GSE/CICS working group Brussels,

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1 IBM CICS Transaction Server for z/os V3.1 technical overview GSE/CICS working group Brussels, ibm.com/software/ts/cics refer to IBM Software Announcement K-H Marquardt IBM Deutschland SWG 2006 IBM Corporation

2 Acknowledgements The following are trademarks of International Business Machines Corporation in the United States, other countries, or both: IBM, CICS, CICS TS, CICS Transaction Server, DB2, MQ, OS/390, S/390, WebSphere, z/os, zseries, Parallel Sysplex. Java, and all Java-based trademarks and logos, are trademarks of Sun Microsystems, Inc. in the United States, other countries, or both. Microsoft, Windows, and the Windows logo are trademarks of Microsoft Corporation in the United States, other countries, or both. Other company, product, and service names and logos may be trademarks or service marks of others. 2 IBM CICS TS for z/os V3.1 Technical Overview

3 Agenda IBM Software Group CICS Transaction Server Evolution Strategic options to integrate CICS applications Extentions for the CICS Web Support Channel & Container ( big Comarea ) OTE TCBs, XPLINK Enterprise Management Discontinued function Prerequisites, packaging Summary 3 IBM CICS TS for z/os V3.1 Technical Overview

4 IBM Software Group CICS today Pervasive Devices üover 35 years and $1 Trillion invested in Applications... IDC üover $1 trillion processed/day üover 30 billion transactions/day ümost people use CICS Combining the reliability and security of CICS software with the flexibility of e-business technology Evolution, NOT Revolution 4 Technical Overview

5 CICS Transaction Server Evolution (Highlights) Integration Transformation System Management CICS TS V1 CICS BTS CICS Web Support 3270 Bridge, EXCI Interface VSAM RLS CFDT, shared TSQs CPSM WUI System Logger Macro Tables CICS TS V2 Java Support, SDK JCICS APIs ECI over TCP/IP Link3270 Bridge OTS support for EJBs SOAP for CICS Feature OTE TCBs for DB2 App JDBC 2.0 WLM for Link Bridge End-to-End Debugging XML Parser in Cobol + PL/I CF Structure rebuild EJB Deployment simplified DB2 Group Attach WUI includes Definitions CPSM new function support Mon/Stats extended Info Center CICS TS V3 Web Services Support Containers & Channels OTE TCBs open for Appl. XPLINK for C,C++ improved codepage conversion HTTP 1.1 in/outbound TLS, 256-bit encryption SSL performance CPSM WUI improvements, flexible Customizing CPSM- and RDO-Extentions for new functions simplified CPSM migration in parallel: - further improvements in CICS Trx.Gateway and Universal Client - comprehensive tools portfolio (AD, PD, CICS tools) 5 IBM CICS TS for z/os V3.1 Technical Overview

6 Strategic Options for Integration Standard Architectures provide comprehensive development tools and runtime support in CICS Web services using SOAP (Simple Object Access Protocol) Enterprise JavaBeans (J2EE EJB) JCA (J2EE Connector Architecture) Standard Transports are suitable for use by applications that require greater control of the protocol and do not need the development tools or qualities of service provided by the standard architectures. These applications will assume more responsibility for systems management, security, and recovery HTTP (HyperText Transfer Protocol) WebSphere MQ (MQ APIs or JMS - Java Messaging Service) TCP/IP sockets (CICS socket feature of z/os communication manager) 6 IBM CICS TS for z/os V3.1 Technical Overview

7 Strategic Options - Access into CICS CICS TS A Web services SOAP 1 J2EE App Server Web services Browser Servlet JCA EJB 3 2 I B D http 4 WebSphere MQ 5 TCP/IP Sockets 6 7 Technical Overview

8 Strategic Options - Access from CICS CICS TS A 1 SOAP J2EE App Server Web services Web services B 2 EJB http Web server WebSphere MQ TCP/IP Sockets 8 Technical Overview

9 CICS Web Services Support 1 CICS TS Service Requester Service Provider Server Application WSDL Client Application Transport HTTP or WebSphere MQ HTTP listener WebSphere MQ trigger monitor CPIH Handler chain Pipeline SOAP body XML Language structure CICS as Service Provider dynamic resource install Endpoint = /example/myservice Data Mapping WSBind CSD URIMAP PIPELINE HFS files Pipeline config WSDL WEBSERVICE WSBind 9 IBM CICS TS for z/os V3.1 Technical Overview

