Class: Embulk::InputHBase

Inherits:
InputPlugin
  • Object
show all
Defined in:
lib/embulk/input_hbase.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(task, schema, index, page_builder) ⇒ InputHBase

Returns a new instance of InputHBase.



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# File 'lib/embulk/input_hbase.rb', line 26

def initialize(task, schema, index, page_builder)
  super
end

Class Method Details

.transaction(config, &control) ⇒ Object 



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# File 'lib/embulk/input_hbase.rb', line 13

def self.transaction(config, &control)
  task = {
    'host' => config.param('host', :string, default: 'localhost'),
    'table' => config.param('table', :string)
  }
  threads = 1
  columns = config.param('columns', :array).map.with_index { |column, i|
    Column.new(i, column['name'], column['type'].to_sym)
  }
  commit_reports = yield(task, columns, threads)
  return {}
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/embulk/input_hbase.rb', line 30

def run
  conf = HBaseConfiguration.create
  conf.set('hbase.zookeeper.quorum', @task['host'])
  connection = HConnectionManager.createConnection(conf)
  table = connection.getTable(@task['table'])
  scan = Scan.new
  scanner = table.getScanner(scan)
  scanner.each { |result|
    @page_builder.add(@schema.map { |column|
      family, qualifier = column.name.split(':').map {|e|
        Bytes.toBytes(e)
      }
      raw = nil
      if result.containsColumn(family, qualifier) then
        cell = result.getColumnLatestCell(family, qualifier)
        raw = CellUtil.cloneValue(cell)
      end
      if raw then
        case column.type
        when :long
          Bytes.toLong(raw)
        when :string
          Bytes.toString(raw)
        else
          raw
        end
      else
        nil
      end
    })
  }
  @page_builder.finish
  commit_report = {
  }
  return commit_report
end