Web Services Development using RAD v7.0

Audience
Java developers, web page designers and other professionals thatwill be developing Web Services using Rational Application Developer v7.0.
   

Duration

 4 Days
   
Course Abstract
This course will integrate a combination of instructor-led discussions and interactive workshops to demonstrate the capabilities of Web Service within ecommerce applications. This seminar will illustrate the building, testing and deployment of Web Services, explore their fundamental capabilities, utilization of SOAP and XML, role of WSDL (Web Services Descriptive Language), use of UDDI registries and the development of JavaBeans and EJBs as Web Services.
   
Objectives

Upon conclusion participants will have acquired these skills:

  • Understand the architecture of Service Oriented Architecture
  • Explain the roles of SOAP and XML
  • Demonstrate the conversion of JavaBeans and EJBs to function as Web Services
  • Illustrate the use of Web Services Descriptive Language (WSDL)
  • Depict the SOAP processing architecture: messages and bindings
  • Understand the architecture of Apache Axis
  • Develop Web Service from a JavaBean using RAD v7.0
  • Depict process of serialization in SOAP and compare to J2EE equivalent
  • Demonstrate the development of Web Service client applications
  • Test Web Services application using RAD v7.0
  • Depict the UDDI registry model architecture
  • Illustrate WebSphere Web Services Gateway architecture
  • Illustrate the deployment of Web Services to the WebSphere Application Server environment
   
Class Format Lecture and Lab
   
Prerequisites

Each student should have a basic knowledge of RAD v7.0 and have been exposed to the Java programming language.
Course Topics

The following list represents the sections and topics discussed in this virtual instructor-led course offering.
 

Web Services Overview

  • Service Oriented Architecture
    o UDDI Registries
    o Service Requestor
    o Web Service
  • B2C vs B2B
  • Defining XML
  • SOAP
    o Architecture
    o Messages
  • Web Services Descriptive Language
    o Definition
    o Usage

Web Services Implementation

  • Components
    o SOAP
    o XML
    o UDDI
    o WSDL
  • J2EE Integration
  • ECommerce usage
    o Hosted
    o Published
    o Discovery
    o Usage
  • RAD Development

Introduction to SOAP

  • Overview
  • SOAP Messages
    o Envelope
    o Header
    o Body
  • SOAP transport protocols
    o HTTP
    o FTP
    o SNMP
  • Error processing
  • Attachments
  • Bindings

Illustrating Apache Axis

  • Overview of Axis
  • Axis architecture
    o Handlers and message paths
    o Server message path
    o Client message path
  • Message Flow subsystem
    o Handlers and chains
    o Message Contexts
    o Engine
  • Message Models
    o SOAP Model
    o Message elements
    o Deserialization
  • Encoding

RAD Web Services Development

  • RAD Tool support
  • Web Services wizard
    o Deployment settings
    o Java to XML mappings
    o Binding Proxy generation
    o XML to Java mappings
    o SOAP Binding Mapping configuration
  • Generated files
    o Client
    o Proxy
  • Deployment
    o Testing/Debugging
    o Publishing
  • Tracing SOAP Messages

Web Services Descriptive Language

  • Illustrate role of WSDL
  • Components
    o Types
    o Porttypes
    o Binding
    o Service
  • Attachment support
  • WSDL and the client
  • Creation via RAD (Top/Down)

Building Web Services Clients

  • Depict client requirements
  • Construct Web Service client using Apache SOAP
  • RADClient development
    o Use of WSDL
    o Wizards
    o Source
  • Depict functions of a Web Service proxy

J2EE Packaging and Deployment

  • J2EE Application packaging
  • Packaging WAR files
  • Class loading policies
  • Enterprise application installation
  • Deployment Descriptors
    o web.xml
    o ejb-jar.xml
    o application.xml
  • Enterprise Application (EAR) deployment
  • Web Service requirements
    o Runtime files
    o Application Server impact
    o Java client requirements

Building Web Services Clients

  • Web Service from URL
    o Servlet Overview
    o Create URL Web Service
    o Generated files
    o Testing
  • Web Service from EJB
    o Session vs Entity EJBs
    o Session EJBs
    • Stateless
  • Stateful
    o EJB Lifecycles
    o Web Service from EJB
  • RAD tools
  • Files created

Overview of UDDI Registries

  • Static vs dynamic Web Services
  • Web Services discovery
    o Global
    o Private
    o Business Partners
  • UDDI Versions
  • UDDI Models
    o White
    o Yellow
    o Green
  • Use of tModels
  • UDDI Data Models
  • WSDL and UDDI
    o Illustration
    o Associate WSDL with Web Service
    o Locate Web Services for WSDL document

WebSphere Application Server v6.1 Deployment

  • Web Services Gateway
    o Service Mapping
    o Transformation
    o UDDI Publication and Lookup
    o Security
  • Handling inbound requests
  • Handling outbound requests
  • Protocol transformation
  • Non-SOAP services access
  • Deployment
    o J2EE Packaging
    o Use of EAR files