SOA5: Accessing the Application Server from Anywhere and Everywhere

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SOA-5 Accessing the Application Server from
Anywhere and Everywhere
David Lund
Sr. Training Program Manager
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Accessing the Application Server from Anywhere
and Everywhere
Session Goals

• Present the value of centralizing business logic
  in one place
• Review the gamut of AppServer clients
• Understand when to use each client

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Agenda
Accessing the AppServer from Anywhere and
Everywhere

• Business Logic Central
• A Little History
• AppServer Clients

This presentation use the abbreviation ABL for
OpenEdge Advanced Business Logic (formerly known
as OpenEdge 4GL)
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Common Business Logic
AppServer is a fundamental component of SOBA

• AppServer Center of the business logic universe
• Ways to access business logic
• OpenEdge Clients (GUI, TTY, Batch)
• WebClient
• WebSpeed Clients
• Microsoft .NET Open Clients
• Java Open Clients
• Web Service Clients
• OpenEdge Adapter for SonicMQ and Sonic ESB

Clients may include either a user interface or a
service interface
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OpenEdge Reference Architecture
Presentation
Enterprise Services
Business Services
Common Infrastructure
Data Access
Data Sources
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OpenEdge Reference Architecture
OpenEdge, WebClient, WebSpeed, .NET
Web services, Sonic, Java Open Client
OpenEdge Application Server
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OpenEdge Reference Architecture
OpenEdge, WebClient, WebSpeed, .NET
Web services, Sonic, Java Open Client
OpenEdge, WebClient, WebSpeed, .NET Java Open
Clients, Web services, Sonic
OpenEdge Application Server
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Best of Bread Business Applications
Why so many client choices?

• OpenEdge provides an open environment where you
  can choose what you need to be successful
• Client options are one example of the flexibility
  that OpenEdge offers
• Choose the client(s) you need to serve your
  customers
• Clients can be added as needed

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A note about security
Encrypted Channels
Lift Tours 276 North Drive...
FOR EACH customer DISPLAY customer. END.

OpenEdge Application Server
CONNECT db dbname S dbservice
Client SSL Enabled
...0wv. ..q...w.... ...L........
FOR EACH customer DISPLAY customer. END.
OpenEdge Application Server SSL Enabled
CONNECT db dbname S dbservice -ssl
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SSL Encrypted Channels
WebSpeed Broker
Web Server
WebSpeed Messenger
Web Browser
NameServer
WebSpeed Agents
WebClient
.NET/Java Open Client
3rd Party Database
OpenEdge DataServers
AppServer Internet Adapter
Java Servlet Engine
AppServer Broker
Web Services Adapter
OpenEdge Database
Web Services
ABL Client
3rd Party Web Service
Sockets
OpenEdge Adapter for Sonic ESB
OpenEdge 10.0B and beyond
Sonic ESB
OpenEdge Adapter for SonicMQ
SonicMQ
3rd Party Products
OpenEdge SQL Client
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SSL Encrypted Channels
WebSpeed Broker
Web Server
WebSpeed Messenger
Web Browser
NameServer
WebSpeed Agents
WebClient
.NET/Java Open Client
3rd Party Database
OpenEdge DataServers
AppServer Internet Adapter
Java Servlet Engine
AppServer Broker
Web Services Adapter
OpenEdge Database
Web Services
ABL Client
3rd Party Web Service
Sockets
OpenEdge Adapter for Sonic ESB
OpenEdge 10.0B and beyond
Sonic ESB
OpenEdge Adapter for SonicMQ
SonicMQ
3rd Party Products
OpenEdge SQL Client
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Agenda
Accessing the AppServer from Anywhere and
Everywhere

• Business Logic Central
• A Little History
• AppServer Clients

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Non-AppServer Architecture
Client/Server
Across a network
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Using an Application Server
Distributed (N-Tier) Applications
Optimize based on resources Options
Multiple database servers Multiple
AppServers Number of machines (Tiers)
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Distributed (N-Tier) Applications

• Advantages
• Expanded options in processing distribution
• Greater scalability than Client/Server
• Reusability of business logic
• Considerations
• Client side application distribution
• Network performance

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Agenda
Accessing the AppServer from Anywhere and
Everywhere

