Eclipse Vert.x at BruJUG 2019

Transcript

1. Julien Ponge
   @jponge
   Principal Software Engineer, PhD
   

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2. Reactive?
   (because resources are scarce)
   

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4. Application
   

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5. Reactive
   systems
   Reactive
   streams
   Reactive
   programming
   Reactive
   “Responding to stimuli”
   Manifesto, Actor, Messages
   Resilience, Elasticity, Scalability,
   Asynchronous, non-blocking
   Data flow
   Back-pressure
   Non-blocking
   Data flow
   Events, Observable
   Spreadsheets
   Akka, Vert.x Akka Streams, RxJava,
   Reactor, Vert.x
   Reactor, Reactive Spring,
   RxJava, Vert.x
   

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6. while (isRunning) {
   String line = bufferedReader.readLine();
   switch (line.substring(0, 4)) {
   case "ECHO":
   bufferedWriter.write(line);
   break
   // ...
   // other cases ( ...)
   // ...
   default:
   bufferedWriter.write("UNKW Unknown command");
   }
   }
   

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7. x 1000 =
   

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8. 
   Virtual machines,
   Containers, etc
   

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10. (demo)
    

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11. Vert.x?
    (async all the things!)
    

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12. mtpvertx
    40%
    (all Manning)
    

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13. Eclipse Vert.x
    Open source project started in 2012
    Eclipse / Apache licensing
    A toolkit for building reactive applications for the JVM
    ~10k ⋆ on
    Built on top of
    https://vertx.io
    @vertx_project
    

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14. Http server verticle Database client verticle
    
    Event Bus
    “Details for user 1234?”
    “{data}”
    4 instances
    1 instance
    

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15. Events
    Thread
    Event Loop
    

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16. Callbacks RxJava 1 + 2
    Quasar (vertx-sync)
    Kotlin coroutines
    (core)
    (codegen)
    CompletionStage
    

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18. (demo time)
    APIs with Mongo
    Edge service with RxJava2
    Event streaming with Kafka + web
    “Connected tires / IoT”
    

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19. Outro
    

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20. Unified end-to-end reactive model + ecosystem
    (not just APIs…)
    For all kinds of distributed applications
    (even the small-scale ones)
    Flexible toolkit, not a framework
    (your needs, your call)
    

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21. 
    Asynchronous programming
    

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22. 
    Single threaded event processors
    vs multi-threaded components
    

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23. Do you really need these
    anaemic POJOs / DTOs?
    
    

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24. 
    Not everything has
    to be annotations!
    

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25. Powered by and more!
    

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26. mtpvertx
    40%
    (all Manning)
    

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