Class: Legion::Extensions::React::RuleEngine

Inherits:
Object
  • Object
show all
Defined in:
lib/legion/extensions/react/rule_engine.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(rules_hash = {}) ⇒ RuleEngine

Returns a new instance of RuleEngine.



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# File 'lib/legion/extensions/react/rule_engine.rb', line 9

def initialize(rules_hash = {})
  @rules = parse_rules(rules_hash)
end

Instance Attribute Details

#rules ⇒ Object (readonly)

Returns the value of attribute rules.



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# File 'lib/legion/extensions/react/rule_engine.rb', line 7

def rules
  @rules
end

Class Method Details

.from_settings ⇒ Object 



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# File 'lib/legion/extensions/react/rule_engine.rb', line 13

def self.from_settings
  rules_hash = if defined?(Legion::Settings) && !Legion::Settings[:react].nil?
                 Legion::Settings.dig(:react, :rules) || {}
               else
                 {}
               end
  new(rules_hash)
rescue StandardError
  new({})
end

Instance Method Details

#match(event) ⇒ Object 



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# File 'lib/legion/extensions/react/rule_engine.rb', line 24

def match(event)
  event_name = event[:event].to_s
  @rules.select do |rule|
    Helpers::EventMatcher.match?(rule[:source], event_name) &&
      Helpers::EventMatcher.evaluate_condition(rule[:condition], event)
  end
end