• Business Logic Central
• A Little History
• AppServer Clients

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OpenEdge Application Server Clients
Accessing the AppServer from Anywhere and
Everywhere
Web Service
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AppServer Clients
Accessing the AppServer from Anywhere and
Everywhere

• OpenEdge
• WebClient
• WebSpeed
• Open Clients
• Microsoft .NET
• Java
• Web Service
• Sonic

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OpenEdge Clients
Use for high performance networking and ease of
development

• Considerations
• Fast flexible interface
• Leverage existing ABL UI code
• One language on both client and server
• Development all done in ABL

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OpenEdge Clients
The YES company (Your Entertainment Source)

• Starting to build a business
• New home grown application
• TTY
• Suppliers not automated, heads down entry
• Client/Sever
• Implement at POS and in office
• All BL now on central server
• Using OpenEdge AppServer

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Demonstration

• Client
• OpenEdge client

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AppServer Clients
Accessing the AppServer from Anywhere and
Everywhere

• OpenEdge
• WebClient
• WebSpeed
• Open Clients
• Microsoft .NET
• Java
• Web Service
• Sonic

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WebClient
Use for ease of deployment with a rich client
interface

• Considerations
• Full GUI experience
• Leverages existing application logic
• Automated application distribution and updates
• No manual tasks required for client
• Smaller footprint of executable
• Uses less disk space, less to send over wire
• Client does not directly connect to database
• All database access is done via AppServer

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WebClient
WebClient Architecture

• Same GUI can be used as used for Client/Server
• IntelliStream used to automate client update
  tasks
• AppServer Internet Adapter Java Servlet
• Interface between Web server and AppServer

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WebClient
WebClient Architecture

• Same GUI can be used as used for Client/Server
• IntelliStream used to automate client update
  tasks
• AppServer Internet Adapter Java Servlet
• Interface between Web server and AppServer

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WebClient
The YES company

• YES more than doubles in size by acquiring two
  other entertainment chains located in other metro
  areas
• Problem - not enough technical staff or budget
  for YES IT group to physically cover all of the
  stores
• Solution maintain the code in home office and
  automate deployment to stores, saving time and
  resources

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Demonstration

• Client
• WebClient

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AppServer Clients
Accessing the AppServer from Anywhere and
Everywhere

• OpenEdge
• WebClient
• WebSpeed
• Open Clients
• Microsoft .NET
• Java
• Web Service
• Sonic

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WebSpeed
Runs on any platform and no installation
requirements

• Considerations
• Require minimal client installation
• Require minimal application deployment
• Access via the internet/intranet (browser)
• Doesnt require traditional GUI interface
• Does require skills for browser development
• Does not provide full functionality rich GUI
  environment

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WebSpeed
Browser client accessing over the internet

• HTML and some client-side scripting development
• Client installation requires only a browser
• Client application code is stored on the Web
  server

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WebSpeed
The YES company

• Expand the reach of the business beyond brick and
  mortar
• Allow customers to rent/sell of merchandise
  on-line
• Expose customer rental/sale portion of
  application to the Web

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Demonstration

• Client
• WebSpeed

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AppServer Clients
Accessing the AppServer from Anywhere and
Everywhere

• OpenEdge
• WebClient
• WebSpeed
• Open Clients
• Microsoft .NET
• Java
• Web Service
• Sonic

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Open Clients
Business logic
r-code
Generating Interfaces
ProxyGen
Proxies/ Interface
Web Services Mapping File
Java classes
.NET assembly
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Open Clients
Use for popular interfaces utilizing tightly
coupled performance

• Considerations
• Customer requires specific interface
• Better performance compared to Web services for
  the same client

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AppServer Clients
Accessing the AppServer from Anywhere and
Everywhere

• OpenEdge
• WebClient
• WebSpeed
• Open Clients
• Microsoft .NET
• Java
• Web Service
• Sonic

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.NET Open Client
The YES company

• YES has been very successful at reselling their
  application
• Expanded opportunities are available if they have
  an .NET UI for their application
• Problem They don have the skills or the time
  to develop the new UI with current staffing
• Solution Outsource the UI development and focus
  on core competency, business logic
• .NET Open Client provides native .NET assemblies
  for .NET developers

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AppServer Clients
Accessing the AppServer from Anywhere and
Everywhere

• OpenEdge
• WebClient
• WebSpeed
• Open Clients
• Microsoft .NET
• Java
• Web Service
• Sonic

