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

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module Shell
  module Commands
    class ListSecurityCapabilities < Command
      def help
        <<-EOF
List supported security capabilities

Example:
    hbase> list_security_capabilities
EOF
      end

      def command
        list = admin.get_security_capabilities
        list.each do |s|
          puts s.getName
        end
        return list.map(&:getName)
      rescue Exception => e
        if e.to_s.include? 'UnsupportedOperationException'
          puts 'ERROR: Master does not support getSecurityCapabilities'
          return []
        end
        raise e
      end
    end
  end
end