Class: EventSource::Get::Substitute

Inherits:
Object
  • Object
show all
Includes:
EventSource::Get
Defined in:
lib/event_source/get.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from EventSource::Get

included

Class Method Details

.build(batch_size: nil, session: nil) ⇒ Object 



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# File 'lib/event_source/get.rb', line 24

def self.build(batch_size: nil, session: nil)
  new(batch_size)
end

Instance Method Details

#batch_size ⇒ Object 



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# File 'lib/event_source/get.rb', line 16

def batch_size
  @batch_size ||= 1
end

#call(stream_name = nil, position: nil) ⇒ Object 



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# File 'lib/event_source/get.rb', line 28

def call(stream_name=nil, position: nil)
  position ||= 0

  logger.trace(tag: :control) { "Getting (Position: #{position}, Batch Size: #{batch_size}, Stream Name: #{stream_name.inspect})" }

  logger.debug(tags: [:control, :data]) { "Items: \n#{items.pretty_inspect}" }
  logger.debug(tag: :control) { "Position: #{position.inspect}" }
  logger.debug(tag: :control) { "Batch Size: #{batch_size.inspect}" }

  unless EventSource::StreamName.category?(stream_name)
    index = (items.index { |i| i.position >= position })
  else
    index = (items.index { |i| i.global_position >= position })
  end

  logger.debug(tag: :control) { "Index: #{index.inspect}" }

  if index.nil?
    items = []
  else
    range = index..(index + batch_size - 1)
    logger.debug(tag: :control) { "Range: #{range.pretty_inspect}" }

    items = self.items[range]
  end

  logger.info(tags: [:control, :data]) { "Got: \n#{items.pretty_inspect}" }
  logger.info(tag: :control) { "Finished getting (Position: #{position}, Stream Name: #{stream_name.inspect})" }

  items
end

#items ⇒ Object 



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# File 'lib/event_source/get.rb', line 20

def items
  @items ||= []
end