10 CICS web services => access to/from CICS via SOAP protocol best suited for integration in an SOA (service oriented architecture) CICS can be service provider and/or service requester loose coupling service description, message layout and transport in WSDL document plattform and language independance through XML Web services standard support for inbound and outbound SOAP 1.1 and 1.2, WS-I Basic profile 1.0a, WS-Security, WS-Atomic Trx. HTTP/1.1 or WebSphere MQ transport transport mechanism is transparent to CICS applications extensive tooling available WD/z IDE for host application development and debugging CICS provides Utilities to generate WSDL from language structure CICS service flow feature Design and generate component in WD/z Runtime component in CICS 1 10 IBM CICS TS for z/os V3.1 Technical Overview

11 CICS Web Services Support 1 CICS TS Client Application Exec cics invoke webservice(x) Handle response Service Requester Service Provider Pipeline Handler chain HTTP WebSphere MQ Transport Server Application Language structure SOAP body XML HTTP or WebSphere MQ Data Mapping Dynamic resource install HFS Pipeline config WSDL CSD URIMAP PIPELINE CICS as Service Requester WSBind WEBSERVICE 11 IBM CICS TS for z/os V3.1 Technical Overview

12 CICS EJB Container Java Client Java IDL Client CORBA Client O R B RMI/IIOP RMI/IIOP IIOP CICS EJB Server CICS Corba Server / EJB Container EJBHome EJBObject 2 Cobol EJB session bean in CICS (local / remote) session + entity bean in other EJS CICS-Pgm(DPL) via Java Connector (CTG) JCICS: Link / Start + CICS Ress.Access JDBC, SQLJ "any Java", e.g. XML, java.net, etc. CICS supports subset of EJB 1.1 specification see Session Beans statefull and stateless o Entity Beans are not supported in CICS solution is method calls to remote Entity Beans or local DB access o certain J2EE APIs are not implemented in CICS (e.g. mail APIs) not suitable for CICS existing procedural logic can be reused 12 IBM CICS TS for z/os V3.1 Technical Overview

13 Java Evolution 2 JVM pool in CICS JVM Class Cache JVM Class Cache Worker JVM Worker JVM Worker JVM IBM SDK for z/os, Java 2 Technology Edition (1.4.2) ƒfull function JVM, Java compatible logo ƒdownload from Shared Class Cache JVM classes Middleware Application Master JVM SDK delivers many enhancements in the areas of security, XML,networking and debugging as well as fixes Shared class cache ƒseveral worker JVMs share the class cache ƒjvm base classes, trusted middleware, sharable appl. classes ƒmaster JVM (runs on JM TCB) ƒone per CICS region, owner of shared class cache and Jitcompiled code ƒpool of n worker JVMs (run on J8/J9 TCBs) ƒexecute Java application 13 IBM CICS TS for z/os V3.1 Technical Overview

14 Introduction to J2CA terminology J2EE Application Server Connection Pooling Transaction Manager Security Manager New in JCA 1.5 Container-Component Contract System Contracts Connection Management Transaction Management Security Management Life Cycle Management Work Management Message Inflow Transaction Inflow 3 Application Component Resource Adapter Common Client Interface (CCI) EIS Specific Interface Enterprise Information System 14 IBM CICS TS for z/os V3.1 Technical Overview

15 CTG for Multiplatforms 3 Distributed platform Java Client ctgclient.jar cicseci.rar cicsecixa.rar cicsepi.rar TCP or SSL Gateway daemon Protocol handler ctgserver.jar CICS TG ctgjni.dll Client daemon JNI module APPC TCP62 TCP/IP z/os, OS/390 VSE, TxSeries CICS Server AIX, Linux/Intel, Linux/Power, z-linux, HP-UX, Sun Solaris, Windows XP& IBM CICS TS for z/os V3.1 Technical Overview

16 CTG for z/os 3 z/os CICS TG TCP or SSL Gateway daemon JNI module Java Java Client ctgclient.jar cicseci.rar cicsecixa.rar Protocol handler ctgserver.jar libctgjni.so EXCI MRO IRC CICS TS 16 IBM CICS TS for z/os V3.1 Technical Overview

