moxy/dynamic/flickr/src/main/java/eclipselink/example/moxy/dynamic/flickr/Main.java - eclipselink/examples - Git at Google

 /*******************************************************************************
  * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
  * which accompanies this distribution.
  *
  * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
  * and the Eclipse Distribution License is available at
  * http://www.eclipse.org/org/documents/edl-v10.php.
  ******************************************************************************/
 package eclipselink.example.moxy.dynamic.flickr;

 import java.awt.Desktop;
 import java.io.File;
 import java.io.InputStream;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.Random;
 import java.util.StringTokenizer;

 import javax.xml.bind.JAXBContext;
 import javax.xml.bind.Marshaller;
 import javax.xml.bind.Unmarshaller;
 import javax.xml.transform.stream.StreamSource;

 import org.eclipse.persistence.dynamic.DynamicEntity;
 import org.eclipse.persistence.jaxb.JAXBContextProperties;
 import org.eclipse.persistence.jaxb.MarshallerProperties;
 import org.eclipse.persistence.jaxb.UnmarshallerProperties;
 import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext;
 import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContextFactory;
 import org.eclipse.persistence.oxm.MediaType;

 import com.likethecolor.alchemy.api.Client;
 import com.likethecolor.alchemy.api.call.RankedConceptsCall;
 import com.likethecolor.alchemy.api.call.type.CallTypeText;
 import com.likethecolor.alchemy.api.entity.ConceptAlchemyEntity;
 import com.likethecolor.alchemy.api.entity.Response;
 import com.likethecolor.alchemy.api.params.ConceptParams;

 public class Main {

     // The JAXBContext that we will use to read Reddit / Flickr data, and write HTML
     private DynamicJAXBContext context;

     // RedditPost:url -> RedditPost
     HashMap<Object, DynamicEntity> redditMap;
     // RedditPost:url -> FlickrResults
     HashMap<Object, DynamicEntity> flickrMap;

     File outputFile;

     // ========================================================================

     public static void main(String[] args) {
         new Main().run();
     }

     private void run() {
         try {
             init();

             readRedditPosts();
             findFlickrResults();
             writeHtml();
             launchSystemBrowser();
         } catch (Exception e) {
             e.printStackTrace();
         }
     }

     private void init() throws Exception {
         ClassLoader loader = Thread.currentThread().getContextClassLoader();

         InputStream redditBindings = loader.getResourceAsStream(REDDIT_BINDINGS);
         InputStream flickrBindings = loader.getResourceAsStream(FLICKR_BINDINGS);
         InputStream htmlBindings = loader.getResourceAsStream(HTML_BINDINGS);

         ArrayList<InputStream> dataBindings = new ArrayList<InputStream>(3);
         dataBindings.add(redditBindings);
         dataBindings.add(flickrBindings);
         dataBindings.add(htmlBindings);

         Map<String, Object> properties = new HashMap<String, Object>();
         properties.put(JAXBContextProperties.OXM_METADATA_SOURCE, dataBindings);
         context = DynamicJAXBContextFactory.createContextFromOXM(loader, properties);

         redditMap = new HashMap<Object, DynamicEntity>();
         flickrMap = new HashMap<Object, DynamicEntity>();

         outputFile = new File("output.html");
     }

     private void readRedditPosts() throws Exception {
         Unmarshaller u = context.createUnmarshaller();
         u.setProperty(UnmarshallerProperties.MEDIA_TYPE, MediaType.APPLICATION_JSON);
         u.setProperty(UnmarshallerProperties.JSON_INCLUDE_ROOT, false);

         Class<? extends DynamicEntity> redditResultsClass = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.RedditResults").getClass();

         System.out.println();
         System.out.print("Reading Today's Hot Topics from Reddit r/" + SUBREDDIT + "... ");
         DynamicEntity redditResults = u.unmarshal(new StreamSource(REDDIT_URL), redditResultsClass).getValue();
         System.out.println("Done.");

         ArrayList<DynamicEntity> posts = redditResults.get("posts");
         for (DynamicEntity post : posts) {
             redditMap.put(post.get("url"), post);
         }
     }

     private void findFlickrResults() throws Exception {
         for (Object postUrl : redditMap.keySet()) {
             DynamicEntity post = redditMap.get(postUrl);

