Sonettic Cinema

Java MRSS playlist generator

Class Build is intended for the generation of Sonettic playlist MRSS feed, that is further used for the playlist formation. Technically the format is a broadening of Yahoo! MRSS (more details can be found on the format description page).

More about Custom MRSS for Sonettic Cinema HD Player.

There are two ways of creating an input data — with generating of an object hierarchy or with listing of separate elemets, which are the nodes of a source document. Let's examine both of them.

For the first variant it is necessary to create an object of MRSSChannel class, where all other data will be located. We are receiving String with ready information applying a method of make MRSSFromChannel of the Build class after a final formation.

You may download all of the source files and examples from our site:

Also you may read Sonettic MRSS Builder JavaDoc

Requirements: Sonettic MRSS feed generator required dom4j library. It can be find on the www.dom4j.org.

For example:

<%@ page contentType="text/xml;charset=utf-8" import="java.util.*, com.sonettic.mrss.*, com.sonettic.mrss.elements.*" %><%

String test = new String();

// Creating a new channel with the unique identifier.
MRSSChannel channel = new MRSSChannel("CHANNEL01"); 
channel.addNode(new MRSSNode("title", "Sonettic-Cinema Java MRSS Playlist generated"));

// Creating a new ads with fields url and value.
String adsModuleUrl = "http://sonettic-cinema.com/labs/adsmodules/videoadsplayer.swf";
String adsModuleXml = "http://sonettic-cinema.com/labs/modules_style/mystyle.xml";
MRSSAds channelAds = new MRSSAds(adsModuleUrl, adsModuleXml);
// Adding ads to channel.
channel.setAds(channelAds);

ArrayList<MRSSItem> itemList = new ArrayList<MRSSItem>(0);

/**
 * Here goes a list of video items 
 */
// Creating a new item with the unique identifier and url.
MRSSItem firstItem = new MRSSItem("001walle", "http://sonettic-cinema.com/"); 
// Adding poster to item.			
firstItem.setPoster(new MRSSPoster("http://sonettic-cinema.com/labs/posters/walle.jpg", 560, 234));
// Adding a node with the name link.
firstItem.addNode(new MRSSNode("link", "http://localhost:8080/cinema/player.jsp"));
firstItem.addNode(new MRSSNode("title", "WALL•E"));
firstItem.addNode(new MRSSNode("description", "The year is 2700. WALL•E, a robot, spends every day doing what he was made for. But soon, he will discover what he was meant for."));

// Creating media content.
MRSSMediaContent firstMediaContent = new MRSSMediaContent("[filename]?start=[seek],http://www.proza.tv/inside.flv");

// Setting up its attributes	
firstMediaContent.setDuration(150);
firstMediaContent.setLang("en");
firstMediaContent.setStart(80);
// Adding a node with the name link.
firstMediaContent.addNode(new MRSSMediaContentNode("keywords", "fun,robo,cartoon,video"));

ArrayList<HashMap> chapters = new ArrayList<HashMap>();

// first chapter
HashMap chapter1 = new HashMap();
chapter1.put("position", 30);
chapter1.put("title", "Walle in Pixar Logo");
chapter1.put("description", "Wall-E discovers a new purpose in life...");
chapter1.put("url", "/labs/chapterthumbs/walle_30.jpg");
chapter1.put("width", "75");
chapter1.put("height", "50");
chapters.add(chapter1);

// second chapter
HashMap chapter2 = new HashMap();
chapter2.put("position", 87);
chapter2.put("title", "Discoverer");
chapter2.put("url", "/labs/chapterthumbs/walle_60.jpg");
chapter2.put("width", "75");
chapter2.put("height", "50");
chapters.add(chapter2);

// threed chapter
HashMap chapter3 = new HashMap();
chapter3.put("position", 130);
chapter3.put("title", "Fly away");
chapter3.put("url", "/labs/chapterthumbs/walle_130.jpg");
chapter3.put("width", "75");
chapter3.put("height", "50");
chapters.add(chapter3);

for(HashMap item : chapters){
	// Creating nodes, filling in their attributes.
	MRSSMediaChapter chapter = new MRSSMediaChapter((Integer)item.get("position"), 0);

MRSSNode title = new MRSSNode("title", (String)item.get("title"));
	title.setAttribute("type", "plain");
	
	if(item.get("descripton") != null){
		MRSSNode description = new MRSSNode("description", (String)item.get("descripton"));
		description.setAttribute("type", "plain");
		chapter.addNode(description);
	}

MRSSNode thumb = new MRSSNode("thumbnail");
	String thumbnailUrl = "http://sonettic-cinema.com" + (String)item.get("url");
	thumb.setAttribute("url", thumbnailUrl);
	thumb.setAttribute("width", "75");
	thumb.setAttribute("height", "50");

// Adding nodes to chapter.
	chapter.addNode(title);
	chapter.addNode(thumb);
				
