Subscription.java :  » UnTagged » otsopack » otsopack » otsoME » network » communication » notifications » Android Open Source

/*
 * Copyright (C) 2008-2011 University of Deusto
 * 
 * All rights reserved.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution.
 * 
 * This software consists of contributions made by many individuals, 
 * listed below:
 *
 * Author: Aitor Gmez Goiri <aitor.gomez@deusto.es>
 */
package otsopack.otsoME.network.communication.notifications;

import otsopack.commons.data.ITemplate;
import otsopack.commons.data.impl.SemanticFactory;
import otsopack.commons.exceptions.MalformedTemplateException;
import otsopack.commons.network.communication.event.listener.INotificationListener;

public class Subscription implements ISubscription {
  String uri;
  ITemplate template;
  INotificationListener listener = null;
    
  protected Subscription(String uri, ITemplate template, INotificationListener listener) {
    this.uri = uri;
    this.template = template;
    this.listener = listener;
  }
  
  public String getURI() {
    return uri;
  }
  
  public ITemplate getTemplate() {
    return template;
  }
  
  public INotificationListener getListener() {
    return listener;
  }
  
  public boolean equals(Object obj) {
    return (obj instanceof ISubscription) &&
      ((ISubscription)obj).getURI().equals(uri) &&
      ((ISubscription)obj).getTemplate().equals(template);
  }
  
  public int hashCode() {
    return template.hashCode()+uri.hashCode();
  }
  
  public String toString(){
    return "<Subscription uri=\"" + this.uri + "\" template=\"" + this.template + "\" listener=\"" + this.listener + "\"/>";
  }
  
  public Object clone() {
    try {
      ITemplate clonedTemplate = new SemanticFactory().createTemplate(template.toString());
      String clonedURI = new String(uri);
      return NotificationsFactory.createSubscription(clonedURI, clonedTemplate, listener);
    } catch (MalformedTemplateException e) {
      //bad treatment, but it should never happen
      throw new RuntimeException(e.getMessage());
    }
  }
  
  public boolean matches(ITemplate selector) {
    return   template.match(selector);
  }
}