package pnews.servlet;
import java.io.IOException;
-import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
}
private static SyndFeed getSyndFeed(String u) throws IllegalArgumentException, FeedException, MalformedURLException, IOException {
- InputStream is;
XmlReader r;
r = new XmlReader(new URL(u));
- XmlReader.setDefaultEncoding("UTF-8");
-
- return new SyndFeedInput().build(r);
+ return new SyndFeedInput().build(r);
}
private static Map<Category, String[]> getFeeds() {
result.put(Category.ESSONNE,
new String[] { "http://www.tourisme-essonne.com/rss/actus/",
- "http://www.ville-palaiseau.fr/rss/actualites.htm"
- /*"https://www.essonneinfo.fr/feed/"*/ });
+ "http://www.ville-palaiseau.fr/rss/actualites.htm" });
result.put(Category.PEOPLE,
new String[] { "http://www.premiere.fr/rss/actu-live",
result.put(Category.TECHNOLOGIE,
new String[] { "http://feeds.feedburner.com/lesnumeriques/news",
- "http://www.zdnet.fr/feeds/rss/actualites/"});
+ "http://www.zdnet.fr/feeds/rss/actualites/",
+ "https://www-03.ibm.com/press/fr/fr/rssfeed.wss?keyword=null&maxFeed=&feedType=RSS&topic=all"});
return result;
}
- private void addArticles(Category cat, SyndFeed feed) {
- String thumbnail;
- String desc, link, title, feedTitle, feedImage;
+ private List<Article> getArticlesForUpdate(Category cat) {
+ List<Article> result;
+
+ synchronized (articlesByCategory) {
+ result = articlesByCategory.get(cat);
+ if (result == null) {
+ result = new ArrayList<>();
+ articlesByCategory.put(cat, result);
+ }
+ return result;
+ }
+ }
+
+ private boolean exists(String articleLink, List<Article> articles) {
+ synchronized (articles) {
+ for (Article a: articles)
+ if (a.link.equals(articleLink))
+ return true;
+ }
+ return false;
+ }
+
+ private static Article toArticle(String link, SyndEntry entry, SyndFeed feed) {
+ String desc, title, thumbnail, feedTitle, str;
Date date;
+
+ feedTitle = feed.getTitle();
+ if (feedTitle != null) {
+ feedTitle = feedTitle.trim();
+ }
+
+ thumbnail = null;
+ for (SyndEnclosure e: entry.getEnclosures()) {
+ if (e.getType().startsWith("image/"))
+ thumbnail = e.getUrl();
+ break;
+ }
+
+ if (thumbnail == null && feed.getImage() != null)
+ thumbnail = feed.getImage().getUrl();
+
+
+ title = entry.getTitle().trim();
+
+ if (entry.getDescription() != null) {
+ str = entry.getDescription().getValue();
+ desc = Jsoup.parse(str).text();
+ } else {
+ desc = null;
+ LOG.severe("No description for " + feedTitle + " - " + title);
+ }
+
+ date = entry.getPublishedDate();
+ if (date == null)
+ date = entry.getUpdatedDate();
+ if (date == null)
+ LOG.severe("The article " + feedTitle + " - " + title + " does not have a date");
+
+ return new Article(link, title, desc, thumbnail, date, feedTitle);
+ }
+
+ private void addArticles(Category cat, SyndFeed feed) {
+ String feedTitle;
List<Article> articles;
- boolean exist;
+ Article a;
feedTitle = feed.getTitle().trim();
- if (feed.getImage() != null)
- feedImage = feed.getImage().getUrl();
- else
- feedImage = null;
-
LOG.info("addArticles " + cat.getId() + " " + feedTitle + " number of articles: " + feed.getEntries().size());
for (SyndEntry entry: feed.getEntries()) {
- thumbnail = null;
- for (SyndEnclosure e: entry.getEnclosures()) {
- if (e.getType().startsWith("image/"))
- thumbnail = e.getUrl();
- break;
+ String link = entry.getLink().trim();
+ articles = getArticlesForUpdate(cat);
+ if (exists(link, articles)) {
+ LOG.fine("addArticles " + link + " is already present");
+ continue ;
}
- if (thumbnail == null)
- thumbnail = feedImage;
-
- title = entry.getTitle().trim();
- if (entry.getDescription() != null) {
- desc = Jsoup.parse(entry.getDescription().getValue()).text();
- } else {
- desc = null;
- LOG.severe("No description for " + feedTitle + " - " + title);
- }
-
- date = entry.getPublishedDate();
- if (date == null)
- date = entry.getUpdatedDate();
- if (date == null) {
- LOG.severe("The article " + feedTitle + " - " + title + " does not have a date");
- continue;
- }
+ a = ArticleStore.singleton.getArticle(link, ()->toArticle(link, entry, feed));
- synchronized(articlesByCategory) {
- link = entry.getLink().trim();
-
- articles = articlesByCategory.get(cat);
- exist = false;
- if (articles == null) {
- articles = new ArrayList<>();
- articlesByCategory.put(cat, articles);
- } else {
- for (Article a: articles)
- if (a.link.equals(link)) {
- LOG.fine("addArticles " + link + " is already present");
- exist = true;
- }
- }
-
- if (!exist) {
- LOG.fine("add " + cat.getId() + " " + feedTitle + " " + title);
-
- articles.add(new Article(link, cat, title, desc, thumbnail, date,
- feed.getTitle()));
-
- Collections.sort(articles, new Comparator<Article>() {
- @Override
- public int compare(Article o1, Article o2) {
- return o2.publicationDate.compareTo(o1.publicationDate);
- }
+ synchronized (articles) {
+ articles.add(a);
- });
- } else {
- LOG.finest("addArticles already exist: " + title);
- }
+ Collections.sort(articles, new Comparator<Article>() {
+ @Override
+ public int compare(Article o1, Article o2) {
+ if (o1.publicationDate == o2.publicationDate)
+ return 0;
+ if (o1.publicationDate == null)
+ return 1;
+ if (o2.publicationDate == null)
+ return -1;
+ return o2.publicationDate.compareTo(o1.publicationDate);
+ }
+ });
}
}
LOG.info("addArticles done " + cat.getId());
}
-
+
private void retrieveArticles(Category cat) throws IllegalArgumentException, MalformedURLException, FeedException, IOException {
String[] feeds;
LOG.severe("No feed for category " + cat);
}
+ /**
+ * Returns a copy.
+ */
public List<Article> getArticles(Category cat)
throws IllegalArgumentException, MalformedURLException, FeedException, IOException {
+ List<Article> articles;
+
synchronized (articlesByCategory) {
- return articlesByCategory.get(cat);
+ articles = getArticlesForUpdate(cat);
+ }
+
+ synchronized (articles) {
+ return new ArrayList<>(articles);
}
}
}
@Override
- public void run() {
- List<Article> articles;
-
+ public void run() {
LOG.info("refresher "+ category.getId());
try {
retrieveArticles(category);
-
- synchronized (articlesByCategory) {
- articles = articlesByCategory.get(category);
- if (articles != null && articles.size() > 100) {
- articlesByCategory.put(category,
- articles.subList(0, 100));
-
- }
- LOG.info("refresher " + category.getId() + " number of articles: " + articles.size());
- }
} catch (IllegalArgumentException | FeedException | IOException e) {
LOG.log(Level.SEVERE, "refresher failure", e);
}
projects / pnews.git / blobdiff