org.silverpeas.settings.file.ModifText.java Source code

Introduction

Here is the source code for org.silverpeas.settings.file.ModifText.java

Source

/**
 * Copyright (C) 2000 - 2012 Silverpeas
 *
 * This program is free software: you can redistribute it and/or modify it under the terms of the
 * GNU Affero General Public License as published by the Free Software Foundation, either version 3
 * of the License, or (at your option) any later version.
 *
 * As a special exception to the terms and conditions of version 3.0 of the GPL, you may
 * redistribute this Program in connection with Free/Libre Open Source Software ("FLOSS")
 * applications as described in Silverpeas's FLOSS exception. You should have received a copy of the
 * text describing the FLOSS exception, and it is also available here:
 * "http://www.silverpeas.org/docs/core/legal/floss_exception.html"
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License along with this program.
 * If not, see <http://www.gnu.org/licenses/>.
 */
package org.silverpeas.settings.file;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class ModifText extends ModifFile {

    /**
     * @constructor prend en paramtre le chemin du fichier a modifier
     */
    public ModifText(String path) throws Exception {
        super.setPath(path);
    }

    /**
     * ajoute des modifications sous forme de tableau de chaine "key=replace"
     */
    public void setModif(String str[]) throws Exception {
        for (int i = 0; i < str.length; i++) {
            this.addModification(str[i]);
        }
    }

    /**
     * analyse une ligne du fichier
     */
    protected String analyseLigne(String line) {
        String tmpLine = line;
        for (ElementModif modif : listeModifications) {
            tmpLine = analyseLine(tmpLine, modif);
        }
        if (tmpLine != null && tmpLine.isEmpty()) {
            tmpLine = line;
        }
        return tmpLine;
    }

    protected String analyseLine(String line, ElementModif modification) {
        StringBuffer resStr = new StringBuffer();
        if (modification instanceof RegexpElementMotif) {
            RegexpElementMotif emv = (RegexpElementMotif) modification;
            Pattern pattern = emv.getPattern();
            Matcher match = pattern.matcher(line);
            while (match.find()) {
                match.appendReplacement(resStr, emv.getRemplacement());
            }
            match.appendTail(resStr);
        } else {
            // remplace uniquement la derniere occurence de chaque ligne
            int res = line.lastIndexOf(modification.getSearch());
            if (res != -1) {
                resStr.append(line.substring(0, res)).append(modification.getModif())
                        .append(line.substring((res + modification.getSearch().length()), line.length()));
            }
        }
        return resStr.toString().trim();
    }

    /**
     * lance la modification du fichier Attention la modification s'effectue par ligne du fichier
     */
    @Override
    public void executeModification() throws Exception {
        File inFile = new File(path);
        List<String> lines = FileUtils.readLines(inFile);
        List<String> newLines = new ArrayList<String>(lines.size());
        for (String line : lines) {
            newLines.add(analyseLigne(line));
        }
        FileUtils.writeLines(inFile, newLines);
        // Specifique Linux/Solaris: on met le fichier de script en executable
        if ((path.endsWith(".sh") || path.endsWith(".csh") || path.endsWith(".ksh"))
                && IOUtils.DIR_SEPARATOR_UNIX == File.separatorChar) {
            String[] commande = new String[3];
            commande[0] = "/bin/chmod";
            commande[1] = "755";
            commande[2] = path;
            Runtime.getRuntime().exec(commande);
        }
    }
}