hbase-shell/src/main/ruby/shell/commands/describe.rb

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module Shell
  module Commands
    class Describe < Command
      def help
        return <<-EOF
Describe the named table. For example:
  hbase> describe 't1'
  hbase> describe 'ns1:t1'

Alternatively, you can use the abbreviated 'desc' for the same thing.
  hbase> desc 't1'
  hbase> desc 'ns1:t1'
EOF
      end

      def command(table)
        now = Time.now

        column_families = admin.get_column_families(table)

        formatter.header(["Table " + table.to_s + " is " + if admin.enabled?(table) then "ENABLED" else "DISABLED" end])
        formatter.row([table.to_s + admin.get_table_attributes(table)], true)
        formatter.header(["COLUMN FAMILIES DESCRIPTION"])
        column_families.each do |column_family|
          formatter.row([ column_family.to_s ], true)
        end
        formatter.footer(now)
      end
    end
  end
end