Apps software development with Vert.X
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A gentle introduction to Vert.X. Some basic concepts about Vert.X API and a brief explanation of architecture.
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Apps software development with Vert.X
- 1. K t x ( 8 5 ! a ! > " [K S 9 # Vert.X APPS SOFTWARE DEVELOPMENT WITH Hit View -> Show Presenter Notes to view important information! U @MAKINGDEVS @NEODEVELOP GITHUB.COM/ MAKINGDEVS
- 2. www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com BEGIN END What is VertX? $ I Main Components (II Architecture ÑIII CURRENTAGENDA Main concerns bV Demo K IV
- 3. WHAT IS VERT.X? Vert.x is a lightweight, high performance application platform for the JVM that's designed for modern mobile, web, and enterprise applications. I
- 4. polylglot Java, JavaScript, CoffeeScript, Ruby, Python or Groovy, is your choice. Take advantage of the JVM www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com simple Write code normally, no complex configuration; the API is so simple… scalable Uses messaging to scale, we can use the cores of the same machine concurrency Simple actor-like concurrency, you don't have to deal with threads VERT.X FEATURES
- 6. www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com VERTICLES, MODULES & INSTANCES what is this?
- 7. www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com VERTICLES, MODULES & INSTANCES what is this?
- 8. j å ^ K reusable code VERT.X MODULES Registry: Vert.X apps uses many modules Community Check http:// modulereg.vertx.io Many verticles: Encapsulated and together in a package. Easy to use: modules are found in Binary or Maven repo www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com
- 10. www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com HOW IT WORKS? deep inside
- 11. main technologies WHAT’S INSIDE? •It’s build on top of Netty - https://github.com/netty/netty •Hazelcast for network discovery of nodes •Jackson for JSON expose •Java 7+ www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com
- 12. MAIN CONCERNS What kind of issues we found treating events? K " IV
- 13. platforms and languages ABOUT THE LANGUAGES Main concern: Javascript - https://www.destroyallsoftware.com/talks/wat Vert.X resolution Polyglot programming - http://vertx.io www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com
- 14. vertical scaling ABOUT SCALING Main concern: how do we scale?, when you deploy a JVM program is single thread Vert.X resolution •Runtime.availableProcessors() == 4 •vertx run Verticle -instances 4 •Verticles: •Are assigned to one event/loop •Always executed on assigned thread •Has own class loaders and cannot shared global state •Can write the code assuming single threading www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com
- 15. what is the process for coordinate work? ABOUT COMMUNICATION Main concern: how can we communicate between components? tcp, udp, sockets, signaling, etc… Vert.X resolution •The event bus •Addressing: Is a simple string, with dot-style namespacing(recommended) •Handler registration •Pub/Sub •P2P •Messages types: String, primitives, vertx…JsonObject, vertx…Buffer •Distributed Vert.X(Event Bus), even the browser(SockJS Bridge) www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com
- 16. what is the process for coordinate work? ABOUT COMMUNICATION Main concern: How do we share state? It’s dangerous if it’s mutable!!! Vert.X resolution •Vert.X Shared State •SharedData object •java.util.concurrent.ConcurrentMap •java.util.Set<E> •Elements must be inmutable •Only available within instances, not in a cluster •Allowed values: String, primitives, byte[] www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com
- 17. reactor pattern ABOUT THE EVENT LOOP Main concern: Single thread is single event loop, and all is in it; is dangerous block the event loop. What we can do with blocking work(e.g. JDBC)? Vert.X resolution •Worker Verticles •Not assigned to event loop thread and executes in the background thread pool •Not concurrently executed •Not able to use TCP servers •We only need the event bus, but less of them should be use them. www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com
- 18. VERT.X MODULES Use the actual code, there’s a lot of modules ready for use in: http://modulereg.vertx.io Z IV #
- 19. DEMO Everything could be happen in this demo…. ) 9V
- 20. QUESTIONS and ANSWERS C’mon, we want to help and improve this presentation… R % Go ahead. Ask away. Give us your best shot.
- 21. FACEBOOK facebook.com/makingdevs TWITTER twitter.com/makingdevs YOUTUBE+ youtube.com/makingdevs VIMEO youtube.com/makingdevs x t + v www.makingdevs.com Phone: +52(55) 185 30 73 | e-mail: juan@makingdevs.com FOLLOW US social links
- 22. YOU FOR ATTENDING ' THANK See you soon!