/*
    * The Kuali Financial System, a comprehensive financial management system for higher education.
    * 
    * Copyright 2005-2014 The Kuali Foundation
    * 
    * 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.kuali.kfs.sys.context;
  
  import java.net.URL;
  import java.net.URLClassLoader;
  
  import org.apache.log4j.Logger;
  import org.apache.log4j.PropertyConfigurator;
  import org.kuali.kfs.sys.KFSConstants;
  
  public class Log4jConfigurer {
      private static final long MILLISECONDS_CONVERSION_MULTIPLIER = 60 * 1000;
  
      public static final void configureLogging(boolean doStartupStatsLogging) {
          String settingsFile = PropertyLoadingFactoryBean.getBaseProperty(KFSConstants.LOG4J_SETTINGS_FILE_KEY);
          String reloadMinutes = PropertyLoadingFactoryBean.getBaseProperty(KFSConstants.LOG4J_RELOAD_MINUTES_KEY);
          long reloadMilliseconds = 5 * MILLISECONDS_CONVERSION_MULTIPLIER;
          try {
              reloadMilliseconds = Long.parseLong(reloadMinutes) * MILLISECONDS_CONVERSION_MULTIPLIER;
          }
          catch (NumberFormatException ignored) {
              // default to 5 minutes
          }
          PropertyConfigurator.configureAndWatch(settingsFile, reloadMilliseconds);
          printClasspath();
      }
  
      private static void printClasspath() {
          StringBuffer classpath = new StringBuffer("Classpath is:\n");
          ClassLoader classloader = Thread.currentThread().getContextClassLoader();
          URL[] urls = ((URLClassLoader) classloader).getURLs();
          for (int i = 0; i < urls.length; i++) {
              classpath.append(urls[i].getFile()).append("; ");
          }
          Logger.getLogger(Log4jConfigurer.class).info(classpath.toString());
      }
  }