/*
    Dateiverwaltung - File management in your browser
    Copyright (C) 2017 Ulrich Hilger, http://uhilger.de

    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.

    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 de.uhilger.wbx;

import java.io.File;
import java.util.logging.Logger;
import javax.servlet.ServletContext;

/**
 *
 */
public class WbxUtils {
  
  private static final Logger logger = Logger.getLogger(WbxUtils.class.getName());
  
  /**
   * Bei der WebBox ist das Datenverzeichnis relativ zum Verzeichnis 
   * $CATALINA_BASE/webapps untergebracht. 
   * Die Abfrage ServletContext.getRealPath 
   * liefert das Verzeichnis des Context dieser Webanwendung, also 
   * $CATALINA_BASE/webapps/file-cms
   * oder
   * $WBX/sys/base/webapps/file-cms
   * 
   * Unter Windows z.B.
   * C:\Users\fred\Documents\srv\wbx\sys\base\webapps\file-cms
   * Unter Linux oder Mac OS z.B.
   * /home/fred/srv/wbx/sys/base/webapps/file-cms
   * 
   * Das Datenverzeichis liegt dann auf 
   * $WBX/daten
   * 
   * Mit dem Verzeichnis des Context dieser Webanwendung ist das 
   * Datenverzeichnis der WebBox hart kodierbar mit dieser Methode
   * 
   * @return Verzeichnis 'daten' der WebBox
   */
  public static File getWbxDataDir(ServletContext ctx) {
    String path = ctx.getRealPath("/");
    logger.fine("getRealPath: " + path); // file-cms in webapps
    File file = new File(path);
    file = file.getParentFile().getParentFile().getParentFile().getParentFile();    
    file = new File(file, "daten/");
    logger.fine("Basis: " + file.getAbsolutePath());
    return file;
  }

}