SourceDetail.java

/**
 * Hudson Serenitec plugin
 *
 * @author Georges Bossert <gbossert@gmail.com>
 * @version $Revision: 1.3 $
 * @since $Date: 2008/07/16 16:01:23 ${date}
 * @copyright Universit� de Rennes 1
 */
package hudson.plugins.serenitec.util;


import hudson.model.AbstractBuild;
import hudson.model.ModelObject;
import hudson.plugins.serenitec.parseur.ReportPointeur;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Vector;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Renders a source file containing an annotation for the whole file or a specific line number.
 * 
 * @author Georges Bossert
 */
public class SourceDetail implements ModelObject
{

    /**
     * Pattern from which we want the source
     */
    private final ReportPointeur      pattern;
    /** Asbtract Build */
    private final AbstractBuild<?, ?> _owner;

    private final String              _fileBefore;
    private final String              _fileAfter;

    /** Source Code */
    private String                    _sourceCode;

    public SourceDetail(final AbstractBuild<?, ?> owner, ReportPointeur pattern) {

        this.pattern = pattern;
        this._owner = owner;
        _fileBefore = pattern.getFullpath();
        _fileAfter = pattern.getFullpath();

    }

    private String getBeforeFile(String filepath) {

        return filepath + ".bis";
    }

    public String getSourceCode() {

        execute();
        return _sourceCode;
    }

    /**
     * Execute the diff
     */
    private void execute() {

        try {
            String[] a = file2string(_fileBefore);
            String[] b = file2string(_fileAfter);
            Diff diff = new Diff(a, b);

            Diff.change next = diff.diff_2(false);
            next = diff.diff_2(false);

            StringBuilder stb = new StringBuilder();
            stb.append("<table class=\"diff\" cellpadding=\"0\" cellspacing=\"0\" >");
            stb.append("<tr>");
            stb.append("<td class=\"ligne_entete\"> </td>");
            stb.append("<td class=\"original_entete\">Original File<br /><small>" + _fileBefore + "</small></td>");
            stb.append("<td class=\"ligne_entete\"> </td>");
            stb.append("<td class=\"refactored_entete\">Refactored File<br /><small>" + _fileAfter + "</small></td>");

            stb.append("</tr>");

            /**
             * generation html source code for those two files
             */
            int max = a.length;
            if (max < b.length) {
                max = b.length;
            }
            String ligneAvant, ligneApres;
            int numeroLigneAvant = 0, numeroLigneApres = 0;
            while (numeroLigneAvant < a.length || numeroLigneApres < b.length) {
                stb.append("<tr>");
                if (numeroLigneAvant >= a.length || a[numeroLigneAvant] == null) {
                    ligneAvant = "";
                } else {
                    ligneAvant = a[numeroLigneAvant];
                }
                if (numeroLigneApres >= b.length || b[numeroLigneApres] == null) {
                    ligneApres = "";
                } else {
                    ligneApres = b[numeroLigneApres];
                }

                if (next != null && next.line0 == numeroLigneAvant) {
                    if (next.inserted > 0 && next.deleted == 0) {
                        for (int i = 0; i < next.inserted; i++) {

                            stb.append("<tr>");
                            stb.append("<td class=\"ligne_normal\">" + numeroLigneAvant + "</td>");
                            stb.append("<td class=\"original_added\"> </td>");
                            stb.append("<td class=\"ligne_added\">" + numeroLigneApres + "</td>");
                            stb.append("<td class=\"refactored_added\">" + ligneApres + "</td>");

                            stb.append("</tr>");

                            numeroLigneApres++;
                            if (numeroLigneApres >= b.length || b[numeroLigneApres] == null) {
                                ligneApres = "";
                            } else {
                                ligneApres = b[numeroLigneApres];
                            }
                        }
                    }
                    if (next.deleted > 0 && next.inserted == 0) {
                        for (int i = 0; i < next.deleted; i++) {

                            stb.append("<tr>");
                            stb.append("<td class=\"ligne_deleted\">" + numeroLigneAvant + "</td>");
                            stb.append("<td class=\"original_deleted\">" + ligneAvant + "</td>");
                            stb.append("<td class=\"ligne_normal\">" + numeroLigneApres + "</td>");
                            stb.append("<td class=\"refactored_deleted\"> </td>");

