package fr.ifremer.quadrige3.ui.core.dto;
   
   /*
    * #%L
    * Dali :: Core
    * $Id:$
    * $HeadURL:$
    * %%
    * Copyright (C) 2014 - 2015 Ifremer
   * %%
   * 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 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/>.
   * #L%
   */
  import org.jdesktop.beans.AbstractBean;
  import org.nuiton.util.CollectionUtil;
  
  import java.util.Collection;
  import java.util.List;
  import java.util.Objects;
  
  /**
   * Abstract Dali bean.
   */
  public abstract class QuadrigeAbstractBean extends AbstractBean implements QuadrigeBean, Comparable<QuadrigeBean> {
  
      private static final long serialVersionUID = 1L;
  
      protected Integer id;
  
      /** {@inheritDoc} */
      @Override
      public Integer getId() {
          return id;
      }
  
      /** {@inheritDoc} */
      @Override
      public void setId(Integer id) {
          this.id = id;
      }
  
      /** {@inheritDoc} */
      @Override
      public int hashCode() {
          if (id != null) {
              return id;
          }
          // specific cases of QuadrigeBean without id
          else if (this instanceof CodeOnly) {
              return Objects.hashCode(((CodeOnly) this).getCode());
          }
          else {
              return super.hashCode();
          }
      }
  
      /** {@inheritDoc} */
      @Override
      public boolean equals(Object o) {
          if (this == o) {
              return true;
          }
          if (o == null) {
              return false;
          }
  
          if (!(o instanceof QuadrigeAbstractBean)) {
              return false;
          }
          if (!comparableClass(o.getClass())) {
              // not same class
              return false;
          }
  
          QuadrigeAbstractBean that = (QuadrigeAbstractBean) o;
  
          return this.hashCode() == that.hashCode();
      }
  
      private boolean comparableClass(Class<?> aClass) {
          return getClass().equals(aClass)
                  || getClass().isAssignableFrom(aClass)
                  || aClass.isAssignableFrom(getClass());
      }
  
      /** {@inheritDoc} */
      @Override
      public final int compareTo(QuadrigeBean o) {
         return Integer.compare(hashCode(), o.hashCode());
     }
 
     /** {@inheritDoc} */
     @Override
     public String toString() {
         return String.format("%s: %s", super.toString(), hashCode());
     }
 
     /**
      * <p>getChild.</p>
      *
      * @param child a {@link Collection} object.
      * @param index a int.
      * @param <B> a B object.
      * @return a B object.
      */
     protected <B> B getChild(Collection<B> child, int index) {
         return CollectionUtil.getOrNull(child, index);
     }
 
     /**
      * <p>getChild.</p>
      *
      * @param child a {@link List} object.
      * @param index a int.
      * @param <B> a B object.
      * @return a B object.
      */
     protected <B> B getChild(List<B> child, int index) {
         return CollectionUtil.getOrNull(child, index);
     }
 }