Content of file DiaryPhotoCollectionProvider.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>DiaryPhotoCollectionProvider.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">blueMarine II :: Headless Service</a> > <a href="../index.html" class="el_bundle">it-tidalwave-bluemarine2-services-stoppingdown</a> > <a href="index.source.html" class="el_package">it.tidalwave.bluemarine2.service.stoppingdown.impl</a> > <span class="el_source">DiaryPhotoCollectionProvider.java</span></div><h1>DiaryPhotoCollectionProvider.java</h1><pre class="source lang-java linenums">/*
* *********************************************************************************************************************
*
* blueMarine II: Semantic Media Centre
* http://tidalwave.it/projects/bluemarine2
*
* Copyright (C) 2015 - 2021 by 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.
*
* *********************************************************************************************************************
*
* git clone https://bitbucket.org/tidalwave/bluemarine2-src
* git clone https://github.com/tidalwave-it/bluemarine2-src
*
* *********************************************************************************************************************
*/
package it.tidalwave.bluemarine2.service.stoppingdown.impl;
import javax.annotation.Nonnull;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.stream.IntStream;
import java.io.IOException;
import java.nio.file.Paths;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathExpressionException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import it.tidalwave.util.annotation.VisibleForTesting;
import it.tidalwave.bluemarine2.model.MediaFolder;
import it.tidalwave.bluemarine2.model.VirtualMediaFolder;
import it.tidalwave.bluemarine2.model.VirtualMediaFolder.EntityCollectionFactory;
import it.tidalwave.bluemarine2.model.spi.PathAwareEntity;
import it.tidalwave.bluemarine2.model.spi.PathAwareFinder;
import lombok.extern.slf4j.Slf4j;
import static java.util.Comparator.*;
import static java.util.stream.Collectors.*;
import static javax.xml.xpath.XPathConstants.NODESET;
/***********************************************************************************************************************
*
* @author Fabrizio Giudici
*
**********************************************************************************************************************/
<span class="fc" id="L62">@Slf4j</span>
public class DiaryPhotoCollectionProvider extends PhotoCollectionProviderSupport
{
private static final String URL_DIARY_TEMPLATE = "%s/diary/%d/";
private static final String REGEXP_URL_HOST_AND_PORT = "http:\\/\\/[^\\/]*";
private static final XPathExpression XPATH_DIARY_EXPR;
/**
* A local cache for themes is advisable because multiple calls will be performed.
*/
<span class="fc" id="L74"> private final Map<Integer, List<GalleryDescription>> diaryCache = new ConcurrentHashMap<>();</span>
/*******************************************************************************************************************
*
******************************************************************************************************************/
static
{
try
{
<span class="fc" id="L83"> final XPath xpath = XPATH_FACTORY.newXPath();</span>
<span class="fc" id="L84"> XPATH_DIARY_EXPR = xpath.compile("//div[@class='nw-calendar']//li/a");</span>
}
<span class="nc" id="L86"> catch (XPathExpressionException e)</span>
{
<span class="nc" id="L88"> throw new ExceptionInInitializerError(e);</span>
<span class="fc" id="L89"> }</span>
<span class="fc" id="L90"> }</span>
/*******************************************************************************************************************
*
******************************************************************************************************************/
public DiaryPhotoCollectionProvider()
{
<span class="fc" id="L97"> this(URL_STOPPINGDOWN);</span>
<span class="fc" id="L98"> }</span>
/*******************************************************************************************************************
*
******************************************************************************************************************/
public DiaryPhotoCollectionProvider (@Nonnull final String baseUrl)
{
<span class="fc" id="L105"> super(baseUrl);</span>
<span class="fc" id="L106"> }</span>
/*******************************************************************************************************************
*
******************************************************************************************************************/
@Override
@Nonnull
public PathAwareFinder findPhotos(@Nonnull final MediaFolder parent) {
<span class="fc" id="L114"> return parent.finderOf(</span>
<span class="fc" id="L115"> p1 -> IntStream.range(1999, 2016 + 1) // FIXME: use current year</span>
<span class="fc" id="L116"> .boxed()</span>
<span class="fc" id="L117"> .map(year -> new VirtualMediaFolder(p1,</span>
<span class="fc" id="L118"> Paths.get("" + year),</span>
"" + year,
<span class="fc" id="L120"> (EntityCollectionFactory)(p2 -> entriesFactory(p2, year))))</span>
<span class="fc" id="L121"> .collect(toList()));</span>
}
/*******************************************************************************************************************
*
* {@inheritDoc}
*
******************************************************************************************************************/
@Override
protected void clearCachesImpl()
{
<span class="fc" id="L132"> super.clearCachesImpl();</span>
<span class="fc" id="L133"> diaryCache.clear();</span>
<span class="fc" id="L134"> }</span>
/*******************************************************************************************************************
*
******************************************************************************************************************/
@Nonnull
private Collection<PathAwareEntity> entriesFactory (@Nonnull final MediaFolder parent, final int year)
{
<span class="fc" id="L142"> return parseDiary(year).stream().map(gallery -> gallery.createFolder(parent, this::findPhotos))</span>
<span class="fc" id="L143"> .collect(toList());</span>
}
/*******************************************************************************************************************
*
******************************************************************************************************************/
@Nonnull
@VisibleForTesting List<GalleryDescription> parseDiary (final int year)
{
<span class="fc" id="L152"> final String diaryUrl = String.format(URL_DIARY_TEMPLATE, baseUrl, year);</span>
<span class="fc" id="L153"> log.debug("parseDiary({})", diaryUrl);</span>
<span class="fc" id="L155"> return diaryCache.computeIfAbsent(year, key -></span>
{
try
{
<span class="fc" id="L159"> final Document document = downloadXml(diaryUrl);</span>
<span class="fc" id="L160"> final NodeList entryNodes = (NodeList)XPATH_DIARY_EXPR.evaluate(document, NODESET);</span>
<span class="fc" id="L161"> final List<GalleryDescription> galleryDescriptions = new ArrayList<>();</span>
<span class="fc bfc" id="L163" title="All 2 branches covered."> for (int i = 0; i < entryNodes.getLength(); i++)</span>
{
<span class="fc" id="L165"> final Node entryNode = entryNodes.item(i);</span>
<span class="fc" id="L166"> final String href = getAttribute(entryNode, "href").replaceAll(REGEXP_URL_HOST_AND_PORT, "");</span>
<span class="fc" id="L167"> final String url = String.format(URL_GALLERY_TEMPLATE, baseUrl, href).replace("//", "/")</span>
<span class="fc" id="L168"> .replace(":/", "://")</span>
<span class="fc" id="L169"> .replaceAll("(^.*)\\/([0-9]{2})\\/([0-9]{2})\\/(.*)$", "$1/$2-$3/$4");</span>
<span class="fc" id="L170"> final String date = href.substring(href.length() - 11, href.length() - 1);</span>
<span class="fc" id="L171"> final String displayName = date + " - " + entryNode.getTextContent();</span>
<span class="fc" id="L172"> galleryDescriptions.add(new GalleryDescription(displayName, url));</span>
}
<span class="fc" id="L175"> galleryDescriptions.sort(comparing(GalleryDescription::getUrl));</span>
<span class="fc" id="L177"> return galleryDescriptions;</span>
}
<span class="nc" id="L179"> catch (SAXException | IOException | XPathExpressionException | ParserConfigurationException e)</span>
{
<span class="nc" id="L181"> throw new RuntimeException(e);</span>
}
});
}
}
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