Voting Tool

Aus Java Student User Group Austria - Java + JVM in Wien Österreich / Vienna Austria
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This site contains a short overview of the JSUG Voting Tool hosted at googlecode. Its aim is to provide an easy way figuring out which topics are preferred by the members.

General

Technologies used

  • GWT 1.5.3
  • RESTful Webservices
  • PHP 5


Access Sourcecode

You can check out the full source code by:

# anonymous read-only access:
svn checkout http://jsugvoting.googlecode.com/svn/ jsugvoting-read-only 

# project members only:
svn checkout https://jsugvoting.googlecode.com/svn/trunk/ jsugvoting --username <your_name>

Technical Documentation

... kind of ...

Usecases

  • Anonym
    • View Topics
    • Register
    • Login
  • Member
    • Logout
    • Vote
    • Unvote
    • Request Talk
    • Offer Talk
    • Join Talk
  • Admin
    • Edit Topic

Commands/Events

  •  ??? ReloadData
  • Register
  • Login
  • Logout
  • GiveVote
  • RevokeVote
  • RequestTalk
  • OfferTalk
  • JoinTalk

Valueobjects

  • TalkEntity
    • id: long
    • createdOn: timestamp
    • createdBy: User
    • title: String
    • votes: Vote[]
    • tags: Tag[]
    • detail: String
    • link: String // LUXURY // about topic itself
    • thumbnail: image // LUXURY
    • state: Enum {need | offer | next | past}
    • attribute1: String // attributes are state depending (?)
    • attribute2: String
    • attribute3: String
    • attribute4: String
  • VoteEntity
    • topicId: long
    • userId: long
    • createdOn: timestamp
  • UserEntity
    • id: long
    • createdOn: timestamp
    • username: String
    • password: String // SHA-1 encrypted
    • email: String
  • Tag
    • id: long
    • word: String


Protocol

  • describes passed json/xml dataformats
  • mimetypes:
    • application/json
    • application/xml

Overview

  • Request
    • Head
      • Message Version; e.g. "0.1"
      • Message Code (unique for this request/response); e.g. "7"
      • Status Code
    • Body
      • ...

Talk

GET: /users; response:

[
   {
     Id: 1,
     Username: "foo"
   },
   {
     Id: 2,
     Username: "bar"
   }
]

REST

  • /session ... von REST vordefined
    • GET: X
    • PUT: X
    • POST: login
    • DELETE: logout
  • /users
    • GET: list all users
    • PUT: X
    • POST: register new user
    • DELETE: X
  • /talks
    • GET: list all talks
    • PUT: X
    • POST: new talk
    • DELETE: X
  • /talks/{talkId}
    • GET: X (evtl: display talk)
    • PUT: X
    • POST: X
    • DELETE: X (admin: delete talk)
  • /talks/{talkId}/speakers
    • GET: X
    • PUT: X
    • POST: join that talk
    • DELETE: delete yourself
  • /talks/{talkId}/vote
    • GET: X (evtl: returned true/false if yet voted)
    • PUT: X
    • POST: add vote
    • DELETE: unvote

Service API

  • AuthService
    • login(username: String, password: String): boolean
    • logout(): void
    • register(username: String, password: String, email: String): boolean
  • TopicsService
    • ...