             System.out.println();
             System.out.println("Headline: [" + post.get("title") + "]");

             String keywords = extractConcepts(post.get("title").toString());

             String flickrUrlString = FLICKR_URL + keywords;
             System.out.print("Searching Flickr: [" + flickrUrlString + "]... ");
             InputStream flickrStream = new URL(flickrUrlString).openConnection().getInputStream();
             System.out.println("Done.");

             Unmarshaller u = context.createUnmarshaller();
             DynamicEntity flickrResults = (DynamicEntity) u.unmarshal(flickrStream);

             flickrMap.put(postUrl, flickrResults);

             ArrayList<DynamicEntity> flickerItems = flickrResults.get("items");
             if (flickerItems != null) {
                 int size = flickerItems.size();
                 if (size >= IMAGE_LIMIT) {
                     size = IMAGE_LIMIT;
                 }
                 for (int i = 0; i < size; i++) {
                     System.out.println("\t" + flickerItems.get(i).get("imageUrl"));
                 }
             } else {
                 System.out.println("\tNo results found.");
             }
         }
     }

     private void writeHtml() throws Exception {
         DynamicEntity html = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlPage");
         html.set("title", "EclipseLink MOXy - Dynamic JAXB");
         html.set("css", "style.css");
         html.set("rel", "stylesheet");
         html.set("type", "text/css");
         html.set("media", "screen");

         DynamicEntity body = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlBody");
         body.set("title", "Reddit /" + SUBREDDIT + " - Today's Top Posts");

         ArrayList<DynamicEntity> divs = new ArrayList<DynamicEntity>();

         for (Object postUrl : redditMap.keySet()) {
             DynamicEntity post = redditMap.get(postUrl);
             DynamicEntity flickrResults = flickrMap.get(postUrl);

             // Article Link
             // ================================================================

             DynamicEntity redditDiv = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlDiv");
             redditDiv.set("id", "redditPost");

             ArrayList<DynamicEntity> divContent = new ArrayList<DynamicEntity>();

             DynamicEntity redditLink = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlTextLink");
             redditLink.set("url", post.get("url"));
             redditLink.set("title", post.get("title"));
             divContent.add(redditLink);

             redditDiv.set("span", divContent);

             // Flickr description and images
             // ================================================================

             DynamicEntity flickrDiv = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlDiv");
             flickrDiv.set("id", "flickrResults");

             divContent = new ArrayList<DynamicEntity>();

             DynamicEntity flickrDescription = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlText");
             flickrDescription.set("text", flickrResults.get("description"));
             divContent.add(flickrDescription);

             ArrayList<DynamicEntity> flickrItems = flickrResults.get("items");

             int counter = 0;
             if (flickrItems != null) {
                 Collections.shuffle(flickrItems, new Random(System.nanoTime()));
                 for (DynamicEntity flickrItem : flickrItems) {
                     DynamicEntity flickrImageLink = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlImageLink");
                     flickrImageLink.set("url", flickrItem.get("flickrPage"));
                     flickrImageLink.set("image", flickrItem.get("imageUrl"));
                     flickrImageLink.set("height", HTML_IMAGE_HEIGHT);
                     divContent.add(flickrImageLink);
                     counter++;
                     if (counter == IMAGE_LIMIT) {
                         break;
                     }
                 }
             } else {
                 DynamicEntity noneText = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlText");
                 noneText.set("text", "No results found.");
                 divContent.add(noneText);
             }
             flickrDiv.set("span", divContent);

             divs.add(redditDiv);
             divs.add(flickrDiv);
         }

         body.set("divs", divs);

         html.set("body", body);

         Marshaller m = context.createMarshaller();
         m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
         m.setProperty(Marshaller.JAXB_FRAGMENT, true);
         m.marshal(html, outputFile);
     }

