Chris Schalk, Developer Advocate Ignacio Blanco, Software Engineer

Introduction to Google App Engine for Java

Con: Juan Pablo Picasso, Pablo Francavilla de Getsense

DevFest 2009 November 17th Buenos Aires

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Agenda

•  What does it take to host a Java Web application?

•  Introducing Google App Engine for Java

•  App Engine Review for Java –  A Complete Java development stack

•  Demos, Demos, Demos!

•  Java App Engine use in Argentina

•  Questions

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What does it take (for a Java developer) to host a Web application?

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Doing it yourself in Java is still complex!

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Hosting with Java still means hidden costs

•  Idle capacity

•  Software patches & upgrades

•  License fees

•  IT staff server wrangling

•  Traffic & utilization forecasting

•  Upgrades

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Google App Engine – now with Java!

•  Easy to build

•  Easy to maintain

•  Easy to scale

And it’s still…

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All the same services for Java App Engine as with Python

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Apr 2008 Python launch May 2008 Memcache, Images API Jul 2008 Logs export Aug 2008 Batch write/delete Oct 2008 HTTPS support Dec 2008 Status dashboard, quota details Feb 2009 Billing, larger files Apr 2009 Java launch, DB import, cron support,

SDC May 2009 Key-only queries Jun 2009 Task queues Aug 2009 Kindless queries Sep 2009 XMPP Oct 2009 Incoming Email

18+ months in review

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Same Distributed web hosting platform

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Same Distributed web hosting platform

•  Parallel processing

•  Scales automatically

•  Available globally

•  Configuration free

•  Built-in DoS protections

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Same Distributed web hosting platform

SCALABILITY for Java as well

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Same Specialized services

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Same App Engine Dashboard

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Same initial free use policy as Python

•  ~5M pageviews/month

•  6.5 CPU hrs/day

•  1 GB storage

•  650K URL Fetch calls

•  2,000 recipients emailed

•  1 GB/day bandwidth

•  N tasks

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App Engine and Java Standards

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Based on Java Standards

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Based on Java Standards

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Extended Language support through JVM

•  Java •  Scala •  JRuby (Ruby) • Groovy • Quercus (PHP) • Rhino (JavaScript) •  Jython (Python)

Duke, the Java mascot Copyright © Sun Microsystems Inc., all rights reserved.

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Development Tools for Java App Engine

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Google’s Complete Java Development Stack

+

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Google Plugin for Eclipse

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Google Plugin for Eclipse

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NeatBeans Plugin for Java App Engine

http://kenai.com/projects/nbappengine/

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Demo

•  Getting started –  How to get an account

–  Dealing with registration issues here in Argentina

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Demo

• How to build and deploy a Java AE App in 30 seconds

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Demo

•  Lolcat Wave Robot –  From the GWT client

to a Google Wave Bot!

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Demo

•  Demonstrating “Plane Crazy” •  Uses DataStore for Airplane, Activities, People data

•  Uses email service for correspondence

•  Uses XMPP for simple chatbot access

Live Demo: http://plane-crazy.appspot.com Source: http://code.google.com/p/plane-crazy-demo/

Java Development with Google App Engine in Argentina

Local Experts using Google App Engine for Java

Juan Pablo Picasso, Pablo Francavilla

Using App Engine and other Google Cloud products

•  Cashflow Spreadsheets Integration

•  latamvalley.com

Cashflow Spreadsheets Integration

–  “Google Apps + Your Apps”: integración de Google Spreadsheets con SaaS financiero mediante GAE/J

–  Reportes

–  Escenarios

–  URL Fetch API –  XML

•  Costo cero en infraestructura

•  Reutilización de know-how Java

•  Disponibilidad del Servicio

•  Comunidad muy activa y en crecimiento

+ = Optimización de procesos internos

Cashflow Spreadsheets Integration

latamvalley.com

latamvalley.com

•  “Uniendo a las Personas y Proyectos de Internet de Latinoamérica”

•  Base abierta de:

•  Empresas

•  Personas

•  Productos

•  Proveedoras de Servicios

•  Inversoras de Capital

•  Apache Wicket

•  Images API

•  Datastore Persistence (JDO)

•  Custom authentication

•  JUnit

+ = Scrum Working Software desde la iteración

1 (one week)

latamvalley.com

Nuestro “Feedback”

•  Import/Export SQL •  SSL para Google Apps Domains •  Generación de Imágenes •  + tools para entorno development •  Tools Python == Tools Java

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Questions

Q&A

Google

Chris Schalk •  Twitter: @cschalk •  cschalk@gmail.com

Ignacio Blanco • blanconet@google.com

Getsense

Juan Pablo Picasso, Pablo Francavilla

http://groups.google.com/group/gtug-ar

Foro GAE en Español La seguimos en el break gae@getsense.com.ar