edgeoptimizer.java

jxta_src_2.41b jxta 2.41b 最新版源码 from www.jxta.org

/*
*  Copyright (c) 2001 Sun Microsystems, Inc.  All rights
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*
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*  if any, must include the following acknowledgment:
*  "This product includes software developed by the
*  Sun Microsystems, Inc. for Project JXTA."
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*  if and wherever such third-party acknowledgments normally appear.
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*  must not be used to endorse or promote products derived from this
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*  ====================================================================
*
*  This software consists of voluntary contributions made by many
*  individuals on behalf of Project JXTA.  For more
*  information on Project JXTA, please see
*  <http://www.jxta.org/>.
*
*  This license is based on the BSD license adopted by the Apache Foundation.
*
*  $Id: EdgeOptimizer.java,v 1.3 2006/06/08 04:31:09 gonzo Exp $
*/
package net.jxta.ext.config.optimizers;

import net.jxta.exception.ConfiguratorException;
import net.jxta.ext.config.BaseProperty;
import net.jxta.ext.config.Configurator;
import net.jxta.ext.config.Optimizer;

/**
 * Optimizer implementation that removes all RendezVous references for
 * prototypical edge profiles in which the instance is a relay client.
 *
 * @author  james todd [gonzo at jxta dot org]
 **/

public class EdgeOptimizer
    extends BaseProperty
    implements Optimizer {

    /**
     * Optimizer implementation which removes RendezVous references if
     * the profile:
     *
     * <ul>
     *   <li>has at least one rdv or seeding address is registered</li>
     *   <li>is not provisioning rdv services</li>
     *   <li>is configured to utilize discovered rdvs</li>
     *   <li>is a relay client</li>
     *   <li>has at least one relay or seeding address registered</li>
     * </ul>
     **/

    public void optimize(Configurator configurator) {
       if ((configurator.getRendezVous().size() > 0 ||
               configurator.getRendezVousBootstrapAddress() != null) &&
           ! configurator.isRendezVous() &&
           configurator.isRendezVousDiscovery() &&
           configurator.isRelayOutgoing() &&
           (configurator.getRelays().size() > 0 ||
               configurator.getRelaysBootstrapAddress() != null)) {
           configurator.clearRendezVous();

           try {
               configurator.setRendezVousBootstrapAddress(null);
           } catch (ConfiguratorException ce) {
           }
       } 
    }
}