Class: Smith::Commands::Pop
- Inherits:
-
Smith::CommandBase
- Object
- Smith::CommandBase
- Smith::Commands::Pop
- Defined in:
- lib/smith/commands/smithctl/pop.rb
Instance Attribute Summary
Attributes inherited from Smith::CommandBase
Instance Method Summary collapse
Methods inherited from Smith::CommandBase
#banner, #format_help, #initialize, #parse_options
Methods included from Logger
Constructor Details
This class inherits a constructor from Smith::CommandBase
Instance Method Details
#execute ⇒ Object
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# File 'lib/smith/commands/smithctl/pop.rb', line 7 def execute pop end |
#pop ⇒ Object
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# File 'lib/smith/commands/smithctl/pop.rb', line 11 def pop case target.size when 0 "No queue specified. Please specify a queue." when 1 queue = target.first Messaging::Queue.(queue) do |queue_length| # Number of messages on the queue. number_to_remove = ([:number] > queue_length) ? queue_length : [:number] Messaging::Receiver.new(queue, :auto_ack => false, :prefetch => number_to_remove, :passive => true) do |receiver| receiver.on_error do |ch,channel_close| case channel_close.reply_code when 404 responder.succeed("Queue does not exist: #{queue}") else responder.succeed("Unknown error: #{channel_close.reply_text}") end end worker = proc do |acc, n, iter| receiver.pop do |payload,r| if payload acc[:result] << (payload) if [:print] acc[:count] += 1 if n == number_to_remove - 1 if [:remove] r.ack(true) else r.reject(:requeue => true) end end end iter.return(acc) end end finished = proc do |acc| logger.debug { "Removing #{acc[:count]} message from #{receiver.queue_name}" } responder.succeed(acc[:result].join("\n")) end EM::Iterator.new(0...number_to_remove).inject({:count => 0, :result => [], :ack => nil}, worker, finished) end end else "You can only specify one queue at a time" end end |