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Introduction to the BEA WebLogic Platform

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Oracle has made a bid to acquire BEA Systems. Can't be discussed in this venue ... Enterprise Edition specification introduced by Sun in 1999 WebLogic was the ... – PowerPoint PPT presentation

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Title: Introduction to the BEA WebLogic Platform


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

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 BEAs developer website
  • http//dev2dev.bea.com

3
Housekeeping
  • Oracle has made a bid to acquire BEA Systems
  • Cant 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

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

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

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

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

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

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

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

11
WebLogic Server
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

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

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…

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

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

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

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

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

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

21
WLS Database Connectivity
  • WebLogic Server has its roots in Java database
    connectivity

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

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

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

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

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

27
WLS Application Deployment for Devs
  • WebLogic Server supports quick development round
    trips
  • Change-Aware Classloader
  • Replaces the affected modules 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

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

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

30
WLS Virtualization
31
WebLogic Portal
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

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.

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

35
WLP Portal Framework
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 ITs help

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

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

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

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

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

42
Workshop Studio (formerly Workshop for WebLogic)
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

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

45
WLW Features
46
WebLogic Integration
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.

48
WebLogic Integration
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

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

51
WLI Data Transformation
  • Integration of multiple systems usually entails
    data transformation
  • WLI provides sophisticated mapping tools for this
    purpose

52
WLI Adapters
  • WLI provides an Adapter framework
  • Develop custom adapters for back-end systems
  • Use pre-built adapters for popular enterprise
    systems

53
Conclusion
  • WebLogic Platform is a full featured enterprise
    stack
  • Has been shipping for 5 years
  • Mature and high quality
  • Thousands of customers
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