code: /*
   * Computoser is a music-composition algorithm and a website to present the results
   * Copyright (C) 2012-2014  Bozhidar Bozhanov
   *
   * Computoser 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.
   *
   * Computoser 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 Computoser.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package com.music.util.music;
  
  import java.lang.reflect.Field;
  import java.util.HashMap;
  import java.util.Map;
  
  import jm.constants.ProgramChanges;
  
  import org.apache.commons.lang3.text.WordUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class InstrumentNameExtractor {
      private static final Logger logger = LoggerFactory.getLogger(InstrumentNameExtractor.class);
  
      private static Map<Integer, String> names = new HashMap<>();
      static {
          try {
              Field[] fields = ProgramChanges.class.getDeclaredFields();
              for (Field field : fields) {
                  Integer id = (Integer) field.get(null);
                  if (!names.containsKey(id)) {
                      names.put(id, WordUtils.capitalizeFully(field.getName()).replace('_', ' '));
                  }
              }
  
          } catch (Exception ex) {
              logger.warn("Failed to extract instrument names", ex);
          }
      }
      public static String getInstrumentName(int instrument) {
          return names.get(instrument);
      }
  }
  