Oracle SOA Suite 11g Mediator vs. Oracle Service Bus (OSB)

Oracle SOA Suite 11g Mediator vs Oracle Service Bus (OSB) DOAG conference 2009 Guido Schmutz, Technology Manager / Partner Trivadis AG 19.11.2009, Nürnberg

Introduction Guido Schmutz Working for Trivadis for more than 12 years Oracle Ace Director for Fusion Middleware and SOA Co-Author of different books Consultant, Trainer Software Architect for Java, Oracle, SOA and EDA Member of Trivadis Architecture Board Trivadis Technology Manager More than 20 years of software development experience Contact: guido.schmutz@trivadis.com

About Trivadis Swiss IT consulting company 13 locations in Switzerland, Germany and Austria ~ 540 employees Key figures 2008 Services for more than 650 clients in over 1‘600 projects Over 150 service level agreements More than 5‘000 training participants Research and development budget: CHF 6.0 Mio. / EUR 3.6 Mio.

Trivadis Integration Architecture Blueprint

Agenda History Oracle SOA Suite 11g Which component to use when? Architecture Summary Data are always part of the game.

History of the Oracle SOA platform Oracle Service Bus Oracle ESB Oracle BPEL Source: Oracle

Positioning products of Oracle SOA Suite 10g BPEL Process Manager BPEL Process Manager is the primary composition, orchestration and process engine in the SOA Suite Oracle Enterprise Service Bus (OESB) old „ESB“ –OESB was the primary ESB prior to BEA aquisition. After acquisition of BEA its role is to provide mediation services between SOA Suite components In 11g this will be known as the Mediator and acts as a component in an SCA assembly OESB is the only ESB available if running on a non-Weblogic server Oracle Service Bus (OSB) Previously known as BEA Aqualogic Service Bus (ALSB) Oracle’s primary service bus the preferred platform for service virtualization and interactions external to the SOA Suite Currently OSB is only available on WebLogic server but the intention is provide it on other platforms as well in the future OSB is the foundation of service bus functionality moving forward Can be used independently, without SOA Suite

From Oracle SOA Suite 10g to 11g

What is new with Oracle SOA Suite 11g Most importantly SOA Suite 11g sees the introduction of a common service infrastructure through the Service Component Architecture (SCA) Standard This way the individual products of 10g become so called service engine within SCA With the benefit of a much better integration Mostly beneficial for the developer, as he can now develop and deploy from a single development environment The Oracle Service Bus (prev. BEA) is not yet available in a version 11g But version 3.1 can be combined with SOA Suite 11g with no problems But when should we use which component? How does a reasonable combination of Oracle SOA Suite 11g and Oracle Service Bus look like?

What do the different component offer? BPEL OSB Mediator 11g OESB Message Transformation (XSLT) Human Workflow Process State/ Long running Message Filter Adapter Framework Decision Service Process Orchestration XQuery Transformation Value Mapping Cross-Reference Tables (XREFs) Split-Join XA Support JDeveloper Eclipse IDE Web Console SLA Dashboard Resubmit Message Ordering Message Throttling Service Pooling (Load Balancing) Instance Monitoring Security Message Validation Reliable Messaging Asynchronous Messaging Service Types and Transport Compensation Parallel Processing Graphical Flow Design Sensors Message Routing

BPEL vs. OSB/Mediator BPEL Primarily for stateful and long running processes Orchestrating service calls Implementation of composite services Integration of Rules Engine and Human Workflow Instance Monitoring OSB/Mediator Stateless Messaging Value Mapping and Cross-Reference Tables for supporting canonical datamodels Implementation of the VETRO pattern V alidate E nrich T ransform R oute O perate

Mediator vs. Oracle Service Bus (OSB) Mediator The “tiny”, “light weight” service bus Limited to simple Mediator functionality for the implementation of the VETRO pattern V alidate E nrich T ransform R oute O perate Value Mapping and Cross-Reference Table for supporting the canonical datamodel Developlent through JDeveloper IDE Event Delivery Network for Publish-Subscribe semantic Message Transformation with XSLT Can be used and deployed as a SCA component Oracle Service Bus (OSB) The large, powerful service bus Extended functionality important for enterprise-wide Integration, like Message Throttling Service Pooling Reliable Messaging Development through Eclipse IDE or Web Console Message Transformation over XQuery and XSLT OSB specific deployment Not yet integrated with SCA

OSB: Service Pooling Routing to active endpoints, service load balancing Option for the system to automatically take non-responsive URIs out of the pool, and put them back in as they become responsive Alerts will be generated when the status of the endpoint changes from Up  Down and vice versa Service Clients Endpoint URL 1 Endpoint URL 3 Endpoint URL 2 Proxy Svc Client 1 OSB Cluster Bus Svc If a URI is non-responsive, take the URI out of the pool Bring the URI back in the pool when it is back-up

OSB: Split-Join Incoming payload is split into multiple service invocations Multiple service responses are aggregated into single payload Parallel action results into significant performance improvement Split ForEach ProcessOrder AquaLogic Service Bus Join ProcessOrder 15 Order 1 Order 2 Order 3 SPLIT Response 1 Response 2 Response 3 JOIN Request Payload Response Payload

OSB or Mediator: Asynchronous Messaging Synchronous to Asynchronous protocol transformation Notation taken from the book: Integration Architecture Blueprints synchronous asynchronous

BPEL: Composite Services Composite services can be easily and declaratively combined with BPEL

OSB or Mediator: Transformation and canonical datamodel

SOA Architecture Mediator (OESB) OSB Oracle Data Integrator (ODI) OSB

(Business)process starts a traditional ETL task

Federated Service Bus Pattern Application level multiple application buses per domain, one for each application Domain level multiple domain buses, one for each domain Corporate (enterprise) level one corporate bus for the enterprise External level one external gateway for the enterprise Source: http://soa-eda.blogspot.com/2009/03/federared-service-bus-infrastructure.html Mediator (OESB) Mediator (OESB) OSB OSB

Multiple SOA Domains linked by Enterprise-level ESB

Summary Both Mediator 11g and Oracle Service Bus implements ESB functionally well The decision which service bus to use, can be taken Based on the required and supported features Based on the information, if the SOA Suite 11g with all the other components like BPEL, Rules, Human Workflow, etc. are needed as well or if only a standalone ESB is necessary If other components of SOA Suite 11g are needed => Mediator more likely If standalone ESB is needed => Oracle Service Bus more likely In a large and complex SOA it makes sense to combine the two via the Federated Bus pattern i.e. using both the Mediator and Oracle Service Bus

Thank you! DOAG conference 2009 Guido Schmutz, Technology Manager / Partner Trivadis AG 19.11.2009, Nürnberg

Oracle SOA Suite 11g Mediator vs. Oracle Service Bus (OSB)

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