Global Day of Coderetreat (17/11)

Hi JUGgers!

Ready for our next event? We hope so!

This time we invite you to participate next Saturday 17th in the Global Day of Coderetreat. Coderetreat is a day-long, intensive practice event, focusing on the fundamentals of software development and design. By providing developers the opportunity to take part in focused practice, away from the pressures of 'getting things done', the coderetreat format has proven itself to be a highly effective means of skill improvement. Practicing the basic principles of modular and object-oriented design, developers can improve their ability to write code that minimizes the cost of change over time.

The process is really simple:

1. Start with a simple programming problem: Conway's Game of Life
2. We will work with different partners to discuss and solve the problem
3. We will add restrictions to force us to consider different approaches
4. After each round, we will throw out your code and repeat!

More info:
https://www.coderetreat.org/pages/about/
http://globalday.coderetreat.org/

This event will be possible thanks to Codurance,  they will host event and all the drinks and food we will have during all the day (including coffees and other beverages), so thank you so much for your support!

Hope to see you there and do not forget to RSVPed in Meetup!

Orquestación en Kubernetes para desarrolladores Java (29/9)

Hola!

Ya estamos de nuevo a la carga con un nuevo evento (próximo 29/9) organizado en colaboración con la comunidad Hispana! 

Desde España, e integrada con la primera conferencia Java en Galicia, el XantarJ, el grupo de usuarios de Vigo en colaboración con el CoruñaJUG y el grupo local XantarDev serán los encargados de orientar (nuestra 4a sesión del año) en el mes de Septiembre de 2018: Orquestación en Kubernetes para desarrolladores Java

Java 10 viene con muchas características necesarias para ejecutar aplicaciones JVM en Docker. El objetivo de este taller es desplegar una aplicación Java usando Docker & Kubernetes con los ajustes y límites de memoria y CPU adecuados.

En esta sesión, construiremos una imagen de Docker con una aplicación Java basada en el framework Netty. Esta aplicación tendrá un tamaño muy pequeño siguiendo las mejores prácticas de Docker y se aprovechará de Java Platform Module System (JPMS) presentado en la versión JDK 9. Desplegaremos la aplicación en Kubernetes y la escalaremos para demostrar cuán poderosa es hoy en día la JVM en conjunto con Docker y Kubernetes.

Luego expondremos las métricas de aplicaciones y JVM, que serán consumidas por Prometheus, un sistema que registra datos de series temporales (telemetría) para monitorear y alertar, y usaremos Grafana para consultar y generar métricas desde los pods de la aplicación.

Durante todo el workshop, descubriremos los errores más comunes al trabajar con Docker y la JVM y cómo evitarlos.

Únete a este evento, reserva tu plaza y haz parte de las comunidades de habla hispana!

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Si es posible trae tu laptop o equipo portátil para practicar con nosotros, tendremos 2 horas de sesiones técnicas y ejercicios prácticos.

Nivel: Principiantes

Tipo: Taller

Duración: 2 horas

Preparación del taller:

• Instalación de Docker o Docker Toolbox - https://www.docker.com/community-edition
• Instalación de VirtualBox - https://www.virtualbox.org/

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Agenda

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17:00 - 17:05: Saludo de bienvenida (VigoJUG)

17:05 - 17:15: Presentación Workshop

17:15 - 18:45 Workshop Kubernetes

18:45 - 19:00 Cierre (CoruñaJUG)

19:00 -19:30 Reunión local cada JUG

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Speakers

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José Corral: José ha participado en despliegues de Kubernetes en producción desde 2016 (Versión 1.2 de Kubernetes), su día a día consiste en ayudar a aterrizar y asentar despliegues de Kubernetes en equipos y empresas de distintos tamaños y ámbitos

Antón Rodríguez Yuste: Antón es Director Técnico de Optare Solutions, consultora con sede en España y México, y co-organizador de los JUGs de Vigo y A Coruña, además de unos de los organizadores de XantarJ, la mayor conferencia Java de Galicia.

Ismael Hassan: Tras algunos años con la Universidad de La Coruña haciendo desarrollos de Recuperación de Información, Ismael trabajó en Holanda y Abu Dhabi para, finalmente, incorporarse a Elastic donde trabaja como Ingeniero de Soporte desde Coruña, ciudad en la que además co-organiza el Java User Group.