     // ========================================================================

     /**
      * This method uses the AlchemyAPI web service to determine the "concepts"
      * contained in the headline.  It does not use EclipseLink and is used solely for
      * the purpose of this example application.
      *
      * @see <a href="http://www.alchemyapi.com">AlchemyAPI</a>
      */
     @SuppressWarnings("unchecked")
     private String extractConcepts(String postTitle) {
         try {
             Client client = new Client(ALCHEMY_KEY);

             ConceptParams params = new ConceptParams();
             params.setMaxRetrieve(ALCHEMY_CONCEPTS_TO_RETURN);

             CallTypeText callType = new CallTypeText(postTitle);
             RankedConceptsCall call = new RankedConceptsCall(callType, params);
             Response<ConceptAlchemyEntity> response = client.call(call);

             String concepts = "";

             Iterator<ConceptAlchemyEntity> it = response.iterator();
             if (!it.hasNext()) {
                 // If Alchemy didn't find any concepts, use string length algorithm
                 return extractKeywords(postTitle);
             } else {
                 while (it.hasNext()) {
                     ConceptAlchemyEntity alchemyEntity = it.next();
                     concepts +=  alchemyEntity.getConcept();
                     if (it.hasNext()) {
                         concepts += ",";
                     }
                 }
             }

             concepts = concepts.replace(" ", "+");

             return concepts;
         } catch (Exception e) {
             return extractKeywords(postTitle);
         }
     }

     private String extractKeywords(String postTitle) {
         StringTokenizer tokenizer = new StringTokenizer(postTitle, ",.!?()[]'\"- \t\n\r\f");

         ArrayList<String> words = new ArrayList<String>();

         while (tokenizer.hasMoreElements()) {
             words.add(tokenizer.nextToken());
         }

         // Sort words, longest one first
         Collections.sort(words, new StringLengthComparator());

         String keywords = null;
         if (words.size() > 1) {
             keywords = words.get(0) + "," + words.get(1);
         } else {
             keywords = words.get(0);
         }

         return keywords;
     }

     private void launchSystemBrowser() {
         try {
             Desktop.getDesktop().browse(outputFile.toURI());
         } catch (Exception e) {
             e.printStackTrace();
         }
     }

     private void writeJsonBindings() throws Exception {
         ClassLoader loader = Thread.currentThread().getContextClassLoader();
         InputStream bindingsXml = loader.getResourceAsStream("META-INF/bindings-flickr.xml");
         JAXBContext ctx = JAXBContext.newInstance("org.eclipse.persistence.jaxb.xmlmodel");
         Object bindings = ctx.createUnmarshaller().unmarshal(bindingsXml);

         Marshaller m = ctx.createMarshaller();
         m.setProperty(MarshallerProperties.MEDIA_TYPE, MediaType.APPLICATION_JSON);
         m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
         m.setProperty(MarshallerProperties.JSON_INCLUDE_ROOT, false);
         m.marshal(bindings, System.out);
     }

     // ========================================================================

     public class StringLengthComparator implements Comparator<String> {
         public int compare(String o1, String o2) {
             if (o1.length() > o2.length()) {
                 return -1;
             } else if (o1.length() < o2.length()) {
                 return 1;
             } else {
                 return 0;
             }
         }
     }

     // ========================================================================

     // See http://www.reddit.com/dev/api
     private final int REDDIT_LIMIT = 5;
     private final String SUBREDDIT = "technology";
     private final String REDDIT_URL = "http://www.reddit.com/r/" + SUBREDDIT + "/top/.json?sort=top&t=today&limit=" + REDDIT_LIMIT;

     // See http://www.flickr.com/services/feeds/
     private final int IMAGE_LIMIT = 6;
     private final String FLICKR_URL = "http://api.flickr.com/services/feeds/photos_public.gne?safe_search=1&tags=";

     private final String REDDIT_BINDINGS = "META-INF/bindings-reddit.xml";
     private final String FLICKR_BINDINGS = "META-INF/bindings-flickr.json";
     private final String HTML_BINDINGS = "META-INF/bindings-html.xml";

     private final int ALCHEMY_CONCEPTS_TO_RETURN = 2;
     private final String ALCHEMY_KEY = "/META-INF/a.key";

     private final Integer HTML_IMAGE_HEIGHT = Integer.valueOf(80);