                            stb.append("</tr>");

                            numeroLigneAvant++;
                            if (numeroLigneAvant >= a.length || a[numeroLigneAvant] == null) {
                                ligneAvant = "";
                            } else {
                                ligneAvant = a[numeroLigneAvant];
                            }
                        }
                    }
                    if (next.deleted > 0 && next.inserted > 0) {
                        int max_temp = 0;
                        int min_temp = 0;

                        max_temp = next.deleted;
                        min_temp = next.inserted;

                        if (max_temp < next.inserted) {
                            max_temp = next.inserted;
                            min_temp = next.deleted;
                        }
                        for (int i = 1; i <= max_temp; i++) {
                            if (i > min_temp) {
                                if (next.deleted > next.inserted) {
                                    stb.append("<tr>");
                                    stb.append("<td class=\"ligne_deleted\">" + numeroLigneAvant + "</td>");
                                    stb.append("<td class=\"original_deleted\">" + ligneAvant + "</td>");
                                    stb.append("<td class=\"ligne_normal\">" + numeroLigneApres + "</td>");
                                    stb.append("<td class=\"refactored_deleted\"> </td>");
                                    stb.append("</tr>");
                                    numeroLigneAvant++;
                                    if (numeroLigneAvant >= a.length || a[numeroLigneAvant] == null) {
                                        ligneAvant = "";
                                    } else {
                                        ligneAvant = a[numeroLigneAvant];
                                    }
                                } else {
                                    stb.append("<tr>");
                                    stb.append("<td class=\"ligne_normal\">" + numeroLigneAvant + "</td>");
                                    stb.append("<td class=\"original_added\"> </td>");
                                    stb.append("<td class=\"ligne_added\">" + numeroLigneApres + "</td>");
                                    stb.append("<td class=\"refactored_added\">" + ligneApres + "</td>");
                                    stb.append("</tr>");
                                    numeroLigneApres++;
                                    if (numeroLigneApres >= b.length || b[numeroLigneApres] == null) {
                                        ligneApres = "";
                                    } else {
                                        ligneApres = b[numeroLigneApres];
                                    }
                                }

                            } else {
                                stb.append("<tr>");
                                stb.append("<td class=\"ligne_modified\">" + numeroLigneAvant + "</td>");
                                stb.append("<td class=\"original_modified\">" + ligneAvant + "</td>");
                                stb.append("<td class=\"ligne_modified\">" + numeroLigneApres + "</td>");
                                stb.append("<td class=\"refactored_modified\">" + ligneApres + "</td>");
                                stb.append("</tr>");
                                numeroLigneAvant++;
                                numeroLigneApres++;
                                if (numeroLigneAvant >= a.length || a[numeroLigneAvant] == null) {
                                    ligneAvant = "";
                                } else {
                                    ligneAvant = a[numeroLigneAvant];
                                }
                                if (numeroLigneApres >= b.length || b[numeroLigneApres] == null) {
                                    ligneApres = "";
                                } else {
                                    ligneApres = b[numeroLigneApres];
                                }
                            }
                        }

                    }
                    next = next.link;
                } else {
                    stb.append("<tr>");
                    stb.append("<td class=\"ligne_normal\">" + numeroLigneAvant + "</td>");
                    stb.append("<td class=\"original_normal\">" + ligneAvant + "</td>");
                    stb.append("<td class=\"ligne_normal\">" + numeroLigneApres + "</td>");
                    stb.append("<td class=\"refactored_normal\">" + ligneApres + "</td>");
                    stb.append("</tr>");
                    numeroLigneAvant++;
                    numeroLigneApres++;
                }
            }
            stb.append("</table>");
            _sourceCode = stb.toString();
        } catch (IOException ex) {
            Logger.getLogger(SourceDetail.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    static String[] file2string(String file) throws IOException {

        BufferedReader rdr = new BufferedReader(new FileReader(file));
        Vector s = new Vector();
        for (;;) {
            String line = rdr.readLine();
            if (line == null) {
                break;
            }
            s.addElement(line);
        }
        String[] a = new String[s.size()];
        s.copyInto(a);
        return a;
    }

    public AbstractBuild<?, ?> getOwner() {

        return _owner;
    }

    public String getDisplayName() {

        return "Source Code of " + _fileBefore;
    }
}