+      String details = e.getValue();
+      switch (type) {
+        case NoConsensusKnown:
+          break;
+        case ConsensusDownloadTimeout:
+          warningStrings.put("The following directory authorities did "
+              + "not return a consensus within a timeout of 60 seconds: "
+              + details, 150L * 60L * 1000L);
+          break;
+        case ConsensusNotFresh:
+          warningStrings.put("The consensuses published by the following "
+              + "directory authorities are more than 1 hour old and "
+              + "therefore not fresh anymore: " + details,
+              150L * 60L * 1000L);
+          break;
+        case ConsensusMethodNotSupported:
+          warningStrings.put("The following directory authorities do not "
+              + "support the consensus method that the consensus uses: "
+              + details, 24L * 60L * 60L * 1000L);
+          break;
+        case DifferentRecommendedClientVersions:
+          warningStrings.put("The following directory authorities "
+              + "recommend other client versions than the consensus: "
+              + details, 150L * 60L * 1000L);
+          break;
+        case DifferentRecommendedServerVersions:
+          warningStrings.put("The following directory authorities "
+              + "recommend other server versions than the consensus: "
+              + details, 150L * 60L * 1000L);
+          break;
+        case ConflictingOrInvalidConsensusParams:
+          warningStrings.put("The following directory authorities set "
+              + "conflicting or invalid consensus parameters: " + details,
+              150L * 60L * 1000L);
+          break;
+        case CertificateExpiresSoon:
+          warningStrings.put("The certificates of the following "
+              + "directory authorities expire within the next 14 days: "
+              + details, 24L * 60L * 60L * 1000L);
+          break;
+        case VotesMissing:
+          warningStrings.put("We're missing votes from the following "
+              + "directory authorities: " + details, 150L * 60L * 1000L);
+          break;
+        case BandwidthScannerResultsMissing:
+          warningStrings.put("The following directory authorities are "
+              + "not reporting bandwidth scanner results: " + details,
+              150L * 60L * 1000L);
+          break;
+      }
+    }
+    long now = System.currentTimeMillis();
+    StringBuilder allSb = new StringBuilder(),
+        newSb = new StringBuilder();
+    for (Map.Entry<String, Long> e : warningStrings.entrySet()) {
+      String message = e.getKey();
+      allSb.append(message + "\n");
+      long warnInterval = e.getValue();
+      if (!lastWarned.containsKey(message) ||
+          lastWarned.get(message) + warnInterval < now) {
+        newSb.append(message + "\n");
+      }
+    }
+    if (newSb.length() > 0) {
+      this.allWarnings = allSb.toString();
+      this.newWarnings = newSb.toString();
+    }
+  }
+
+  /* Write report to stdout. */
+  private void writeStatusFiles() {
+    try {
+      BufferedWriter allBw = new BufferedWriter(new FileWriter(
+          "all-warnings")), newBw = new BufferedWriter(new FileWriter(
+          "new-warnings"));
+      if (this.allWarnings != null) {
+        allBw.write(this.allWarnings);
+      }
+      if (this.newWarnings != null) {
+        newBw.write(this.newWarnings);
+      }
+      allBw.close();
+      newBw.close();
+    } catch (IOException e) {
+      System.err.println("Could not write status files 'all-warnings' "
+          + "and/or 'new-warnings'.  Ignoring.");
+    }
+  }
+
+  /* Write timestamps when warnings were last sent to disk. */
+  private void writeLastWarned() {
+    File lastWarnedFile = new File("stats/chc-last-warned");
+    try {
+      lastWarnedFile.getParentFile().mkdirs();
+      BufferedWriter bw = new BufferedWriter(new FileWriter(
+          lastWarnedFile));
+      for (Map.Entry<String, Long> e : lastWarned.entrySet()) {
+        bw.write(String.valueOf(e.getValue()) + ": " + e.getKey() + "\n");
+      }
+      bw.close();
+    } catch (IOException e) {
+      System.err.println("Could not write file '"
+          + lastWarnedFile.getAbsolutePath() + "' to remember which "
+          + "warnings have been sent out before.  Ignoring.");
+    }
+  }
+}
+
diff --git a/src/org/torproject/chc/StdOutReport.java b/src/org/torproject/chc/StdOutReport.java
deleted file mode 100644
index afdaba3..0000000
--- a/src/org/torproject/chc/StdOutReport.java
+++ /dev/null
@@ -1,183 +0,0 @@
-/* Copyright 2011 The Tor Project
- * See LICENSE for licensing information */
-package org.torproject.chc;
-
-import java.io.*;
-import java.text.*;
-import java.util.*;
-
-/* Check a given consensus and votes for irregularities and write results
- * to stdout while rate-limiting warnings based on severity. */
-public class StdOutReport implements Report {
-
-  /* Date-time format to format timestamps. */
-  private static SimpleDateFormat dateTimeFormat;
-  static {
-    dateTimeFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
-    dateTimeFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
-  }
-
-  /* Downloaded consensus and corresponding votes for later
-   * processing. */
-  private SortedMap<String, Status> downloadedConsensuses;
-  private Status downloadedConsensus;
-  private SortedSet<Status> downloadedVotes;
-  public void processDownloadedConsensuses(
-      SortedMap<String, Status> downloadedConsensuses) {
-    this.downloadedConsensuses = downloadedConsensuses;
-  }
-
-  /* Warnings obtained from checking the current consensus and votes. */
-  private SortedMap<Warning, String> warnings;
-  public void processWarnings(SortedMap<Warning, String> warnings) {
-    this.warnings = warnings;
-  }
-
-  /* Check consensuses and votes for irregularities and write output to
