Code Elevator

This project is a live coding contest. More info here.

Rules

The goal of the game is to implement an elevator engine. Participants have to subscribe with a login, an email (in order to display a linked gravatar) and a server url. Then HTTP GET requests will be send to this server :

events (just respond HTTP 200 return code)

• /call?atFloor=[0-5]&to=[UP|DOWN]
• /go?floorToGo=[0-5]
• /userHasEntered
• /userHasExited
• /reset?cause=information+message

response

• /nextCommand : body of the request must contains NOTHING, UP, DOWN, OPEN or CLOSE

Running the server locally

Prerequisites

Here is what you need to build and run a code elevator session :

• JDK 1.8
• maven 3.x

Steps

Simple start with Docker

$ git clone git@github.com:xebia-france/code-elevator.git
$ cd code-elevator
$ ./build.sh
$ ./run.sh

Building yourself with maven

$ git clone git@github.com:xebia-france/code-elevator.git
$ cd code-elevator
$ mvn clean install
$ mvn --file elevator-server/pom.xml jetty:run [-DADMIN_PASSWORD=secret]

Note : if you need to change the port because your port 8080 is already used, you can start it instead with :

$ mvn --file elevator-server/pom.xml jetty:run -Djetty.port=8086 [-DADMIN_PASSWORD=secret] 

Go to http://localhost:8080, subscribe to a session and start implementing your elevator server.

If you run a public session you may modify admin password by starting server with system property ADMIN_PASSWORD. You can also control max number of users per building which is three at first or kick out some subscribers when going to http://localhost:8080/#/administration.

Export / Import users

When you redeploy the application, all users are lost in the operation. You can then save all users and re-import after redeployment.

• export

  $ curl --basic --user :secret --url http://localhost:8080/resources/players.csv > players.csv

Csv is user email, user login, server url and score:

"foo@exemple.org","Foo","http://exemple.org:8081/elevator-participant/",4242
"foo@exemple.org","Duplicate Foo","http://exemple.org:8081/elevator-participant/",0
"bar@exemple.org","Bar","http://exemple.org",666

• import

  $ curl --basic --user :secret --url http://localhost:8080/resources/players.csv --form players=@players.csv > uploadResult.txt

Upload result is a json file where the key is the user email and the value is the import result. Import is successful when the password is defined:

{
  "foo@exemple.org":["password","a game with player foo@exemple.org has already been added"],
  "bar@exemple.org":["password"]
}