Class: Hutch::Adapters::BunnyAdapter

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Includes:
Logging
Defined in:
lib/hutch/adapters/bunny.rb

Constant Summary collapse

DEFAULT_VHOST = 
Bunny::Session::DEFAULT_VHOST
ConnectionRefused = 
Bunny::TCPConnectionFailed
ChannelAlreadyClosed = 
Bunny::ChannelAlreadyClosed
PreconditionFailed = 
Bunny::PreconditionFailed

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Logging

logger, #logger, logger=, setup_logger

Constructor Details

#initialize(opts = {}) ⇒ BunnyAdapter

Returns a new instance of BunnyAdapter.



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# File 'lib/hutch/adapters/bunny.rb', line 20

def initialize(opts={})
  @connection = Bunny.new(opts)
end

Class Method Details

.decode_message(delivery_info, properties, payload) ⇒ Object 



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# File 'lib/hutch/adapters/bunny.rb', line 24

def self.decode_message(delivery_info, properties, payload)
  [delivery_info, properties, payload]
end

.new_exchange(ch, exchange_type, exchange_name, exchange_options) ⇒ Object 



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# File 'lib/hutch/adapters/bunny.rb', line 56

def self.new_exchange(ch, exchange_type, exchange_name, exchange_options)
  Bunny::Exchange.new(ch, exchange_type, exchange_name, exchange_options)
end

Instance Method Details

#current_timestamp ⇒ Object 



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# File 'lib/hutch/adapters/bunny.rb', line 52

def current_timestamp
  Time.now.to_i
end

#install_channel_recovery(ch) ⇒ Object 



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# File 'lib/hutch/adapters/bunny.rb', line 36

def install_channel_recovery(ch)
  # A consumer timeout invalidates the delivery tag, so a handler that
  # was still running acknowledges an unknown tag and closes the channel.
  ch.on_error do |channel, close|
    next unless close.delivery_ack_timeout? || close.unknown_delivery_tag?

    begin
      channel.reopen
      recover_channel_topology(channel)
      logger.warn "recovered consumer channel closed with '#{close.reply_text}'"
    rescue => ex
      logger.error "channel recovery failed: #{ex.class}: #{ex.message}"
    end
  end
end

#prefetch_channel(ch, prefetch) ⇒ Object 



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# File 'lib/hutch/adapters/bunny.rb', line 28

def prefetch_channel(ch, prefetch)
  ch.prefetch(prefetch) if prefetch
end

#queue_exists?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hutch/adapters/bunny.rb', line 32

def queue_exists?(name)
  @connection.queue_exists?(name)
end