IBM IMPACT 2009 Session 3100 - Dynamic Scripting and Rich Web 2.0 Interfaces with IBM CICS® Transaction Server

#3100
Dynamic Scripting and Rich Web 2.0 Interfaces with IBM CICS®
Transaction Server

Rob Nicholson Senior Technical Staff Member – WebSphere sMash
Fraser Bohm Senior software engineer – CICS Web Service Lead

© 2009 IBM Corporation

Abstract
CICS has been powering the world's transactions for forty years, continually
evolving and adopting new technologies. Many customers see CICS's
adoption of a technology as validation that it's ready at the enterprise level.
Through WebSphere sMash, CICS brings seamless integration of rich Web
2.0 interfaces to your core CICS applications. WebSphere sMash is a new
agile Web application platform for developing and running modern Web 2.0
applications. It can be used to create RESTful Web services and rich AJAX
interfaces using popular Web technologies such as PHP and Groovy. This
session explores the integration of CICS and sMash and the role of dynamic
scripting in the enterprise world. The session will explain and demonstrate the
SupportPac CA1S provides the ability to use PHP scripts in CICS as an option
to service enable your applications in a RESTful style. We will also show how
easy it is to create situational applications using sMash with CICS via the
CICS Transaction Gateway.

2

Agenda
• Web 2.0
• Situational Applications
• WebSphere sMash for CICS
• Demonstrations
• ProjectZero.org

3

Agenda
• Web 2.0
• Demonstrations
• ProjectZero.org

4

Web 2.0 Definitions
• Google:
A perceived ongoing transition of the World Wide Web from a
collection of websites to a full-fledged computing platform serving
web applications to end user. Ultimately Web 2.0 services are
expected to replace desktop computing applications for many
purposes.

• Tim O’Reilly (the person who coined the term):
The business revolution in the computer industry caused by the
move to the Internet as platform, and an attempt to understand the
rules for success on that new platform.

• Tim O’Reilly
A true Web 2.0 application is one that gets better the more people
use it.
5

Web 2.0 – Philosophy – not just
Technology
• An important trend in delivering software applications

• An enabler for richer web applications
– New business models
– Peer-to-peer user participation
– New technologies
– Interactive filtering, presentation, data entry

• A combination of core technology components
– Rich user experience (maps, grids, animation, D&D, etc)
– Loose-coupling, composite applications via reuse and “mash-ups”
– Technologies (SOAP, REST, JSON, ATOM, Java, PHP, Dojo, Ruby, Python, Perl,
etc)

6

Web 2.0 Application Characteristics

• Rich user experience with minimal page transitions
• Dynamic content
• Data asynchronously retrieved
via REST or SOAP service calls
• Client-side validation
• User encouraged to add value
• Simplified user interface
• Integration of relevant data
from multiple sources

7

Web 2.0 for the Enterprise?
It’s fast becoming a Web 2.0
• Web 2.0 is
business world, where innovation
– Creating new markets
never goes out of style.
– Lowering competitive barriers
According to Gartner
– Encouraging creativity to come from anywhere According to Gartner
Missing out on the non-
Missing out on the non-
– Harnessing community created media technology aspects of Web
technology aspects of Web
– Tapping into the wisdom of the crowds 2.0 means that many
2.0 means that many
organizations will also miss
organizations will also miss
– Enhancing communications and making out on some of the positive
out on some of the positive
information more impactful business benefits
business benefits
• What does it means for the enterprise?
– Greater collaboration and innovation across the
value chain
– Increased levels of customer intimacy
– Simplification of complex IT and business
infrastructure
– Business model flexibility to capitalize on new
market opportunities
8

Agenda
• Web 2.0
• Demonstrations
• ProjectZero.org

9

The Application Landscape
Traditional developers
building strategic
applications

Developers building simple
applications and services to
Enterprise
solve simple problems
applications
SCM
Usage

CRM
IT created
applications
ERP
User created applications
Sales analysis Dashboards

Number of Applications
10

Scenario: Simple Supply Chain Integration
Goal: Integration between a manufacturer and a
small supplier. Provide manufacturer with better
view of available inventory; provide supplier with
forecast and order information.

