def _extract_bytes(self, details): # Replace it with the byte amount real_size = self.SIZE_RE.search(details) if not real_size: raise ValueError(_('Invalid input value "%s".') % details) magnitude = real_size.group(1) unit_of_measure = real_size.group(2) bytes_info = real_size.group(3) if bytes_info: return int(real_size.group(4)) elif not unit_of_measure: return int(magnitude) return strutils.string_to_bytes('%s%sB' % (magnitude, unit_of_measure), return_int=True)
def _calculate_count(size_in_m, blocksize): # Check if volume_dd_blocksize is valid try: # Rule out zero-sized/negative/float dd blocksize which # cannot be caught by strutils if blocksize.startswith(('-', '0')) or '.' in blocksize: raise ValueError bs = strutils.string_to_bytes('%sB' % blocksize) except ValueError: msg = (_("Incorrect value error: %(blocksize)s, " "it may indicate that \'volume_dd_blocksize\' " "was configured incorrectly. Fall back to default.") % {'blocksize': blocksize}) LOG.warn(msg) # Fall back to default blocksize CONF.clear_override('volume_dd_blocksize') blocksize = CONF.volume_dd_blocksize bs = strutils.string_to_bytes('%sB' % blocksize) count = math.ceil(size_in_m * units.Mi / bs) return blocksize, int(count)
def _calculate_count(size_in_m, blocksize): # Check if volume_dd_blocksize is valid try: # Rule out zero-sized/negative/float dd blocksize which # cannot be caught by strutils if blocksize.startswith(('-', '0')) or '.' in blocksize: raise ValueError bs = strutils.string_to_bytes('%sB' % blocksize) except ValueError: msg = (_("Incorrect value error: %(blocksize)s, " "it may indicate that \'volume_dd_blocksize\' " "was configured incorrectly. Fall back to default.") % { 'blocksize': blocksize }) LOG.warn(msg) # Fall back to default blocksize CONF.clear_override('volume_dd_blocksize') blocksize = CONF.volume_dd_blocksize bs = strutils.string_to_bytes('%sB' % blocksize) count = math.ceil(size_in_m * units.MiB / bs) return blocksize, int(count)