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module Shell
  module Commands
    class RestoreSnapshot < Command
      def help
        <<-EOF
Restore a specified snapshot.
The restore will replace the content of the original table,
bringing back the content to the snapshot state.
The table must be disabled.

Examples:
  hbase> restore_snapshot 'snapshotName'

Following command will restore all acl from snapshot table into the table.

  hbase> restore_snapshot 'snapshotName', {RESTORE_ACL=>true}
EOF
      end

      def command(snapshot_name, args = {})
        raise(ArgumentError, 'Arguments should be a Hash') unless args.is_a?(Hash)
        restore_acl = args.delete(::HBaseConstants::RESTORE_ACL) || false
        admin.restore_snapshot(snapshot_name, restore_acl)
      end
    end
  end
end