/*
    * Copyright (c) 2001-2017, Zoltan Farkas All Rights Reserved.
    *
    * 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 General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
   *
   * Additionally licensed with:
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.spf4j.log;
  
  import java.util.EnumMap;
  import java.util.Map;
  import org.spf4j.base.avro.LogLevel;
  
  
  /**
   * An enum for log levels
   * @author Zoltan Farkas
   */
  public enum Level {
    TRACE(java.util.logging.Level.FINEST),
    DEBUG(java.util.logging.Level.FINE),
    INFO(java.util.logging.Level.INFO),
    WARN(java.util.logging.Level.WARNING),
    ERROR(java.util.logging.Level.SEVERE),
    OFF(java.util.logging.Level.OFF);
  
  
    static final class Lazy {
      private static final Map<Level, LogLevel> CONVERT_MAP = new EnumMap<>(Level.class);
      static {
        CONVERT_MAP.put(TRACE, LogLevel.TRACE);
        CONVERT_MAP.put(DEBUG, LogLevel.DEBUG);
        CONVERT_MAP.put(INFO, LogLevel.INFO);
        CONVERT_MAP.put(WARN, LogLevel.WARN);
        CONVERT_MAP.put(ERROR, LogLevel.ERROR);
        CONVERT_MAP.put(OFF, LogLevel.UNKNOWN);
      }
    }
  
    private final java.util.logging.Level julLevel;
  
    Level(final java.util.logging.Level julLevel) {
      this.julLevel = julLevel;
    }
  
    public int getIntValue() {
      return julLevel.intValue();
    }
  
    public java.util.logging.Level getJulLevel() {
      return julLevel;
    }
  
    public LogLevel getAvroLevel() {
      return Lazy.CONVERT_MAP.get(this);
    }
  
    public static Level fromAvroLevel(final LogLevel level) {
      switch (level) {
        case UNKNOWN:
        case DEBUG:
          return Level.DEBUG;
        case ERROR:
          return Level.ERROR;
        case INFO:
          return Level.INFO;
        case TRACE:
          return Level.TRACE;
        case WARN:
          return Level.WARN;
        default:
          throw new IllegalArgumentException("Unsupported LogLevel " + level);
      }
    }
  
 
   public static Level fromJulLevel(final int severity) {
      if (severity <= TRACE.getIntValue()) {
           return TRACE;
     } else if (severity <= DEBUG.getIntValue()) {
       return DEBUG;
     } else if (severity <= INFO.getIntValue()) {
       return INFO;
     } else if (severity <= WARN.getIntValue()) {
       return WARN;
     } else if (severity <= ERROR.getIntValue()) {
       return ERROR;
     } else {
       return OFF;
     }
   }
 
 }