// https://tools.ietf.org/html/rfc7231#section-7.1.3
    // currently ignores a HTTP-date, and assumes any non int 0 is a delay
    if (header.matches("\\d+".toRegex())) {
      return Integer.valueOf(header)
    }
    return Integer.MAX_VALUE
  }

  companion object {
    /**

        return if (parsed <= 0L) Long.MIN_VALUE else parsed
      } catch (e: NumberFormatException) {
        // Check if the value is an integer (positive or negative) that's too big for a long.
        if (s.matches("-?\\d+".toRegex())) {
          return if (s.startsWith("-")) Long.MIN_VALUE else Long.MAX_VALUE
        }
        throw e
      }
    }

    /**

    @JvmField val MAGIC = "libcore.io.DiskLruCache"

    @JvmField val VERSION_1 = "1"

    @JvmField val ANY_SEQUENCE_NUMBER: Long = -1

    @JvmField val LEGAL_KEY_PATTERN = "[a-z0-9_-]{1,120}".toRegex()

    @JvmField val CLEAN = "CLEAN"

    @JvmField val DIRTY = "DIRTY"

    @JvmField val REMOVE = "REMOVE"

    @JvmField val READ = "READ"
  }