-   * stdout. */
-  public void writeReport() {
-    this.readLastWarned();
-    this.prepareReport();
-    this.writeReportToStdOut();
-    this.writeLastWarned();
-  }
-
-  /* Warning messages of the last 24 hours that is used to implement
-   * rate limiting. */
-  private Map<String, Long> lastWarned = new HashMap<String, Long>();
-
-  /* Read when we last emitted a warning to rate-limit some of them. */
-  private void readLastWarned() {
-    long now = System.currentTimeMillis();
-    File lastWarnedFile = new File("stats/chc-last-warned");
-    try {
-      if (lastWarnedFile.exists()) {
-        BufferedReader br = new BufferedReader(new FileReader(
-            lastWarnedFile));
-        String line;
-        while ((line = br.readLine()) != null) {
-          if (!line.contains(": ")) {
-            System.err.println("Bad line in stats/chc-last-warned: '" + line
-                + "'.  Ignoring this line.");
-            continue;
-          }
-          long warnedMillis = Long.parseLong(line.substring(0,
-              line.indexOf(": ")));
-          if (warnedMillis < now - 24L * 60L * 60L * 1000L) {
-            /* Remove warnings that are older than 24 hours. */
-            continue;
-          }
-          String message = line.substring(line.indexOf(": ") + 2);
-          lastWarned.put(message, warnedMillis);
-        }
-      }
-    } catch (IOException e) {
-      System.err.println("Could not read file '"
-          + lastWarnedFile.getAbsolutePath() + "' to learn which "
-          + "warnings have been sent out before.  Ignoring.");
-    }
-  }
-
-  /* Prepare a report to be written to stdout. */
-  private String preparedReport = null;
-  private void prepareReport() {
-    SortedMap<String, Long> warningStrings = new TreeMap<String, Long>();
-    for (Map.Entry<Warning, String> e : this.warnings.entrySet()) {
-      Warning type = e.getKey();
-      String details = e.getValue();
-      switch (type) {
-        case NoConsensusKnown:
-          break;
-        case ConsensusDownloadTimeout:
-          warningStrings.put("The following directory authorities did "
-              + "not return a consensus within a timeout of 60 seconds: "
-              + details, 150L * 60L * 1000L);
-          break;
-        case ConsensusNotFresh:
-          warningStrings.put("The consensuses published by the following "
-              + "directory authorities are more than 1 hour old and "
-              + "therefore not fresh anymore: " + details,
-              150L * 60L * 1000L);
-          break;
-        case ConsensusMethodNotSupported:
-          warningStrings.put("The following directory authorities do not "
-              + "support the consensus method that the consensus uses: "
-              + details, 24L * 60L * 60L * 1000L);
-          break;
-        case DifferentRecommendedClientVersions:
-          warningStrings.put("The following directory authorities "
-              + "recommend other client versions than the consensus: "
-              + details, 150L * 60L * 1000L);
-          break;
-        case DifferentRecommendedServerVersions:
-          warningStrings.put("The following directory authorities "
-              + "recommend other server versions than the consensus: "
-              + details, 150L * 60L * 1000L);
-          break;
-        case ConflictingOrInvalidConsensusParams:
-          warningStrings.put("The following directory authorities set "
-              + "conflicting or invalid consensus parameters: " + details,
-              150L * 60L * 1000L);
-          break;
-        case CertificateExpiresSoon:
-          warningStrings.put("The certificates of the following "
-              + "directory authorities expire within the next 14 days: "
-              + details, 24L * 60L * 60L * 1000L);
-          break;
-        case VotesMissing:
-          warningStrings.put("We're missing votes from the following "
-              + "directory authorities: " + details, 150L * 60L * 1000L);
-          break;
-        case BandwidthScannerResultsMissing:
-          warningStrings.put("The following directory authorities are "
-              + "not reporting bandwidth scanner results: " + details,
-              150L * 60L * 1000L);
-          break;
-      }
-    }
-    long now = System.currentTimeMillis();
-    boolean writeReport = false;
-    for (Map.Entry<String, Long> e : warningStrings.entrySet()) {
-      String message = e.getKey();
-      long warnInterval = e.getValue();
-      if (!lastWarned.containsKey(message) ||
-          lastWarned.get(message) + warnInterval < now) {
-        writeReport = true;
-      }
-    }
-    if (writeReport) {
-      StringBuilder sb = new StringBuilder();
-      for (String message : warningStrings.keySet()) {
-        this.lastWarned.put(message, now);
-        sb.append("\n\n" + message);
-      }
-      this.preparedReport = sb.toString().substring(2);
-    }
-  }
-
-  /* Write report to stdout. */
-  private void writeReportToStdOut() {
-    if (this.preparedReport != null) {
-      System.out.println(this.preparedReport);
-    }
-  }
-
-  /* Write timestamps when warnings were last sent to disk. */
-  private void writeLastWarned() {
-    File lastWarnedFile = new File("stats/chc-last-warned");
-    try {
-      lastWarnedFile.getParentFile().mkdirs();
-      BufferedWriter bw = new BufferedWriter(new FileWriter(
-          lastWarnedFile));
-      for (Map.Entry<String, Long> e : lastWarned.entrySet()) {
-        bw.write(String.valueOf(e.getValue()) + ": " + e.getKey() + "\n");
-      }
-      bw.close();
-    } catch (IOException e) {
-      System.err.println("Could not write file '"
-          + lastWarnedFile.getAbsolutePath() + "' to remember which "
-          + "warnings have been sent out before.  Ignoring.");
-    }
-  }
-}
-

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