17 Channel & Containers more flexible alternative to comarea data exchange between CICS programs and transactions logically related data in separate containers helps to avoid overlays reduces complexity simplify application changes Container: CICS maintained storage dynamically allocated by CICS deletion after last program returns no size limitation a channel can hold 1 to n containers unit for data exchange only 1 channel can be transferred efficient data transport only changed data is transferred flexible codepage conversion CP can be defined in PUT/GET commands Existing COMAREA application Program A EXEC CICS LINK PROGRAM( PROGRAMB ) COMMAREA(structure) Program A EXEC CICS PUT CONTAINER(container name) CHANNEL(channel-name) FROM(structure) EXEC CICS LINK PROGRAM( PROGRAMB ) CHANNEL(channel-name) EXEC CICS GET CONTAINER(container name) INTO(structure) Program B Appl. using Container and Channel EXEC CICS ADDRESS COMMAREA(structure-ptr) Program B EXEC CICS GET CONTAINER(container name) INTO(structure) EXEC CICS PUT CONTAINER(container name) FROM(structure) 17 IBM CICS TS for z/os V3.1 Technical Overview

18 Channel & Containers... Container: can be compared to a named Comarea storage allocation above 16MB, below 2GB allocation, access and lifetime managed by CICS allocation at time of PUT command execution non-persistent storage Channel: can be compared to a named parm list one to many containers per channel (no limitation) a server program may receive different channels processing logic depending on channel name only one channel can be passed DPL, XCTL, START, RETURN dynamic codepage conversion Exec CICS GET / PUT Container (a) INTOCCSID(x) / FROMCCSID(x) overrides static definition in URI resource requires z/os conversion support 18 IBM CICS TS for z/os V3.1 Technical Overview

19 Channel & Containers best practices reduced complexity, optimal performance separate containers for Input and Output dedicated container for error information separate containers for different structures no overlays separate containers for different data types e.g. character / binary data separate containers for read only vs. read/write data separate container for large amount of data define channel and container names in copybook 19 IBM CICS TS for z/os V3.1 Technical Overview

20 CICS web support extentions URIMAP resource definition associates URI with corresponding CICS processing CICS as web service provider associates URI with PIPELINE and WEBSERVICE definitions CICS as web service requester or HTTP client avoids hardcoding of server URLs CICS as HTTP server can replace the analyser exit CICS TS 3.1 HTTP listener extentions conditionally conforms to HTTP/1.1 specifications persistent connections pipelining (send several requests without waiting for acknowledgement) chunking (separates a message in smaller pieces for performant transport) static response e.g. DOCTEMPLATE or HFS file returned as static page dynamic response - using Exec CICS Web APIs in application redirection redirects request to different server 20 IBM CICS TS for z/os V3.1 Technical Overview

21 CICS web support extentions DOCTEMPLATEs can now be stored in HFS files Codepage conversion CICS can use the Unicode conversion services of z/os Converts character data between UTF-8, UTF-16, ASCII CPs and EBCDIC for setup see z/os manual SA Codepage conversion can be specified in Exec CICS Web API Analyser programm URIMAP resource definition Container API 21 IBM CICS TS for z/os V3.1 Technical Overview

22 Utilisation of OTE TCBs and XPLINK for C, C++ API=OPENAPI program resource definition for Cobol, PL/I, ASM, C, und C++ programs (C without XPLink! ) programs must be reentrant and threadsafe!! program execution on new L8 / L9 TCBs Compile/Link of C, C++ programs with XPLINK option provides performance improvements and page protection programs must be reentrant and threadsafe!! program execution on new X8 / X9 TCBs OTE TCBs used for SSL connection management new SP mode TCB, owns shared LE enclave and SSL cache new S8 TCBs allocated from SSL-TCB pool for duration of SSL operation reduces storage demand, allows more parallel SSL sessions 22 IBM CICS TS for z/os V3.1 Technical Overview

23 TCB switching CICSAPI vs. OPENAPI THREADSAFE + CICSAPI (as in V2) QR TCB L8 TCB Program start EXEC CICS threadsafe EXEC CICS threadsafe EXEC SQL EXEC SQL QR TCB after task start immediate switch to L8 THREADSAFE + OPENAPI L8 TCB Program start EXEC CICS threadsafe EXEC CICS threadsafe EXEC SQL EXEC SQL EXEC CICS threadsafe EXEC CICS threadsafe EXEC CICS non-threadsafe EXEC CICS non-threadsafe EXEC CICS threadsafe syncpointing EXEC SQL EXEC SQL syncpointing EXEC SQL EXEC SQL EXEC RETURN EXEC RETURN Caution: user key programs with DB2 + OpenApi: user key = L9 TCB, but DB2 must execute on L8 TCB 23 IBM CICS TS for z/os V3.1 Technical Overview

