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 jm.JMC;
  import jm.music.data.Note;
  
  /**
   * Needed to intercept note creation, due to the System.exit(..) in the note constructor
   * @author bozho
   *
   */
  public class NoteFactory {
  
      public static Note createNote(int pitch, double length) {
          validatePitch(pitch);
          return new Note(pitch, length);
      }
  
  
      public static Note createNote(int pitch, double length, int dynamics) {
          validatePitch(pitch);
          return new Note(pitch, length, dynamics);
      }
  
      private static void validatePitch(int pitch) {
          if (pitch < 0 && pitch != JMC.REST) {
              throw new IllegalArgumentException("Pitch cannot be less than zero, but " + pitch + " is passed");
          }
      }
  }
  