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RESTifying WS-* Services  A Case Study in  RFID (Radio Frequency IDentification) Dominique Guinard SAP Research & ETH Zurich Mathias Mueller University of Fribourg 167
Today’s Menu ,[object Object],[object Object],[object Object],[object Object],[object Object],[ flickr.com/photos/lessio/1346732230/  ]
BACKGROUND ,[object Object],[object Object]
The EPC Network in a Nutshell
MOTIVATION ,[object Object],[object Object]
Bringing the EPC Network to the Web? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[Paut09]: Pautasso, Cesare, and Erik Wilde. “Why is the Web Loosely Coupled? A Multi-Faceted Metric for Service Design.” In  Proc. of the 18th International World Wide Web Conference (WWW2009) . Madrid, Spain, 2009. [Paut08]: Pautasso, Cesare, Olaf Zimmermann, and Frank Leymann. “Restful web services vs. "big"' web services: making the right architectural decision.” In  Proc. of the 17th international conference on World Wide Web (WWW '08) , 805―814. New York, NY, USA: ACM, 2008.
ARCHITECTURE ,[object Object],[object Object],REST? tinyurl.com/ restwife
Design: Addressability & Connectedness ,[object Object],[object Object],[object Object],[object Object],[object Object],BASE_URL/ location /migros:basel/ reader /warehouse:incoming/ time /2009-12-21T13:22:04.000Z/ event /EPC Richardson, Leonard,  and Sam Ruby.  RESTful Web Services .  O'Reilly Media, Inc., 2007.   
Design: Wait, the EPCIS is not Hierachical! ,[object Object],[object Object],[object Object],[object Object],[object Object],BASE_URL/ eventquery/ result?param1=value1&..& paramN=valueN BASE_URL/ eventquery/result? reader=sap:regensdorf:frc:storage& epc=urn:epc:id:sgtin:200057000.*
Design: Representations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Implementation: Which REST Framework?  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[Field00]: Fielding, Roy Thomas.  “ Architectural styles and the  design of network-based  software architectures.”  University of California, Irvine,  2000.   [ googlevolume.com/jax-rs-implementations ]
Implementation: Component Architecture ,[object Object],[object Object],[object Object],[object Object]
Benchmarking REST vs WS-*
DEMONSTRATION ,[object Object],[object Object]
Demo: EPC Mashup Dashboard ,[object Object],[object Object],[object Object],[object Object],[object Object],What are my current stock levels for this Chocolate? Where is this Chocolate coming from? Where is the new one I ordered?
Dominique Guinard guinard.org SAP Research / ETH Zurich dominique.guinard at sap.com Mathias Mueller diuf.unifr.ch/softeng University of Fribourg, CH mathias.mueller at unifr.ch Delicious:  delicious.com/misterdom/RESTfulEPCIS Blog:  webofthings.com
Backup
The EPC Network in a Nutshell ,[object Object],[object Object],[object Object],[object Object],[ www.epcglobalinc.org/standards ]

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RESTifying WS-* Services: Case Study in RFID

  • 1. RESTifying WS-* Services A Case Study in RFID (Radio Frequency IDentification) Dominique Guinard SAP Research & ETH Zurich Mathias Mueller University of Fribourg 167
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  • 4. The EPC Network in a Nutshell
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  • 14.
  • 15.
  • 16. Dominique Guinard guinard.org SAP Research / ETH Zurich dominique.guinard at sap.com Mathias Mueller diuf.unifr.ch/softeng University of Fribourg, CH mathias.mueller at unifr.ch Delicious: delicious.com/misterdom/RESTfulEPCIS Blog: webofthings.com
  • 18.

Editor's Notes

  1. www.webofthings.com
  2. Where we started, a quick overview of our first trials to integrate sensor networks to business applications. A few guidelines on how to make sensor nodes first class citizens of the Web. Our implementation of these guidelines on the Sun SPOT plateform, including the video of a business use case we implemented using the RESTful Sun SPOTs.
  3. The ``what'': what tagged products (EPCs) were read. The ``when'': at what time were the products read. The ``where'': where were the products read, in terms of Business Location (e.g. ``Floor B''). The ``who'': what readers (Read Point) recorded this trace. The ``which'': what was the business context (Business Step) recording the trace (e.g. ``Shipping''). Set of standards: Creating an « Internet of Things » The EPCIS is the information service: Sharing of RFID data. Exposes as standard WS-* interface Serveral EPCIS vendors: SAP AII (Auto-Id Infrastructure) IBM InfoSphere Fosstrak EPCIS (open source) Oracle Oracle Sensor Data Manager
  4. According to expert of the domain (benchmarking made at SAP): Apache CFX According to me: Jersey
  5. EPCIS: Fosstrak, SAP AII REST Fwork: jersey Atom: Abdera Container: Apache tomcat / Grizzly / Glassfish v3.
  6. Yes, cool! But actually: Warning!!!! -> We could really optimize WS-* services to perform way better (caching the WSDL, compressing the data). Still, these results are nicely surprising! Hem actually we could also optimize REST services as well (compressing and …. caching!!!!)
  7. Test it on epcmashup.webofthings.com
  8. Find all the links and resources mentionned in this talk on: http://delicious.com/misterdom/RESTfulEPCIS