openbotlist/WEB-INF/jsps/chart/daily_chart.rb

   1 ##\r
   2 ## Berlin Brown\r
   3 ## 4/20/2007\r
   4 ## \r
   5 \r
   6 require 'java'\r
   7 include_class 'org.jfree.chart.ChartUtilities' unless defined? ChartUtilities\r
   8 include_class('java.util.Calendar') { 'JCalendar' } unless defined? JCalendar\r
   9 \r
  10 require File.join(File.dirname(__FILE__), '../../WEB-INF/lib/ruby/util', 'chart_graphics')\r
  11 \r
  12 class DailyChartController\r
  13 \r
  14   def initialize(controller, request, response)\r
  15     @controller = controller\r
  16     @request = request\r
  17     @response = response\r
  18     @dao_visitlog = @controller.userVisitLogDao\r
  19   end\r
  20   \r
  21   def process()\r
  22     \r
  23     d = []\r
  24     (-6..0).each{|i|\r
  25       curCal = JCalendar::getInstance()\r
  26       curCal.add(JCalendar::DATE, i)\r
  27       curStat = @dao_visitlog.getVisitAuditOnDate(curCal)\r
  28       d << curStat\r
  29     }         \r
  30     lineChart = ChartGraphics::LineChart.new(500, 400, d, "")\r
  31     chart = lineChart.renderChart    \r
  32     buf = chart.createBufferedImage(380, 240)\r
  33     out = @response.getOutputStream()\r
  34     ChartUtilities.writeBufferedImageAsPNG(out, buf)\r
  35     out.close()\r
  36   end\r
  37 \r
  38 end\r
  39 \r
  40 DailyChartController.new($controller, $request, $response)\r