groovy

Sin descripción.

A few years ago I created a small system to automate some tasks in our barn where we keep pet potbelly pig and our chickens. Simple things, like scheduling when the lights turn on and off, temperature monitoring and a webcam. It was nice to automate those things, but the best part for me was being able to tinker with the sensors and devices and learn new libraries, frameworks and languages. I’ve recently re-imagined the system as a way to learn more new technologies. I’ve created a prototype version to demonstrate how I might build it again if I were to start over from scratch and in this session we’ll look at that model and learn about the hardware and software used in it. At it’s core, the system uses an Arduino, Raspberry Pi and various pumps, solenoids, motors and sensors to simulate the automation of certain tasks like filling a water bowl, opening and closing doors, monitoring environment and turning on and off lights on demand or via schedule. The hardware runs a Groovy based program which interfaces with Kafka for messaging to both store sensor data in a MongoDB instance as well as receive commands for remotely performing certain tasks on demand. The persisted data is formatted and displayed on a web application running in a Docker container that is deployed to a cloud-based Kubernetes cluster. We’ll look at both the hardware and software that power this system and how I’ve used the project as a playground for learning new technologies, languages and frameworks. ------------- Todos los vídeos de Greach 2019 en: https://lk.autentia.com/Greach19-YT ¡Conoce Autentia! Twitter: https://goo.gl/MU5pUQ Instagram: https://lk.autentia.com/instagram LinkedIn: https://goo.gl/2On7Fj/ Facebook: https://goo.gl/o8HrWX

Greach is a yearly technical conference around Android, JVM Frameworks and alternative JVM languages. It brings together JVM developers with framework creators and international speakers. Developers learn about JVM languages such as Groovy, Kotlin, platforms such as Android, JVM frameworks such as Grails, Micronaut, Ratpack, Spock... or cloud environments such as Google Cloud, Amazon Web Services or PWS. The most talented developers around Europe come to Greach to learn how to develop better, faster and smarter. ------------- Spock was a game changer for all the people struggling with unit testing in JUnit 4. Compact syntax, parameterised tests or flexibility to mention just a few advantages. Over 10 years after JUnit 4.0, the brand new, written from scratch, Java 8 optimised JUnit 5 has been released. Is it still worth to write tests in Spock? During my presentation I will compare selected areas of Spock and JUnit 5 to give you an overview how the situation looks like in 2019. I will try to answer the question if its time for Spock to fade into oblivion or maybe quite the opposite it is still light years ahead of JUnit 5. ------------- Todos los vídeos de Greach 2019 en: https://lk.autentia.com/Greach19-YT ¡Conoce Autentia! Twitter: https://goo.gl/MU5pUQ Instagram: https://lk.autentia.com/instagram LinkedIn: https://goo.gl/2On7Fj/ Facebook: https://goo.gl/o8HrWX

SDKMAN is the Software Development Kit Manager. It is also the Groovy enVironment Manager of old. Since it was created in 2012, it has undergone many changes to the point that it is a far more diverse tool than at the time of its inception. However, it's primary purpose remains the same: to make the life of developers less painful! The Groovy enVironment Manager might have outgrown it's name, but it is still as relevant as ever. Today SDKMAN is not only responsible for serving binaries to many JVM communities, it also serves JDK binaries of many different flavours. This talk will look at where we came from, the current state of the project as well as the what the future holds for SDKMAN. We will take a dive into the current architecture, the technologies which make up our backend and how we provision our instances with Terraform and Ansible. We will also look into the exciting Go re-write that is currently underway, which will take us away from the current bash CLI. If you really don't know what SDKMAN is, or if you would like to have a peak under the hood at what it does or how it does it, this talk is a must for you! ------------- Todos los vídeos de Greach 2019 en: https://lk.autentia.com/Greach19-YT ¡Conoce Autentia! Twitter: https://goo.gl/MU5pUQ Instagram: https://lk.autentia.com/instagram LinkedIn: https://goo.gl/2On7Fj/ Facebook: https://goo.gl/o8HrWX

¿Y si lo escuchas mientras vas al trabajo o te pones en forma?: https://www.ivoox.com/34900166 ------------- Greach is a yearly technical conference around Android, JVM Frameworks and alternative JVM languages. It brings together JVM developers with framework creators and international speakers. Developers learn about JVM languages such as Groovy, Kotlin, platforms such as Android, JVM frameworks such as Grails, Micronaut, Ratpack, Spock... or cloud environments such as Google Cloud, Amazon Web Services or PWS. The most talented developers around Europe come to Greach to learn how to develop better, faster and smarter. ------------- ------------- Todos los vídeos de Greach 2019 en: https://lk.autentia.com/Greach19-YT ¡Conoce Autentia! Twitter: https://goo.gl/MU5pUQ Instagram: https://lk.autentia.com/instagram LinkedIn: https://goo.gl/2On7Fj/ Facebook: https://goo.gl/o8HrWX

