Class: ActiveRecord::ConnectionAdapters::TokyoTyrantAdapter

Inherits:
AbstractTokyoCabinetAdapter show all
Defined in:
lib/active_record/connection_adapters/tokyotyrant_adapter.rb

Instance Method Summary collapse

Methods inherited from AbstractTokyoCabinetAdapter

#delete_sql, #insert_sql, #select, #supports_count_distinct?, #update_sql

Constructor Details

#initialize(connection, logger, config) ⇒ TokyoTyrantAdapter

Returns a new instance of TokyoTyrantAdapter.



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# File 'lib/active_record/connection_adapters/tokyotyrant_adapter.rb', line 17

def initialize(connection, logger, config)
  super(connection, logger, TokyoTyrant::RDBQRY)
  @database = {}

  config.fetch(:database).map do |table_name, attribute|
    attribute.keys.each do |k|
      attribute[k.to_s] = attribute[k]
    end

    @database[table_name.to_s] = {
      :host => attribute.fetch('host').to_s,
      :port => attribute.fetch('port', 0).to_i,
      :timeout => attribute.fetch('timeout', 0).to_i,
    }
  end
end

Instance Method Details

#disconnect! ⇒ Object 



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# File 'lib/active_record/connection_adapters/tokyotyrant_adapter.rb', line 38

def disconnect!
  super

  @connection.keys.each do |table_name|
    conn = @connection[table_name]
    conn.close
    @connection.delete(table_name)
  end
end

#setindex(table_name, name, type) ⇒ Object 



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# File 'lib/active_record/connection_adapters/tokyotyrant_adapter.rb', line 105

def setindex(table_name, name, type)
  type = {
    :lexical => TokyoTyrant::RDBTBL::ITLEXICAL,
    :decimal => TokyoTyrant::RDBTBL::ITDECIMAL,
    :token   => TokyoTyrant::RDBTBL::ITTOKEN,
    :qgram   => TokyoTyrant::RDBTBL::ITQGRAM,
    :opt     => TokyoTyrant::RDBTBL::ITOPT,
    :void    => TokyoTyrant::RDBTBL::ITVOID,
    :keep    => TokyoTyrant::RDBTBL::ITKEEP,
  }.fetch(type)

  name = name.to_s

  unless (tdb = @connection[table_name])
    host, port, timeout = @database.fetch(table_name).values_at(:host, :port, :timeout)
    tdb = TokyoTyrant::RDBTBL::new

    unless tdb.open(host, port, timeout)
      ecode = tdb.ecode
      raise "%s: %s:%s" % [tdb.errmsg(ecode), host, port]
    end
  end

  begin
    unless tdb.setindex(name, type)
      ecode = tdb.ecode
      raise "%s: %s:%s" % [tdb.errmsg(ecode), host, port]
    end
  ensure
    unless tdb.close
      ecode = tdb.ecode
      raise tdb.errmsg(ecode)
    end
  end
end

#table_exists?(table_name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_record/connection_adapters/tokyotyrant_adapter.rb', line 34

def table_exists?(table_name)
  @database.has_key?(table_name)
end

#tdbopen(table_name, readonly = false) {|tdb| ... } ⇒ Object

Yields:

  • (tdb) 


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# File 'lib/active_record/connection_adapters/tokyotyrant_adapter.rb', line 48

def tdbopen(table_name, readonly = false)
  unless table_exists?(table_name)
    raise "Table does not exist: #{table_name}"
  end

  unless (tdb = @connection[table_name])
    host, port, timeout = @database.fetch(table_name).values_at(:host, :port, :timeout)
    tdb = TokyoTyrant::RDBTBL::new

    unless tdb.open(host, port, timeout)
      ecode = tdb.ecode
      raise "%s: %s:%s" % [tdb.errmsg(ecode), host, port]
    end
  end

  yield(tdb)
  @connection[table_name] = tdb
end