Class: CurrentCostDaemon::Publishers::Http::Servlet

Inherits:
WEBrick::HTTPServlet::AbstractServlet
  • Object
show all
Defined in:
lib/currentcostd/publishers/http.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.update(reading) ⇒ Object 



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# File 'lib/currentcostd/publishers/http.rb', line 87

def self.update(reading)
  @@reading = reading
  @@updated_at = Time.now
  # Add all channels to get real total
  @@total = @@reading.total_watts
  # Store history if available
  @@history = @@reading.history if @@reading.history
end

Instance Method Details

#do_GET(request, response) ⇒ Object 



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# File 'lib/currentcostd/publishers/http.rb', line 36

def do_GET(request, response)
  if request.query['format'].nil? || request.query['format'] == "html"
    response.status = 200
    response['Content-Type'] = "text/html"
    response.body = "
<html>
  <head>
    <meta http-equiv='refresh' content='6' />
    <meta name='viewport' content='width=420'/> 
  </head>
  <body>
    <div style='float:right'>
      <a title='EEML' href='/?format=eeml'><span style='border:1px solid;border-color:#9C9 #030 #030 #696;padding:0 3px;font:bold 10px verdana,sans-serif;color:#FFF;background:#090;text-decoration:none;margin:0;'>EEML</span></a>
      <a title='XML' href='/?format=xml'><span style='border:1px solid;border-color:#FC9 #630 #330 #F96;padding:0 3px;font:bold 10px verdana,sans-serif;color:#FFF;background:#F60;text-decoration:none;margin:0;'>XML</span></a>
    </div>
    <h1>#{@@total} Watts</h2>
    <p>updated at #{@@updated_at}</p>
    <h2>History</h2>
    <h3>Hourly</h3>
    <img src='http://chart.apis.google.com/chart?cht=lc&chs=400x125&chd=t:#{@@history[:hours].reverse.delete_if{|x|x.nil?}.join(',')}&chds=0,#{@@history[:hours].delete_if{|x|x.nil?}.max}'/>
    <h3>Daily</h3>
    <img src='http://chart.apis.google.com/chart?cht=lc&chs=400x125&chd=t:#{@@history[:days].reverse.map{|x| x.nil? ? 0 : x[0]}.join(',')}&chds=0,#{@@history[:days].delete_if{|x|x.nil?}.max}'/>
    <h3>Monthly</h3>
    <img src='http://chart.apis.google.com/chart?cht=lc&chs=400x125&chd=t:#{@@history[:months].reverse.map{|x| x.nil? ? 0 : x[0]}.join(',')}&chds=0,#{@@history[:months].delete_if{|x|x.nil?}.max}'/>
    <h3>Yearly</h3>
    <img src='http://chart.apis.google.com/chart?cht=lc&chs=400x125&chd=t:#{@@history[:years].reverse.map{|x| x.nil? ? 0 : x[0]}.join(',')}&chds=0,#{@@history[:years].delete_if{|x|x.nil?}.max}'/>
  </body>
</html>"
  elsif request.query['format'] == "eeml"
    # Create EEML document
    eeml = EEML::Environment.new
    # Create data object
    data = EEML::Data.new(0)
    data.unit = EEML::Unit.new("Watts", :symbol => 'W', :type => :derivedSI)
    eeml << data
    eeml[0].value = @@total
    eeml.updated_at = @@updated_at
    response.status = 200
    response['Content-Type'] = "text/xml"
    response.body = eeml.to_eeml
  elsif request.query['format'] == "xml"
    response.status = 200
    response['Content-Type'] = "text/xml"
    # Create XML
    xml = Builder::XmlMarkup.new
    xml.instruct!
    response.body = xml.currentcost { xml.watts @@total }
  else
    response.status = 400
  end
end