2829 liberty

© 2015 IBM Corporation
Liberty, Equality, Fraternity
Fraser Bohm
CICS TS Chief Architect

Notices and Disclaimers
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IBM patents, copyrights, trademarks or other intellectual property right.
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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 V4
JVM
LE enclave
CICS
Task PThread
JVM
thread
CICS
Task PThread
JVM
thread
CICS
Task PThread
JVM
thread
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)
JCICS
API
JVM
thread
JVM
thread
JVM
thread
JVM
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

Convergence
Of features, fix packs and timing

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

Liberty in CICS – a Hybrid Runtime
What do you see, CICS or
Liberty?
...It's all a matter of
perspective

 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

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
●
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
03/18/15 19

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.

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

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

3) Enable the JVM server

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.

5) Install Eclipse 3.6.2 - preferably JEE version, but Classic will suffice.
http://www.eclipse.org/downloads/packages/release/helios/sr2

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

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

8) Export the CICS bundle project

9) Pick a zFS location for the CICS bundle project

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

11) Install the CICS bundle definition

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/

zFS
zOS
App
App
App
CICS
Liberty
JVM server
Deploy
Eclipse with Liberty Tools
Use
CICS
Resources
Enable
Putting it all together

2829 liberty

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