Class: Mongoid::Report::Batches

Inherits:
Struct
  • Object
show all
Defined in:
lib/mongoid/report/batches.rb

Overview

Split the queries into threads.

Constant Summary collapse

DEFAULT_THREAD_POOL_SIZE = 
5

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(settings = {}, conditions = {}) ⇒ Batches 



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# File 'lib/mongoid/report/batches.rb', line 8

def initialize(settings = {}, conditions = {})
  if settings.nil? || settings.empty?
    settings = { 'pool_size' => DEFAULT_THREAD_POOL_SIZE }
  end

  super(settings, conditions)
end

Instance Attribute Details

#conditions ⇒ Object

Returns the value of attribute conditions



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# File 'lib/mongoid/report/batches.rb', line 5

def conditions
  @conditions
end

#settings ⇒ Object

Returns the value of attribute settings



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# File 'lib/mongoid/report/batches.rb', line 5

def settings
  @settings
end

Instance Method Details

#field ⇒ Object 



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# File 'lib/mongoid/report/batches.rb', line 16

def field
  conditions.keys[0]
end

#map ⇒ Object 



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# File 'lib/mongoid/report/batches.rb', line 24

def map
  range.each_slice(size.ceil).map do |r|
    yield r
  end
end

#present? ⇒ Boolean 



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# File 'lib/mongoid/report/batches.rb', line 34

def present?
  settings['pool_size'].present? &&
    conditions.present?
end

#range ⇒ Object 



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# File 'lib/mongoid/report/batches.rb', line 20

def range
  conditions.values[0]
end

#size ⇒ Object 



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# File 'lib/mongoid/report/batches.rb', line 30

def size
  range.count.to_f / settings['pool_size'].to_f
end