In this post you will learn how to use a micro framework called Spark to build a RESTful backend. The RESTful backend is consumed by a single page web application using AngularJS and MongoDB for data storage. I’ll also show you how to run Java 8 on OpenShift. You will develop a todo application which allows users to create and list todo items. The application will do the following: Spark is a Java based microframework for building web applications with minimum fuss. It is inspired by a framework written in Ruby called Sinatra. It has a minimalist core providing all the essential features required to build a web application quickly with little code. To build the sample application developed in this blog, you would need the following on your machine. The code for today’s demo application is available on github: todoapp-spark. Open a new command-line terminal and navigate to the location where you want to create the project. Execute the command shown below to generate the template application.

Import the project into your IDE and replace the pom.xml with the one shown below. In the pom.xml shown above, we changed the following: Delete App.java and AppTest.java files as we don’t need them. The application uses the Spark framework and a MongoDB database. So, update the dependencies section of pom.xml with the one shown below. Spark uses SLF4J for logging, so we added slf4j-simple binding in the dependencies. This is required to view the log and error messages. Also, we added the gson library as its used to convert objects to and from JSON. Create a new class called Bootstrap and add the following code to it. To see the application in action, run the main program using your IDE. The application will start the embedded Jetty server at http://0.0.0.0:4567. When you open this link in your web browser, you will see “Hello World!!”. Take advantage of Java 8 lambda expressions to make your code more concise and clean. Spark is a modern Java web framework that takes advantage of Java 8 features.

Our goal is an application that stores and manages ToDo items. Our simple ToDo class is shown below. Our TodoService class implement methods that use CRUD operations on the Todo object. It basically Creates, Reads, and Updates Todo documents stored in MongoDB. This code does the following: It is generally not a good idea to add all of the code to one class so we will move the application REST endpoints to another class. This new class is called TodoResource and exposes CRUD operations over Todo objects. The code shown above exposes the TodoService CRUD methods as REST API’s. JsonTransformer in the code shown above is an implementation of Spark’s ResponseTransformer interface. It allows you to convert response objects to other formats like JSON. Now we will write the entry point for our application. The Bootstrap class shown below configures all of the components. When you run this class as a Java application, it starts the Jetty server and start listening to requests.

Create a new directory with name public and place the javascript and css files in it. lifehacker blackout curtainsYou can checkout the required directory structure from the Github repository. blackout curtains belkDownload the latest copy of AngularJS and Bootstrap from their respective official websites, or you can copy the resources from this project github repository.ikea ritva curtains review Create a new file called index.html inside of the src/main/resources/public directory and place the following content into it.mystery beige hookless shower curtain

In the html shown above: The app.js houses all of the application specific JavaScript. frusciante curtains 320All of the application routes are defined inside it. octorose curtainsIn the code shown below, we have defined two routes and each has a corresponding Angular controller.eclipse microfiber thermaback blackout curtain - 42'' x 84'' The code shown above does the following: You can find the respective views for different routes in the application’s Github repository. You can either run the application using your IDE or package this application as an executable jar and then run it from the command-line. Add the following plugin to your project pom.xml to create an executable JAR.

This plugin provides the capability to package the artifact in an uber-jar, including its dependencies and to shade – i.e. rename – the packages of some of the dependencies. To create an executable jar, run the mvn clean install command. This creates a todoapp-1.0-SNAPSHOT.jar in the target directory. This would print following lines in the terminal. This blog would not be complete if I didn’t show you how to run this application on OpenShift. Today OpenShift does not support JDK 8 but that doesn’t mean you can’t run Java 8 applications. You can use the DIY cartridge and install your own JDK version. The next command creates the todo application you created in the above mentioned steps. It installs JDK 8 on the DIY gear and configures other settings.Please replace {domain-name} with your OpenShift account domain name. Stay informed and learn more about OpenShift by receiving email updates. Put on your finest evening wear, get out your opera glasses, settle into your private box and get ready to fall in love: the world of film loves a decadent night at the opera.

And why wouldn’t it, with so many stirring arias and powerful stories of love and heartbreak? We've picked out a few of our favourites, playing up to a few of opera's most fantastical stereotypes: Of course, we had to start with Amadeus. After all, Miloš Forman's adaptation of Peter Shaffer's play of the same name contains an abundance of opera. Set in late-18th century Vienna, the film is a (fictionalized) account of the life of Wolfgang Amadeus Mozart told from the perspective of resentful fellow composer Antonio Salieri (F. Murray Abraham). Salieri comes to despise Mozart when the young man’s talents eclipse his. The movie's lavish opera scenes include a performance of The Marriage of Figaro, a tale behind the inspiration for the ‘Queen of the Night’ aria, and a staging of Don Giovanni complete with winged helmets, but our pick is Forman's depiction of the opening night of Mozart’s 1782 opera The Abduction from Seraglio, complete with the composer (Tom Hulce) flamboyantly conducting in a ludicrous pink wig — de rigueur in the 1780s

, but not so commonplace two centuries on. Black tie, white gloves, gold watches and the social scandals of the upper class, the opening opera scene of Martin Scorsese’s sumptuous The Age of Innocence has it all. The movie is set in 1870s New York when families of high society would go to the opera weekly to be seen in their private boxes and every opera season seemingly began with Faust. Gounod's opera features themes of temptation, seduction and regret and these are reflected in The Age of Innocence, the story of a love triangle between Newland Archer (Daniel Day-Lewis), May Welland (Winona Ryder) and Countess Olenska (Michelle Pfeiffer). Scorsese’s camera lingers over the accoutrements of the rich setting up a milieu where wealth is flaunted and social hierarchies are reflected in seating arrangements. Here, opera glasses are as much for observing each other and the drama unfolding within the boxes as they are for watching the action on stage. Unlike New York in the 1870s, come to the opera today and you will find jeans are more common than formal attire and a seat in the box is open to all.