	// Adding chapter to content.
	firstMediaContent.addChapter(chapter);	
}

// Adding content to item.
firstItem.addContent(firstMediaContent);
// Adding item to channel			
channel.addItem(firstItem);

// Initialising a new Builder.
Builder builder = new Builder();
			
try {
	// Returning the got xml.
	test = builder.makeMRSSFromChannel(channel);
			
}catch(Exception e){
	// Handling exception in case of incorrect formation of our structure
	//	(channel doesn' have any item).
}

%><%= test %>

As a result we are getting a XML document with one media item wich have :

<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:media="http://search.yahoo.com/mrss" version="2.0">
	<channel>
		<id>CHANNEL01</id>
		<title>Sonettic-Cinema Java MRSS Playlist generated</title>
		<ads
			url="http://sonettic-cinema.com/labs/adsmodules/videoadsplayer.swf"
			value="http://sonettic-cinema.com/labs/modules_style/mystyle.xml" />
		<item>
			<id>001walle</id>
			<link>http://localhost:8080/cinema/player.jsp</link>
			<title>WALL•E</title>
			<description>
					The year is 2700. WALL•E, a robot, spends every day doing what he was made for. 
					But soon, he will discover what he was meant for.
			</description>
			<poster
				url="http://sonettic-cinema.com/labs/posters/walle.jpg" width="560"
				height="234" /><media:content url="http://sonettic-cinema.com/" />
			<media:content
				url="[filename]?start=[seek],http://www.proza.tv/inside.flv"
				duration="150" lang="en" start="80">
				<media:keywords>fun,robo,cartoon,video</media:keywords>
				
				<media:chapter timemark="30" duration="0">
					<title type="plain">Walle in Pixar Logo</title>
					<thumbnail width="75" height="50"
						url="http://sonettic-cinema.com/labs/chapterthumbs/walle_30.jpg" />
				</media:chapter>
				
				<media:chapter timemark="87" duration="0">
					<title type="plain">Discoverer</title>
					<thumbnail width="75" height="50"
						url="http://sonettic-cinema.com/labs/chapterthumbs/walle_60.jpg" />
				</media:chapter>
				
				<media:chapter timemark="130" duration="0">
					<title type="plain">Fly away</title>
					<thumbnail width="75" height="50"
						url="http://sonettic-cinema.com/labs/chapterthumbs/walle_130.jpg" />
				</media:chapter>
			</media:content>
		</item>
	</channel>
</rss>

In second way data is formed from the List, where required document nodеs are one by one.

List<Item> items = new List<Item>();
List<MRSSElement> elementsList = new ArrayList<MRSSElement>(); 
MRSSElement element = new MRSSElement("channel");
elementsList.add(element);
	// Creating a channel
elementsList.add(new MRSSElement("id", "someUniqueId"));
for (Item item : items) {
	// Passing all extant items
	elementsList.add(new MRSSElement("item"));
	elementsList.add(new MRSSElement("id", item.id));
	if (item.keywords!=null){
		elementsList.add(new MRSSElement("keywords", item.keywords));
	}
	if (item.description!=null){
		MRSSElement description = new MRSSElement("description", item.description.value);
		description.setAttribute("type", item.description.type);
		elementsList.add(description);
	}
	if (item.ads!=null){
		MRSSElement ads = new MRSSElement("ads");
		ads.setAttribute("url", item.ads.url);
		ads.setAttribute("value", item.ads.value);
		ads.setAttribute("settings", item.ads.settings);
		elementsList.add(ads);
	}
	// Adding property, which exist for our separate item 
	for (MediaContent content : item.mediaContents) {
		// Passing all media:content, which is in this item
		MRSSElement mediaContent = new MRSSElement("media:content");
		mediaContent.setAttribute("url", content.url);			
		elementsList.add(mediaContent);
		
		if (content.title!=null){
			elementsList.add(new MRSSElement("title", content.title));
		}
		for (MediaChapter chapter : content.chapters) {
			// Passing all media:chapter, which is in this media:content
			MRSSElement mediaChapter = new MRSSElement("media:chapter");
			mediaChapter.setAttribute("timemark", chapter.timemark);	
			mediaChapter.setAttribute("duration", chapter.timemark);
			elementsList.add(mediaChapter);
			if (chapter.thumbnail!=null){
				MRSSElement thumbnail = new MRSSElement("thumbnail");
				thumbnail.setAttribute("url", chapter.thumbnail.url);
				thumbnail.setAttribute("width", chapter.thumbnail.width);
				thumbnail.setAttribute("height", chapter.thumbnail.height);
				elementsList.add(thumbnail);
			}
			if (chapter.title!=null){
				MRSSElement chapterTitle = new MRSSElement("title", chapter.title.value);
				chapterTitle.setAttribute("type", chapter.title.type);
				elementsList.add(chapterTitle);
			}
			// Adding properties, which exist for our separate chapter
		}
	}
}

An empty element named as "/" is necessary to be created in the List <MRSSElement> to move to the higher level. You should not use the procedure noted heretofore if putting data within hierarchal order

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Java MRSS playlist generator