Class: Droonga::AdapterRunner

Inherits:
Object
  • Object
show all
Defined in:
lib/droonga/adapter_runner.rb

Instance Method Summary collapse

Constructor Details

#initialize(dispatcher, plugins) ⇒ AdapterRunner

Returns a new instance of AdapterRunner.



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# File 'lib/droonga/adapter_runner.rb', line 23

def initialize(dispatcher, plugins)
  @dispatcher = dispatcher
  default_plugins = ["error"]
  plugins += (default_plugins - plugins)
  @adapter_classes = Adapter.find_sub_classes(plugins)
end

Instance Method Details

#adapt_input(message) ⇒ Object 



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# File 'lib/droonga/adapter_runner.rb', line 33

def adapt_input(message)
  $log.trace("#{log_tag}: adapt_input: start",
             :dataset => message["dataset"],
             :type => message["type"])
  adapted_message = message
  adapted_message["appliedAdapters"] = []
  @adapter_classes.each do |adapter_class|
    adapter_class_id = adapter_class.id
    pattern = adapter_class.message.input_pattern
    if pattern
      matcher = MessageMatcher.new(pattern)
      $log.trace("#{log_tag}: adapt_input: skip: #{adapter_class_id}",
                 :pattern => pattern)
      next unless matcher.match?(adapted_message)
    end
    $log.trace("#{log_tag}: adapt_input: use: #{adapter_class_id}")
    input_message = InputMessage.new(adapted_message)
    adapter = adapter_class.new
    adapter.adapt_input(input_message)
    adapted_message = input_message.adapted_message
    adapted_message["appliedAdapters"] << adapter_class_id
  end
  $log.trace("#{log_tag}: adapt_input: done",
             :dataset => adapted_message["dataset"],
             :type => adapted_message["type"])
  adapted_message
end

#adapt_output(message) ⇒ Object 



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# File 'lib/droonga/adapter_runner.rb', line 61

def adapt_output(message)
  $log.trace("#{log_tag}: adapt_output: start",
             :dataset => message["dataset"],
             :type => message["type"])
  adapted_message = message
  applied_adapters = adapted_message["appliedAdapters"]
  @adapter_classes.reverse_each do |adapter_class|
    adapter_class_id = adapter_class.id
    if applied_adapters
      $log.trace("#{log_tag}: adapt_output: skip: #{adapter_class_id}: " +
                 "input adapter wasn't applied",
                 :applied_adapters => applied_adapters)
      next unless applied_adapters.include?(adapter_class.id)
    end
    pattern = adapter_class.message.output_pattern
    if pattern
      matcher = MessageMatcher.new(pattern)
      $log.trace("#{log_tag}: adapt_output: skip: #{adapter_class_id}",
                 :pattern => pattern)
      next unless matcher.match?(adapted_message)
    end
    $log.trace("#{log_tag}: adapt_output: use: #{adapter_class_id}")
    output_message = OutputMessage.new(adapted_message)
    adapter = adapter_class.new
    adapter.adapt_output(output_message)
    adapted_message = output_message.adapted_message
  end
  $log.trace("#{log_tag}: adapt_output: done",
             :dataset => adapted_message["dataset"],
             :type => adapted_message["type"])
  adapted_message
end

#shutdown ⇒ Object 



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# File 'lib/droonga/adapter_runner.rb', line 30

def shutdown
end