com.mpdeimos.ct_tests.history.HistoryAnalyzer.java Source code

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Here is the source code for com.mpdeimos.ct_tests.history.HistoryAnalyzer.java

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/*-------------------------------------------------------------------------+
|                                                                          |
| Copyright 2005-2011 the ConQAT Project                                   |
|                                                                          |
| Licensed under the Apache License, Version 2.0 (the "License");          |
| you may not use this file except in compliance with the License.         |
| You may obtain a copy of the License at                                  |
|                                                                          |
|    http://www.apache.org/licenses/LICENSE-2.0                            |
|                                                                          |
| Unless required by applicable law or agreed to in writing, software      |
| distributed under the License is distributed on an "AS IS" BASIS,        |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and      |
| limitations under the License.                                           |
+-------------------------------------------------------------------------*/
package com.mpdeimos.ct_tests.history;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Locale;

import org.conqat.engine.commons.CommonUtils;
import org.conqat.engine.commons.pattern.PatternList;
import org.conqat.engine.commons.pattern.PatternListDef;
import org.conqat.engine.core.core.ConQATException;
import org.conqat.lib.commons.collections.PairList;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.storage.file.FileRepository;
import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
import org.gitective.core.service.CommitFinder;

import com.mpdeimos.ct_tests.looper.SuspectionOracle;
import com.mpdeimos.ct_tests.vcs.Commit;
import com.mpdeimos.ct_tests.vcs.GitCommitListFilter;

/**
 * Aggregates Git-based VCS Information
 * @author $Author: $
 * @version $Rev: $
 * @ConQAT.Rating RED Hash:
 */
public class HistoryAnalyzer {

    public static String path = "/media/truecrypt2/monodevelop";
    public static String ref = "before-rename";

    public static int countFixes = 0;
    public static int countCommits = 0;
    public static PairList<Date, Double> fixesHistogram = new PairList<Date, Double>();

    /**
     * @param args
     * @throws IOException 
     * @throws ConQATException 
     */
    public static void main(String[] args) throws IOException, ConQATException {

        PatternList pl = new PatternList();
        pl.add(CommonUtils
                .compilePattern("(?is).*(fix|bug|defe(c|k)t|fehler|behoben|co(r|rr)ect|ko(r|rr)igier).*"));

        FileRepositoryBuilder builder = new FileRepositoryBuilder();
        File workTree = new File(path);
        FileRepository repository = builder.setWorkTree(workTree).build();

        ObjectId end = repository.resolve(ref);

        CommitFinder finder = new CommitFinder(repository);
        GitCommitListFilter filter = new GitCommitListFilter();
        finder.setFilter(filter);
        finder.findFrom(end);
        List<Commit> commits = filter.getCommits();
        Collections.reverse(commits);
        for (Commit commit : commits) {
            countCommits++;
            if (SuspectionOracle.isSuspicious(pl, commit)) {
                countFixes++;
            }
            fixesHistogram.add(commit.getDate(), countFixes / (double) countCommits);
        }

        System.out.println(countFixes / (double) countCommits);
        System.out.println(countFixes);
        System.out.println(countCommits);

        File output = new File(workTree, "historyAnalyze.csv");
        output.createNewFile();

        FileWriter fw = new FileWriter(output);
        fw.append("Commits;Fixes\n");
        fw.append(countCommits + ";" + countFixes + "\n\n");

        fw.append("Date;\"Relative Fixes\"\n");

        for (int i = 0; i < fixesHistogram.size(); i++) {
            Date d = fixesHistogram.getFirst(i);
            double r = fixesHistogram.getSecond(i);
            fw.append(String.format(Locale.US, "%d-%d-%d;%f\n", d.getYear() + 1900, d.getMonth() + 1,
                    d.getDay() + 1, r));
        }
        fw.close();
    }

}