Transcript Java EE - Java.net
Java EE 7: Developing for the Cloud
Arun Gupta, Java EE & GlassFish Guy 1 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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The following is intended 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.
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Java EE 6 Platform December 10, 2009
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Top Ten Features in Java EE 6
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EJB packaging in a WAR Servlet and CDI extension points Optional web.xml
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Type-safe dependency injection CDI Events JSF standardizing on Facelets EJBContainer API @Schedule 9.
EJB No Interface View 10.
Web Profile 4 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Java EE 6 Implementations
Fastest implementations of a Java EE release ever!
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Today ’s Cloud Offerings are all Proprietary
Infrastructure as a Service Platform as a Service Software as a Service
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Java EE 7
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Java EE 7 Focus: Platform as a Service
• Next logical step for Java EE – J2EE Java EE 6 : The Java EE Platform provides services – Java EE 7 : The Java EE Platform IS a service • PaaS support entails evolutionary change • Provide way for customers and users to leverage public, private, and hybrid clouds 8 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Java EE 7 PaaS 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 9 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Cloud Services, Not Just APIs
• • • Tenant applications consume services PaaS administrators host, configure, and manage application and infrastructure services Existing APIs in Java EE need to be updated to be service-enabled and tenant-aware – Example: pluggable services
Tenant App Tenant App Tenant App Java EE Application Level Services Queuing Service Persistence Service Caching Service … Security Service PaaS Infrastructure Services Provisioning Service File Service Platform as a Service - Services … Virt IaaS Infrastructure Services VIP VLAN Volume LBR … Infrastructure as a Service
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Roles
Developer PaaS Customer/ Tenant JVM JVM JVM Machine JVM JVM JVM Machine JVM JVM JVM Machine Deployer Application Submitter Application Administrator JVM JVM JVM Machine Tenant 1 JVM JVM JVM Machine Tenant 2 JVM JVM JVM Machine Tenant 3
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PaaS Provider PaaS Product Provider PaaS Account Manager PaaS Administrator
Existing Java EE model
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• Configure Java EE resources – JDBC, JMS etc • Deploy Application EAR
2 Provision and Initialize Provision and Initialize 3 Provision and Initialize 4 Provision and Initialize 5 Deploy Application (EAR/GAR/SAR …)
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Database Service LDAP Service Messaging Service Application Container
Java EE 7 Model: Auto-Provision Services from Application Dependencies
• Provision and deploy application resources (e.g. LDAP stripe, data source instantiation and connection …) • Extensible Deployment Models Supporting Multiple Frameworks • Spring, Seam, Play …
1 2 3 Provision and Initialize Provision and Initialize Provision and Initialize Cloud Administration Service Database Service LDAP Service 4 Messaging Service Provision and Initialize 5 Deploy Application (EAR/GAR/SAR …) Application Container
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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 ) 14 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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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”) 15 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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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= “[email protected]” ) 16 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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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 = {…} ) 17 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Elasticity
Java EE 7 Focus: Move the Bar Right Elasticity Continuum Java EE Cluster Elastic Cluster Elastic Cluster Capacity on Demand Single node Non-Elastic
• Service Levels
Java EE Multi-Node Multi-Instance Clustering Dynamic Self Adjusting SLA Driven Elasticity
• Minimum and Maximum Instances • Futures – Self Adjustment, Capacity On Demand 18 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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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 ” 19 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Walkthrough (1)
SimplyCRM DiabloCloud 20 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Walkthrough (2)
SimplyCRM Application Developer Writes App 21 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Walkthrough (3)
SimplyCRM Signs up as a customer PaaS Customer DiabloCloud PaaS Account Manager 22 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Walkthrough (4)
SimplyCRM Submits the application Application Submitter DiabloCloud System Administrator App 23 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Walkthrough (5)
ExtraServices Discovers DiabloCloud App 24 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Walkthrough (6)
ExtraServices PaaS Customer Signs up as a customer DiabloCloud PaaS Account Manager App 25 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Walkthrough (7)
ExtraServices Deployer Customizes and deploys the application DiabloCloud System Administrator App 26 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Walkthrough (8)
ExtraServices Deployer DiabloCloud System Administrator Provisions on Cloud infrastructure App 27 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Walkthrough (9)
ExtraServices Deployer 28 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
Insert Information Protection Policy Classification from Slide 8 DiabloCloud System Administrator Provisioned and Deployed App
Walkthrough (10)
ExtraServices End-Users Access the application DiabloCloud Provisioned and Deployed App 29 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Walkthrough (11)
ExtraServices DiabloCloud End-Users Access the application Administrator Administers the application 30 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Walkthrough (12)
ExtraServices End-Users Access the application Administrator Administers the application 31 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Demo
PaaSing a Java EE Application in the Cloud 32 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Conference Planning in the Cloud
Java EE Application JPA JSF
Deploy http://glassfish.org/javaone2011
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EJB Services Metadata
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Service Provisioning
Load Balancer Java EE Java EE
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Java EE Database 34 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Multi-tenancy in Java EE 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 35 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Java EE 7 Is Not Just Cloud-y
• Alignment of ManagedBeans across CDI, EJB, JSF, … – POJO ManagedBean Enterprise JavaBean – Extension of container-managed transactions beyond EJB • Further simplifications for ease-of-development – JAX-RS 2.0 Client API, hypermedia, bean validation, … – 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 36 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Java EE 7 – Candidate JSRs
CDI Extension s Web Container Extensions JAX-RS 2.0
JSF 2.2
JSP 2.2
EL 3.0
Servlet 3.1
CDI 1.1 / Interceptors 1.1 / JSR 250 1.1
Managed Beans 1.0
JPA 2.1
JTA 1.1
EJB 3.2
JMS 2.0
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Jcache 1.0
(JSR 107) Concurrency Utilities 1.0
State Management 1.0
Batch Processing 1.0
JSON 1.0
Transparency
• Oracle ’s 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 update to JCP 2.8 Process 38 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Status and Schedule
• All JSRs up and running • Early Drafts: JSF 2.2, JAX-RS 2.0, JPA 2.1, CDI 1.1
• Final release target: Q3 2012 • Date-driven release: Anything not ready will be deferred to Java EE 8 39 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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GlassFish Roadmap
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GlassFish v3 Java EE 6 support Single instance GlassFish Enterprise Mgr
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GlassFish Server 3.1
Centralized administration Clustering / HA GlassFish Server Control 2009 2010
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GlassFish Server 3.0.1
Oracle branding Oracle platform support Oracle interoperability 2011
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GlassFish Server 3.1.1
Bug fixes Updated components Incremental features
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GlassFish Server 3.1.2
Bug Fixes Incremental features 2012
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GlassFish Server 4 Java EE 7 Multitenancy PaaS-enablement
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Call to Action
• 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 41 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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Java EE 7: Developing for the Cloud
Arun Gupta, Java EE & GlassFish Guy blogs.oracle.com/arungupta, @arungupta, Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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43 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
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