#
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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
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module Shell
  module Commands
    class List < Command
      def help
        return <<-EOF
List all tables in hbase. Optional regular expression parameter could
be used to filter the output. Examples:

  hbase> list
  hbase> list 'abc.*'
  hbase> list 'ns:abc.*'
  hbase> list 'ns:.*'
EOF
      end

      def command(regex = ".*")
        now = Time.now
        formatter.header([ "TABLE" ])

        list = admin.list(regex)
        list.each do |table|
          formatter.row([ table ])
        end

        formatter.footer(now, list.size)
        return list
      end
    end
  end
end