content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library 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
   * Lesser General Public License for more details.
   *
   * For further information about Alkacon Software, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://www.opencms.org
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package org.opencms.pdftools;
  
  import org.opencms.main.CmsLog;
  
  import java.util.HashMap;
  import java.util.Map;
  import java.util.logging.Level;
  
  import org.apache.commons.logging.Log;
  
  import org.xhtmlrenderer.util.XRLog;
  import org.xhtmlrenderer.util.XRLogger;
  
  /**
   * Adaspter for sending xhtmlrenderer (flyingsaucer) log messages to the OpenCms log.<p>
   *
   * The log channels to which the log messages are sent start with the prefix 'org.opencms.' so that no
   * change in the log configuration is needed to make error messages appear in the log.<p>
   */
  public class CmsXRLogAdapter implements XRLogger {
  
      /** The prefix used for log channels. */
      public static final String OCMS_PREFIX = "org.opencms.";
  
      /** Default logger name. */
      private static final String DEFAULT_LOGGER_NAME = "org.xhtmlrenderer.other";
  
      /** The logger name map. */
      private static final Map<Object, String> LOGGER_NAME_MAP;
  
      static {
          LOGGER_NAME_MAP = new HashMap<Object, String>();
          LOGGER_NAME_MAP.put(XRLog.CONFIG, "org.xhtmlrenderer.config");
          LOGGER_NAME_MAP.put(XRLog.EXCEPTION, "org.xhtmlrenderer.exception");
          LOGGER_NAME_MAP.put(XRLog.GENERAL, "org.xhtmlrenderer.general");
          LOGGER_NAME_MAP.put(XRLog.INIT, "org.xhtmlrenderer.init");
          LOGGER_NAME_MAP.put(XRLog.JUNIT, "org.xhtmlrenderer.junit");
          LOGGER_NAME_MAP.put(XRLog.LOAD, "org.xhtmlrenderer.load");
          LOGGER_NAME_MAP.put(XRLog.MATCH, "org.xhtmlrenderer.match");
          LOGGER_NAME_MAP.put(XRLog.CASCADE, "org.xhtmlrenderer.cascade");
          LOGGER_NAME_MAP.put(XRLog.XML_ENTITIES, "org.xhtmlrenderer.load.xmlentities");
          LOGGER_NAME_MAP.put(XRLog.CSS_PARSE, "org.xhtmlrenderer.cssparse");
          LOGGER_NAME_MAP.put(XRLog.LAYOUT, "org.xhtmlrenderer.layout");
          LOGGER_NAME_MAP.put(XRLog.RENDER, "org.xhtmlrenderer.render");
      }
  
      /**
       * @see org.xhtmlrenderer.util.XRLogger#log(java.lang.String, java.util.logging.Level, java.lang.String)
       */
      public void log(String where, Level level, String msg) {
  
          Log log = CmsLog.getLog(getLoggerName(where));
          sendMessageToLogger(level, msg, log, null);
  
      }
  
      /**
       * @see org.xhtmlrenderer.util.XRLogger#log(java.lang.String, java.util.logging.Level, java.lang.String, java.lang.Throwable)
       */
      public void log(String where, Level level, String msg, Throwable th) {
  
          Log log = CmsLog.getLog(getLoggerName(where));
          sendMessageToLogger(level, msg, log, th);
      }
  
      /**
       * @see org.xhtmlrenderer.util.XRLogger#setLevel(java.lang.String, java.util.logging.Level)
       */
      public void setLevel(String logger, Level level) {
  
          throw new UnsupportedOperationException("setLevel not supported");
      }
  
      /**
       * Gets the real logger name.<p>
       *
       * @param xrLoggerName the XR logger name
       *
       * @return the real logger name
       */
      private String getLoggerName(String xrLoggerName) {
  
          String result = LOGGER_NAME_MAP.get(xrLoggerName);
          if (result != null) {
              return OCMS_PREFIX + result;
          } else {
              return OCMS_PREFIX + DEFAULT_LOGGER_NAME;
          }
      }
  
      /**
       * Sends a log message to the commons-logging interface.<p>
       *
       * @param level the log level
       * @param message the message
       * @param log the commons logging log object
       * @param e a throwable or null
       */
      private void sendMessageToLogger(Level level, String message, Log log, Throwable e) {
  
          if (e == null) {
              if (level == Level.SEVERE) {
                  log.error(message);
              } else if (level == Level.WARNING) {
                  log.warn(message);
              } else if (level == Level.INFO) {
                  log.info(message);
              } else if (level == Level.CONFIG) {
                  log.info(message);
              } else if ((level == Level.FINE) || (level == Level.FINER) || (level == Level.FINEST)) {
                  log.debug(message);
              } else {
                  log.info(message);
              }
          } else {
              if (level == Level.SEVERE) {
                  log.error(message, e);
              } else if (level == Level.WARNING) {
                  log.warn(message, e);
              } else if (level == Level.INFO) {
                  log.info(message, e);
              } else if (level == Level.CONFIG) {
                  log.info(message, e);
              } else if ((level == Level.FINE) || (level == Level.FINER) || (level == Level.FINEST)) {
                  log.debug(message, e);
              } else {
                  log.info(message, e);
              }
          }
      }
  
  }
  