Class: Groonga::QueryLog::Analyzer::SizedGroupedOperations

Inherits:
Array
  • Object
show all
Defined in:
lib/groonga/query-log/analyzer/sized-grouped-operations.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ SizedGroupedOperations

Returns a new instance of SizedGroupedOperations.



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# File 'lib/groonga/query-log/analyzer/sized-grouped-operations.rb', line 24

def initialize
  @max_size = 10
  @sorter = create_sorter
end

Instance Method Details

#<<(operation) ⇒ Object 



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# File 'lib/groonga/query-log/analyzer/sized-grouped-operations.rb', line 42

def <<(operation)
  each do |grouped_operation|
    if grouped_operation[:name] == operation[:name] and
        grouped_operation[:context] == operation[:context]
      elapsed = operation[:relative_elapsed_in_seconds]
      grouped_operation[:total_elapsed] += elapsed
      grouped_operation[:n_operations] += 1
      replace(sort_by(&@sorter))
      return self
    end
  end

  grouped_operation = {
    :name => operation[:name],
    :context => operation[:context],
    :n_operations => 1,
    :total_elapsed => operation[:relative_elapsed_in_seconds],
  }
  buffer_size = @max_size * 100
  if size < buffer_size
    super(grouped_operation)
    replace(sort_by(&@sorter))
  else
    if @sorter.call(grouped_operation) < @sorter.call(last)
      super(grouped_operation)
      sorted_operations = sort_by(&@sorter)
      sorted_operations.pop
      replace(sorted_operations)
    end
  end
  self
end

#apply_options(options) ⇒ Object 



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# File 'lib/groonga/query-log/analyzer/sized-grouped-operations.rb', line 29

def apply_options(options)
  @max_size = options[:n_entries]
end

#each ⇒ Object 



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# File 'lib/groonga/query-log/analyzer/sized-grouped-operations.rb', line 33

def each
  i = 0
  super do |grouped_operation|
    break if i >= @max_size
    i += 1
    yield(grouped_operation)
  end
end