Examples of org.rssowl.core.persist.event.NewsEvent

org.rssowl.core.persist.event.NewsEvent

An Event-Object being used to notify Listeners, whenever the type INews was added, updated or deleted in the persistance layer.
In order to retrieve the Model-Object that is affected on the Event, use the resolve() Method of the ModelReference stored in this Event. @author bpasero

   * in the Publish-Date of the News, <code>FALSE</code> otherwise.
   */
  public static boolean isDateChange(Set< ? extends ModelEvent> events) {
    for (ModelEvent modelEvent : events) {
      if (modelEvent instanceof NewsEvent) {
        NewsEvent event = (NewsEvent) modelEvent;


        Date oldDate = event.getOldNews() != null ? DateUtils.getRecentDate(event.getOldNews()) : null;
        Date newDate = DateUtils.getRecentDate(event.getEntity());


        if (!newDate.equals(oldDate))
          return true;
      }
    }

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    NewsListener newsListener = null;
    try {
      newsListener = new NewsAdapter() {
        @Override
        public void entitiesAdded(Set<NewsEvent> events) {
          NewsEvent event = events.iterator().next();
          NewsAddedCalled[0] = true;
          initialFeed[0] = (Feed) initialNews.getFeedReference().resolve();
          initialAuthor[0] = (Person) initialNews.getAuthor();
          initialSource[0] = (Source) initialNews.getSource();
          initialGuid[0] = (Guid) initialNews.getGuid();
          final News dbNews = (News) event.getEntity();
          initialAuthor[0].setId(dbNews.getAuthor().getId());
          initialAuthor[0].isIdentical(dbNews.getAuthor());
          //FIXME Find a way to verify this without changing the id from the
          //event handler
//          initialNews.setId(dbNews.getId());
//          assertTrue(initialNews.isIdentical(dbNews));
        }


        @Override
        public void entitiesUpdated(Set<NewsEvent> events) {
          NewsEvent event = events.iterator().next();
          NewsUpdatedCalled[0] = true;
          News dbNews = (News) event.getEntity();
          assertTrue(updatedNews[0].isIdentical(dbNews));
        }
      };
      DynamicDAO.addEntityListener(INews.class, newsListener);
      INews news = DynamicDAO.save(initialNews);

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    //TODO Not sure about this, but let's do it for now to help us track a bug
    //in NewsService where never having a newsUpdated with a null oldNews is
    //helpful
    INews news = entity.getNews();
    INews oldNews = fDb.ext().peekPersisted(news, 2, true);
    NewsEvent newsEvent = new NewsEvent(oldNews, news, false);
    DBHelper.putEventTemplate(newsEvent);
    super.doDelete(entity);
  }

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    }
  }


  @Override
  protected final NewsEvent createDeleteEventTemplate(INews entity) {
    return new NewsEvent(null, entity, true);
  }

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  }


  @Override
  protected final NewsEvent createSaveEventTemplate(INews entity) {
    INews oldNews = DBHelper.peekPersistedNews(fDb, entity);
    return new NewsEvent(oldNews, entity, true);
  }

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    NewsListener newsListener = new NewsAdapter() {
      @Override
      public void entitiesUpdated(Set<NewsEvent> events) {
        assertEquals(1, events.size());
        NewsEvent event = events.iterator().next();
        assertEquals(true, event.getEntity().equals(savedNews));
        assertEquals(State.UNREAD, event.getOldNews().getState());
        assertEquals(State.UNREAD, event.getEntity().getState());
      }
    };
    DynamicDAO.addEntityListener(INews.class, newsListener);
    try {
      feed = DynamicDAO.save(feed);
    } finally {
      DynamicDAO.removeEntityListener(INews.class, newsListener);
    }
    newsListener = new NewsAdapter() {
      @Override
      public void entitiesUpdated(Set<NewsEvent> events) {
        assertEquals(1, events.size());
        NewsEvent event = events.iterator().next();
        assertEquals(savedNews.getId(), event.getEntity().getId());
        assertEquals(State.UNREAD, event.getOldNews().getState());
        assertEquals(State.UPDATED, event.getEntity().getState());
      }
    };
    DynamicDAO.addEntityListener(INews.class, newsListener);
    feed.getNews().get(0).setState(State.UPDATED);
    try {

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    NewsListener newsListener = new NewsAdapter() {
      @Override
      public void entitiesUpdated(Set<NewsEvent> events) {
        assertEquals(1, events.size());
        NewsEvent event = events.iterator().next();
        assertEquals(savedNewsId, event.getEntity().getId());
        assertEquals(State.UNREAD, event.getOldNews().getState());
        assertEquals(State.UNREAD, event.getEntity().getState());
      }
    };
    DynamicDAO.addEntityListener(INews.class, newsListener);
    try {
      savedNews = DynamicDAO.save(savedNews);
    } finally {
      DynamicDAO.removeEntityListener(INews.class, newsListener);
    }
    newsListener = new NewsAdapter() {
      @Override
      public void entitiesUpdated(Set<NewsEvent> events) {
        assertEquals(1, events.size());
        NewsEvent event = events.iterator().next();
        assertEquals(savedNewsId, event.getEntity().getId());
        assertEquals(State.UNREAD, event.getOldNews().getState());
        assertEquals(State.UPDATED, event.getEntity().getState());
      }
    };
    DynamicDAO.addEntityListener(INews.class, newsListener);
    savedNews.setState(State.UPDATED);
    try {

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   * otherwise.
   */
  public static boolean isNewStateChange(Set<? extends ModelEvent> events) {
    for (ModelEvent event : events) {
      if (event instanceof NewsEvent) {
        NewsEvent newsEvent = (NewsEvent) event;
        boolean oldStateNew = INews.State.NEW.equals(newsEvent.getOldNews() != null ? newsEvent.getOldNews().getState() : null);
        boolean currentStateNew = INews.State.NEW.equals(newsEvent.getEntity().getState());


        if (oldStateNew != currentStateNew)
          return true;
      }
    }

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   * otherwise.
   */
  public static boolean isStickyStateChange(Set<? extends ModelEvent> events) {
    for (ModelEvent event : events) {
      if (event instanceof NewsEvent) {
        NewsEvent newsEvent = (NewsEvent) event;
        boolean oldSticky = (newsEvent.getOldNews() != null) ? newsEvent.getOldNews().isFlagged() : false;
        boolean currentSticky = newsEvent.getEntity().isFlagged();


        if (oldSticky != currentSticky)
          return true;
      }
    }

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   * UNREAD to a different one, <code>FALSE</code> otherwise.
   */
  public static boolean isReadStateChange(Set<? extends ModelEvent> events) {
    for (ModelEvent event : events) {
      if (event instanceof NewsEvent) {
        NewsEvent newsEvent = (NewsEvent) event;
        boolean oldStateUnread = isUnread(newsEvent.getOldNews() != null ? newsEvent.getOldNews().getState() : null);
        boolean newStateUnread = isUnread(newsEvent.getEntity().getState());


        if (oldStateUnread != newStateUnread)
          return true;
      }
    }

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