WebSphere sMash used at supplier to more
quickly integrate supplier information with the
manufacturer’s ERP system.

sMash
RTE

Large
Enterprise sMash
ERP Forecast

Forecast
Custom
Orders
ERP
Orders

12

Agenda
• Web 2.0
• Demonstrations
• ProjectZero.org

13

WebSphere sMash
• Speed
Lightweight platform with
– Dynamic scripting languages (PHP and
browser-based
Groovy – with Java as system language)
composition Tools
– Core application constructs: templates, pre-built
services

• Simplicity
– Built-in browser-based composition tools:
Visual tools (for web page construction or
scripting activities into a flow) and scripting tools
(server-side dynamic scripting)
– REST-style architecture – simple ways to
expose and consume services

• Agility
– Simple deployment (application “is” the server)
– Runtime Characteristics (clean, cost effective,
short-lived)
14

Agenda
• Web 2.0
• Demonstrations
• ProjectZero.org

15

Demonstrations

• Build Web 2.0 Interface to existing CICS Assets.
– Quickly.
• Build Situational Apps based on CICS
– Quickly and Cheaply.

Speed
Simplicity
Agility
16

Demonstrations

• sMash with CICS Transaction Gateway.
• sMash with Atom feeds from CICS
• Generating REST resources using
scripting within CICS – PHP SupportPac
CA1S

17

Demonstrations

CA1S

18

sMash with CTG
sMash application

index.html

Browser book.json

book.php
REST

Java Bridge CICS
C
T ECI LIBRARY
Library CTG client
G
JZOS
19

Interacting with CICS Programs
• Build a Java object representation of your
COMMAREA with JZOS
– JZOS is included in the IBM JDK for zOS
• Use the CTG Java Client Libraries
– From Groovy
– From PHP via the Java Bridge

Java Class
for
COMMAREA ADATA COMMAREA
PHP Java
Bridge
COBOL Compiler JZOS ctgclient.jar
Source

20

CICS REST Service in PHP
Import CTG and COMAREA
classes

Send Request to CICS

Process Results

21

What is REST ?
• REST is the acronym for „Representational State Transfer“
– It is the architectural model on which the World Wide Web is based

• Principles of REST
– Resource centric approach
– All relevant resources are addressable via URIs
– Uniform access via HTTP – GET, POST, PUT, DELETE
– Content type negotiation allows retrieving alternative representations from
same URI

• REST style services
– are easy to access from code running in web browsers, any other client or
servers

• More info: http://www.ics.uci.edu/~fielding/pubs/dissertation/top.htm
22

RESTful Resources
HTTP URI Description
RESTful Design
Method
Collection Model
GET /people List members
Action can be taken on the
entire collection or a specified
POST /people Create member
member of the collection
URI and HTTP method define GET /people/1 Retrieve member
the resource request
PUT /people/1 Update member
DELETE /people/1 Delete member
REST and WebSphere sMash
WebSphere sMash supports
URI and HTTP method define the collection resource model
Each script in the <apphome>/app/resources directory represents a resource handler
URL convention for interacting with resources based on
/resources/<collectionName>[/<memberID>[/<pathInfo>]]
where the actions are defined as follows:

Resource GET PUT POST DELETE

Collection list putCollection create deleteCollection

Member retrieve update postMember delete
23

Demonstration

24

Demonstrations

CA1S

25

ATOM support in CICS TS 4.1
http://winmvs2c.hursley.ibm.com/atom/cicsfile/filea

URIMAP
PATH(atom/*) ATOMSERVICE
USAGE(ATOM)
ATOMTYPE(FEED)
STATUS(ENABLED)
RESOURCENAME(FILEA)
RESOURCETYPE(FILE)
BINDFILE
CONFIGFILE

