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Java EE 7 at JAX London 2011 and JFall 2011
The document discusses the Java EE 7 platform and its focus on providing a platform as a service (PaaS). Key points include: 1) Java EE 7 will define new platform roles and add metadata to support multi-tenancy and cloud-based provisioning and configuration. 2) It will provide APIs for cloud environments and extend existing APIs to support multi-tenancy. 3) The goal is for Java EE to become a PaaS itself by enabling automatic provisioning of services that applications declare dependencies on.
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Java EE 7 at JAX London 2011 and JFall 2011
- 1. The Java EE7 Platform: Developing for the Cloud Arun Gupta, Java EE & GlassFish Guy blogs.oracle.com/arungupta, @arungupta 1 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 2. The following isintended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle s products remains at the sole discretion of Oracle. 2 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 3. Java EE 6Implementations Fastest implementations of a Java EE release ever! 3 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 4. Java EE –Developer Adoption Downloads 40 Million+ 45 Millions 40 35 30 25 20 15 10 5 0 FY 06 FY 07 FY 08 FY 09 FY 10 FY 11 FY 12 4 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 5. Java EE 7 5 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 6. Today’s Cloud OfferingsAre Vendor-Specific Infrastructure as Platform as Software as a Service a Service a Service … 6 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 7. Java EE 7Focus: Platform as a Service • Provide way for customers and users to leverage public, private, and hybrid clouds • PaaS support entails evolutionary change • Next logical step for Java EE – J2EE à Java EE 6 : The Java EE Platform provides services – Java EE 7 : The Java EE Platform IS a service 7 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 8. Java EE 7PaaS Roadmap • Define new platform roles to accommodate PaaS model • Add metadata – For service provisioning and configuration – For QoS, elasticity – For sharing of applications and resources – For (re)configurability and customization • Add useful APIs for cloud environment – JAX-RS client API, Caching API, State Management, JSON,… • Extend existing APIs with support for multi-tenancy 8 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 9. Roles Developer PaaS Provider PaaS Customer/ JVM JVM JVM JVM JVM JVM JVM JVM JVM Tenant Machine Machine Machine PaaS Product Provider JVM JVM JVM JVM JVM JVM JVM JVM JVM Deployer Machine Machine Machine PaaS Account Tenant 1 Tenant 2 Tenant 3 Manager Application Submitter PaaS Administrator Application Administrator 9 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 10. Java EE 7Focus Area: Cloud Services, Not Just APIs • In the cloud tenant applications Tenant App Tenant App Tenant App consume services Java EE Application Level Services Queuing Persistence Caching • PaaS administrators host, Service Service Service … configure, and manage PaaS Infrastructure Services application and infrastructure Security Provisioning File … services Service Service Service Platform as a Service - Services • Existing APIs in Java EE need to IaaS Infrastructure Services be updated to be service-enabled and tenant-aware Virt VIP VLAN Volume LBR … – Example: pluggable services, late binding Infrastructure as a Service and tenant id injection 10 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 11. Old Java EEmodel Database 1 Provision and Initialize Service • Configure Java EE resources – JDBC, JMS etc LDAP Service Deploy Application EAR 2 Provision and Initialize • Messaging 3 Provision and Initialize Service Application 4 Provision and Initialize Container 5 Deploy Application (EAR/ GAR/SAR …) 11 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 12. Java EE 7Model: Auto-Provision Services from Application Dependencies • Provision and deploy application 1 Provision and Initialize Cloud Administration Service resources (e.g. LDAP stripe, data source instantiation and Database Service connection …) 2 Provision and Initialize • Extensible Deployment Models LDAP Supporting Multiple Frameworks 3 Provision and Initialize Service • Spring, Seam, Play … Messaging 4 Provision and Initialize Service Application 5 Deploy Application (EAR/ GAR/SAR …) Container 12 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 13. Services • Cloud apps consume services – Persistence, queueing, mail, caching, … • Service