BAEL-644: RSS with Rome (#2385)

* BAEL-886: Updated README

* BAEL-917 Testing with Google Truth

Updated README

* BAEL-936: adding akka-streams module to parent

* BAEL-936: Update README

* BAEL-918: Update README

* BAEL-980: Update README

* BAEL-967: Update README

* BAEL-509: Using @GetMapping instead of @RequestMapping with method=GET

* BAEL-1005: Update README

* BAEL-509: Security and WebSockets (README)

* BAEL-861: Intro to Awaitility (README)

* BAEL-1010: Guide to the HyperLogLog Algorithm (README)

* BAEL-907: Guide to Apache Commons CircularFifoQueue (README)

* BAEL-644: Quick Guide to RSS with Rome

libraries/pom.xml

@@ -181,6 +181,11 @@
 			<artifactId>jetty-servlet</artifactId>
 			<version>${jetty.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>rome</groupId>
+			<artifactId>rome</artifactId>
+			<version>${rome.version}</version>
+		</dependency>
 	    <dependency>
 	      <groupId>io.specto</groupId>
 	      <artifactId>hoverfly-java</artifactId>
@@ -497,5 +502,6 @@
 		<hll.version>1.6.0</hll.version>
 		<bytebuddy.version>1.7.1</bytebuddy.version>
 		<pcollections.version>2.1.2</pcollections.version>
+		<rome.version>1.0</rome.version>
 	</properties>
 </project>

libraries/src/main/java/com/baeldung/rome/RSSRomeExample.java

@@ -0,0 +1,76 @@
+package com.baeldung.rome;
+
+import com.sun.syndication.feed.synd.*;
+import com.sun.syndication.io.FeedException;
+import com.sun.syndication.io.SyndFeedInput;
+import com.sun.syndication.io.SyndFeedOutput;
+import com.sun.syndication.io.XmlReader;
+
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.Writer;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class RSSRomeExample {
+
+    public static void main(String[] args) throws IOException, FeedException {
+        SyndFeed feed = createFeed();
+        addEntryToFeed(feed);
+        publishFeed(feed);
+        readFeed();
+    }
+
+    private static SyndFeed createFeed() {
+        SyndFeed feed = new SyndFeedImpl();
+        feed.setFeedType("rss_1.0");
+        feed.setTitle("Test title");
+        feed.setLink("http://www.somelink.com");
+        feed.setDescription("Basic description");
+
+        return feed;
+    }
+
+    private static void addEntryToFeed(SyndFeed feed) {
+        SyndEntry entry = new SyndEntryImpl();
+        entry.setTitle("Entry title");
+        entry.setLink("http://www.somelink.com/entry1");
+
+        addDescriptionToEntry(entry);
+        addCategoryToEntry(entry);
+
+        feed.setEntries(Arrays.asList(entry));
+    }
+
+    private static void addDescriptionToEntry(SyndEntry entry) {
+        SyndContent description = new SyndContentImpl();
+        description.setType("text/html");
+        description.setValue("First entry");
+
+        entry.setDescription(description);
+    }
+
+    private static void addCategoryToEntry(SyndEntry entry) {
+        List<SyndCategory> categories = new ArrayList<>();
+        SyndCategory category = new SyndCategoryImpl();
+        category.setName("Sophisticated category");
+        categories.add(category);
+
+        entry.setCategories(categories);
+    }
+
+    private static void publishFeed(SyndFeed feed) throws IOException, FeedException {
+        Writer writer = new FileWriter("xyz.txt");
+        SyndFeedOutput syndFeedOutput = new SyndFeedOutput();
+        syndFeedOutput.output(feed, writer);
+        writer.close();
+    }
+
+    private static SyndFeed readFeed() throws IOException, FeedException {
+        URL feedSource = new URL("http://rssblog.whatisrss.com/feed/");
+        SyndFeedInput input = new SyndFeedInput();
+        return input.build(new XmlReader(feedSource));
+    }
+}