cyberaide javascript: a javascript commodity grid kit gregor von laszewski [email protected],...

Cyberaide JavaScript: A JavaScript Commodity Grid Kit

Gregor von [email protected], (585) 298 5285

Fugang Wanghttp://www.cyberaide.org

http://cyberaide.orghttp://cyberaide.orghttp://cyberaide.orghttp://cyberaide.org 1104/18/2304/18/23

Outline

• Approaches to access the 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 discussion04/18/2304/18/2304/18/2304/18/23 http://cyberaide.orghttp://cyberaide.orghttp://cyberaide.orghttp://cyberaide.org 22

Approaches to Access Grid

• Grid Infrastructure- Condor, PBS, LSF, SGE- Globus, UNICORE, EGEE

• Upperware– Workflow tools with GUIs

• Many use cogkit.org– Portals

• Teragrid portal, Gridsphere, OGCE• Many of them use cogkit.org

• Middleware/Upperware- CoG Kit (cogkit.org)- Cyberaide.org Gridshell (cyberaide.org)

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Portal technologies – JSR168


• Java Portlet Specification (JSR168)Portlets

ContainerPortlets

Container

LoginLogin

InfoInfo

FAQFAQ

WelcomeWelcome

Server

Portlet Window

Portlet Fragment

Portal ServerPortal 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



……

• 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



• 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



• 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



• 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 enhanced by 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

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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: Mimics a Desktop


Teragrid Information Services


Job Management


File Transfer


Cyberaide.org


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


Thanks!

Any questions?

[email protected]

585 298 5285 (Gregor)


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.


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