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© 2015 IBM Corporation

Liberty, Equality, Fraternity

Fraser BohmCICS TS Chief Architect

Notices and DisclaimersCopyright © 2015 by International Business Machines Corporation (IBM). No part of this document may be reproduced or transmitted in any form without written permission from IBM.

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Agenda

• WebSphere Liberty Profile Server in CICS TS

• Developer Experience

• Feature Update – CICS TS 5.2

• A Tour of the Liberty Support in the CICS TS 5.3 Open Beta

4

WebSphere Liberty Profile Server in CICS TS

6

Liberty is...

A LIGHTWEIGHT

COMPOSABLE

FAST

…'Profile' of WebSphere Application Server

7

JVM Server Architecture

CICS TS V4JVMLE enclave

CICSTask PThread

JVMthread

CICSTask PThread

JVMthread

CICSTask PThread

JVMthread

Can attach multiple pthreads/CICS tasks to the JVM at the same time

Therefore serve more requests using a single JVM

Result is increased tasks per region – up to 256 programs simultaneously on T8 TCBs

For 3rd party JVM technology (CICS TS V4.1)and user programs (CICS TS V4.2)

Heap &Classes

An alternative to pooled JVMs, not a replacement (yet)

JCICSAPI

JVMthreadJVM

threadJVM

threadJVM

thread

9 © 2012 IBM Corporation

Configuration by Exception

This is the entire configuration needed to run Liberty as a Web-container with Servlet support.

Composability – Based on features

ConvergenceOf features, fix packs and timing

12 © 2012 IBM Corporation

What is a Hybrid Application anyway and why would I want one?

Liberty in CICS – a Hybrid RuntimeWhat do you see, CICS or

Liberty?

...It's all a matter of perspective

14 © 2012 IBM Corporation

Each 'Invocation' (think Servlet Request) on a Hybrid Thread is also a CICS Transaction (Has a Tranid, Task Context etc).

This gives you–A single common Transaction (UOW) and CICS Managed JDBC

• Which can cross between Java and Cobol–Full JCICS API Access

• In particular, LINK and access to VSAM–WLM (CICS WLM, Performance Classes etc).–Monitoring / Statistics–CICS Transaction Tracking / Association Data

Benefits of Hybrid Threads

Developer Experience

CICS TS 5.2 Liberty Feature Update

What's supported in the CICS TS Liberty Profile?

• Subset of the the WAS for z/OS Liberty profile • Additional CICS specific integration features

• Only configure the functions you use

CICS TS V5.2

• Web/servlet/RESTful technology

• Integration with CICS security & transactions• Local and remote JDBC, JEE security & SAF

integration• Java web services (jaxws)• z/OS Connect integration (APAR)

• JEE6 Web profile• EJBLite, CDI & Managed beans• MongoDB, JMX

CICS TS V5.1

CICS TS 5.3 Open Beta support

CICS TS 5.3 Open Beta support● New API features (EJB…..)

● EAR deployment

● LINK to Liberty - Prototype

● JCA feature support

● Simplified JVM server administration– JVM server zFS log file management– Redirection of zFS logs to JES– Unified time stamps in log files– Common zFS structure for zFS log/trace files

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Summary

21 © 2012 IBM Corporation

Summary of Key Benefits

Local. Lightweight. Fast. Web Applications run locally in CICS with direct access to CICS data and resources. No adapters, no converters, same address space.

Standard tools for developers. Familiar, industry standard tools with Eclipse and Dynamic Web Projects. CICS Explorer SDK enhances the deployment experience.

Portable. Presentation logic in Servlets, business logic in OSGi bundles. Servlets are portable across runtimes. Bundles provide componentization.

Modular design. Architected in a modular way using OSGi, the server only enables and starts the features required by the applications and configuration. If you're not using a feature, it won't start in your server runtime

Dynamic runtime. Features can be added to the server dynamically, using the OSGi framework, while the server is running, with zero downtime and server restarts. Similarly server and application config can be updated without the need to restart.

Eclipse based tools. The eclipse tools for the Liberty Profile are small and very well integrated with the Liberty Profile environment

Thank You

Your Feedback is Important!

Access the InterConnect 2015 Conference CONNECT Attendee Portal to complete your session surveys from your smartphone,

laptop or conference kiosk.

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1) Create a JVM server resource in Explorer, CEDA, or CPSM.

24 © 2012 IBM Corporation

2) Configure the JVMProfile

- Copy the sample DFHWLP

- Check JAVA_HOME is correct.

- Ensure Auto Configure option is set to true for first time

- Point your JVM server definition at the new JVMProfile

25 © 2012 IBM Corporation

3) Enable the JVM server

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4) Liberty is running! (check the logs).

Server defaultServer created.

Launching defaultServer (wlp-1.0.0.20120428-1251/websphere-kernel_1.0.0) on IBM J9 VM, version pmz6470sr1-20120302_01 (SR1) (en_US)

[AUDIT ] CWWKE0001I: The server defaultServer has been launched.

[AUDIT ] CWWKG0028A: Processing included configuration resource: file:/u/ivanh/IYK3ZIH1/LIBERTY1/wlp/usr/servers/defaultServer/installedApps.xml

[AUDIT ] CWWKG0028A: Processing included configuration resource: file:/u/ivanh/IYK3ZIH1/LIBERTY1/wlp/usr/servers/defaultServer/cicsSecurity.xml

[AUDIT ] CWWKZ0058I: Monitoring dropins for applications.

[AUDIT ] CWWKF0011I: The server defaultServer is ready to run a smarter planet.

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5) Install Eclipse 3.6.2 - preferably JEE version, but Classic will suffice.

http://www.eclipse.org/downloads/packages/release/helios/sr2

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6) Install IBM CICS SDK for WebSphere Application Server Liberty profile v5.1

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7) Create a Dynamic Web Project, or choose one of the Examples

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8) Export the CICS bundle project

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9) Pick a zFS location for the CICS bundle project

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10) Create a CICS bundle definition to control the life-cycle of the Application

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11) Install the CICS bundle definition

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12) Run the application!

[AUDIT ] CWWKT0016I: Web application available (default_host): http://winmvs2c.hursley.ibm.com:27245/com.ibm.cics.server.example.wlp.tsq.web/

35 © 2012 IBM Corporation

zFS

zOS

App

App

App

CICS

Liberty

JVM server

Deploy

Eclipse with Liberty Tools

Use

CICSResources

En

able

Putting it all together


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