Represents a method and meta-data for handling an event

Methods
C
N
Class Public methods
new(method, conditions = {})

Source: show 

# File lib/net/yail/handler.rb, line 6
def initialize(method, conditions = {})
  @method = method

  # Make sure even an explicit nil is turned into an empty hash
  @conditions = conditions || {}
end
Instance Public methods
call(event)

Calls the handler with the given arguments if the conditions are met

Source: show 

# File lib/net/yail/handler.rb, line 14
def call(event)
  # Get out if :if/:unless aren't met
  return if @conditions[:if] && !condition_check(@conditions[:if], event)
  return if @conditions[:unless] && condition_check(@conditions[:unless], event)

  return @method.call(event)
end
condition_check(condition, event)

Checks the condition. Procs are simply run and returned, while Hash-based conditions return true if value === event.send(key)

Source: show 

# File lib/net/yail/handler.rb, line 24
def condition_check(condition, event)
  # Procs are the easiest to evaluate
  return condition.call(event) if condition.is_a?(Proc)

  # If not a proc, condition must be a hash - iterate over values.  All must be true to
  # return true.
  for (key, value) in condition
    return false unless value === event.send(key)
  end
  return true
end