Philips Hue gets Groovy

My first Groovy script when figuring out how to use the Philips Hue lights.

Details on the Philips Hue Api can be found here.

import groovyx.net.http.*

@Grab(group='org.codehaus.groovy.modules.http-builder',

    module='http-builder', version='0.5.2' )


class HueLamp {
int id 

HueLamp(int id = 1) {
this.id = id
}

def status(boolean on, int hue) {
def base = "http://192.168.2.32/"
def api = "api/newdeveloper/lights/$id/state"
def url = base + api

def http = new HTTPBuilder( url)
http.request( Method.PUT, ContentType.JSON ) { req ->
           body = ["on" : on, "transitiontime" : 1,
                      "hue" : hue, "sat" : 255, "bri" : 255 ]
           response.success = { resp, json ->
println json
           }

           response.failure = { resp ->
println resp
           }
}
}
}

Details on how to use the Groovy Http builder are found here. 

The status method updates the lamp hue. Below an example of looping over different colors:

def hueMax = 65535

def stepSize = (int)hueMax/nrSteps

def hues = (0..25).collect{ it*stepSize }

def lamp = new HueLamp(1)

hues.each{ hue ->

lamp.status(true, hue)

Thread.sleep(100)

}

Interested an need more code? Check out this java/groovy project on Github from Stephan Jaetzold.

Enjoy.