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server.rb
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server.rb
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require 'sinatra/base'
require 'erb'
require 'resque'
require 'resque/version'
require 'time'
module Resque
class Server < Sinatra::Base
dir = File.dirname(File.expand_path(__FILE__))
set :views, "#{dir}/server/views"
set :public, "#{dir}/server/public"
set :static, true
helpers do
include Rack::Utils
alias_method :h, :escape_html
def current_section
url_path request.path_info.sub('/','').split('/')[0].downcase
end
def current_page
url_path request.path_info.sub('/','')
end
def url_path(*path_parts)
[ path_prefix, path_parts ].join("/").squeeze('/')
end
alias_method :u, :url_path
def path_prefix
request.env['SCRIPT_NAME']
end
def class_if_current(path = '')
'class="current"' if current_page[0, path.size] == path
end
def tab(name)
dname = name.to_s.downcase
path = url_path(dname)
"<li #{class_if_current(path)}><a href='#{path}'>#{name}</a></li>"
end
def tabs
Resque::Server.tabs
end
def redis_get_size(key)
case Resque.redis.type(key)
when 'none'
[]
when 'list'
Resque.redis.llen(key)
when 'set'
Resque.redis.scard(key)
when 'string'
Resque.redis.get(key).length
when 'zset'
Resque.redis.zcard(key)
end
end
def redis_get_value_as_array(key, start=0)
case Resque.redis.type(key)
when 'none'
[]
when 'list'
Resque.redis.lrange(key, start, start + 20)
when 'set'
Resque.redis.smembers(key)[start..(start + 20)]
when 'string'
[Resque.redis.get(key)]
when 'zset'
Resque.redis.zrange(key, start, start + 20)
end
end
def show_args(args)
Array(args).map { |a| a.inspect }.join("\n")
end
def worker_hosts
@worker_hosts ||= worker_hosts!
end
def worker_hosts!
hosts = Hash.new { [] }
Resque.workers.each do |worker|
host, _ = worker.to_s.split(':')
hosts[host] += [worker.to_s]
end
hosts
end
def partial?
@partial
end
def partial(template, local_vars = {})
@partial = true
erb(template.to_sym, {:layout => false}, local_vars)
ensure
@partial = false
end
def poll
if @polling
text = "Last Updated: #{Time.now.strftime("%H:%M:%S")}"
else
text = "<a href='#{u(request.path_info)}.poll' rel='poll'>Live Poll</a>"
end
"<p class='poll'>#{text}</p>"
end
end
def show(page, layout = true)
response["Cache-Control"] = "max-age=0, private, must-revalidate"
begin
erb page.to_sym, {:layout => layout}, :resque => Resque
rescue Errno::ECONNREFUSED
erb :error, {:layout => false}, :error => "Can't connect to Redis! (#{Resque.redis_id})"
end
end
def show_for_polling(page)
content_type "text/html"
@polling = true
show(page.to_sym, false).gsub(/\s{1,}/, ' ')
end
# to make things easier on ourselves
get "/?" do
redirect url_path(:overview)
end
%w( overview workers ).each do |page|
get "/#{page}.poll" do
show_for_polling(page)
end
get "/#{page}/:id.poll" do
show_for_polling(page)
end
end
%w( overview queues working workers key ).each do |page|
get "/#{page}" do
show page
end
get "/#{page}/:id" do
show page
end
end
post "/queues/:id/remove" do
Resque.remove_queue(params[:id])
redirect u('queues')
end
get "/failed" do
if Resque::Failure.url
redirect Resque::Failure.url
else
show :failed
end
end
post "/failed/clear" do
Resque::Failure.clear
redirect u('failed')
end
post "/failed/requeue/all" do
Resque::Failure.count.times do |num|
Resque::Failure.requeue(num)
end
redirect u('failed')
end
get "/failed/requeue/:index" do
Resque::Failure.requeue(params[:index])
if request.xhr?
return Resque::Failure.all(params[:index])['retried_at']
else
redirect u('failed')
end
end
get "/failed/remove/:index" do
Resque::Failure.remove(params[:index])
redirect u('failed')
end
get "/stats" do
redirect url_path("/stats/resque")
end
get "/stats/:id" do
show :stats
end
get "/stats/keys/:key" do
show :stats
end
get "/stats.txt" do
info = Resque.info
stats = []
stats << "resque.pending=#{info[:pending]}"
stats << "resque.processed+=#{info[:processed]}"
stats << "resque.failed+=#{info[:failed]}"
stats << "resque.workers=#{info[:workers]}"
stats << "resque.working=#{info[:working]}"
Resque.queues.each do |queue|
stats << "queues.#{queue}=#{Resque.size(queue)}"
end
content_type 'text/html'
stats.join "\n"
end
def resque
Resque
end
def self.tabs
@tabs ||= ["Overview", "Working", "Failed", "Queues", "Workers", "Stats"]
end
end
end