CICS Business Event Publisher - · PDF fileMQMD (MQCIH) Program Name ... CICS Business Event...

Tony SkinnerTransaction Processing Consultant

IBM Certified System Designer [email protected]

L I G H T Y E A R

BusinessPartner

CICS Business Event Publisher October 2003

CICS

AD Tools

CICS

AD ToolsIntroduction

The majority of IBM's CICS customers are also MQSeries users.

MQSeries is recognized as an invaluable foundation for EAI projects.

The best technical solution for bringing these two products together is by changing the CICS programs to include MQSeries function calls.

But often opening up old CICS applications to add MQSeries calls takes too long, is too expensive, or is too risky to be justified.

As a result, lots of business value in old applications remains dormant.

Are there easier ways to expose legacy application activitiesand use them to drive new business opportunities?

TechTalk CICS Business Event Publisher 8 October 2003

Tony Skinner Lightyear Consulting -2

CICS

AD Tools

Connection

MQSeries-CICS Adapter

MQSeriesCICSAdapter

MQI

Transaction

Program

Call MQPUT...

Queue Manager

CKQC

CKTI

controls

starts

Q'n'Q2

Q1

CICS

AD ToolsMQSeries-CICS Adapter

Three main functions:1. CICS program access to the MQSeries API, the MQI.2. Trigger Monitor transaction CKTI, which can launch CICS.

transactions automatically when messages appear on queues.3. Transaction CKQC, which enables an operator to control

the Trigger Monitors and the connection between the CICS region and an MQSeries Queue Manager.

Using the Adapter, any CICS program can access MQSeries Queue Managers and Queues, and can produce and consume messages.

The CICS programs must include MQI function calls; they can be new programs, or old ones that have been changed.


Tony Skinner Lightyear Consulting Page 3-4

CICS

AD ToolsMQSeries-CICS Bridge - 1

CICS TS

DPL Bridge

Existing, unchanged CICS Program:::EXEC CICS RETURN...

Any program

Call MQPUT...

Any platform

RequestQ

ReplyQ

1. Call MQGET...2. EXEC CICS LINK...

3. Call MQPUT...

MQMD Program Name COMMAREA(MQCIH)Message format:

CICS

AD ToolsDPL Program

Map between MQ Request/Reply and CICS Distributed Program LINK

Accept properly formatted MQSeries Request messages

Automatically run a CICS program named in the message

Pass data from Request message in input COMMAREA

Return output COMMAREA data in Reply message

Multiple programs can be run within a single logical unit-of-work

Existing CICS programs can run unchanged



CICS

AD ToolsMQSeries-CICS Bridge - 2

CICS TS

3270 Bridge

Existing, unchangedCICS BMS transaction:EXEC CICS RECEIVE...::EXEC CICS SEND...:

Any program

Call MQPUT...

Any platform

RequestQ

ReplyQ

1. Call MQGET Browse...2. EXEC CICS START...

3. Call MQPUT...

MQMD BRMQ data elements corresponding to ADSMQCIHMessage format:

CICS

AD Tools3270 Transaction

Map between MQ Request/Reply and CICS 3270/BMS Transaction

Accept properly formatted MQSeries Request messages

Automatically run a non-conversational, pseudo-conversational, or conversational CICS transaction named in the MQCIH header

Intercept CICS BMS and Terminal Control input commands,and pass Request message data as Application Data Structure

Intercept CICS BMS and Terminal Control output commands,and return ADS response data in Reply message

Transactions can comprise multiple logical units-of-work

Existing CICS transactions can run unchanged



CICS

AD ToolsCICS Business Event Publisher

Existing, unchangedCICS applications



CICS TS

Any program

Call MQGET...

Any platform

MQMD data elements associated with monitored event (CBEP hdr)

Q'n'Q2

Q1

Message format:




CICS TS

CICS Business EventPublisher

monitors

CICS

AD Tools

Existing CICS applications can run unchanged

What is CBEP?

Enable existing CICS applications to generate MQSeries messages

Define rules that identify significant application events

Automatically monitor internal application functions

On specified events, create message(s) containing relevant data

Deliver the message(s) to appropriate queue(s)

Include data integrity, and workload balancing and scalability options, and application development and system administration support



CICS

AD Tools

z/OSUnix

SAP/R3Purchasing & Warehouse

Management

SiebelCustomer Relation

Management

CICS LegacyOrder Entry

&Inventory Control

Overnight batch database scan

and FTP

Windows

file tr

ansfer

file transfer

3270

VSAM

DB2

Oracle

Example

CICS

AD ToolsRequirement

Given a legacy CICS order and inventory management application, new SAP/R3 Warehousing & Purchasing applications and Siebel CRM

Notify sales representatives

When each new order worth >$n,nnn is booked

When an existing order is changed or canceled

Notify buyers:

When on-hand balance of an inventory item is reduced to 0

and do it in real time!