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Java Open Client
The YES company

• YES has merged with another company that has a
  complementary business
• Plan
• YES will maintain their own business
• Leverage by providing interface from YES business
  logic to Java based application
• Solution
• Use Java Open Client to allow the Java
  application to efficiently interface with the
  OpenEdge AppServer based BL

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Demonstration

• Client
• Open Clients

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AppServer Clients
Accessing the AppServer from Anywhere and
Everywhere

• OpenEdge
• WebClient
• WebSpeed
• Open Clients
• Microsoft .NET
• Java
• Web Service
• Sonic

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Web Service Clients
Use for standards based interfaces that are
loosely coupled

• Considerations
• Use agreed on standards to connect dissimilar
  and/or unrelated applications
• Requires (at a minimum) basic understanding of
  standards to be used
• Requires 3rd party products
• Web server and Java Servlet Engine

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Web Service Clients
Web services

• Any client that follows Web service standards for
  SOAP, WSDL, and XML Schema is supported
• Includes OpenEdge, .NET, and Java clients
• Web service is deployed using Progress Explorer

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Web Service Clients
The YES company

• Yes has moved into bulk sales to other retailers
  and wholesales
• Problem - They dont know what systems and
  languages are used by each customer
• There is no way to support them all without some
  commonality to the interface
• Solution agree on common standards (WSDL, SOAP,
  ) and use Web services to sent and receive data

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Demonstration

• Client
• Web service client

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AppServer Clients
Accessing the AppServer from Anywhere and
Everywhere

• OpenEdge
• WebClient
• WebSpeed
• Open Clients
• Microsoft .NET
• Java
• Web Service
• Sonic

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SonicMQ APIs
Use for standards based interfaces with full
featured support

• SonicMQ messaging backbone provides
• Participation in standards based JMS messaging
• Continuous availability
• Guaranteed message delivery

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Sonic ESB OpenEdge Service
Use for standards based interfaces with full
featured support

• Sonic ESB enables your business to implement an
  enterprise-class SOA that
• Connects, mediates and controls services,
  wherever they are deployed
• Eliminates hard-wired service dependencies
• Is fast, dependable, and secure communications
• Includes transactional failover of service
  interactions
• Uses reliable and secure Web services, with
  synchronous and asynchronous interaction
• Operates across domains, physical networks and
  corporate boundaries

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Sonic ESB OpenEdge Service
Use for standards based interfaces with full
featured support
OpenEdge Sonic support

• OpenEdge is a fully supported service for both
  SonicMQ and Sonic ESB
• OpenEdge AppServer can be implemented as
  available services on a communications bus

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Sonic Clients
The YES company

• Problem - Overstock in the warehouse is tying up
  too much capitol that could be used more
  productively elsewhere
• Need to reduce the stock and work with
  just-in-time delivery, but concerned that orders
  will be lost causing shortages
• Solution Add a Sonic client for crucial
  deliveries to assure that messages are not lost

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In Summary

• Centralize business logic on AppServer
• Accessible from anywhere and everywhere
• AppServer Clients
• OpenEdge, WebClient, WebSpeed, .NET, Java, Web
  Services, Sonic

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Relevant Exchange Sessions

• DEV-5 An Introduction to WebSpeed
• DEV -7 Ease Your Deployment Woes with OpenEdge
  WebClient - It's not Magic!
• DEV-11 Leveraging ProDataSets in an Open
  Environment (Open Clients)
• MOVE-8 Separating Interface from Logic
  (OpenEdge)
• SOA-12 Integrate over the Web with OpenEdge Web
  Services
• SOA-13 Advanced AppServer Topics

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Relevant Exchange Sessions

• SOA-2 OpenEdge 10.1A Adapters for SonicMQ - New
  Install, New Architecture and New APIs
• SOA-3 Getting the Message So You Need to
  Integrate, But What do You Need to Know and Do?
  (Sonic)
• SOA-7 Designing Sonic ESB Services and Processes
  for the OpenEdge Developer
• SOA-14 Deploying Your SOA Application (Sonic)

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Education / Documentation References

• Courses
• Whats new in 10.1A SOA Support
• Consuming Web Services from OpenEdge
• Opening 4GL Applications to Web Services Clients
• Opening 4GL Applications to .NET Clients
• Distributed AppServer Application Development

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Questions?
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Thank you foryour time
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