 }
	/*******************************************************************************
	* Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
	* This program and the accompanying materials are made available under the
	* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
	* which accompanies this distribution.
	*
	* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
	* and the Eclipse Distribution License is available at
	* http://www.eclipse.org/org/documents/edl-v10.php.
	******************************************************************************/
	package eclipselink.example.moxy.dynamic.flickr;

	import java.awt.Desktop;
	import java.io.File;
	import java.io.InputStream;
	import java.net.URL;
	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.Comparator;
	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.Map;
	import java.util.Random;
	import java.util.StringTokenizer;

	import javax.xml.bind.JAXBContext;
	import javax.xml.bind.Marshaller;
	import javax.xml.bind.Unmarshaller;
	import javax.xml.transform.stream.StreamSource;

	import org.eclipse.persistence.dynamic.DynamicEntity;
	import org.eclipse.persistence.jaxb.JAXBContextProperties;
	import org.eclipse.persistence.jaxb.MarshallerProperties;
	import org.eclipse.persistence.jaxb.UnmarshallerProperties;
	import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext;
	import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContextFactory;
	import org.eclipse.persistence.oxm.MediaType;

	import com.likethecolor.alchemy.api.Client;
	import com.likethecolor.alchemy.api.call.RankedConceptsCall;
	import com.likethecolor.alchemy.api.call.type.CallTypeText;
	import com.likethecolor.alchemy.api.entity.ConceptAlchemyEntity;
	import com.likethecolor.alchemy.api.entity.Response;
	import com.likethecolor.alchemy.api.params.ConceptParams;

	public class Main {

	// The JAXBContext that we will use to read Reddit / Flickr data, and write HTML
	private DynamicJAXBContext context;

	// RedditPost:url -> RedditPost
	HashMap<Object, DynamicEntity> redditMap;
	// RedditPost:url -> FlickrResults
	HashMap<Object, DynamicEntity> flickrMap;

	File outputFile;

	// ========================================================================

	public static void main(String[] args) {
	new Main().run();
	}

	private void run() {
	try {
	init();

	readRedditPosts();
	findFlickrResults();
	writeHtml();
	launchSystemBrowser();
	} catch (Exception e) {
	e.printStackTrace();
	}
	}

	private void init() throws Exception {
	ClassLoader loader = Thread.currentThread().getContextClassLoader();

	InputStream redditBindings = loader.getResourceAsStream(REDDIT_BINDINGS);
	InputStream flickrBindings = loader.getResourceAsStream(FLICKR_BINDINGS);
	InputStream htmlBindings = loader.getResourceAsStream(HTML_BINDINGS);

	ArrayList<InputStream> dataBindings = new ArrayList<InputStream>(3);
	dataBindings.add(redditBindings);
	dataBindings.add(flickrBindings);
	dataBindings.add(htmlBindings);

	Map<String, Object> properties = new HashMap<String, Object>();
	properties.put(JAXBContextProperties.OXM_METADATA_SOURCE, dataBindings);
	context = DynamicJAXBContextFactory.createContextFromOXM(loader, properties);

	redditMap = new HashMap<Object, DynamicEntity>();
	flickrMap = new HashMap<Object, DynamicEntity>();

	outputFile = new File("output.html");
	}

	private void readRedditPosts() throws Exception {
	Unmarshaller u = context.createUnmarshaller();
	u.setProperty(UnmarshallerProperties.MEDIA_TYPE, MediaType.APPLICATION_JSON);
	u.setProperty(UnmarshallerProperties.JSON_INCLUDE_ROOT, false);

	Class<? extends DynamicEntity> redditResultsClass = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.RedditResults").getClass();

	System.out.println();
	System.out.print("Reading Today's Hot Topics from Reddit r/" + SUBREDDIT + "... ");
	DynamicEntity redditResults = u.unmarshal(new StreamSource(REDDIT_URL), redditResultsClass).getValue();
	System.out.println("Done.");

	ArrayList<DynamicEntity> posts = redditResults.get("posts");
	for (DynamicEntity post : posts) {
	redditMap.put(post.get("url"), post);
	}
	}

	private void findFlickrResults() throws Exception {
	for (Object postUrl : redditMap.keySet()) {
	DynamicEntity post = redditMap.get(postUrl);

