Class: Mysql::FlydataJsonHandlerFactory::TableFlydataJsonHandler

Inherits:
FlydataJsonHandler show all
Defined in:
lib/flydata/fluent-plugins/mysql/binlog_record_handler.rb

Constant Summary

Constants inherited from FlydataJsonHandler

FlydataJsonHandler::DB_NAME, FlydataJsonHandler::RESPECT_ORDER, FlydataJsonHandler::SEQ, FlydataJsonHandler::SRC_POS, FlydataJsonHandler::TABLE_NAME, FlydataJsonHandler::TABLE_REV, FlydataJsonHandler::TYPE, FlydataJsonHandler::V

Instance Method Summary collapse

Constructor Details

#initialize(records, record, context, type, increment_table_rev = nil) ⇒ TableFlydataJsonHandler

Returns a new instance of TableFlydataJsonHandler.



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# File 'lib/flydata/fluent-plugins/mysql/binlog_record_handler.rb', line 113

def initialize(records, record, context, type, increment_table_rev=nil)
  super
  table = records.first[TABLE_NAME] || record['table_name']
  raise "Missing table name. #{record}" if table.to_s.empty?

  return unless acceptable_event?(type, table)

  table_rev = @context.table_revs[table]
  position = record['next_position'] - record['event_length']

  # Add common information to each record
  records.each do |r|
    if increment_table_rev
      table_rev = @context.sync_fm.increment_table_rev(table, table_rev)
      @context.table_revs[table] = table_rev
    end
    r[TYPE] = type
    r[RESPECT_ORDER] = true
    r[TABLE_NAME] = table
    r[SRC_POS] = "#{@context.current_binlog_file}\t#{position}"
    r[TABLE_REV] = table_rev
    r[V] = FlydataCore::Record::V2
  end

  # Use binlog's timestamp
  timestamp = record["timestamp"].to_i
  records.each do |row|
    emit(timestamp, row)
  end
end

Instance Method Details

#emit(timestamp, row) ⇒ Object 



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# File 'lib/flydata/fluent-plugins/mysql/binlog_record_handler.rb', line 144

def emit(timestamp, row)
  @context.sync_fm.increment_and_save_table_position(row[TABLE_NAME]) do |seq|
    row[SEQ] = seq
    Fluent::Engine.emit(@context.tag, timestamp, row)
  end
end