0.90/src/main/ruby/shell/commands/get_counter.rb

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# Copyright 2010 The Apache Software Foundation
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#     http://www.apache.org/licenses/LICENSE-2.0
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module Shell
  module Commands
    class GetCounter < Command
      def help
        return <<-EOF
Return a counter cell value at specified table/row/column coordinates.
A cell cell should be managed with atomic increment function oh HBase
and the data should be binary encoded. Example:

  hbase> get_counter 't1', 'r1', 'c1'
EOF
      end

      def command(table, row, column, value = nil)
        if cnt = table(table).get_counter(row, column)
          puts "COUNTER VALUE = #{cnt}"
        else
          puts "No counter found at specified coordinates"
        end
      end
    end
  end
end