Source code for heat.common.param_utils

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from oslo_utils import strutils

from heat.common.i18n import _

[docs]def extract_bool(name, value): """Convert any true/false string to its corresponding boolean value. Value is case insensitive. """ if str(value).lower() not in ('true', 'false'): raise ValueError(_('Unrecognized value "%(value)s" for "%(name)s", ' 'acceptable values are: true, false.') % {'value': value, 'name': name}) return strutils.bool_from_string(value, strict=True)
[docs]def delim_string_to_list(value): if value is None: return None if value == '': return [] return value.split(',')
[docs]def extract_int(name, value, allow_zero=True, allow_negative=False): if value is None: return None if not strutils.is_int_like(value): raise ValueError(_("Only integer is acceptable by " "'%(name)s'.") % {'name': name}) if value in ('0', 0): if allow_zero: return int(value) raise ValueError(_("Only non-zero integer is acceptable by " "'%(name)s'.") % {'name': name}) try: result = int(value) except (TypeError, ValueError): raise ValueError(_("Value '%(value)s' is invalid for '%(name)s' " "which only accepts integer.") % {'name': name, 'value': value}) if allow_negative is False and result < 0: raise ValueError(_("Value '%(value)s' is invalid for '%(name)s' " "which only accepts non-negative integer.") % {'name': name, 'value': value}) return result
[docs]def extract_tags(subject): tags = subject.split(',') for tag in tags: if len(tag) > 80: raise ValueError(_('Invalid tag, "%s" is longer than 80 ' 'characters') % tag) return tags
[docs]def extract_template_type(subject): template_type = subject.lower() if template_type not in ('cfn', 'hot'): raise ValueError(_('Invalid template type "%(value)s", valid ' 'types are: cfn, hot.') % {'value': subject}) return template_type