24 Security Updates Support of Transport Layer Security TLS 1.0 (based on SSL 3.0) Selection of new cipher suites support of AES cipher suites (128-bit, 256-bit) can now specify min. / max. encryption levels SIT parm, suitable level is negotiated with clients Performance improvements for SSL SSL cache in local storage or coupling facility (sysplex) support for more parallel SSL sessions through S8 TCB pool Certificate Revocation list (CRL) processing allows checks against the CRL during SSL handshake with clients new transaction CCRL allows updates to CRL in an LDAP server Revoked User now results in USERIDERR Support for case sensitive passwords 24 IBM CICS TS for z/os V3.1 Technical Overview

25 Architectural patterns new sample application new CICS Sample Application demonstrates best practices separation of presentation logic, business logic and data access usage of channel and containers CICS web services with SOAP over http Catalog and Order Application executables and source code available Cobol data access to VSAM data sets illustrates end-to-end scenario 25 IBM CICS TS for z/os V3.1 Technical Overview

admin views Support for new resources in CICS 3.

26 CPSM WUI Single point of control and definition, many usability enhancements Improved panels more information multi column details display filter User favorites and group profiles Result set warning Confirmation for used filter dynamic selection lists improved BAS admin views Support for new resources in CICS 3.1 Batchrep improvements Favourite views User Profiles Selection lists Collapsible Filters Ability to add a view to favourites Reduction in white space Improved visual presentation 26 IBM CICS TS for z/os V3.1 Technical Overview

27 Simplified CICSPlex SM Setup and Configuration CAS and TSO Component no longer needed MVS1 MVS2 1. install and activate new CMAS 2. Configure MP CMAS a. define CICSplex b. define regions c. define WUI server d. link to partner CMAS CPSM Repository CPSM WUI Server MP CMAS Sysplex information CMAS CPSM Repository 3. configure second CMAS - define link to MP CMAS 4. install agent code (MASs) 5. Install and activate WUI Server 6. Auto-import WUI views CICS CICS CICS CICS CICS CICS 27 IBM CICS TS for z/os V3.1 Technical Overview

CICS Information Center The Eclipse framework reflects strategic direction for delivering IBM documentation New search engine Consistent look and feel Integration with other product information

28 CICS Information Center The Eclipse framework reflects strategic direction for delivering IBM documentation New search engine Consistent look and feel Integration with other product information Customizable add your own information Improved navigation Available on the IBM Web site, installable on your workstation, or servers; Windows 2000, XP Linux Red Hat Enterprise 3.0 Linux SUSE Enterprise 8 and 9 AIX V5.2 and V5.3 For server installation only: z/os V1.4, or later z/linux Red Hat Enterprise 3.0 z/linux SUSE Enterprise 8 and 9 28 Technical Overview

29 Discontinued functions OS/VS COBOL programs abend ALIK 1 byte console ids High Performance Java (HPJ) ECI Base Classes (ECIREQUEST) recommendation: use CCI Connector for CICS Common Connector Framework (CCF) recommendation: use CCI Connector for CICS TCAM TOR CPSM remote MAS agent for Windows CICS Transaction Affinities Utility has only Scanner component Detector and Reporter have moved to IBM CICS Interdependency Analyzer for z/os 29 IBM CICS TS for z/os V3.1 Technical Overview

30 CICS TS V3.1 packaging CICS TS V3.1 elements CICS Transaction Server CICSPlex System Manager Information Center REXX Development and runtime for CICS CICS Application Migration Aid CICS Integrator Adapter WebSphere Developer for z (WD/z) promotion Integrated development environment for CICS and WebSphere COBOL, PL/I, Java and J2EE development z/os file system integration One license included, no service entitlement 30 IBM CICS TS for z/os V3.1 Technical Overview

31 Prerequisites z/os Version 1 Release 4 (5694-A01) + IBM SDK for z/os Java 2 Technology Edition, V1.4.2 Prerequisite for CICS Web services assistant (DFHLS2WS / WS2LS) Java programs and EJBs in CICS benefit from many improvements for WS-Security support IBM XML Toolkit for z/os V1.7 (no charge, Pnr.5655-J51) latest compilers supported IBM Enterprise COBOL for z/os and OS/390 V3 (5655-G53) IBM Enterprise PL/I for z/os and OS/390 V3 (5655-H31) z/os C/C++ (component of 5694-A01) see announcement letter ( ) for a complete list of HW/SW prerequisites and supported compilers 31 IBM CICS TS for z/os V3.1 Technical Overview

32 Planning IBM Software Group CICS TS V1 went out of service in April 2006 SOAP for CICS Feature can coexist still supported to ease migration to CICS Web Services message adapters need modification Channel & Container interface Statement of direction for discontinued functions CPSM TSO User Interface after CICS TS 3.1 in a future Release ONC RPC feature CICS Web Interface COMMAREA interfaces CICS Web Server plug-in 32 IBM CICS TS for z/os V3.1 Technical Overview

