Content of file ContentPresentationModelFactory.java.html
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="en"><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/><link rel="stylesheet" href="../../jacoco-resources/report.css" type="text/css"/><link rel="shortcut icon" href="../../jacoco-resources/report.gif" type="image/gif"/><title>ContentPresentationModelFactory.java</title><link rel="stylesheet" href="../../jacoco-resources/prettify.css" type="text/css"/><script type="text/javascript" src="../../jacoco-resources/prettify.js"></script></head><body onload="window['PR_TAB_WIDTH']=4;prettyPrint()"><div class="breadcrumb" id="breadcrumb"><span class="info"><a href="../../jacoco-sessions.html" class="el_session">Sessions</a></span><a href="../../index.html" class="el_report">Zephyr - UI Content Explorer</a> > <a href="../index.html" class="el_bundle">it-tidalwave-northernwind-rca-ui-commons</a> > <a href="index.source.html" class="el_package">it.tidalwave.northernwind.model.impl.admin.role</a> > <span class="el_source">ContentPresentationModelFactory.java</span></div><h1>ContentPresentationModelFactory.java</h1><pre class="source lang-java linenums"><span class="nc" id="L1">/*</span>
* #%L
* *********************************************************************************************************************
*
* NorthernWind - lightweight CMS
* http://northernwind.tidalwave.it - git clone git@bitbucket.org:tidalwave/northernwind-rca-src.git
* %%
* Copyright (C) 2013 - 2021 Tidalwave s.a.s. (http://tidalwave.it)
* %%
* *********************************************************************************************************************
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*
* *********************************************************************************************************************
*
*
* *********************************************************************************************************************
* #L%
*/
package it.tidalwave.northernwind.model.impl.admin.role;
import javax.annotation.Nonnull;
import java.beans.PropertyChangeSupport;
import java.util.Collection;
import java.util.WeakHashMap;
import it.tidalwave.util.Callback;
import it.tidalwave.util.NamedCallback;
import it.tidalwave.util.annotation.VisibleForTesting;
import it.tidalwave.role.ui.PresentationModel;
import it.tidalwave.role.ui.PresentationModelFactory;
import it.tidalwave.messagebus.annotation.ListensTo;
import it.tidalwave.messagebus.annotation.SimpleMessageSubscriber;
import it.tidalwave.northernwind.core.model.Content;
import it.tidalwave.northernwind.rca.ui.event.ContentCreatedEvent;
import lombok.extern.slf4j.Slf4j;
import static it.tidalwave.role.ui.PresentationModel.PROPERTY_CHILDREN;
import static it.tidalwave.util.Parameters.r;
/***********************************************************************************************************************
*
* An implementation of {@link PresentationModelFactory} for {@link Content} that keeps track of
* created instances and dispatches {@link ContentCreatedEvent}s to them. This to avoid that every single
* {@code ContentPresentationModel} subscribes to the message bus and have all of them but one to discard the received
* event if it's not related to their datum.
*
* @author Fabrizio Giudici
*
**********************************************************************************************************************/
<span class="fc" id="L56">@SimpleMessageSubscriber @Slf4j</span>
<span class="fc" id="L57">public class ContentPresentationModelFactory implements PresentationModelFactory</span>
{
<span class="fc" id="L59"> @VisibleForTesting final WeakHashMap<Content, PresentationModel> map = new WeakHashMap<>();</span>
@Override @Nonnull
public PresentationModel createPresentationModel (@Nonnull final Object datum,
@Nonnull final Collection<Object> roles)
{
<span class="fc" id="L65"> final Callback cb = NamedCallback.of(PresentationModel.CALLBACK_DISPOSE, () -></span>
{
<span class="fc" id="L67"> map.remove(datum);</span>
<span class="fc" id="L68"> log.debug(">>>> unregistered: {}", this);</span>
<span class="fc" id="L69"> });</span>
<span class="fc" id="L71"> final PresentationModel contentPM = PresentationModel.of(datum, r(cb, roles));</span>
<span class="fc" id="L72"> map.put((Content)datum, contentPM);</span>
<span class="fc" id="L73"> log.debug(">>>> created and registered: {}", contentPM);</span>
<span class="fc" id="L74"> return contentPM;</span>
}
@VisibleForTesting void onContentCreated (@ListensTo @Nonnull final ContentCreatedEvent event)
{
<span class="nc" id="L79"> log.debug("onContentCreated({})", event);</span>
// FIXME: map.getOptional(event.getParentContent()).ifPresent(cpm -> ...);
<span class="nc" id="L81"> final PresentationModel contentPM = map.get(event.getParentContent());</span>
<span class="nc bnc" id="L83" title="All 2 branches missed."> if (contentPM != null)</span>
{
<span class="nc" id="L85"> log.debug(">>>> dispatching {} to {}", event, contentPM);</span>
// FIXME: this is an undocumented feature
![[Jenkins]](/ci/static/0840cea4/images/svgs/logo.svg){kind=logo}
