Module: Resque::ChangeQueue

Defined in:
lib/resque/change_queue.rb,
lib/resque/change_queue/server.rb,
lib/resque/change_queue/version.rb

Defined Under Namespace

Modules: Server

Constant Summary collapse

VERSION = 
"0.2.0"

Class Method Summary collapse

Class Method Details

.change_queue(from_queue, to_queue, klass, args = []) ⇒ Object 



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# File 'lib/resque/change_queue.rb', line 8

def change_queue(from_queue, to_queue, klass, args = [])
  tmp_queue = "operation:#{SecureRandom.uuid}"
  moved_count = 0
  while job = Resque.pop(from_queue)
    target_queue = tmp_queue
    if job["class"] == klass.to_s && match_args(job["args"], args)
      target_queue = to_queue
      moved_count += 1
    end
    Resque.push(target_queue, job)
  end

  while job = Resque.pop(tmp_queue)
    Resque.push(from_queue, job)
  end

  # Finally ensure queue is removed
  Resque.remove_queue(tmp_queue)
  moved_count
end

.match_args(job_args, criteria_args) ⇒ Object 



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# File 'lib/resque/change_queue.rb', line 46

def match_args(job_args, criteria_args)
  match = true
  criteria_args.each_with_index do |item, index|
    next if item.nil?
    if job_args[index] != item
      match = false
      break
    end
  end
end

.search_jobs(queue, klass, args = [], start = 0, count = 100) ⇒ Object 



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# File 'lib/resque/change_queue.rb', line 29

def search_jobs(queue, klass, args = [], start = 0, count = 100)
  matched_jobs = []
  has_next = true
  while has_next
    page = Resque.peek(queue, start, 100)
    page.each do |job|
      next unless job["class"] == klass.to_s
      matched_jobs << job if match_args(job["args"], args)
      break if matched_jobs.count >= count
    end
    break if matched_jobs.count >= count
    has_next = (page != nil &&  page.count == 100)
    start += 100
  end
  matched_jobs
end