metadata facilitates ease of use when deploying into the cloud @DataSourceDefinition( name=“java:app/jdbc/myDB”, className=“oracle.jdbc.pool.OracleDataSource”, isolationLevel=TRANSACTION_REPEATABLE_READ, initialPoolSize=5 ) 13 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 14. Services • Cloud apps consume services – Persistence, queueing, mail, caching, … • Service metadata facilitates ease of use when deploying into the cloud @JMSConnectionFactory ( name=“java:app/myJMSConnectionFactory”, resourceType=“javax.jms.QueueConnectionFactory”) @JMSDestination( name=“java:app/myQueue”, resourceType=“javax.jms.Queue”) 14 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 15. Services • Cloud apps consume services – Persistence, queueing, mail, caching, … • Service metadata facilitates ease of use when deploying into the cloud @MailSession ( name=“java:app/mailSession”, from=“MyService@ExtraServices.com” ) 15 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 16. Services • Cloud apps consume services – Persistence, queueing, mail, caching, … • Service metadata facilitates ease of use when deploying into the cloud @ConnectorService ( name=“java:app/myCustomConnector”, type=“com.extraServices.customConnector.class”, properties = {…} ) 16 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 17. Java EE 7Focus Area: Elasticity Java EE 7 Focus: Move the Bar Right Elasticity Continuum Java EE Cluster Elastic Cluster Elastic Cluster Capacity Ca on Demand Single node Java EE Multi-Node Dynamic Self Adjusting Non-Elastic Multi-Instance Clustering SLA Driven Elasticity • Service Levels • Minimum and Maximum Instances • Futures – Self Adjustment, Capacity On Demand 17 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 18. Example Scenario “A software company writes an application, submits it to a PaaS provider, then any number of tenants sign up for the application, deploy it, their end users access it” 18 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 19. Walkthrough (1) SimplyCRM DiabloCloud 19 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 20. Walkthrough (2) SimplyCRM DiabloCloud Applica3on Developer Writes App 20 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 21. Walkthrough (3) SimplyCRM DiabloCloud Signs up as a customer PaaS Customer PaaS Account Manager 21 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 22. Walkthrough (4) SimplyCRM DiabloCloud Submits the application Application System Administrator Submitter App 22 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 23. Walkthrough (5) ExtraServices DiabloCloud Discovers App 23 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 24. Walkthrough (6) ExtraServices DiabloCloud Signs up as a customer PaaS Customer PaaS Account Manager App 24 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 25. Walkthrough (7) ExtraServices DiabloCloud Deployer System Administrator Customizes and deploys the application App 25 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 26. Walkthrough (8) ExtraServices DiabloCloud Deployer System Administrator Provisions on Cloud infrastructure App 26 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 27. Walkthrough (9) ExtraServices DiabloCloud Deployer System Administrator Provisioned and Deployed App 27 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 28. Walkthrough (10) ExtraServices DiabloCloud Access the application End-‐Users Provisioned and Deployed App 28 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 29. Walkthrough (11) ExtraServices DiabloCloud End-‐Users Access the application Provisioned and Deployed App Administrator Administers the application 29 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 30. Walkthrough (12) ExtraServices DiabloCloud System Administrator Monitors End-‐Users Access the application Provisioned and Deployed App Administrator Administers the application 30 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 31. Demo PaaSing a Java EE Application in the Cloud 31 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 32. Conference Planning inthe Cloud Java EE Application JSF JPA Deploy Services EJB Metadata <glassfish-services> <service-description init-type="LB" name="ConferencePlanner-lb"> <template id="LBNative"/> <configurations> <configuration name="https-port" value="50443"/> <configuration name="ssl-enabled" value="false"/> <configuration name="http-port" value="50080"/> </configurations></service-description> <service-description init-type="JavaEE" name="ConferencePlanner"> http://glassfish.org/javaone2011 <characteristics> <characteristic name="service-type" value="JavaEE"/> </characteristics> <configurations> <configuration name="max.clustersize" value="4"/> <configuration name="min.clustersize" value="2"/> </configurations> </service-description> ... </glassfish-services> 32 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 33. Service Provisioning Load Balancer Java EE Java EE ... Java EE Database 33 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 34. Multi-tenancy in JavaEE 7 • Support for separate isolated instances of the same app for different tenants – One application instance per tenant – Tenants correspond to units of isolation – Multitenant apps are declared as such – Each instance customized and deployed for a single tenant – Limited form of SaaS • Mapping to tenant done by the container • Tenant id available to application – E.g., under java:comp/tenantId or by injection 34 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 35. Java EE 7Focus Area: Application Level Multi Tenancy • Goal: Simple configuration • Flexible tenant discriminator support • Other areas impacted - JNDI, JMS, EJB … @Entity @Table(name=“EMP”) @MultiTenant(SINGLE_TABLE) depart_id DEPT_ID @TenantDiscriminator(name=“company-‐id”, columnName=“COMPANY”) public class Employee { EMP EMP_ID VERSION F_NAME L_NAME GENDER DEPT_ID 1 1 John Doe M 1 2 3 Jane Doe F 2 SELECT * FROM EMPLOYEE WHERE L_NAME LIKE ‘D%’ AND DEPT_ID= 1 35 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 36. Persistence Layer Multi-tenant Taxonomies • Dedicated App, Dedicated Database • Shared App, Dedicated Database • Dedicated App, Shared Database • Shared App, Shared Database 36 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 37. Dedicated App, DedicatedDatabase Persistence Layer Multi-Tenant Taxonomies App is configured for tenant-id at bootstrap and connects to the data source 37 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 38. Shared App, DedicatedDatabase Persistence Layer Multi-Tenant Taxonomies App knows tenant-id and connects with the tenant-specific data source 38 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 39. Dedicated App, SharedDatabase Persistence Layer Multi-Tenant Taxonomies Tenant-id configured at bootstrap and connects to tenant-specific table or striped table 39 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 40. Shared App, SharedDatabase Persistence Layer Multi-Tenant Taxonomies App knows tenant-id and connects to tenant specific table or striped table 40 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 41. Java EE 7Is Not Just Cloud-y • Alignment of ManagedBeans across CDI, EJB, JSF,… – POJO à ManagedBean à Enterprise JavaBean – Extension of container-managed transactions beyond EJB • Further simplifications for ease-of-development – JMS 2.0 focus on ease-of-development – Expanded use of dependency injection – Expanded service metadata; improved configuration • Pruning – EJB CMP and BMP, JAX-RPC, Deployment API • Update to Web Profile 41 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 42. Java EE 7– Candidate JSRs Web Jcache 1.0 JAX-RS JSP 2.2 Conainer 2.0 JSF 2.2 (JSR 107) CDI Extensions EL 3.0 Extensions Bean Validation 1.1 Concurrency Servlet 3.1 Utilities 1.0 State CDI 1.1 / Interceptors 1.1 / JSR 250 1.1 Management 1.0 Batch Managed Beans 1.0 EJB 3.2 Processing 1.0 JPA 2.1, JTA 1.1 JMS 2.0 JSON 1.0 42 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 43. Transparency • Our Java EE 7 JSRs are run in the open on java.net – http://javaee-spec.java.net – One project per spec – e.g., jpa-spec, jax-rs-spec, jms-spec… • Publicly viewable Expert Group mail archive – Users observer list gets copies of all Expert Group emails • Publicly viewable download area • Publicly viewable issue tracker • Commitment to match JCP 2.8 Process 43 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 44. Status and Schedule • Nearly all JSRs up and running • Remaining ones to be filed in next few weeks • Final release target: Q3 2012 • Date-driven release: anything not ready will be deferred to Java EE 8 44 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 45. How to Getin the Loop • Java EE 7 Expert Group Project – http://javaee-spec.java.net • Java EE 7 Reference Implementation – http://glassfish.org • The Aquarium – http://blogs.oracle.com/theaquarium 45 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.
- 46. The Java EE7 Platform: Developing for the Cloud Arun Gupta, Java EE & GlassFish Guy blogs.oracle.com/arungupta, @arungupta 46 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.