	System.out.println();
	System.out.println("Headline: [" + post.get("title") + "]");

	String keywords = extractConcepts(post.get("title").toString());

	String flickrUrlString = FLICKR_URL + keywords;
	System.out.print("Searching Flickr: [" + flickrUrlString + "]... ");
	InputStream flickrStream = new URL(flickrUrlString).openConnection().getInputStream();
	System.out.println("Done.");

	Unmarshaller u = context.createUnmarshaller();
	DynamicEntity flickrResults = (DynamicEntity) u.unmarshal(flickrStream);

	flickrMap.put(postUrl, flickrResults);

	ArrayList<DynamicEntity> flickerItems = flickrResults.get("items");
	if (flickerItems != null) {
	int size = flickerItems.size();
	if (size >= IMAGE_LIMIT) {
	size = IMAGE_LIMIT;
	}
	for (int i = 0; i < size; i++) {
	System.out.println("\t" + flickerItems.get(i).get("imageUrl"));
	}
	} else {
	System.out.println("\tNo results found.");
	}
	}
	}

	private void writeHtml() throws Exception {
	DynamicEntity html = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlPage");
	html.set("title", "EclipseLink MOXy - Dynamic JAXB");
	html.set("css", "style.css");
	html.set("rel", "stylesheet");
	html.set("type", "text/css");
	html.set("media", "screen");

	DynamicEntity body = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlBody");
	body.set("title", "Reddit /" + SUBREDDIT + " - Today's Top Posts");

	ArrayList<DynamicEntity> divs = new ArrayList<DynamicEntity>();

	for (Object postUrl : redditMap.keySet()) {
	DynamicEntity post = redditMap.get(postUrl);
	DynamicEntity flickrResults = flickrMap.get(postUrl);

	// Article Link
	// ================================================================

	DynamicEntity redditDiv = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlDiv");
	redditDiv.set("id", "redditPost");

	ArrayList<DynamicEntity> divContent = new ArrayList<DynamicEntity>();

	DynamicEntity redditLink = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlTextLink");
	redditLink.set("url", post.get("url"));
	redditLink.set("title", post.get("title"));
	divContent.add(redditLink);

	redditDiv.set("span", divContent);

	// Flickr description and images
	// ================================================================

	DynamicEntity flickrDiv = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlDiv");
	flickrDiv.set("id", "flickrResults");

	divContent = new ArrayList<DynamicEntity>();

	DynamicEntity flickrDescription = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlText");
	flickrDescription.set("text", flickrResults.get("description"));
	divContent.add(flickrDescription);

	ArrayList<DynamicEntity> flickrItems = flickrResults.get("items");

	int counter = 0;
	if (flickrItems != null) {
	Collections.shuffle(flickrItems, new Random(System.nanoTime()));
	for (DynamicEntity flickrItem : flickrItems) {
	DynamicEntity flickrImageLink = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlImageLink");
	flickrImageLink.set("url", flickrItem.get("flickrPage"));
	flickrImageLink.set("image", flickrItem.get("imageUrl"));
	flickrImageLink.set("height", HTML_IMAGE_HEIGHT);
	divContent.add(flickrImageLink);
	counter++;
	if (counter == IMAGE_LIMIT) {
	break;
	}
	}
	} else {
	DynamicEntity noneText = context.newDynamicEntity("eclipselink.example.moxy.dynamic.flickr.HtmlText");
	noneText.set("text", "No results found.");
	divContent.add(noneText);
	}
	flickrDiv.set("span", divContent);

	divs.add(redditDiv);
	divs.add(flickrDiv);
	}

	body.set("divs", divs);

	html.set("body", body);

	Marshaller m = context.createMarshaller();
	m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
	m.setProperty(Marshaller.JAXB_FRAGMENT, true);
	m.marshal(html, outputFile);
	}

