Logo
Distributed Genetic Programming Framework
print print

File org.dgpf.search.api.events.CSVSearchListener.java

Here you can find all the information about the file org.dgpf.search.api.events.CSVSearchListener.java. You may explore it here or download it onto your local disk.
/*
 * Copyright (c) 2006 Thomas Weise
 *
 * E-Mail           : tweise@gmx.de
 * Creation Date    : 2006-04-10 11:36:53
 * Original Filename: org.dgpf.search.api.events.CSVSearchListener.java
 * Version          : 2.0.0
 * Last modification: 2006-05-08
 *                by: Thomas Weise
 *
 * License          : GNU LESSER GENERAL PUBLIC LICENSE
 *                    Version 2.1, February 1999
 *                    You should have received a copy of this license along
 *                    with this library; if not, write to the Free Software
 *                    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *                    MA 02111-1307, USA or download the license under
 *                    http://www.gnu.org/copyleft/lesser.html.
 *
 * Warranty         : This software is provided "as is" 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.
 */


package org.dgpf.search.api.events;

import org.dgpf.search.api.SearchState;
import org.sfc.events.EventOutput;
import org.sfc.meta.MetaInformationWriter;
import org.sfc.utils.Typesafe;

/**
 * The csv search listener produces comma separated value output that
 * describes the search status.
 *
 * @author Thomas Weise
 */

public class CSVSearchListener  extends EventOutput
  {

/**
 * The search update event handler.
 */

  protected  static  final EventHandler<SearchUpdateEvent>
                                    SEARCH_UPDATE_EVENT_HANDLER =
        new EventHandler<SearchUpdateEvent>()
    {
    @Override
    protected final void handle_event(final SearchUpdateEvent  p_event,
                                      final EventOutput        p_output)
      {
      SearchUpdateEvent<?> l_su;
      if(p_output instanceof CSVSearchListener)
        {
        l_su = Typesafe.cast(p_event);
        ((CSVSearchListener)p_output).update(l_su);
        }
      }
    };

/**
 * <code>true</code> if and only if a headline is required to be written.
 */

  private       boolean m_need_headline ;
/**
 * The event output modulus.
 */

  private final int     m_mod ;
  
  
/**
 * Create a new csv search event output listener.
 * @param p_out       The output stream to write to.
 * @param p_mod             The event output modulo.
 */

  public  CSVSearchListener(final Object p_out,
                            final int    p_mod)
    {
    super(p_out);
    this.m_need_headline = true;
    this.add_handler(SearchUpdateEvent.class,
                                SEARCH_UPDATE_EVENT_HANDLER);
    this.m_mod = ((p_mod > 1) ? p_mod : 1);
    }
  
/**
 * Create a new csv search event output listener.
 * @param p_out       The output stream to write to.
 */

  public  CSVSearchListener(final Object p_out)
    {
    this(p_out, -1);
    }

/**
 * Receive a search update event.
 * @param p_sue The search update event.
 */

  final void  update  (final SearchUpdateEvent<?> p_sue)
    {
    SearchState<?> l_se;

    l_se = p_sue.get_state();
    if((l_se.get_update_count() % this.m_mod) == 0)
      {
      if(this.m_need_headline)
        {
        this.m_need_headline = false;
        MetaInformationWriter.print_csv_head(l_se, this);
        }
  
      MetaInformationWriter.print_csv_data(l_se, this);
      }
    }
  
  }

File Information:

file name:CSVSearchListener.java
package:org.dgpf.search.api.events
qualified name:org.dgpf.search.api.events.CSVSearchListener.java
file type:Java Source File
download location:download http://dgpf.sourceforge.net/source/org/dgpf/search/api/events/CSVSearchListener.java
size:3.451 KB (3534 B)
uploaded: 2015-07-22 04:11:00 GMT+0000
last update: 2006-05-11 10:43:30 GMT+0000
last access: 2017-11-20 18:48:32 GMT+0000

statistics online since 2006-01-02.   RSS Feed
Contact us by sending an email to tweise@gmx.de to receive further information, to report errors, or to join our project.
All content on this site (http://dgpf.sourceforge.net/) is LGPL-licensed.
http://dgpf.sourceforge.net/scripts/source/source.php last modified at 2015-07-22 04:10:53 GMT+0000 served at 2017-11-20 18:48:32 GMT+0000.
Valid CSS Valid XHTML 1.1
Valid RSS SourceForge.net Logo