Java EE, What's Next? by Anil Gaur
- 1. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Java EE, What’s Next? Anil Gaur GVP Engineering Oracle Cloud Platform Application Development
- 2. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. AppDev is About our Customer’s Entire Portfolio 2 Innovation Software - Find the Next Business Differentiation Software - Run Current Business Core Software - Keep the Lights On Release Hourly Fail Early Agile Business-centric Top Line Growth Bespoke Software Product-based Release Quarterly Fail Late Waterfall IT-centric Bottom Line Savings Packaged Software Project-based Copyright © 2016, Oracle and/or its affiliates. All rights reserved.
- 3. Copyright © 2015, Oracle and/or its affiliates. All rights reserved. | Enterprise Application Development Is Changing 3
- 4. Rapid Changes Over Past Few Years 4 Microservices Apps divided into many small pieces Distributed Computing Many data centers, AZs, regions, etc. Polyglot Java leads but use of others increasing New Technology Docker, Cloud, DevOps, etc. Driven by increasing business needs
- 5. How Do We Make This Easier? 5
- 6. Confidential – Oracle 6 Building on the Lessons Learned 12/4/2016 6Copyright © 2016, Oracle and/or its affiliates. All rights reserved. Use lessons learned and successful implementations JAX-RS Servlet Interceptors JMS JSON-PCDI JTA JPA WebSocket Compatible Application Servers Be pragmatic
- 7. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Java EE APIs - Backbone of Leading Open Source Projects 7 Java EE Containers Microservices Web Containers Web Frameworks PaaSREST
- 8. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Cloud Development Heterogeneous Clients • Mobile, REST, HTML5 Stateless Services • Managed and scaled independently Data Sources • Relational, non-relational User profile service Order service Partner service Catalog service Notificatio n service Import service HTTP/2 REST JSON XML/HTTP Event JAX-RS/JSON Notifications JAX-WS RDBMS NoSQL DB XML DBData Streams Key ValueEventsKey ValueJDBC 8
- 9. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | It’s Confusing! Too many choices.... Which components? Overall architecture? Standards? Vendor commitment?
- 10. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Proposed Enhancements for Java Enterprise Edition • New AppDev style for Cloud and Microservices • Build on proven technologies • Comprehensive – Programming Model, Packaging, Portability • Standards-based – This is a proposal only – Will work with the community and follow the JCP process 10
- 11. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Designed for Agility and Scalability with Security • Programming model – Extend for reactive programming – Unified event model, event messaging API – JAX-RS, HTTP/2, Lambda, JSON-B, … • Eventual consistency – Automatically event out changes to observed data structures • Key value/document store – Persistence and query interface for Key Value and Document DB • Security – Secret management – OAuth/OpenID support 11 App App App App
- 12. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Location Transparency and Resiliency • Configuration – Separate service packaging and configuration – API for external configuration • State – API for external state • Resiliency – Circuit breakers – Resilient commands – Standardized health reporting 12 Reliability, Monitoring Container Management Scheduling & Elastic Scaling Key Value Database Logging Config State Security Notification User profile service Order service Catalog service
- 13. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Packaging for Simplicity • Packaging – Docker model – Package applications, runtimes into containers – Separate service package and configuration – Standalone immutable executable binary – Multi-artifact archives, leveraging Java 9 • Serverless – New spec – interfaces, packaging format, manifest – Ephemeral instantiation • Multitenancy – Increased density – Tenant-aware routing and deployment 13 App Server Order service App Server Catalog service App Server User profile service
- 14. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 14 Platform Architecture Orchestration – Deployment, Scheduling, and Standup BareMetal Orchestration Deployment Manager Local Service Impls Additional Local Classfiles Java EE Cloud Native App Container Container Container Java EE Cloud Native App JLink Local Service Impls Additional Local Classfiles Java EE Cloud Native App With Just Enough Container Container Container Java EE Cloud Native App
- 15. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 15 Platform Architecture Orchestration – Inspection, Injection, and Wiring BareMetal Orchestration Container Config Cache Logging Platform Services Service Registry Java EE Cloud Native App Java EE Cloud Native App @Config @Cache @Logging @Service Name Impl Impl Impl Impl
- 16. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Recent Java EE 7 compatibility updates: Congratulations!Technical Focus Areas Extend for reactive programming Unified event model Event messaging API JAX-RS, HTTP/2, Lambda, JSON-B, ... Programming Model API to store externalized state State Automatically event out changes to observed data structures Eventual Consistency Extension to support client-side circuit breakers Resilient commands Standardize on client- side format for reporting health Resiliency New spec – interfaces, packaging format, manifest Ephemeral instantiation Serverless Secret management OAuth OpenID Security Package applications, runtimes into services Standalone immutable executable binary Multi-artifact archives Packaging Increased density Tenant-aware routing and deployment Multitenancy Externalize configuration Unified API for accessing configuration Configuration Persistence and query interface for key value and document DB Key Value/Doc Store 16
- 17. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Proposed Platform Architecture Java EE Packaging, Serverless, Multitenancy OS / Hypervisor Container Runtime Java SE Runtime Java EE Runtime Programming Model API Gateway Load Balancer HTTP/2 JSON-B Event API REST API Security API State API Config API Eventual Consistency Resiliency Key Value Store API 17 Key Value Database Logging Config State Security Notification Reliability,Monitoring ManagementandOrchestration SchedulingandElasticScaling
- 18. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 18 Java EE 7 Connector JAXBJSP Debugging Managed BeansJSPConcurrency EE Interceptors JAX-WS WebSocket Bean Validation JASPIC ServletJMS JTADeployment Batch JACCDependency Injection JAXR JSTL Management CDI EJB JAX-RPC Web ServicesJSF JPA JSON-PCommon Annotations EL JAX-RS Web Services MetadataJavaMail
- 19. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 19 Java EE 8 (Revised Proposal, 2016) Connector JAXBJSP Debugging Managed BeansJSPConcurrency EE Interceptors JAX-WS WebSocket Bean Validation JASPIC ServletJMS JTADeployment Batch JACCDependency Injection JAXR JSTL Management CDI EJB JAX-RPC Web ServicesJSF JPA Common Annotations EL JAX-RS Web Services MetadataJavaMail CDI JSON-B Security Bean Validation JSF JAX-RS JSON-P Servlet JSP
- 20. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 20 Engage Java EE Community • Feedback through Survey • Launch Java EE Next JSRs 2016 Java EE 8 • Specs, RI, TCK complete • Initial microservices support • Define Java EE 9 • Early access implementation of Java EE 9 Java EE 9 • Specs, RI, TCK complete • Modular Java EE runtime • Enhanced microservices support Java EE Roadmap 2017 2018
- 21. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Java EE, What’s Next? Anil Gaur GVP Engineering Oracle Cloud Platform Application Development