eagle.3

Presentation summary

1. What is EAGLE?2. A little history3. What EAGLE does now4. A simple EAGLE page5. The future of EAGLE6. Discussion7. Conclusion

EAGLE

What is eagle?

EAGLE is a set of CICS programs that provides a TCP-enabled application, development, control, and communications environment.

EAGLE

What is eagle?

IBM’s CICS* is the world’s most reliable, robust, and speedy customer information system.

EAGLE

What is eagle?

However, CICS is primarily a mainframe application and has inherited some communications interface issues:

EAGLE

What is eagle?

• It was never designed to talk via any interface except SNA.

EAGLE

What is eagle?

• It was never designed to talk via any interface except SNA.• Data access was often tightly linked to display logic.

EAGLE

What is eagle?

In short, while CICS provides fast, robust access to data, this access has been restricted by a simplistic, antiquated interface.

EAGLE

A little history

To understand what EAGLE does, it would be helpful to understand the problems it was originally created to solve.

EAGLE

A little history

Once upon a time in the swamplands of North Florida…

EAGLE

A little history


EAGLE

UF is the state's oldest, largest and most comprehensive university. With more than 46,500 students, UF is among the five largest universities in the nation.

A little history


EAGLE

In the middle 1990s, the popularity of the World Wide Web made the Web browser an ideal method for students to access their registration functions and information.

A little history


EAGLE

However, access methods had not kept pace with the exponential growth of the Internet. The only practical way to provide Web interaction with CICS data at this time was via “screen-scraping”.

A little historyEAGLE

SNASNA

3270(“Dumb Terminal”)

OS/390

A little historyEAGLE

TCP client(WWW, e.g)

OS/390

AgentAgentSoftwareSoftware

(Middleware)(Middleware)

Web Web serverserver

TCTCPP

NT or UNIX or OS/2

SNASNA

TCTCPP

A little history


EAGLE

At great expense, UF installed one of these “screen-scraping” systems to provide students with a Web interface to UF’s legacy CICS resources.

It was… less than successful. However, the lessons learned in the process of implementation proved invaluable in developing EAGLE later on.

A little history


EAGLE

The first public iteration of EAGLE delivered student’s grades in the spring of 1998.

Soon after that initial success, nearly all student registration functions were Web-enabled as EAGLE-powered applications.

What eagle does now

EAGLE method

EAGLE

TCP client(WWW, e.g)

OS/390

Web Web serverserver

(more)(more)

EAGLE

CICSTCTCPP

TCTCPP

What eagle does now

EAGLE method

EAGLE

OS/390

• Fast– uses much fewer resources than screen-scraping

• Flexible– extends functionality into any TCP-enabled architecture

(more)(more)

EAGLE

CICS

What eagle does now

EAGLE method

EAGLE

OS/390

• Stable– billions of pages have been delivered in production applications

• Secure– uses existing authentication / authorization

(more)(more)

EAGLE

CICS

What eagle does now

EAGLE method

EAGLE

OS/390

• Powerful– intuitive Web GUI helps cut development time

• Scalable– architecture allows increase in system power without creating “server farms”

(more)(more)

EAGLE

CICS

What eagle does nowEAGLE

EAGLE includes powerful application development tools:


EAGLE includes powerful application development tools:• EAGLE Server Pages (ESP), a mainframe-side database access engine



• Built-in HTML generator




• Server-side processing language (EMU)




• Server-side processing language (EMU)

• Other tools: diagnostics, development, et c.

What eagle does now

EAGLE currently has four main production implementations:

EAGLE

What eagle does now


EAGLE

• ISIS (Registrar)

• Student Financial Affairs

• Reitz Union

• Fine Arts

• Document Imaging

What eagle does now


EAGLE

• Alumni site

• Housing

• Portal interface

What eagle does now


EAGLE

• FACTS Central Site (communications)

• Transcripts

• Audits

• Degree Shopping

• Admissions Application

What eagle does now


EAGLE

• Roles-based access control

• Global session manager

• Calendaring

• Portal

[more]

• User reports formatting and display

• Referring Physicians

• Mobile access

• Tutorial generator

• Secure messaging

What eagle does now


EAGLE

A simple EAGLE page

How do I create a page in EAGLE?

EAGLE

A simple EAGLE page


The core object in EAGLE is the Page Definition.

EAGLE

A simple EAGLE page


The Page Definition defines the name of the page where dynamic data (if any) lives what programs (if any) are invoked

EAGLE

A simple EAGLE page


When you create an Page Definition, you have created an EAGLE page… but there is nothing on it!

EAGLE

A simple EAGLE page


Text is placed on an EAGLE page in one of two ways:

EAGLE

A simple EAGLE page


Text is placed on an EAGLE page in one of two ways:Static data is placed on the Layout page…

EAGLE

A simple EAGLE page


Text is placed on an EAGLE page in one of two ways:…dynamic data placement is specified with an anchor.

EAGLE

EAGLE

Y

Y

N

A simple EAGLE page

How do I create a page in EAGLE?You specify data access type in this field on the Page Definition.

EAGLE

A simple EAGLE pageEAGLE


A simple EAGLE page

An EAGLE example

For a simple Web page, start with the Page Definition object.

EAGLE

Skip to ESP

Live Demo

http://test.eagle.ufl.edu/cgi-bin/eaglee?MDASTRAN=EAG-START

A simple EAGLE pageEAGLE

A simple EAGLE page

An EAGLE example

EAGLE

Set the Data Access field to “Not EAGLE” as shown. This tells EAGLE that this page will not be accessing dynamic CICS data.

A simple EAGLE page

An EAGLE example

EAGLE

A simple EAGLE page

An EAGLE example

Next, create a Page Layout object with the same name…

EAGLE

A simple EAGLE page

An EAGLE example

EAGLE

A simple EAGLE page

An EAGLE example

…and add some text to it.

EAGLE

A simple EAGLE page

An EAGLE example

EAGLE

A simple EAGLE page

An EAGLE example

EAGLE

To see the results of your code, click Run.

A simple EAGLE page

An EAGLE example

EAGLE

A simple EAGLE page

An EAGLE example

For more impact, add HTML to your Page Layout.

EAGLE

A simple EAGLE page

An EAGLE example

EAGLE

A simple EAGLE page

An ESP example

EAGLE

EAGLE Server Pages (ESPs) allow you to easily place and format query results on an EAGLE page.

A simple EAGLE page

An ESP example

EAGLE

To make a page that uses the ESP engine, first create an ESP Layout object…