Webinar file gateway
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The document discusses using a file gateway pattern to modernize legacy systems that use file-based operations. It describes how an intermediary file processing logic can be positioned between a legacy system and services to transform incoming and outgoing files. The file gateway pattern can be implemented using WSO2 Enterprise Service Bus concepts like the VFS transport and Smooks mediator. This allows integrating legacy systems that use file-based operations with modern services.
Webinar file gateway
- 1. for Modernizing Legacy Systems Mifan Careem SOA Pa+erns: File Gateway Director, Solu-ons Architecture, WSO2 Senior So5ware Engineer WSO2 Jason Catlin
- 2. Agenda ๏ About WSO2 ๏ SOA and Legacy Moderniza?on ๏ Legacy systems and file based ops ๏ File based Gateway ๏ Related PaDerns ๏ Bringing it all together ๏ References 2
- 3. 3 About the Presenters ๏ Mifan Careem, Director of Solu?ons Architecture at WSO2 ๏ Mifan AT WSO2.com ๏ Works closely with clients and WSO2 engineering and sales teams, in defining domain specific solu?ons architectures ๏ Jason Catlin, Senior SoMware Engineer at WSO2 ๏ Jason AT WSO2.com ๏ Helps sales teams with technical pre-‐sales queries and works closely with customers in solving customer problems
- 4. 4 About WSO2 ๏ Global enterprise, founded in 2005 by acknowledged leaders in XML, web services technologies, standards and open source ๏ Provides only open source plaXorm-‐as-‐a-‐service for private, public and hybrid cloud deployments ๏ All WSO2 products are 100% open source and released under the Apache License Version 2.0. ๏ Is an Ac?ve Member of OASIS, Cloud Security Alliance, OSGi Alliance, AMQP Working Group, OpenID Founda?on and W3C. ๏ Driven by Innova?on ๏ Launched first open source API Management solu?on in 2012 ๏ Launched App Factory in 2Q 2013 ๏ Launched Enterprise Store and first open source Mobile solu?on in 4Q 2013
- 5. 5 What WSO2 delivers
- 7. The need to Modernize Enterprise Systems ๏ With ?me, enterprises need to evolve their exis?ng systems, opera?ons, business logic and partners to meet modern day needs and innovate ๏ Exis?ng systems may consist of legacy technologies, legacy logic contained in files, complex infrastructure and legacy transport such as FTP etc. ๏ Due to the ?me and cost complexi?es, prior investments, integra?on requirements and infrastructure factors, enterprises cannot leave behind the exis?ng plaXorms ๏ Hence organiza?ons required the capability to modernize these exis?ng systems with minimal risk and minimal effect to the legacy systems in a short ?me-‐frame 7
- 8. Drivers for moderniza?on ๏ Time and schedule ๏ Minimized development and deployment costs ๏ Monitoring and metering ๏ Quality ๏ Minimized Risk ๏ System performance ๏ Agility and flexibility 8
- 9. Moderniza?on strategies ๏ Informa4on integra4on ๏ Web enabling legacy plaXorms ๏ End to end service plaXorm 9
- 10. An Enterprise Requirement ๏ Modernize an exis?ng legacy tax plaXorm that uses files as the media of communica?on. Batch opera?ons are based on files that are pushed via FTP from 3rd party systems. Output to the flow should eventually be files 10
- 11. File Gateway PaDern 11 ๏ Solu?on: Intermediary two-‐way file processing logic is posi?oned between the legacy system and the service ๏ Applica?on ๏ Inbound: Detect file drops, transform and use ๏ Outbound: intercept service output, transform and convert to files
- 12. Example Scenario 12 ๏ Files are pushed from external systems into a file store ๏ FTP, SFTP ๏ File store is monitored by a gateway ๏ File content is processed from input file ๏ Processing takes place based on content of files
- 13. WSO2 ESB as a File Gateway 13
- 14. WSO2 ESB -‐ Concepts ๏ Proxy, Sequences, Mediators ๏ VFS Transport ๏ WSO2 ESB’s feature rich file transport ๏ VFS transport uses the versa?le Apache Commons-‐VFS library as the underline library for various file system related opera?ons ๏ WSO2 ESB's VFS transport consider all file names as URIs ๏ Smooks Mediator ๏ In-‐built ESB mediator for effec?ve transforma?ons ๏ Enterprise Integra?on PaDerns 14
- 15. A Smooks EDI Scenario ๏ Drop an Electronic Data Interchange (EDI) file to VFS input directory. ๏ ESB picks the file and sends to its Smooks mediator. ๏ Smooks mediator transforms the EDI file to XML format. ๏ Based on the message type sending file to correct endpoints. 15
- 16. ESB sequences using graphical tool 16
- 17. File Gateway for other scenarios 17 Diagram
- 18. Impact and Issues ๏ The type of logic provided by this paDern is unsuitable when immediate replies are required by either service or legacy system. ๏ Deployment and governance of two-‐way file processing logic can further add to opera?onal complexity and may require specialized administra?on skills. 18
- 19. Focus on your priori?es! 19
- 20. Related PaDerns ๏ Data Format Transforma?on ๏ Protocol Bridging ๏ Legacy Wrapper ๏ Mul?-‐channel Endpoint 20
- 21. Bringing it all together 21
- 22. The bigger picture 22
- 23. Demo 23
- 24. Summary ๏ Many legacy systems maintain core business logic in file based opera?ons ๏ The File Gateway paDern acts as a media?on layer between file logic and service logic ๏ File Gateway can be implemented using various technologies and concepts such as WSO2 ESB, WSO2 BPS, WSO2 AS, VFS transport, Smooks mediator 24
- 25. 25 References ๏ Enterprise Integra?on PaDerns with WSO2: hDps://docs.wso2.com/display/Integra?onPaDerns ๏ WSO2: hDp://wso2.com/
- 26. Contact us !