Class: Droonga::Plugins::Dump::Dumper

Inherits:
AsyncCommand::AsyncHandler show all
Includes:
DatabaseScanner
Defined in:
lib/droonga/plugins/dump.rb

Instance Method Summary collapse

Methods included from DatabaseScanner

#each_index_columns, #each_table, #index_column?, #index_only_table?, #n_columns, #n_records, #n_tables, #reference_table?, #table?, #total_n_objects

Constructor Details

#initialize(context, loop, messenger, request) ⇒ Dumper

Returns a new instance of Dumper.



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# File 'lib/droonga/plugins/dump.rb', line 69

def initialize(context, loop, messenger, request)
  @context = context
  super(loop, messenger, request)
end

Instance Method Details

#start ⇒ Object 



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# File 'lib/droonga/plugins/dump.rb', line 74

def start
  on_start

  runner = Fiber.new do
    forecast
    dump_schema
    dump_records
    dump_indexes
    on_finish
  end

  timer = Coolio::TimerWatcher.new(0.1, true)
  timer.on_timer do
    if runner.alive?
      begin
        runner.resume
      rescue
        timer.detach
        logger.trace("start: timer detached by unexpected exception",
                     :watcher => timer)
        logger.exception(error_message, $!)
        error(error_name, error_message)
      end
    else
      timer.detach
      logger.trace("start: timer detached by unexpected exception",
                   :watcher => timer)
    end
  end

  @loop.attach(timer)
  logger.trace("start: timer attached",
               :watcher => timer)
end