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File org.dgpf.search.algorithms.sa.p2p.adaption.DefaultP2PSAAdapter.java

Here you can find all the information about the file org.dgpf.search.algorithms.sa.p2p.adaption.DefaultP2PSAAdapter.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    : 2006-06-05 13:27:42
 * Created by       : Stefan Niemczyk, Marc Kirchhoff
 * Original Filename: org.dgpf.search.algorithms.sa.p2p.adaption.DefaultP2PSAAdationStrategy.java
 * Version          : 1.0.1
 * Last modification: 2006-06-22
 *                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.algorithms.sa.p2p.adaption;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import org.dgpf.search.algorithms.sa.adaptation.DefaultSAAdapter;
import org.dgpf.search.algorithms.sa.p2p.P2PSAParameters;
import org.dgpf.search.algorithms.sa.p2p.P2PSAState;
import org.dgpf.search.api.AdaptationStrategy;
import org.dgpf.search.api.SearchState;
import org.dgpf.search.api.p2p.P2PAdaptationStrategy;
import org.dgpf.search.api.p2p.P2PParameters;
import org.dgpf.search.api.p2p.adaptation.DefaultP2PAdapter;
import org.sfc.utils.Typesafe;

/**
 * The default adapter for peer-to-peer extended simulated annealing
 * searches.
 *
 * @author Stefan Niemczyk, Marc Kirchhoff
 */

public class DefaultP2PSAAdapter extends DefaultSAAdapter
{
/**
 * The serial version uid.
 */

  private static final long serialVersionUID            = 1;

  
/**
 * The peer-to-peer adaptation strategy.
 */

  private transient P2PAdaptationStrategy m_p2p_adapt ;

/**
 * Create a new stateful adaptation strategy.
 * @param p_parameters  The search parameter set to be adapted.
 */

  public DefaultP2PSAAdapter(final P2PSAParameters<?> p_parameters)
    {
    super(p_parameters);
    this.m_p2p_adapt = this.create_p2p_adapter(
                              p_parameters.get_p2p_parameters());
    }

/**
 * Create a new stateful adaptation strategy by using another search
 * adaptation strategy as blueprint.
 * @param p_parameters  The search parameter set to be adapted.
 * @param p_strategy    The blueprint to copy the internal data from.
 */

  public  DefaultP2PSAAdapter(final P2PSAParameters<?> p_parameters,
                                   final AdaptationStrategy      p_strategy)
    {
    super(p_parameters, p_strategy);
    this.m_p2p_adapt = this.create_p2p_adapter(
                              p_parameters.get_p2p_parameters());
    }
  
/**
 * The internal routine used to create the adaptation strategy for the
 * peer-to-peer-nodes.
 * @param p_parameters  The parameter set to adapt.
 * @return  The new p2p-adaptation strategy.
 */

  protected P2PAdaptationStrategy create_p2p_adapter(
                              final P2PParameters p_parameters)
    {
    return new DefaultP2PAdapter(p_parameters);
    }

/**
 * Obtain the peer-to-peer adaptation strategy.
 * @return The peer-to-peer adaptation strategy.
 */

  public  final P2PAdaptationStrategy get_p2p_adaptation_strategy ()
    {
    return this.m_p2p_adapt;
    }

/**
 * Set the peer-to-peer adaptation strategy.
 * @param p_strategy The peer-to-peer adaptation strategy to be used.
 */

  public  final void  set_p2p_adaptation_strategy
                        (final P2PAdaptationStrategy p_strategy)
    {
    P2PSAParameters<?> l_g;

    if(p_strategy != null)
      {
      l_g = Typesafe.cast(this.get_parameters());
      l_g.get_p2p_parameters().notify_strategy(p_strategy);
      this.m_p2p_adapt = p_strategy;
      }
    }

/**
 * This method will be called by the search engine whenever it feels like
 * it is time to adapt the current search parameters to the current search
 * state. If you override this method, you must also declare your class
 * as instance of <code>ICloneable</code>.
 * @param p_state The current state of the search.
 * @return  <code>true</code> if and only if the update level should be
 *          resetted, <code>false</code> if everything should continue
 *          normal.
 * @see SearchState#get_update_level()
 */

  @Override
  protected boolean  adapt (final SearchState<?> p_state)
    {
    P2PSAState<?> l_p;

    if(super.adapt(p_state)) return true;

    l_p = Typesafe.cast(p_state);
    return this.m_p2p_adapt.adapt(p_state, l_p.get_p2p_state());
    }

/**
 * This method will be called whenever the search parameters perform a
 * reset, meaning that the search level is set back to 0.
 */

 @Override
  public void  reset ()
    {
    super.reset();
    this.m_p2p_adapt.reset();
    }



/**
 * Stores the <code>SfcEvent</code> into the stream.
 * @param p_s The output stream.
 * @throws  IOException If something io-like went wrong.
 */

  private final void writeObject(final ObjectOutputStream p_s)
        throws IOException
    {
    p_s.defaultWriteObject();
    p_s.writeUnshared(this.m_p2p_adapt);
    }



/**
 * Reconstitute the <code>SfcEvent</code> instance from a stream (that is,
 * deserialize it).
 * @param p_s The input stream.
 * @throws  IOException If something io-like went wrong.
 * @throws  ClassNotFoundException  If a needed class could not be found.
 */

  private final void readObject(final ObjectInputStream p_s)
        throws IOException, ClassNotFoundException
    {
    P2PAdaptationStrategy   l_c;
    P2PSAParameters<?> l_p;

    p_s.defaultReadObject();
    l_c = ((P2PAdaptationStrategy)(p_s.readUnshared()));
    l_p = Typesafe.cast(this.get_parameters());
    l_p.get_p2p_parameters().notify_strategy(l_c);
    this.m_p2p_adapt = l_c;
    }
}

File Information:

file name:DefaultP2PSAAdapter.java
package:org.dgpf.search.algorithms.sa.p2p.adaption
qualified name:org.dgpf.search.algorithms.sa.p2p.adaption.DefaultP2PSAAdapter.java
file type:Java Source File
download location:download http://dgpf.sourceforge.net/source/org/dgpf/search/algorithms/sa/p2p/adaption/DefaultP2PSAAdapter.java
size:6.204 KB (6353 B)
uploaded: 2018-01-07 12:03:35 GMT+0000
last update: 2006-06-22 13:16:37 GMT+0000
last access: 2018-01-07 12:03:35 GMT+0000

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Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/project-web/dgpf/htdocs/scripts/datetime.php on line 16

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/project-web/dgpf/htdocs/scripts/datetime.php on line 16
last modified at 2018-01-07 12:03:34 GMT+0000
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