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https://github.com/opencoweb/coweb

Open Cooperative Web Framework
https://github.com/opencoweb/coweb

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Open Cooperative Web Framework

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README 

        
==============================

Open Cooperative Web Framework

==============================



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** *This project is no longer maintained and provided as is.* **

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:Homepage: https://github.com/opencoweb/coweb/wiki

:Project page: http://dojofoundation.org/projects/opencoweb

:Code: https://github.com/opencoweb/coweb

:Documentation: http://opencoweb.org/ocwdocs

:User group: https://groups.google.com/group/opencoweb

:Dev group: https://groups.google.com/group/opencoweb-dev

:IRC: #coweb on irc.freenode.net



What is it?

===========



The Open Cooperative Web Framework enables the creation of *cooperative web

applications* featuring concurrent real-time interactions among remote users

and external data sources. The framework handles remote notification of user

changes, the resolution of conflicting changes, and convergence of application

state with minimal information from the application.



The current implementation of the framework is based on open web technologies

such as `AMD `_,

`Bayeux `_, and

`WebSockets `_. The framework includes:



* A JavaScript API for sending and receiving coweb events

* An JavaScript *operation engine* using `operational transformation

  `_ to ensure shared

  state convergence

* A Python coweb server built on the `Tornado `_

  web framework

* A Java coweb server built on the `CometD `_ Java library

* API documentation, tutorials, and examples



Getting Started

===============



Read the the framework documentation online at http://opencoweb.org/ocwdocs. It

includes tutorials on how to obtain the coweb package from Maven Central or PyPI

and write your first cooperative web application. 



Send mail to the coweb users group or join us on IRC if you're having trouble.



Developer setup

~~~~~~~~~~~~~~~



For developers seeking to develop this project directly, see

https://github.com/opencoweb/coweb/wiki/Developer-Setup.



Status

======



Tagged revisions in the *master* branch are our stable releases. The docs at

http://opencoweb.org/ocwdocs match the latest stable release.



The *opencoweb/coweb/master* branch on GitHub contains the framework code

progressing toward the next stable release. We increment the version number in

the code immediately after tagging a stable release so it reflects our next

intended stable version.



The *opencoweb/cowebx/master* branch on GitHub contains example applications

and widgets using the framework. We do not plan to make stable releases of the

examples. Instead we will attempt to keep them working with all versions of the

framework version 0.4 or higher.



All APIs are subject to change until we hit a v1.0 milestone.



Support

=======



Currently, the JavaScript portions of the coweb framework should work in the

following browsers.



* Firefox 3.5+

* Safari 4+

* Chrome

* IE8+

* Opera 10.50+

* Mobile Safari on iOS 4+

* Android Browser 1.6+



For our Java coweb server, we support any environment that can run a Java

Servlet 3.0 compliant container (e.g., Jetty, Tomcat). For the Python server,

we support any environment where Tornado can operate.



Please report an issue on GitHub if you have trouble in one of these browsers or

server environments.



License

=======



Copyright (c) The Dojo Foundation 2011. All Rights Reserved.



Copyright (c) IBM Corporation 2008, 2011. All Rights Reserved.



See the LICENSE file for the terms of the OpenCoweb dual BSD/AFL license.



Packaged builds of the OpenCoweb JavaScript framework located in

coweb/js/release include third-party code that is not covered under the

OpenCoweb License. See the NOTICES file for details of these dependencies.



Contributing

============



The Open Cooperative Web Framework is a

`Dojo Foundation project `_, and

as such follows the `contribution directives of the

Dojo Foundation `_. Please read

them if you wish to contribute. If you agree to their terms, feel free to fork

our code and send us pull requests on GitHub.



Credits

=======



This open source project derives from a broader IBM cooperative web project. The

initial IBM contribution includes efforts from the following people:



Bill Abt, Krishna Akella, Hisatoshi Adachi, David Boloker,

`Paul Bouchon `_,

`Brian Burns `_,

`Bryce Curtis `_, Andrew Donoho,

`Dan Gisolfi `_, Wing Lee,

`Peter Parente `_, Aaron Reed,

`Roger Que `_, Sonal Starr,

`Michael Stewart `_, Wayne Vicknair, Royce

Walter, Peter Westerink



Additional contributions made to the project under the Dojo Foundation come from

the following people:



`Richard Backhouse `_,

`Nick Fitzgerald `_



References

==========



The operational transformation algorithm used in the framework is based on

various lines of research, such as: 



* \C. Sun, "Operational Transformation Frequently Asked Questions and Answers"

  2010. [Online]. Available: http://cooffice.ntu.edu.sg/otfaq/

* \D. Sun and C. Sun: "Context-based Operational Transformation in Distributed

  Collaborative Editing Systems," in IEEE Transactions on Parallel and

  Distributed Systems, Vol. 20, No. 10, pp. 1454 – 1470, Oct. 2009.

* \D. Sun and C. Sun, "Operation context and context-based operational

  transformation," in CSCW '06: Proceedings of the 2006 20th anniversary

  conference on Computer supported cooperative work. New York, NY, USA: ACM

  Press, 2006, pp. 279-288. [Online]. Available:

  http://dx.doi.org/10.1145/1180875.1180918

* \D. Sun, S. Xia, C. Sun, and D. Chen, "Operational transformation for

  collaborative word processing," in CSCW '04: Proceedings of the 2004 ACM

  conference on Computer supported cooperative work. New York, NY, USA: ACM,

  2004, pp. 437-446. [Online]. Available:

  http://dx.doi.org/10.1145/1031607.1031681

* \S. Xia, D. Sun, C. Sun, D. Chen, and H. Shen, "Leveraging single-user

  applications for multi-user collaboration: the coword approach," in CSCW '04:

  Proceedings of the 2004 ACM conference on Computer supported cooperative work.

  New York, NY, USA: ACM, 2004, pp. 162-171. [Online].

  Available: http://dx.doi.org/10.1145/1031607.1031635