Servidores de Aplicação Java EE

1. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Application Servers, Por Que Ainda Precisamos Deles?
Bruno Borges
Principal Product Manager
Oracle Latin America
Agosto, 2014

2. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
•Bruno Borges
–Principal Product Manager, Java Evangelist
–Oracle Latin America
–@brunoborges
–bruno.borges@oracle.com
Speaker

3. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
•Aplicações em multicamadas
•Clients
–Browsers, Mobile Apps, REST clients, Web Services, Remote EJB Clients (RMI- IIOP)
•Web Tier
–JSP/Servlet, JSF, REST services, Web Services, WebSockets
•Business Tier
–EJBs, JMS, JPA, JCA
Arquitetura Java EE Comum – Monolítica

4. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |

5. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
”If you can't build a Monolith, what makes you think Microservices are the answer? ”
–Simon Brown, Coding the Architecture
bit.ly/ballofmud
μServices

6. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |

7. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Java Server-side Containers
ndertow

8. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Frameworks e Plataformas
Dropwizard

9. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Management, Monitoring, Config, Container Tools
Shipyard

10. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Microservices
•Sem dúvida um modelo de arquitetura interessante, “moderno”
•Mas não é novo (SOA)
•Requer alto nível de expertise
–DevOps, Infraestrutura, Deployment, ALM, etc
•Requer integrar diferentes tecnologias e produtos
–Administração e Monitoramento
–Configurações
–Diagnóstico
•Lidar com múltiplos fabricantes

11. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |

12. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Source: bit.ly/archcodestyle

13. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
15
Java Enterprise Edition Platform
Java EE 7
DEVELOPER
PRODUCTIVITY
Java EE 7
–Batch
–Concurrency
–Simplified JMS
–More annotated POJOs
–Less boilerplate code
–Cohesive integrated platform
–WebSockets
–JSON
–Servlet 3.1 NIO
–REST
MEETING ENTERPRISE DEMANDS

14. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Application Servers
•Open Source
–GlassFish
–WildFly
–Apache TomEE
•Comerciais
–Oracle WebLogic Server
–IBM WebSphere Application Server
–JBoss

15. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Application Servers com Dynamic Clustering
Oracle Confidential – Internal/Restricted/Highly Restricted
17
•Aplicações distribuídas escaláveis
•Processamento distribuído JMS
•Administração Centralizada
Configuração Simplificada de Clusters
Dynamic Clusters

16. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Whole Server Migration

17. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
JMS Replicated Store em Memória

18. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
JDBC Statement Cache Adapting on Memory Pressure

19. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Data Source Connection Shrinking on Memory Pressure

20. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Do que os App Servers já são capazes?
•Monitoramento de N apps
•Gerenciamento e Coordenação de Recursos
–DB Connections, JMS, Security Providers, Connectors com Legados, Transaction Management (XA)
•ClassLoader Isolation não é mais um problema em app servers
•Clustering, Load Balancing, Fail-over
•Features de Segurança
•Disaster Recovery
•Online Upgrade/Patching

21. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
Arquitetura Java EE Distribuida
•Diversas aplicações
•Modelo SOA
–Serviços REST
–Serviços SOAP
•EJBs remotos distribuidos
•Camada Web desacoplada
–Talvez até em outra linguagem
App1
App3
App2
Front-end Web
Serviços REST WebServices SOAP
Back-end

22. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
O que falta para os app servers?
•Gerenciar recursos de SO para completo isolamento das aplicações
App Server
Memória
CPU
Network IO
App1
App2
App3
Virtualization

23. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |
“If you watch the software industry backwards, it starts with kids flailing; ends with old guys solving impossible problems by thinking hard.”
–Gary Bernhardt twitter.com/garybernhardt/status/152455259543961600

24. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |