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Introduction to the BEA WebLogic Platform

Introduction to the BEA WebLogic Platform. Peter Laird Managing Architect WebLogic Portal. About the Speaker. Has 10 years of server side Java development experience Leads the architecture team for BEA WebLogic Portal, a leading Java enterprise portal product

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Introduction to the BEA WebLogic Platform

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  1. Introduction to the BEA WebLogic Platform Peter Laird Managing Architect WebLogic Portal Peter Laird. | 1

  2. About the Speaker • Has 10 years of server side Java development experience • Leads the architecture team for BEA WebLogic Portal, a leading Java enterprise portal product • Has worked on WebLogic Portal for 7 years as a developer and architect • Holds the following certifications • Oracle DBA • Cisco CCNA • Regular contributor to BEA’s developer website • http://dev2dev.bea.com BEA Systems

  3. Housekeeping • Oracle has made a bid to acquire BEA Systems • Can’t be discussed in this venue • This is a product talk • Usually not allowed, but was explicitly approved by IOUG • Will cover Java Enterprise Edition, enterprise portal, enterprise integration at a high level • Primarily focused on the WebLogic product stack BEA Systems

  4. Agenda • History of BEA and the WebLogic product line • Components of the WebLogic Platform • WebLogic Server • WebLogic Portal • Workshop for WebLogic • WebLogic Integration BEA Systems

  5. History of BEA Systems • Started in 1995 with venture capital to form a middleware company • Soon after acquired the Tuxedo product • Mission critical transaction processing platform • In use by banks, telecoms, airlines, etc • Based on the C programming language • Wide platform support • Positioned BEA as a player in the enterprise middleware space BEA Systems

  6. History of WebLogic • Started in 1995 with a few engineers • Began as a middle tier Java database connectivity server • Over time more features were added to the server • Often first implementations of new Java specifications • Became a general purpose Java application server • Rode the rise in popularity of server side Java • Acquired by BEA in 1998 • Java Enterprise Edition specification introduced by Sun in 1999 – WebLogic was the dominant implementation • Has been a leader in JEE ever since BEA Systems

  7. History of WebLogic Platform • In 1999, BEA began to build out the WebLogic product line • WebLogic Portal started as Personalization Server and Commerce Server in 1999 • Evolved into WebLogic Portal in 2001 with version 4.0 • WebLogic Integration began as a collection of products • BEA acquired Crossgain in 2001, a Java tooling specialist • WebLogic Workshop soon followed • All 4 products combined into an enterprise class platform, called WebLogic Platform • First coordinated platform release was version 8.1 in 2003 • WebLogic Platform at release 10.2 as of spring 2008 BEA Systems

  8. History of WebLogic Platform • WebLogic Server is the foundation of the platform • Integration and Portal are run on Server • Workshop provides the platform development experiences • WebLogic Platform is the focus of this talk BEA Systems

  9. History of the AquaLogic SOA Platform • In 2005, BEA introduced a new product line to complement Tuxedo and WebLogic • AquaLogic product line is focused on Service Oriented Architectures (SOA) • Some products in the AquaLogic suite • AquaLogic Service Bus • AquaLogic Enterprise Repository • AquaLogic Business Process Management • AquaLogic User Interaction Portal • AquaLogic Data Services Platform BEA Systems

  10. Core Values of the WebLogic Brand • Commitment to Java • Standards support • RASP - Reliability, Availability, Scalability, Performance • Hardware, O/S, and Database independent • WebLogic Platform interoperability • Easy upgrades and backwards compatibility • Support for applications blended with Open Source BEA Systems

  11. WebLogic Server BEA Systems

  12. WebLogic Server Overview • Will focus on differentiated features of WebLogic Server • Feature areas to discuss • Java Enterprise Edition • Single Process Architecture • Rich Internet Appliciation (RIA) support • EJB 3 and JPA support • Java Message Service • Security • Database Connectivity • Clustering • Application deployment BEA Systems

  13. WLS: Java Enterprise Edition • WebLogic Server (WLS) is a JEE (a.k.a J2EE) implementation • JEE 5 supported in WebLogic Server version 10 • Servlet 2.5 • EJB 3.0 – a major improvement • JSP 2.1 • JAX-WS 2.0 – a major improvement • JMS 1.1 • ...and many others • Number of other containers in the JEE space • WebLogic Server provides great implementations of the specs • But talking about the specs is not a good way to spend our time • Will focus on differentiated features BEA Systems

  14. WLS: Single Process Architecture • WebLogic Server can be deployed as a single JVM process • Does not require a front end HTTP proxy server • It contains a full featured HTTP stack in Java • Easy setup for development environments • For production, clustered configurations more common • Covered later… BEA Systems

  15. WLS: RIA Support • RIA applications are highly interactive • Implemented with Ajax, Flex, Laslo, etc • Clients fire many fine grained requests at the server • RIA apps can overload the server polling for updates to data being displayed • WebLogic Server has provided the AbstractAsyncServlet for many years • Client issues a request to the servlet to be notified on an update • Servlet delays fulfillment of the request, no thread is consumed • An application event notifies the servlet that an update has occurred • Servlet sends a response to the client BEA Systems

  16. WLS: RIA Support • WebLogic Server 10.3 adds on to the AbstractAsyncServlet • Provides an HTTP Pub/Sub server • Useful when implementing applications such as chat • Uses the Bayeux protocol BEA Systems

  17. WLS: JMS Support • Full support of JMS 1.1 • The additional features of WebLogic Server fall into the following high level categories: • Enterprise-grade reliability – transaction and fail-over features • Enterprise-level features – manageability, life cycle, resource pooling • Performance – memory and disk IO optimizations • Tight integration with WebLogic Server – works within the same process space • Interoperability – with other versions of WebLogic Server, with Tuxedo BEA Systems

  18. WLS: JMS Reliability • Full participation with transactions, including XA • File and Database backed persistent message storage • Store and Forward (SAF) protects against message loss when remote destination is unavailable • Advanced clustering and failover features • Transparent failover • Whole server migration • Load balancing BEA Systems

  19. WLS: Security Service SSPI • Every enterprise has different requirements and existing security systems • WebLogic supports a pluggable model for security (SSPI) BEA Systems

  20. WLS: Security - Authentication • Uses Java Authentication and Authorization Service (JAAS) as the foundation • Supports multiple user repositories concurrently • Use boolean flags (AND, OR) to define how they relate • Most popular authentication stores have an Authentication Provider implementation already • Database • LDAP • ActiveDirectory • SSO vendors • API can be implemented for custom repositories BEA Systems

  21. WLS: Database Connectivity • WebLogic Server has its roots in Java database connectivity BEA Systems

  22. WLS: Database Connectivity • Advanced connection pooling • Dynamic sizing • Connection testing • Statement caching • Multi Data Source • Wraps multiple actual Data Sources • Provides load balancing and fail-over • Data Source aliases • Maps the same Data Source into multiple JNDI names • Certified with many databases, including Oracle RAC BEA Systems

  23. WLS: Clustering • Recall a core value of the WebLogic brand: • RASP - Reliability, Availability, Scalability, Performance • Achieved primarily through WebLogic Server clustering BEA Systems

  24. WLS: Clustering • Application is deployed to the cluster machines • Client requests are load balanced across the cluster • Plugin to Apache, IIS; or hardware load balancer • Session affinity supported by the load balancer • Application state replicated to one other member of the cluster • HttpSession and Stateful Session EJBs • Primary and Secondary design • Cluster heart beat detects downed nodes • Clients of the affected node are sent to the secondary on next request BEA Systems

  25. WLS: MAN and WAN Clustering • Application is deployed on multiple clusters in multiple data centers • MAN and WAN clustering options handle HttpSession state • Metropolitan Area Network (MAN) • Low latency assumed between the data centers • Synchronous Http Session replication BEA Systems

  26. WLS: MAN and WAN Clustering • Wide Area Network (WAN) • High latency assumed between the data centers • Asynchronous Http Session replication • Uses a replicated database as the transport BEA Systems

  27. WLS: Application Deployment for Devs • WebLogic Server supports quick development round trips • Change-Aware Classloader • Replaces the affected module’s classloader to achieve a focused redeployment • Fast-swap • Uses an advanced form of Java class redefinition • Prevents any application redeployment after changing a class • Supports many edits, including adding and removing methods and changing method bodies BEA Systems

  28. WLS: Application Deployment for Prod • WebLogic Server supports advanced Production application management • Offers the following options: • In-place redeployment – immediately updates the application in the server, existing users are interrupted • Partial redeployment – allows only a subset of the application to be redeployed • Production redeployment – existing clients continue to use the old app, and the new app serves new clients • Can optionally bring application online to administrators only • For final testing purposes BEA Systems

  29. WLS: Virtualization • Key data center technology for reducing operating costs • Better hardware utilization by allowing servers to be consolidated into a virtual computing cloud • WebLogic Server supports virtualization efforts through its Virtualization Edition (WLS-VE) release • WLS-VE deploys on top of a special Java Virtual Machine, LiquidVM, that does not require an operating system • Liquid Operations Console manages application deployments into the WLS-VE cloud BEA Systems

  30. WLS: Virtualization BEA Systems

  31. WebLogic Portal BEA Systems

  32. WebLogic Portal • WebLogic Portal (WLP) is an enterprise portal product • Built on top of WebLogic Server • Deploys as a JEE application composed of many components • Too much to discuss, so will focus on the primary features • Primary feature areas we will discuss: • Portal Framework • Portlet Container • Portlet Federation • Portal Services BEA Systems

  33. Enterprise Portal Products • Enterprise portals consolidate many web applications into a single web application • Achieves a number of goals: • Efficient application management and deployment • Consistent user experience • Centralized security • Common infrastructure • WebLogic Portal is a product offering that supports these objectives. BEA Systems

  34. WLP: Portal Framework • Core concept to all portal products is the user interface • WLP has a highly scalable and customizable framework • Control tree implementation (like JSF) • Provides nested customization concepts – library, admin, user • Highly tuned caching for scalability • WLP supports these and other user interface controls: • Portal page – a logical page that is surfaced as a tab or menu item • Book – a collection of pages • Portlet – a small window into an application; often there are many portlets on a page • Header and Footer – artifacts that appear on the top and bottom of every page • Look and Feel – the style of the page BEA Systems

  35. WLP: Portal Framework BEA Systems

  36. WLP: Portal Framework Features • Dynamically defined Desktops • Create new portals from existing components in production • Interportlet Communication • Robust server-side eventing mechanism to allow portlets to communicate with each other • Framework Ajax • Automatically Ajax enables the portal without recoding the portlet • Framework automatically weaves in Ajax into existing portlets • Client-side JavaScript programming • JavaScript object model, REST APIs for dynamic customization • Community Framework • Allow users to organize themselves into communities • Community leaders can define their own Desktop without IT’s help BEA Systems

  37. WLP: Portlet Container • WLP officially supports portlet development using a number of technologies • JSP • JSF (JSP or Facelets) • JSR 168 • Struts/Pageflow • IFrame • Web Clipping • Workshop for WebLogic provides wizards for these types • Other technologies are known to work • Velocity • Spring Portlet MVC BEA Systems

  38. WLP: Portlet Federation • Portals support SOA initiatives • Often portlets consume remote data services • But requires the UI for the data service to be implemented for each Portal deployment • Portlet federation solves this problem BEA Systems

  39. WLP: Portlet Federation - WSRP • Industry standard for federation is WSRP • Web Services for Remote Portlets, an Oasis standard • SOAP based protocol for hosting portlet UI as a remote service • Provides rich portlet features – modes, states, user profile, postback • WebLogic Portal has been a leader for WSRP • Expert group participation • Robust specification implementation • Features above the specification BEA Systems

  40. WLP: Portlet Federation – HTTP • WebLogic Portal is a pioneer in a different federation approach • Portlet Publishing allows any deployed portlet to be a URL addressable widget • http://myportal.abc.com/portal/customer/orderList.portlet • Can be consumed by any web application via: • IFrame • Ajax snippet • Extends the value of developed portlets by allowing them to surface on legacy web applications • Targets the “long-tail” of IT web applications • Can also easily be consumed using other approaches • WLP portlets as Google Gadgets BEA Systems

  41. WLP: Portal Services • WebLogic Portal also includes a rich eco-system of out of the box services, like Content Management and Personalization BEA Systems

  42. Workshop Studio (formerly Workshop for WebLogic) BEA Systems

  43. WLW: Development IDE for the Platform • General purpose Java development platform • Java Web applications • JEE applications • IDE for the WebLogic Platform • Contains additional tools to support Server, Portal, Integration • Based on Eclipse • Open source IDE platform with a very active community • Hundreds of available plugins • Workshop is the Eclipse IDE, plus a set of plugins BEA Systems

  44. WLW: Features • Support for multiple web application frameworks in one IDE: Struts, JSF and Beehive • Flexible tools for creating and testing WebLogic web services • ORM mapping support via BEA Kodo and Hibernate • Automatic generation of Spring configuration and DAO classes • Database inspection tools • WebLogic Platform specific tooling • App X-Ray: sophisticated application analysis BEA Systems

  45. WLW: Features BEA Systems

  46. WebLogic Integration BEA Systems

  47. WebLogic Integration • A single environment to build an integrated enterprise application • Business process integration (from business process modeling to integrating enterprise adapters) • Custom application development using robust Web services and controls • Developing an application to provide employees, partners, and customers with an integrated view of applications and data. BEA Systems

  48. WebLogic Integration BEA Systems

  49. WLI: Process Engine • Supports back business process execution • Based on Java Process Definition format • Can be exported as a BPEL process • Can orchestrate a process between Web Services, human input, and native adapters BEA Systems

  50. WLI: Worklist • WLI provides a set of worklist components out of the box for users to manage their processes BEA Systems

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