CookieManager.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2020 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * 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 org.turro.elephant.cookies;
 
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.turro.elephant.context.ElephantContext;
import org.turro.file.FileWatch;
 
public class CookieManager extends Properties {
 
  /* Cookies' context */
  
  private static final String cookieFile = "/WEB-INF/elephant/conf/cookie-context.properties";
  
  private static CookieManager _cookies;
  private static long _lastLoad;
  
  public static CookieManager load() {
    boolean exists = FileWatch.exists(ElephantContext.getRealPath(cookieFile));
    if(_cookies == null || FileWatch.isNewer(ElephantContext.getRealPath(cookieFile), _lastLoad) || !exists) {
      if(exists) {
        try(FileInputStream fis = new FileInputStream(ElephantContext.getRealPath(cookieFile))) {
          _cookies = new CookieManager();
          _cookies.load(fis);
        } catch (IOException ex) {
          Logger.getLogger(CookieManager.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
        }
      } else {
        _cookies = new CookieManager();
      }
      _lastLoad = FileWatch.getTime(ElephantContext.getRealPath(cookieFile));
    }
    return _cookies;
  }
 
  private static void store() {
    try(FileOutputStream fos = new FileOutputStream(ElephantContext.getRealPath(cookieFile))) {
      _cookies.store(fos, null);
    } catch (IOException ex) {
      Logger.getLogger(CookieManager.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
  }
 
}