33 Summary IBM Software Group CICS TS and WebSphere Application Server are IBM's strategic middleware products that together support practically any mission critical solution Interoperate well using Web services and connectors to support end-to-end on demand systems Complement z/os QoS such as high availability, scalability, low cost per transaction, security CICS TS provides the base for the majority of mainframe applications today An efficient and optimized runtime for the reuse and transformation of existing CICS applications Provides easy to use services that exploit new technologies by building on CICS skills First class support and management of mixed application types and workloads Increased ease of CICS Integration Web services capabilities to extend CICS applications to a Services Oriented Architecture Support for industry-leading SSL and TLS protocols Enhanced Application Transformation Improved performance & Enterprise Management Ability to leverage single development tool for application transformation and integration Service Flow Feature Optimized CICS data exchange capabilities Improved workload throughput Enhanced C and C++ programs performance Extension of the CICSPlex SM Web User Interface 33 Technical Overview

34 Further Information IBM CICS Transaction Server for z/os V3.1 IBM Software Announcement , Transaction Servers & Tools e-newsletter, education, and services - see ibm.com/cics Release Guide, Migration Guide, Books and Manuals, Brochures, Demos, and Technical documents see ibm.com/cics/library/ IBM CICS Tools - see ibm.com/cics/tools IBM Websphere Enterprise Developer - see ibm.com/software/awdtools/studioenterprisedev/ IBM SDK for z/os, Java 2 Technology Edition V1.4 go to ibm.com/servers/eserver/zseries/software/java IBM z/os - see ibm.com/servers/eserver/zseries/zos thanks for your attention 34 IBM CICS TS for z/os V3.1 Technical Overview

35 Web services terminology Extensible Markup Language (XML) A standard for document markup, which uses a generic syntax to mark up data with simple, human-readable tags. The standard is endorsed by the World Wide Web Consortium (W3C). Service provider The collection of software that provides a Web service. Service provider application An application that is used in a service provider. Typically, a service provider application provides the business logic component of a service provider. Service requester The collection of software that is responsible for requesting a Web service from a service provider. Service requester application An application that is used in a service requester. Typically, a service provider application provides the business logic component of a service requester. SOAP Formerly an acronym for Simple Object Access Protocol. A lightweight protocol for exchange of information in a decentralized, distributed environment. It is an XML based protocol that consists of three parts: An envelope that defines a framework for describing what is in a message and how to process it. A set of encoding rules for expressing instances of application-defined data types. A convention for representing remote procedure calls and responses. SOAP can be used with other protocols, such as HTTP. SOAP intermediary A SOAP node that is both a SOAP receiver and a SOAP sender and is targetable from within a SOAP message. It processes the SOAP header blocks targeted at it and acts to forward a SOAP message towards an ultimate SOAP receiver. SOAP node Processing logic which operates on a SOAP message. UDDI - Universal Description, Discovery and Integration Universal Description, Discovery and Integration (UDDI) is a specification for distributed Web-based information registries of Web services. UDDI is also a publicly accessible set of implementations of the specification that allow businesses to register information about the Web services they offer so that other businesses can find them. Web service A software system designed to support interoperable machine-to-machine interaction over a network. It has an interface described in a machineprocessable format (specifically, Web Service Description Language, or WSDL). Web service binding file A file, associated with a WEBSERVICE resource, which contains information that CICS uses to map data between input and output messages, and application data structures. Web service description An XML document by which a service provider communicates the specifications for invoking a Web service to a service requester. Web service descriptions are written in Web Service Description Language (WSDL). WSDL - Web Service Description Language An XML application for describing Web services. It is designed to separate the descriptions of the abstract functions offered by a service, and the concrete details of a service, such as how and where that functionality is offered. XML Extensible Markup Language. XML namespace A collection of names, identified by a URI reference, which are used in XML documents as element types and attribute names. XML schema An XML document that describes the structure, and constrains the contents of other XML documents. XML schema definition language An XML syntax for writing XML schemas, recommended by the World Wide Web Consortium (W3C). 35 IBM CICS TS for z/os V3.1 Technical Overview

CICS and the Web: Web-enable your CICS Applications

CICS and the Web: Web-enable your CICS Applications Leigh Compton CICS Technical Support IBM Dallas Systems Center Webcast 30 July 2002 Session Agenda CICS e-business Strategy Which web-enabling option?