Cyberaide JavaScript: A JavaScript Commodity Grid KitGregor von Laszewski
Fugang WangNov.16 2008
http://www.cyberaide.org
Outline
• Approaches to access Grid- Infrastructure specific tools; middleware; portal
• Web 2.0 technologies applied to Grid portal- JSR 168 portal- Ajax, RESTful, RSS/ATOM, Mashup- A comparison
• The Cyberaide JavaScript framework- Introduction and architecture- A reusable JavaScript library; A portal
• Conclusion and discussion
Approaches to access Grid
• Grid Infrastructure- Condor, PBS, LSF, SGE- Globus, UNICORE, EGEE, Legion
• Middleware/Upperware- CoG Kit- Gridway- Gridshell
• Grid Portal- Teragrid portal, Gridsphere, OGCE
Portal technologies – JSR168
• Java Portlet Specification (JSR168)Portlets
Container
Login
Info
FAQ
Welcome
Server
Portlet Window
Portlet Fragment
Portal Server
Portal technologies – Web 2.0
• Web 2.0 technologies applied to web portals- Web 2.0, a buzz word. “Web as platform”?- Asynchronous JavaScript and XML (Ajax)- Representational State Transfer (REST)- Mashup- Atom and RSS
Portal technologies – Web 2.0
……
• Ajax- XML as data interchange medium- Asynchronous communication with server side- XHTML, CSS, and JavaScript to manipulate and render DOM
components- Decrease user waiting time and increase user experience
Static pages, CGI, ServletStatic pages, CGI, Servlet
Web pageWeb page WebBrowser
WebServer
Ajax engineAjax engine
JS code, CSS, libraries, web resources
JS code, CSS, libraries, web resources
Rendered Web pageRendered Web page
Portal technologies – Web 2.0
• REST/RESTful web service- Roy Fielding’s doctoral dissertation in 2000- Resource = functionality + state- Unique addressable through URI for each resource- Use HTTP verbs such as GET, POST to do the CRUD operations
(Create, Read, Update, Delete)- Eliminating the use of additional message layer such as SOAP
or session maintaining cookies- Simplicity is beauty• RSS and Atom- Web content publishing- Publish “feed”; Subscribe and read- Aggregating
Portal technologies – Web 2.0
• Mashup- Data from multiple sources- Mingle and combine- Presented in a new perspective
Site ASite A Site BSite B Site CSite C
Web ServiceWeb Service
Web ClientWeb Client
Portal technologies – Web 2.0
• Mashup applied to JavaScript Grid Portal- Shows mashup happens both in server side and client side
Teragrid Host ATeragrid Host A Teragrid Host BTeragrid Host B Teragrid REST Info service
Teragrid REST Info service
JavaScript CoG Kit serviceJavaScript CoG Kit service
JavaScript API & PortalJavaScript API & Portal
Portal approaches – a comparison
• JSR168 Portal– Generate markup
segments for each portlet and assembly them into a full page
– Info aggregated at server side
– Portlets displayed separately
– Relatively old technology and is to be replaced with newer standard (JSR286)
• Web 2.0 Portal– Combine raw data from
different site/web services– Content aggregation can
happen in server side or client side
– Could combine data from different source and present in a totally new way
– Web 2.0 technologies used to provide better user experience
A Web 2.0 Grid portal and reusable JavaScript CoG Kit
• Multi-tier SOA based framework• Grid services are exposed through JavaScript
library in client side for those web based Grid application developers• A generic purpose Grid portal built upon the
JavaScript CoG Kit enable access to Teragrid through web browser
System architecture
JavaScript Library enables Grid access
• JavaScript library to consume Java based web services while providing a higher level abstraction for web based Grid application developers
• JavaDoc style documentation-
https://lily01.rit.edu:8443/grid/jscogdoc/jsdoc/index.html
- Subject to change since it is still under active development
• Reusable to construct Grid portal or other domain specific scientific gateways upon it
The portal
Teragrid Information services
Job Management
File Transfer
Conclusions and Discussion
• Road to Grid- Abstraction and reuse- More user-friendly and lower barrier- Less user involved setup and configuration- Architecture gets more complicated- Hide more complexity behind the “cloud”• Trends- Service Oriented Architecture (SOA) / Web services- Software As A Service (SAAS)- Web application / Rich Internet Application- Cloud• Discussion?
• http://www.cyberaide.org• [email protected]
Thanks!
Any questions?
References• Java CoG Kit. http://www.cogkit.org/• Globus Toolkit. http://www.globus.org/toolkit/• JSR 168: Portlet Specification. http://www.jcp.org/en/jsr/detail?id=168• OASIS Web Services for Remote Portlets (WSRP).
http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=wsrp• Myrit portal. http://my.rit.edu• Teragrid user portal. http://www.teragrid.org• Gridsphere portal framework. http://www.gridsphere.org/• The Open Grid Computing Environments Portal and Gateway Toolkit (OGCE
Portal). http://www.collab-ogce.org/• D. Gannon, J. Alameda, O. Chipara, M. Christie, V. Dukle, L. Fang, M. Farrellee,
G. Kandaswamy, D. Kodeboyina, S. Krishnan, C. Moad, M. Pierce, B. Plale, A. Rossi, Y. Simmhan, A. Sarangi, A. Slominski, S. Shirasuna, and T. Thomas, "Building grid portal applications from a web service component architecture," Proceedings of the IEEE, vol. 93, no. 3, pp. 551-563, 2005. [Online]. Available: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1398010
References – cont’d• Thomas, M., Burruss, J., Cinquini, L., Fox, G., Gannon, D., Glilbert, I.,
von Laszewski, G., Jackson, K., Middleton, D., Moore, R., Pierce, M., Plale, B., Rajasekar, A., Regno, R., Roberts, E., Schissel, D., Seth, A., Schroeder, W.: Grid portal architectures for scientific applications. J. Phys. 16, 596–600 (2005)
• R. Barbera, A. Falzone, A. Rodolico: “The GENIUS Grid Portal”, Computing in High Energy and Nuclear Physics, 24-28 March 2003, La Jolla, California
• Anand Natrajan, Anh Nguyen-Tuong, Marty A. Humphrey and Andrew S. Grimshaw, “The Legion Grid Portal”, Concurrency and Computation: Practice and Experience Vol. 14, Grid Computing environments Special Issue 13-14, 2002.
• G. Singh, E. Deelman, G. Mehta, K. Vahi, M. Su, B. Berriman, J. Good, J. Jacob, D. Katz, A. Lazzarini, K. Blackburn, S. Koranda, "The Pegasus Portal: Web Based Grid Computing", The 20th Annual ACM Symposium on Applied Computing, Santa Fe, NM, Mar. 13 -17, 2005.