Status Report for 03/07/2007 -- 04/04/2007

Progress

1. Workflow for Atom Feed for CIMA Web 2.0

(1) CIMA persons subscribe all the available parameters by Sage on the browser side;

(2) CIMA Client gets the http request and registers a CIMA service;

(3) CIMA Service sends back a parcel with the service information users required;

(4) XML Parser converts the parcel format into Atom Syndication format and writes to Atom Feed;

(5) Send results back to users

2. Detail Design

(1) Install Sage at http://sage.mozdev.org/ (Sage is a lightweight RSS and Atom feed reader extension for Mozilla Firefox);

(2) Make CIMAClientPlatform application run. This application a skeleton application to register with a CIMA service and get data (Parcel) back. In a Parcel, it contains many data, currently, the user needs “SensorName”, “TimeStamp” and “DoubleData”;

(3) In the class src/edu/indiana/extreme/www/cima/channel/sink/Channel_sinkImpl.java,

put some code for parsing Parcel to Atom Syndication format and writes to Atom Feed in the "myHandler" method. The basic steps are shown below:

(a) Read XML data into a DOM;

(b) Configure the Factory;

(c) Instantiate the Factory;

(d) Get a parser and parse the parcel;

(e) Write the data required to Atom Feed;

(4) Copy the Atom Feed to an available URL manually;

(5) On browser side, create a new bookmark in Sage for the Atom Feed just created and Check the feed;

(6) The content/data in the Atom Feed will show on the right panel

Discussion

1. Currently, I manually copied the Atom Feed from hagar.cs.indiana.edu/Web2.0/...... to

http://www.cs.indiana.edu/~ydeng/atomfeedcima.xml, so I am wondering if I need to use some TOMCAT programming to move these files automatically.

2. How often the Sage retrieves the data from the Atom Feed.

Future work

1. The issues described in Discussion section