Zusaarから申込者のアイコンをダウンロードし、座席表用のアカウントつき画像を作成する座席表職人のためのGroovyスクリプト

Zusaar.groovy

import groovy.json.JsonSlurper
import groovy.swing.j2d.*
import javax.imageio.*;

if (!args || args.size() !=1) {
    println "usge:groovy Zusaar.groovy http://www.zusaar.com/event/XXXXXX"
    System.exit(1)
}
def eventID = ""
(args[0] =~ (/(?<=http:\/\/www.zusaar.com\/event\/).*/)).each{
        eventID = it
}
assert eventID.isNumber() == true

def eventUrl = "http://www.zusaar.com/api/event/user/?event_id=${eventID}".toURL()
def parser = new JsonSlurper()
def json = parser.parseText(eventUrl.text)
assert json.size() != 0
assert json.event.users.nickname[0].size() != 0

def listFile = new File("list.txt").newWriter()
json.event.users.nickname[0].each{
    assert it.getClass() == String
    def id = it
    def imgUrl = "http://usericons.relucks.org/twitter/${id}"

    try {
        img = ImageIO.read(imgUrl.toURL())
        gr = new GraphicsRenderer()
        gr.renderToFile("@${id}.png", img.width + 100, img.height + 20){
            antialias("on")
            image(image: img, x:0,y:0)
            font(new java.awt.Font('Tahoma', java.awt.Font.BOLD, 15))
            text( x:0, y:img.height + 5, text: "@${id}", borderColor: no, fill: 'blue')
        }
    } catch (Exception e) {
        listFile.writeLine("\t${id} 例外発生：" + e)
    }
    listFile.writeLine("[twitter:@${id}]")
}
listFile.close()