¿Y si lo escuchas mientras vas al trabajo o te pones en forma?: https://www.ivoox.com/34982342 Greach is a yearly technical conference around Android, JVM Frameworks and alternative JVM languages. It brings together JVM developers with framework creators and international speakers. Developers learn about JVM languages such as Groovy, Kotlin, platforms such as Android, JVM frameworks such as Grails, Micronaut, Ratpack, Spock... or cloud environments such as Google Cloud, Amazon Web Services or PWS. The most talented developers around Europe come to Greach to learn how to develop better, faster and smarter. ------------- ------------- Todos los vídeos de Greach 2019 en: https://lk.autentia.com/Greach19-YT ¡Conoce Autentia! Twitter: https://goo.gl/MU5pUQ Instagram: https://lk.autentia.com/instagram LinkedIn: https://goo.gl/2On7Fj/ Facebook: https://goo.gl/o8HrWX

Greach is a yearly technical conference around Android, JVM Frameworks and alternative JVM languages. It brings together JVM developers with framework creators and international speakers. Developers learn about JVM languages such as Groovy, Kotlin, platforms such as Android, JVM frameworks such as Grails, Micronaut, Ratpack, Spock... or cloud environments such as Google Cloud, Amazon Web Services or PWS. The most talented developers around Europe come to Greach to learn how to develop better, faster and smarter. ------------- Todos los vídeos de Greach 2019 en: https://lk.autentia.com/Greach19-YT ¡Conoce Autentia! Twitter: https://goo.gl/MU5pUQ Instagram: https://lk.autentia.com/instagram LinkedIn: https://goo.gl/2On7Fj/ Facebook: https://goo.gl/o8HrWX

¿Y si lo escuchas mientras vas al trabajo o te pones en forma?: https://www.ivoox.com/34982552 ------------- If you have a collection of photos that your users can download in a zip file, you have many different options for the user experience. Most of these involve the user to wait for the zip to be produced in the background. In the presentation, I will take you through the steps of creating the zip fly on the fly, using reactive programming with backpressure in micronaut. Doing it this way, we can limit the memory usage, even with many clients downloading on a slow connection. An introduction to reactive programming and backpressure is included! ------------------- Greach is a yearly technical conference around Android, JVM Frameworks and alternative JVM languages. It brings together JVM developers with framework creators and international speakers. Developers learn about JVM languages such as Groovy, Kotlin, platforms such as Android, JVM frameworks such as Grails, Micronaut, Ratpack, Spock... or cloud environments such as Google Cloud, Amazon Web Services or PWS. The most talented developers around Europe come to Greach to learn how to develop better, faster and smarter. ------------- Todos los vídeos de Greach 2019 en: https://lk.autentia.com/Greach19-YT ¡Conoce Autentia! Twitter: https://goo.gl/MU5pUQ Instagram: https://lk.autentia.com/instagram LinkedIn: https://goo.gl/2On7Fj/ Facebook: https://goo.gl/o8HrWX

Greach is a yearly technical conference around Android, JVM Frameworks and alternative JVM languages. It brings together JVM developers with framework creators and international speakers. Developers learn about JVM languages such as Groovy, Kotlin, platforms such as Android, JVM frameworks such as Grails, Micronaut, Ratpack, Spock... or cloud environments such as Google Cloud, Amazon Web Services or PWS. The most talented developers around Europe come to Greach to learn how to develop better, faster and smarter. ------------- Todos los vídeos de Greach 2019 en: https://lk.autentia.com/Greach19-YT ¡Conoce Autentia! Twitter: https://goo.gl/MU5pUQ Instagram: https://lk.autentia.com/instagram LinkedIn: https://goo.gl/2On7Fj/ Facebook: https://goo.gl/o8HrWX

'Have you heard about GRAALVM? Maybe yes, but, how can we use it? In this talk we are going to see how to create images to execute our JVM applications faster and what are the GRAALVM limitations when using Groovy or Kotlin as program languagues' Greach is a yearly technical conference around Android, JVM Frameworks and alternative JVM languages. It brings together JVM developers with framework creators and international speakers. Developers learn about JVM languages such as Groovy, Kotlin, platforms such as Android, JVM frameworks such as Grails, Micronaut, Ratpack, Spock... or cloud environments such as Google Cloud, Amazon Web Services or PWS. The most talented developers around Europe come to Greach to learn how to develop better, faster and smarter. ------------- Todos los vídeos de Greach 2019 en: https://lk.autentia.com/Greach19-YT ¡Conoce Autentia! Twitter: https://goo.gl/MU5pUQ Instagram: https://lk.autentia.com/instagram LinkedIn: https://goo.gl/2On7Fj/ Facebook: https://goo.gl/o8HrWX