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 20

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 7

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 24

def run
  HBase.resolve_dependency! '0.98'
  hbase = HBase.new('hbase.zookeeper.quorum' => @task['host'])
  table = hbase.table(@task['table'])
  table.each { |row|
    @page_builder.add(@schema.map { |column|
      value = row[column.name]
      case column.type
      when :long
        if value
          HBase::Util::from_bytes(:long, value)
        else
          0
        end
      when :string
        if value
          HBase::Util::from_bytes(:string, value)
        else
          ''
        end
      else
        value
      end
    })
  }
  @page_builder.finish
  commit_report = {
  }
  return commit_report
end