• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Gnizr Feed

Gnizr Feed



Final presentation for the gnizr-feed fork of Gnizr. More info here: http://code.google.com/p/gnizr-feed/

Final presentation for the gnizr-feed fork of Gnizr. More info here: http://code.google.com/p/gnizr-feed/



Total Views
Views on SlideShare
Embed Views



1 Embed 1

http://www.linkedin.com 1



Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
Post Comment
Edit your comment
  • Paul: Hi, I’m Paul Swenson Alice: I’m Alice Carback Somebody: Our project is Gnizr-Feed!

Gnizr Feed Gnizr Feed Presentation Transcript

  • gnizr-feed
    • University of Maryland, Baltimore County
    • CMSC 691S/491S
    • Paul Swenson
    • Alice Carback
  • Presentation Agenda
    • Project Selection
      • Project Idea
      • Considerations
    • Plan and Design
      • Project Goals
      • Initial Prototype
      • Simplified View of Database
    • Implementation Details
      • Core Gnizr Mods
      • Backend
      • Frontend
    • Complications / Known Issues
    • Conclusions
      • Lessons Learned
      • Future Work
  • Project Selection Alice Carback
  • Project Idea #1
    • Create a News Feed feature for gnizr
    • Level of Challenge: 4
    • Develop a new “Community” page that displays the latest user activities in a News Feed page similar which featured in Facebook. User activities may include events such as editing bookmarks and tags, changing bookmarks’ geotags and subscribing to new RSS feeds.
  • Considerations
    • Do you want to introduce social networking capability?
    • Do you want to provide certain privacy protection feature?
    • How can you effective arrange the display of similar information, so that the News Feed page will not look too cluttered?
  • Plan and Design Alice Carback
  • Project Goals
    • Create a feed feature similar to the one on the Facebook homepage that provides community members with an overview of the latest activity
    • Users should be able to see
      • Bookmark postings
      • Feed subscriptions
      • Folder modifications
      • New tags and users
  • Initial Prototype
    • gnizr-feed mockup
  • Simplified View of Database
    • these are the tables we looked at using
  • Implementation Details Paul Swenson
  • Core Gnizr Modifications
    • Added created_on field to tag table
    • Updated createTag stored procedure to set created_on field to NOW() when tag created
    • Added newsfeed to the tab bar by editing gnizr-ui-menu.properties
    • Overloaded gnizr-config.xml with a custom version to change database name + db authentication
  • Backend
    • Created class for handling data (FeedItem)
      • Uses customized DAO (FeedDao/FeedDBDao) to collect data
      • Process data for output
      • Send data to template
    • Stored procedures rather than raw SQL
    • Still used most of Gnizr: changed only as needed
    • Worked around having to modify other Dao objects by creating a single custom Dao to encapsulate new functionality
  • Frontend
    • Reused gnizr icon graphics
    • Added feed action as community page
    • Feed page output had two stages
      • Output every “event” on its own line
      • Clump time-similar “events” for cleaner look
    • Clean, readable design
  • Frontend - 2
    • FeedAction class is leveraged multiple times
      • Used to provide data to main gnizr-feed FTL (via FeedDao)
      • Used to provide data to RSS gnizr-feed FTL (also via FeedDao)
  • Complications Paul Swenson
  • Known Issues - 1
    • Common issues that we also encountered:
      • Learning curve for frameworks
      • Properly using external resources folder
      • Initial database username/password
      • Documentation spread out among a number of different web sites, not always clear where to go for help
  • Known Issues - 2
    • Set up Tomcat on personal server
      • Directions provided mostly for running on Windows via Eclipse
    • Environment issues: Linux vs. Windows
      • Some configurations were different
    • “ Knowing” Java not a sufficient pre-requisite, requires in-depth knowledge of Maven build chain, Spring and WebWork frameworks
  • Conclusions Paul Swenson
  • Lessons Learned
    • Gnizr has many interesting features
    • Take your time to learn the frameworks
    • Schedule enough time to meet for the project
    • Difficult to see potential without people
  • Future Work (gnizr-feed 1.1!)
    • Given more time, we would enhance gnizr-feed with the following improvements:
    • Better (smarter) output
      • number limit of results
      • better grouping of result types
    • Privacy settings
    • More social features (friends, fans, comments, etc)
    • Prettier, better commented code
    • Eliminate hardcoded values, store configuration settings in an xml file that users can overload/edit
  • Demo!!! + Questions??? Paul Swenson + Alice Carback