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Defining a Pragmatic and Practical SOA Focused Enterprise Architecture Asanka Abeysinghe WSO2, Inc Vice President, Solutions Architecture Chintana Wilamuna.

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Presentation on theme: "Defining a Pragmatic and Practical SOA Focused Enterprise Architecture Asanka Abeysinghe WSO2, Inc Vice President, Solutions Architecture Chintana Wilamuna."— Presentation transcript:

1 Defining a Pragmatic and Practical SOA Focused Enterprise Architecture Asanka Abeysinghe WSO2, Inc Vice President, Solutions Architecture Chintana Wilamuna WSO2, Inc Architect, Solutions Architecture

2 Asanka Abeysinghe -http://asanka.abeysinghe.orghttp://asanka.abeysinghe.org -asankaa AT wso2 DOT com

3 Chintana Wilamuna -http://engwar.comhttp://engwar.com -chintana AT wso2 DOT com

4 Goals of the Day -Understand the relationship between EA and SOA** -How SOA helps to resolve EA challenges ** -Mapping EA patterns to SOA -Identify reference architecture(s) -Fill the reference architecture(s) using WSO2 products -Use a pragmatic approach to solution architecture -Identify a real-world problem(s) and architect a solution from scratch ** will discuss on Thursday, Track-2, 11AM-11:45 “Establishing an SOA focused EA”

5 Agenda -Intro -Reference Architecture for EA Patterns -Gateway -Façade -WOA (WEB Oriented Architecture) -Reference Architecture for EA Patterns cont.. -EDA (Event Driven Architecture) -Master Data Hub (MDM, ETL) -Entitlement Break Lab exercise (Solution building)*** -Q&A *** identify your use-cases

6 Format -Pattern overview -Problem space -Technical Problem -Business Problem (use-cases) -Reference Architecture -Vendor neutral -with WSO2 Stack

7 Pattern : Gateway -An architecture layer encapsulates access to internal/external systems/resources -Single interface to; -Route -Validate -Secure -Govern -Monitor messages -Related pattern – Façade

8 Gateway

9 SOA Gateway

10 SOA Gateway - Extended

11 Gateway using WSO2

12 Gateway using WSO2 cont.

13 Gateway Implementation Patterns : Centralized

14 Gateway Implementation Patterns : Federated

15 Federation and Multi-tenancy

16 Gateway Implementation Patterns : Multi-tenanted

17 Gateway - sub-pattern : Façade -Façade -Service Façade -API Façade -Service Granularity -Fine-grained to -Coarse-grained -Binding -Industry standards

18 Gateway Demo : after the break

19 MVC (Model View Controller) -Business logic in WEB and backend layer -WEB layer tight- coupled with backend

20 WOA (Web Oriented Architecture) -Bring SOA principles to WEB programming -Loosely-coupled -Light-weight web apps (zero business logic) -Light-weight protocols (REST, JSON, POX, protobuf) -WEB API design

21 WOA cont.

22 WOA using WSO2

23 Event Driven Architecture - EDA  Event  Channel  Consumer  Create/emit event (emitter/agent)  Transfer event (HTTP, File, etc…)  Consume event  Patterns  Publish/Subscribe  Store and forward  Pont-to-point  Request-reply

24 Traditional EDA Event Generator Event Consumer Channel

25 EDA with SOA Event Generator Message Broker Event Consumer Event Bus / Channel BAMCEP

26 Event Bus / Channel EDA+SOA with WSO2 Event Generator Message Broker Event Consumer BAMCEP

27 Event bus / Channel -Usually an enterprise service bus -Emitters and consumers connected through the bus -Different interfaces / message formats -Generating events from the bus itself -Integrating non-event based systems -WSO2 ESB -WS-Eventing based interactions / integrations -Transforming to and from WS-Events and general triggers -Reliable delivery with a JMS broker

28 Message Broker -Supporting different messaging patterns -Queue based and pub/sub -Reliable delivery of messages/events -WSO2 Message Broker -Scalable, distributed message storage based on Cassandra -Distributed queuing

29 Business Activity Monitoring -Monitoring end-to-end business message flow -Identifying/collecting/tracing business transactions -WSO2 BAM -Scalable analytics using Hadoop -Scalable data storage model, Cassandra -Flexible deployment model (external Hadoop cluster and external Cassandra ring) -Intuitive and powerful dashboarding

30 Complex Event Processing -Reading multiple continuous event streams -Identify different patterns from these events -WSO2 CEP -High performant event processing engine -Extensible query language, Siddhi

31 Master Data Management - MDM ETL (extract / transform / load) Secure transmission of data Consistent updates Message transformation Aggregation/enrichment of data Data mapping Multiple protocols Multiple message formats

32 MDM problem DS 1 DS 2 DS 3 DS 4 System A Legacy System ETL Master Data Data sources

33 MDM architecture Data service Transports MediateTransformFilterValidate Downstream Apps DB Monitoring Access API Configuration Repository

34 MDM with WSO2 Web service Transports MediateTransformFilterValidate SOAP Downstream Apps DB SQL External / Internal consumers

35 MDM with WSO2 -Consistent data API to interact with master repo -Streamlined integration of downstream apps -ETL from different sources/protocols/messages -Centralized configuration repository -Secured/metered/throttled API for external and internal consumers -Monitoring (ETL process, data access, API invocations etc…) -Pluggable and independently scalable components

36 MDM with WSO2 -WSO2 ESB -Multiple protocols / SOAP, JSON, CSV, Copybook, Fixed length -Easy extension model : transports, message builders, custom mediators -Stream processing on large files (extract) -WSO2 Data Services -API for data access (relational / NoSQL) -Declarative definition / Web interface / DeveloperStudio -Security (WS-Security) -QoS (caching, throttling, etc…)

37 MDM with WSO2 -WSO2 G-Reg -Configuration repository -Artifact governance using Governance Framework -WSO2 API Manager -Consumer API (JSON, OAuth2, role based access) -Metered and monitored -WSO2 BAM -Monitor ETL process (# records processed, successful/failure rate) : real time alerting after CEP integration -Operational, admin, C level dashboards

38 Entitlement -Once users authenticate, making authorization decisions -Who can access what (based on the user/role) -What web service? What operation? -Typically authorization logic embedded in business functions/services -Implementing for each and every services -Policy based approach. Reusing the same authorization policy

39 Entitlement architecture Policy Decision Point User Attribute Finder Resource FinderPolicy Finder

40 Entitlement with WSO2 Policy Decision Point User Attribute Finder Resource FinderPolicy Finder Decision Cache Attribute CacheResource CachePolicy Cache Policy Enforcement Entitlement Service

41 Entitlement with WSO2 -Decoupled authorization logic -Fine grained authorization policies using XACML -Authorization calls via SOAP, Thrift and WS-XACML -Authorization decision caching -Attributes / Resources / Policies -Pluggable user repositories (Active Directory, LDAP, DB)

42 Entitlement with WSO2 -Entitlement service (SOAP / WS-SOAP / Thrift). REST interface after JACML -Pluggable PIP (policy information point) attribute finders -Default attribute finders talking to G-Reg (Policy and Resource details) and user repository for user attributes (Active Directory / LDAP etc…) -Caching for increased performance

43 Pattern : Gateway -Single interface to; -Route -Validate -Secure -Govern -Monitor -Related pattern – Façade

44 Thank You


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