Class: Carnivore::Utils::MessageRegistry

Inherits:

Object

• Object
• Carnivore::Utils::MessageRegistry

show all

Defined in:

lib/carnivore/utils/message_registry.rb

Overview

Instance Method Summary (collapse)

• - (MessageRegistry) initialize constructor

  Create new instance.

• - (self) push(item)

  Register checksum into registry.

• - (String) sha(thing)

  Generate checksum for given item.

• - (TrueClass, FalseClass) valid?(message)

  Validity of message (not found within registry).

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# File 'lib/carnivore/utils/message_registry.rb', line 8

def initialize
  @store = []
  @size = 100
end

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# File 'lib/carnivore/utils/message_registry.rb', line 30

def push(item)
  @store.push(item)
  if(@store.size > @size)
    @store.shift
  end
  self
end

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# File 'lib/carnivore/utils/message_registry.rb', line 42

def sha(thing)
  unless(thing.is_a?(String))
    thing = MultiJson.dump(thing)
  end
  (Digest::SHA512.new << thing).hexdigest
end

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# File 'lib/carnivore/utils/message_registry.rb', line 17

def valid?(message)
  checksum = sha(message)
  found = @store.include?(checksum)
  unless(found)
    push(checksum)
  end
  !found
end