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La comunidad Hispana

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Los grupos de usuarios de Java de España y Latinoamérica nos hemos unido para compartir conocimientos. Empezando en febrero del 2018 nos hemos ido reuniendo cada 2 meses para realizar talleres sobre temas de tecnología de gran interés en nuestras comunidades.

Entre otras comunidades formamos parte los grupos: Cali JUG, Chile JUG, Coruña JUG, Ecuador JUG, Guate JUG, Madrid JUG, Málaga JUG, Medellín JUG, Nicaragua JUG, Panamá JUG, Perú JUG, Vigo JUG y claro, Barcelona JUG ;-)

Building voice experiences for Amazon Echo with Alexa Skills (18/9)

Hi devs! 

We are back again with another great event for this month!

Have you ever wanted to build an Alexa Skill? Now is your opportunity to join us for a half day (1/2) session in the Amazon Barcelona office on the 18th of September to learn the basics to publish your first Skill.

Alexa is the voice-based service within Amazon Echo, incorporates a set of skills, that allow users to interact with different technologies and services using natural language. Developers can also create custom Skills that can be published in the Alexa App Store and used from any device that incorporates Alexa. During this session we will talk about why we believe voice is the future of the user experience (UX), take a look at the structure of the Alexa Engine and finally demonstrate how to build a custom Alexa Skill with the Alexa Skills Kit SDK for Java and AWS Lambda. This will be the agenda of the event:

• 14:00-14:30 Register
• 14:30-15:00 Intro to Alexa
• 15:00-16:00 Designing a voice interaction model
• 16:00-16:30 Coffee-break
• 16:30-18:00 Building the backend (with AWS Lambda & Java) 

The session will be led by Alexa Evangelists German Viscuso and Memo Doring. German works in Alexa Skills Kit Spain as Technology Evangelist and he is a fan of computers since he was 8 years old. He started his professional career as a software developer and later transitioned into developer advocacy roles. Memo is Senior Solutions Architect at Amazon Alexa and has 10 years of experience in the field of mobile technologies, serving in a variety of positions at Research In Motion, Apple and Amazon. He currently focuses on working with developers to help them successfully create new skills for Amazon Alexa.

Requirements:

1. Basic Java programming knowledge
2. Fully charged laptop to the event.
3. An Amazon Developer account. You can create it here
4. And also an AWS account. You can create it here prior to arrival if you don’t have one
   ( *please note a Credit Card is needed for registration, however no charges will be placed – no cost incurred* )

We look forward to seeing you there, and remember, seats are very limited! First come, first served !

Sign up here and see you next Tuesday 18th!

Antora , the last iteration in the Asciidoctor ecosystem

Hi devs !!!!
We're back on stage starting the season with a new meetup next 20th of September in the Everis LivingLab !!!

https://antora.org/

Antora is the last iteration in the Asciidoctor ecosystem.

Asciidoctor has proven to be an excellent solution to write all sorts of documentation with its embedded features, extensibility and because it’s fun! "Docs as code" is no longer a new thing, and now Antora takes it a step further and offers a platform to aggregate, render and publish your documentation from different versioned repositories into ready-to-publish sites.
In this session we see how Antora can help you by simplifying your documentation pipeline, encouraging good practices and above all, ensure your documentation stays up with the quality of your code."

Speakers on this session will be :

>> Abel Salgado Romero ( @abelsromero )
Software engineer working at everis. Coming from a career focused on Content Management solutions around Java technologies has recently shifted to cloud solutions in Azure. Strong advocate for open source philosophy, and the importance of good testing and documentation. Contributes maintaining the asciidoctor-maven-plugin and lending a hand wherever he can.

>> Alex Soto ( @alexsotob )
Software engineer at Red Hat in Developers group. He is a passionate about Java world, software automation and he believes in the open source software model. Alex is the creator of NoSQLUnit project, member of JSR374 (Java API for JSON Processing) Expert Group, the co-author of Testing Java Microservices book for Manning and contributor of several open source projects such as Arquillian ecosystem or Asciidoctor. He is an international speaker presenting his talks at software conferences like Devoxx, JavaOne, JavaZone or JavaLand.

