Class: Embulk::Input::GoogleSpreadsheets::Pager

Inherits:
Object
  • Object
show all
Defined in:
lib/embulk/input/google_spreadsheets/pager.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(task) ⇒ Pager

Returns a new instance of Pager.



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# File 'lib/embulk/input/google_spreadsheets/pager.rb', line 9

def initialize(task)
  @start_row = task['start_row']
  @start_column = task['start_column']
  @end_row = task['end_row']
  @end_column = task['end_column']
  @max_fetch_rows = task['max_fetch_rows']

  validate!
end

Instance Attribute Details

#end_column ⇒ Object (readonly)

Returns the value of attribute end_column.



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# File 'lib/embulk/input/google_spreadsheets/pager.rb', line 7

def end_column
  @end_column
end

#end_row ⇒ Object (readonly)

Returns the value of attribute end_row.



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# File 'lib/embulk/input/google_spreadsheets/pager.rb', line 7

def end_row
  @end_row
end

#max_fetch_rows ⇒ Object (readonly)

Returns the value of attribute max_fetch_rows.



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# File 'lib/embulk/input/google_spreadsheets/pager.rb', line 7

def max_fetch_rows
  @max_fetch_rows
end

#start_column ⇒ Object (readonly)

Returns the value of attribute start_column.



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# File 'lib/embulk/input/google_spreadsheets/pager.rb', line 7

def start_column
  @start_column
end

#start_row ⇒ Object (readonly)

Returns the value of attribute start_row.



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# File 'lib/embulk/input/google_spreadsheets/pager.rb', line 7

def start_row
  @start_row
end

Instance Method Details

#each_record(client, &block) ⇒ Object 



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# File 'lib/embulk/input/google_spreadsheets/pager.rb', line 23

def each_record(client, &block)
  max_row_num = max_accessible_row_num(client)

  total_fetched_rows = 0
  last_fetched_row_num = start_row - 1
  while true do
    start_row_num = last_fetched_row_num + 1
    end_row_num = last_fetched_row_num + max_fetch_rows
    if end_row_num >= max_row_num
      end_row_num = max_row_num
    end

    range = range(start_row_num, end_row_num)
    page = client.worksheet_values(range)
    unless page # no values
      logger.warn { '`embulk-input-google_spreadsheets`: no data is found.' } if total_fetched_rows <= 0
      break
    end

    num_fetched_rows = 0
    page.each do |record|
      break false if no_limit? and empty_record?(record)
      num_fetched_rows += 1
      yield(record)
    end
    total_fetched_rows = total_fetched_rows + num_fetched_rows
    logger.info { "`embulk-input-google_spreadsheets`: fetched #{num_fetched_rows} rows in #{range} (tatal: #{total_fetched_rows} rows)" }
    break if num_fetched_rows < max_fetch_rows

    last_fetched_row_num = end_row_num
    break if last_fetched_row_num >= max_row_num
  end
end

#logger ⇒ Object 



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# File 'lib/embulk/input/google_spreadsheets/pager.rb', line 19

def logger
  GoogleSpreadsheets.logger
end