From 911f22334b40c3def7ea9b290b84f8424e721fcb Mon Sep 17 00:00:00 2001
From: standash <stdashevsky@gmail.com>
Date: Thu, 7 Dec 2017 18:53:06 +0100
Subject: [PATCH] Add back the tracker for getting statistics on atomic changes
 between commits

---
 .../experiments/CollectChangeStatistics.java  | 86 +++++++++++++++++++
 .../molerat/data/csv/FixStatsDataPoint.java   | 21 -----
 .../changes/ChangeEvidenceTracker.java        |  1 -
 3 files changed, 86 insertions(+), 22 deletions(-)
 create mode 100644 molerat/src/main/java/it/unitn/molerat/cmd/experiments/CollectChangeStatistics.java
 delete mode 100644 molerat/src/main/java/it/unitn/molerat/data/csv/FixStatsDataPoint.java

diff --git a/molerat/src/main/java/it/unitn/molerat/cmd/experiments/CollectChangeStatistics.java b/molerat/src/main/java/it/unitn/molerat/cmd/experiments/CollectChangeStatistics.java
new file mode 100644
index 0000000..d3cea36
--- /dev/null
+++ b/molerat/src/main/java/it/unitn/molerat/cmd/experiments/CollectChangeStatistics.java
@@ -0,0 +1,86 @@
+package it.unitn.molerat.cmd.experiments;
+
+import it.unitn.molerat.data.csv.ChangeStatsDataPoint;
+import it.unitn.molerat.data.csv.InputDataPoint;
+import it.unitn.molerat.repos.trackers.vuln.FixStatisticsVulnerabilityEvidenceTracker;
+import it.unitn.molerat.repos.trackers.vuln.VulnerabilityEvidenceTrackerFactory;
+import it.unitn.molerat.repos.wrappers.GitRepoWrapper;
+import it.unitn.molerat.repos.wrappers.RepoWrapper;
+
+import java.util.Iterator;
+import java.util.Set;
+
+public class CollectChangeStatistics extends AbstractExperiment {
+    public static void main(String[] args) {
+        if (args.length < 2) {
+            System.out.println("USAGE: [input.csv] [output.csv]");
+            return;
+        }
+        String inputCsvPath = args[0];
+        String outputCsvPath = args[1];
+
+        try {
+            saveOutput(outputCsvPath, new ChangeStatsDataPoint().getHeader());
+            Set<InputDataPoint> inputs = readInputDataPoints(inputCsvPath);
+            for (InputDataPoint ip : inputs) {
+                System.out.format("Processing %s project\n", ip.PROJECTID);
+                long timeNow = System.currentTimeMillis();
+
+                RepoWrapper repoWrapper = new GitRepoWrapper(ip.REPO_ROOT);
+                Set<String> commits = repoWrapper.getAllRepositoryTransactions();
+                Iterator<String> it = commits.iterator();
+                while (it.hasNext()) {
+                    String commit = it.next();
+                    if (!it.hasNext()) {
+                        break;
+                    }
+                    collect(outputCsvPath,
+                            ip.PROJECTID,
+                            ip.REPO_TYPE,
+                            ip.REPO_ROOT,
+                            commit);
+                }
+
+                long timeAfter = System.currentTimeMillis();
+                System.out.println("TIME (ms): " + (timeAfter - timeNow));
+            }
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+            return;
+        }
+    }
+
+    private static void collect(String outputCsvPath, String project, String repo_type, String repo_root, String rev) {
+        try {
+            FixStatisticsVulnerabilityEvidenceTracker tracker = (FixStatisticsVulnerabilityEvidenceTracker)
+                    VulnerabilityEvidenceTrackerFactory.getTracker(
+                            repo_root,
+                            rev,
+                            repo_type,
+                            "fixstatisticsvulnerabilityevidencetracker"
+                    );
+            tracker.trackEvidence();
+
+            // if no Java files were modified, we don't care
+            if (tracker.getNumberOfTouchedFiles() == 0) {
+                return;
+            }
+            // else -> save the output
+            String[] output = new String[] {
+                    project,
+                    rev,
+                    String.valueOf(tracker.getNumberOfAddedLines()),
+                    String.valueOf(tracker.getNumberOfDeletedLines()),
+                    String.valueOf(tracker.getNumberOfTouchedMethods()),
+                    String.valueOf(tracker.getNumberOfTouchedFiles())
+            };
+            ChangeStatsDataPoint odp = new ChangeStatsDataPoint(output);
+            saveOutput(outputCsvPath, odp.toString());
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}
+
diff --git a/molerat/src/main/java/it/unitn/molerat/data/csv/FixStatsDataPoint.java b/molerat/src/main/java/it/unitn/molerat/data/csv/FixStatsDataPoint.java
deleted file mode 100644
index 753dbe8..0000000
--- a/molerat/src/main/java/it/unitn/molerat/data/csv/FixStatsDataPoint.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package it.unitn.molerat.data.csv;
-
-public class FixStatsDataPoint extends AbstractDataPoint {
-	public String CVEID;
-	public String ADDED_LINES;
-	public String DELETED_LINES;
-	public String TOUCHED_METHODS;
-	public String TOUCHED_FILES;
-
-	public FixStatsDataPoint(String[] entries) throws Exception {
-		super(entries);
-	}
-
-	public FixStatsDataPoint(String str) throws Exception {
-		super(str);
-	}
-
-	public FixStatsDataPoint() {
-
-	}
-}
diff --git a/molerat/src/main/java/it/unitn/molerat/repos/trackers/changes/ChangeEvidenceTracker.java b/molerat/src/main/java/it/unitn/molerat/repos/trackers/changes/ChangeEvidenceTracker.java
index d1dc8ae..06aa416 100644
--- a/molerat/src/main/java/it/unitn/molerat/repos/trackers/changes/ChangeEvidenceTracker.java
+++ b/molerat/src/main/java/it/unitn/molerat/repos/trackers/changes/ChangeEvidenceTracker.java
@@ -44,7 +44,6 @@ public class ChangeEvidenceTracker extends AbstractEvidenceTracker {
     @Override
     public void trackEvidence() throws Exception {
         for (String commit : this.commits) {
-//            long timeNow = System.currentTimeMillis();
             Map<String, Set<String>> currentSignatures = extractSignatures(commit);
             for (Map.Entry<String, Set<String>> currentSignature : currentSignatures.entrySet()) {
                 Set<String> temp = this.fixConstructs.get(currentSignature.getKey());