Class: Groonga::Command::Parser::LoadValuesParser

Inherits:
Object
  • Object
show all
Defined in:
lib/groonga/command/parser/load-values-parser.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ LoadValuesParser

Returns a new instance of LoadValuesParser.



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# File 'lib/groonga/command/parser/load-values-parser.rb', line 26

def initialize
  @parser = JSON::ResumableParser.new
  @on_value = nil
  @on_consumed = nil
  @on_end = nil
  @n_processed_values = 0
end

Instance Attribute Details

#on_consumed=(value) ⇒ Object (writeonly)

Sets the attribute on_consumed

Parameters:

  • value —

    the value to set the attribute on_consumed to.



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# File 'lib/groonga/command/parser/load-values-parser.rb', line 24

def on_consumed=(value)
  @on_consumed = value
end

#on_end=(value) ⇒ Object (writeonly)

Sets the attribute on_end

Parameters:

  • value —

    the value to set the attribute on_end to.



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# File 'lib/groonga/command/parser/load-values-parser.rb', line 25

def on_end=(value)
  @on_end = value
end

#on_value=(value) ⇒ Object (writeonly)

Sets the attribute on_value

Parameters:

  • value —

    the value to set the attribute on_value to.



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# File 'lib/groonga/command/parser/load-values-parser.rb', line 23

def on_value=(value)
  @on_value = value
end

Instance Method Details

#<<(data) ⇒ Object 



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# File 'lib/groonga/command/parser/load-values-parser.rb', line 34

def <<(data)
  data_size = data.bytesize
  return self if data_size.zero?

  @parser << data
  begin
    done = @parser.parse
  rescue JSON::ParserError => error
    consumed = data_size - @parser.rest.bytesize
    raise Error.new(error.message,
                    data[0, consumed],
                    data[consumed..-1])
  end

  if done
    @parser.value[@n_processed_values..-1].each do |value|
      @on_value.call(value)
    end
    @n_processed_values = 0
  else
    partial_value = @parser.partial_value
    if partial_value
      partial_value[@n_processed_values..-2].each do |value|
        @on_value.call(value)
      end
      @n_processed_values = partial_value.size - 1
    end
  end

  consumed = data.bytesize
  consumed -= @parser.rest.bytesize if done
  if consumed > 0
    if consumed < data_size
      @on_consumed.call(data[0, consumed])
    else
      @on_consumed.call(data)
    end
  end

  if done
    if consumed < data_size
      @on_end.call(data[consumed..-1])
    else
      @on_end.call(nil)
    end
  end

  self
end