In this exquisite scene from Roberto Benigni’s Oscar-winning World War II film Life is Beautiful, Jacques Offenbach’s beautiful barcarolle ‘Belle nuit, ô nuit d'amour’ from The Tales of Hoffmann is being performed on stage complete with a Venetian gondola and lavish costumes. While the audience in wartime greys and browns stare somewhat laconically at the stage, there’s one man in the audience looking the other way, far more captivated. Guido Orefice (Benigni) can’t take his eyes off a woman in one of the boxes and quietly invokes her to ‘look at me, princess’. Next time you’re at the opera, take a good look around the auditorium. You never know, you too may find your future husband or wife. But be warned, talking to yourself as Guido does during a performance will not win you any friends. When his talent-devoid wife Susan Alexander (Dorothy Comingore) can’t get a gig at the Metropolitan Opera, megalomaniac Charles Foster Kane (Orson Welles) builds an opera house for her.

Widely considered one of the greatest films of all time, Citizen Kane sees Welles shows off his technical mastery to reveal the the hustle and bustle backstage before curtain up in two variations of his opera scene. The first iteration includes the famous moment where the camera seems to ascend into the rafters, an effect being created by panning over a miniature then using wipes to blend into the stage curtains and wooden beam, giving the feeling of rising higher than would be possible in a real theatre. The second version begins from Susan’s point of view, the shot reversed as she is left alone, dwarfed on stage – a singer well out of her depth. This scene reveals many aspects of opera stagecraft included a striking low-angled shot of the footlights and cutaways into the prompter's box (commonplace in Welles' time, but less common nowadays). Projecting his ambitions onto his hapless wife, Welles refuses to admit defeat, loudly continuing clapping after the rest of the audience has stopped.

The Royal Opera House, but not quite as you know it as Luc Besson’s sends Covent Garden into orbit on a spaceship in his iconic sci-fi film The Fifth Element. Black tie is the preferred attire, as demonstrated by our hero Korben Dallas (Bruce Willis), although there are some more cosmic outfits in the audience including interesting headgear that would surely annoy those sitting behind. Blue Diva Plavalaguna (voiced by Albanian soprano Inva Mula) performs ‘Il dolce suono’ from Lucia di Lammermoor as Dallas looks on spellbound, and humanoid Leeloo (Milla Jovovich) lurks in the wings. The calm is shattered however, when the spaceship/theatre is invaded by a troupe of alien baddies. No list of opera film scenes would be complete without the much-loved opera outing from Pretty Woman. Rich, suave Edward Lewis (Richard Gere) buys Vivian (Julia Roberts), a ‘hooker with a heart of gold’, a red evening gown and a necklace before whisking her off to see La traviata — a story which parallels her own.

If like Edward and Vivian you decide to arrive late to a performance, you won’t be let in until a suitable break in the performance. And perhaps leave the long white gloves at home. The moon is a symbol of love in this romantic comedy about Sicilian-Americans living in Brooklyn. Moonstruck tells the story of Loretta (Cher) who is engaged to be married to Johnny (Danny Aiello). She, however, has inadvertently slept with his brother, Ronny (Nicholas Cage). Loretta and Ronny strike a deal: Ronny agrees to never see her again if she comes to the opera with him. Following the usual silver screen trope, opera newcomer Loretta heads straight to the shop to buy a glamourous new gown for the occasion. Ronny is an opera lover so he has, of course, donned a tuxedo for his big night out at the Lincoln Center. Loretta is so moved by the romantic La bohème that she weeps and Ronny tenderly kisses her hand — proof if ever it were needed that opera can bring people together like nothing else.

James Bond is no stranger to black tie, and it'd be a surprise if he turned up to the opera in anything else. The spectacular setting of the floating stage at Bregenzer Festspiele in Austria attracts opera tourists from all over the world, and on 007's visit during Quantum of Solace, he's joined by a band of criminal masterminds plotting to take over Bolivia through a diabolical plot which would see them deprive the country of natural water. Bond and the band of baddies are at Bregenz to see a striking production of Tosca, the set for which includes a giant eye watching over the audience, as Bond dashes about backstage doing his own surveillance. Diegetic sound is used to great effect as the famous Te Deum plays on while Bond pursues his enemies backstage. The action climaxes with a kitchen shootout, paralleling the violence unfolding on stage. A highlight of this scene is a snooty zinger from an audience member as Quantum members hastily leave in the middle in the performance: ‘well Tosca is not for everyone’.