CICS

AD ToolsWhere do we start with CBEP?

1. Install and configure the software, and start the CBEP system

2. Define some Rules based on activities and data in the CICS programs

3. Specify content, layout, and destinations for the resulting messages

4. Include the Rules in a Rule Group

5. Add the Rule Group to a Group List

6. Activate the Group List in CBEP

7. Wait for the messages to pop out...

CICS

AD ToolsCreate a Rule

Rules

Rule Groups



CICS

AD ToolsSelect Rule Type

CICS

AD ToolsSpecify Selection Criteria



CICS

AD ToolsAdvanced Selection Criteria...

CICS

AD Tools...Advanced Selection Criteria...



CICS

AD Tools...Advanced Selection Criteria

CICS

AD ToolsSpecify Destination Queue

MQPMO

MQMD

QueueName

(Queue ManagerName)



CICS

AD ToolsSet Message Descriptor (MQMD)

CICS

AD ToolsSet Put Message Options (MQPMO)



CICS

AD ToolsSpecify Message Layout & Delivery

≤128 data elements

for example:File or TS record

for example:cancel event oroverride layout

CICS

AD ToolsSet Return Options

throughputvs. integrity

error handling



CICS

AD ToolsCreate a Group List

Group Lists

CICS

AD ToolsRetrieve Group names

Groups fromhost system

Local groupson workstation



CICS

AD ToolsPopulate Group List

Add toGroup List

CICS

AD Tools

z/OSUnix

SAP/R3Purchasing & Warehouse

Management

SiebelCustomer Relation

Management

CICS LegacyOrder Entry

&Inventory Control

Windows

3270

VSAM

DB2

Oracle

Solution

QStock-out

QHi-value

mon

itors

CICSBusiness

EvenPublisher



CICS

AD ToolsArchitecture

Q'n'Q2

Q1

CBEPGLUEs/TRUEs

CICS TS

CICS Business Event Publisher MQSeries

CBEPcommandprocessor

3270z/OSconsole

Windows 2K or XP

Message Server

RULEFILE

Data Space ServerCICSDataSpace

Rules DBDataSpace

SecureAdministration

Client

CBMPARMS

DATAMAPS

TSOISPF

z/OS

CICS

AD ToolsCBEP Components

Data Space Server at least 1 per z/OS instance(each can support multiple Message Servers)

Message Server 1 or more per z/OS instance(connects to one Data Space Server)

Main task & console operator interfaceSet subtasks 1 or more per Event SourceQtasks 1 or more per Set taskQMGr tasks 1 per connected local QMgr

CICS Event Source Connector(connects to one Message Server and its Data Space Server)

Command ProcessorGLUEsEvent Processor

Rules Database RULEFILE & DATAMAPS can be shared by Message ServersWorkstation Administration Client & ListenerISPF-based COBOL copybook conversion utility



CICS

AD ToolsSummary

CICS Business Event Publisher makes it quick and easy for you to extract value from existing CICS applications by:

automatically notifying other applications about significant business activities

integrating them with other applications, without changing them

feeding relevant, real-time data to your message broker

And it does so with comprehensive application development, system management, administration, and supporting functions, in a high-integrity, scale-able, and secure environment.

CICS

AD Tools

CICS Services available from: Lightyear Consulting Ltd.Classic:

Tools analysisOn-site education Installation servicesMigration servicesTuning services

Modern:Integration with MQ and/or WebSphere servicesJava development skillsEAB/CICS wrappering skillsCobol/CICS to Java rewrite skillsCICS web enablement optionse-business profiling servicesCICS + Java Quick Start Workshop

IBM Software Sales:CICS Tools (OTC SW - New IBM Business Partner Program)Financing (i.e. turn OTC into MLC)

Palo Alto - Calgary - Laguna Beach - Scottsdale - Austin512-329-9081www.lightyr.com

BusinessPartner

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CICS Business Event Publisher - · PDF fileMQMD (MQCIH) Program Name ... CICS Business Event...

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