	// ========================================================================

	/**
	* This method uses the AlchemyAPI web service to determine the "concepts"
	* contained in the headline. It does not use EclipseLink and is used solely for
	* the purpose of this example application.
	*
	* @see <a href="http://www.alchemyapi.com">AlchemyAPI</a>
	*/
	@SuppressWarnings("unchecked")
	private String extractConcepts(String postTitle) {
	try {
	Client client = new Client(ALCHEMY_KEY);

	ConceptParams params = new ConceptParams();
	params.setMaxRetrieve(ALCHEMY_CONCEPTS_TO_RETURN);

	CallTypeText callType = new CallTypeText(postTitle);
	RankedConceptsCall call = new RankedConceptsCall(callType, params);
	Response<ConceptAlchemyEntity> response = client.call(call);

	String concepts = "";

	Iterator<ConceptAlchemyEntity> it = response.iterator();
	if (!it.hasNext()) {
	// If Alchemy didn't find any concepts, use string length algorithm
	return extractKeywords(postTitle);
	} else {
	while (it.hasNext()) {
	ConceptAlchemyEntity alchemyEntity = it.next();
	concepts += alchemyEntity.getConcept();
	if (it.hasNext()) {
	concepts += ",";
	}
	}
	}

	concepts = concepts.replace(" ", "+");

	return concepts;
	} catch (Exception e) {
	return extractKeywords(postTitle);
	}
	}

	private String extractKeywords(String postTitle) {
	StringTokenizer tokenizer = new StringTokenizer(postTitle, ",.!?()[]'\"- \t\n\r\f");

	ArrayList<String> words = new ArrayList<String>();

	while (tokenizer.hasMoreElements()) {
	words.add(tokenizer.nextToken());
	}

	// Sort words, longest one first
	Collections.sort(words, new StringLengthComparator());

	String keywords = null;
	if (words.size() > 1) {
	keywords = words.get(0) + "," + words.get(1);
	} else {
	keywords = words.get(0);
	}

	return keywords;
	}

	private void launchSystemBrowser() {
	try {
	Desktop.getDesktop().browse(outputFile.toURI());
	} catch (Exception e) {
	e.printStackTrace();
	}
	}

	private void writeJsonBindings() throws Exception {
	ClassLoader loader = Thread.currentThread().getContextClassLoader();
	InputStream bindingsXml = loader.getResourceAsStream("META-INF/bindings-flickr.xml");
	JAXBContext ctx = JAXBContext.newInstance("org.eclipse.persistence.jaxb.xmlmodel");
	Object bindings = ctx.createUnmarshaller().unmarshal(bindingsXml);

	Marshaller m = ctx.createMarshaller();
	m.setProperty(MarshallerProperties.MEDIA_TYPE, MediaType.APPLICATION_JSON);
	m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
	m.setProperty(MarshallerProperties.JSON_INCLUDE_ROOT, false);
	m.marshal(bindings, System.out);
	}

	// ========================================================================

	public class StringLengthComparator implements Comparator<String> {
	public int compare(String o1, String o2) {
	if (o1.length() > o2.length()) {
	return -1;
	} else if (o1.length() < o2.length()) {
	return 1;
	} else {
	return 0;
	}
	}
	}

	// ========================================================================

	// See http://www.reddit.com/dev/api
	private final int REDDIT_LIMIT = 5;
	private final String SUBREDDIT = "technology";
	private final String REDDIT_URL = "http://www.reddit.com/r/" + SUBREDDIT + "/top/.json?sort=top&t=today&limit=" + REDDIT_LIMIT;

	// See http://www.flickr.com/services/feeds/
	private final int IMAGE_LIMIT = 6;
	private final String FLICKR_URL = "http://api.flickr.com/services/feeds/photos_public.gne?safe_search=1&tags=";

	private final String REDDIT_BINDINGS = "META-INF/bindings-reddit.xml";
	private final String FLICKR_BINDINGS = "META-INF/bindings-flickr.json";
	private final String HTML_BINDINGS = "META-INF/bindings-html.xml";

	private final int ALCHEMY_CONCEPTS_TO_RETURN = 2;
	private final String ALCHEMY_KEY = "/META-INF/a.key";

	private final Integer HTML_IMAGE_HEIGHT = Integer.valueOf(80);

	}