Don't forget to register in Meetup :

Register !!!!

Accelerating the Future of Java, Faster ( 5/7 )

Hi devs !!!

We are back again on stage, and this time with another interesting talk presented by a key speaker : Georges Saab , VP of Development for the Java Platform Group at Oracle.

As one of the most pervasively used technologies in our lifetime, Java continues to innovate the application world around us. Through continued modernisation Java offers developers a contemporary language and platform to create the next generation of rich, scalable, and secure enterprise applications.  And as the technology landscape changes around us, often times at an ever-more increasing pace, Java is primed to offer developers continued uniqueness to address new-found opportunities.  In this session, learn how Oracle continues to steward ongoing Java technology enhancements that allow developers the ability to improve and accelerate application innovation, as well as develop and deploy solutions especially for the the modern enterprise cloud environment. 

Georges Saab is the vice president of development for the Java Platform Group at Oracle. His group is responsible for Java Standard Edition including the Java language, core libraries, and the Java Virtual Machine. Georges is a veteran of programming language and platform development, with more than 25 years in this field. His work with the Java platform began as a developer of Java Standard Edition at JavaSoft and Sun Microsystems, where he was a founder of the Swing group and Java Webstart, and continued as he ran development of the JRockit JVM for many years at BEA Systems. Georges is the Chairperson of the OpenJDK governing board. You can follow him on Twitter at: @gsaab

Don't forget to Register !!!!!

Java 9 Collections and Performance (17/5)

Hi devs!

Our next event is just around the corner! Thanks to our friends from Oracle Netsuite we will have the opportunity to play with Java 9 on an interesting workshop! ;-)

In this session we'll take a look at the new developer features that Java 9 delivers.

In particular, we'll look at Stream API improvements and see how our code can be substantially reduced. Finally, we'll benchmark it using JMH (Java Microbenchmark Harness) to analyze the impact the enhancements have on runtime.

Beers and snacks will be provided thanks to Oracle Netsuite.

Agenda:
19:00 - 19:30 Java 9 Streams API Overview
19:30 - 20:00 Dojo
20:00 - 20:15 Beer Break
20:15 - 20:45 Microbenchmarking

Remember to bring your own laptop, RSVPed and happy coding!

Sensorize your Life Workshop (31/5)

Hi devs!

Here we have our next event, this time a workshop to play with IoT and Arduino! Yay! ;-) Thanks to our friends from Netsuite we will have a great time playing with Arduino and the IoT. Also we will have a great time with drinks and food provided by Netsuite, so one more time, thank you to their support. Below you can see below the content and purpose of the workshop.

Nothing more, remember to RSVPed and have a nice coding and see you next 31th!

PD: Meanwhile we are working on the Java and JVM Barcelona Conference ( www.jbcnconf.com ) ! In the case you don't have your ticket, hurry up and buy your ticket! This year is going to be even better ;-) !

Abstract
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The Internet of Things is a hot topic and is set to change how we live. But how much do you really know about it? This event demystifies the subject and shows you the potential of the technology.

In this practical workshop, you will learn about the basic concepts of the Internet of Things, discover how to connect a built IoT device, and push environmental metrics to a container-based monitoring platform deployed on Oracle Cloud Services.

At this workshop, you will:

• Program a mini board using Arduino, mastering the basic controls used to trigger actions in the on-board LED
• Connect a shield to detect temperature and humidity values
• Display data on an OLED display
• Send data to a persistent data store
• Push data to the cloud: Adafruit IO and Oracle Cloud Services

Topics covered:
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• Introduction to the Arduino IDE
• Board installation
• Introduction to Arduino sketches and Hello World
• Basic LED controls: blocking, non-blocking and fade-in/fade-out
• Environmental sensor and display control
• Temperature & humidity output display and monitoring
• Push data collected to the Adafruit IO platform and to a container-based monitoring platform deployed on Oracle Cloud Services

Prerequisites & requirements
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No prior experience required! Participants do need to bring their own laptops.
We recommend you install Arduino IDE beforehand. You can download the version for your OS here: https://www.arduino.cc/en/Main/Software