<cics:atomservice type=quot;feed“
XSDBIND file
<cics:feed cics:window=quot;window-sizequot;>
<cics:resource name=“FILEAquot; type=“FILE“/>
...
<atom:feed xmlns:atom=quot;http://www.w3.org/2005/Atomquot;>
....
<atom:content cics:resource=quot;cics-resource-namequot;
cics:type=quot;cics-resource-typequot;/>
</atom:feed>
</cics:atomservice>
26

sMash with CICS Atom feeds
sMash Application

.html

.json CICS
Browser

REST/ Situational Business Logic
ATOM ATOMSERVICE
PHP or Groovy or Flow
ATOM
FILE
TSQ
Program

27

Demonstrations

CA1S

28

CICS PHP: Interfacing with CICS CA1S
supportPac

CICS TS V3
TCPIPSERVICE

CSOL
HTTP
CPIH
CWXN
Requester
Pipeline
URIMAP
RFPHNDLR
matching
HFS URIMAP

pipeline JVM
config PIPELINE

PHP Interpreter
PHP
Scripts
PHP Script

29

PHP in CICS:
Interacting with CICS Programs
• PHP in CICS has a Java Bridge
– Build a Java object representation of your COMMAREA with JZOS
– LINK to your business program using the provided API
– LINK, Syncpoint, and Rollback supported

PHP Script
CICS TS V3
Generate ADATA from compiler (data layout info)
1
3
Generate Java Data object using JZOS Data to
2
COMMAREA
2
1
COBOL JZOS COMMAREA
Compiler ADATA
Source
4
Load
LINK
Set data in COMMAREA object Module
3
5
COBOL
LINK to business logic
4
Program Data from
COMMAREA
Get data from COMMAREA object
5
30

Summary of CA1S Features
• Handle HTTP requests with PHP code
• Call CICS commarea programs from PHP
• Access DB2 databases from PHP
• Manage units of work from PHP (commit/rollback)
• Use event handlers to easily create RESTful Web
Services
• Debug PHP scripts with Eclipse PDT
• Access any Java classes from PHP code using the
PHP/Java Bridge

31

sMash with CA1S
sMash Application

.html

.json CICS
Browser
CA1S
REST/ Situational Business Logic
REST
PHP
PHP or Groovy or Flow
ATOM

LIBRARY

32

Agenda
• Web 2.0
• Introducing WebSphere sMash
• Demonstrations
• ProjectZero.org

33

WebSphere sMash based on IBM’s Project Zero
incubation effort
• Project Zero is the development
WebSphere sMash
and incubation community
– Live on the Internet since June 2007 Based on Project Zero

• Project Zero represents
www.projectzero.org
– The people that build and use
WebSphere sMash Community Site
– The incubation of new technology
– The community of 3rd party assets that
leverage the WebSphere sMash platform

• All released versions are called
WebSphere sMash

34

Resources:
• WebSphere sMash - http://www-01.ibm.com/software/webservers/smash/
– Project Zero - http://projectzero.org

• CA1S – PHP Support Pac
– More info about CA1S: http://tinyurl.com/phpOnCics
– Video of CA1S: http://tinyurl.com/phpOnCicsVideo

• CA8k – Atom Support Pac http://www-
01.ibm.com/support/docview.wss?uid=swg24018619

• JZOS - http://www-
03.ibm.com/servers/eserver/zseries/software/java/products/jzos/overview.html

ATOM - http://rollerweblogger.org/downloads/presentations/TriXML2006-
BeyondBlogging.pdf

REST - http://doc.opengarden.org/REST/REST_for_the_Rest_of_Us

CICS Supportpac CA8K - http://www-
01.ibm.com/support/docview.wss?uid=swg24018619 35

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© IBM Corporation 2009. All Rights Reserved.

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38

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