def get_version(template_data, available_versions):
version_keys = set(key for key, version in available_versions)
candidate_keys = set(k for k, v in six.iteritems(template_data) if
isinstance(v, six.string_types))
keys_present = version_keys & candidate_keys
if len(keys_present) > 1:
explanation = _('Ambiguous versions (%s)') % ', '.join(keys_present)
raise exception.InvalidTemplateVersion(explanation=explanation)
try:
version_key = keys_present.pop()
except KeyError:
explanation = _('Template version was not provided')
raise exception.InvalidTemplateVersion(explanation=explanation)
return version_key, template_data[version_key]
def get_template_class(plugin_mgr, template_data):
global _template_classes
if _template_classes is None:
tmpl_mapping = plugin_manager.PluginMapping('template')
_template_classes = dict(tmpl_mapping.load_all(plugin_mgr))
available_versions = _template_classes.keys()
version = get_version(template_data, available_versions)
version_type = version[0]
try:
return _template_classes[version]
except KeyError:
av_list = [v for k, v in available_versions if k == version_type]
msg_data = {
'version': ': '.join(version),
'version_type': version_type,
'available': ', '.join(v for v in av_list)
}
if len(av_list) > 1:
explanation = _('"%(version)s". "%(version_type)s" '
'should be one of: %(available)s') % msg_data
else:
explanation = _('"%(version)s". "%(version_type)s" '
'should be: %(available)s') % msg_data
raise exception.InvalidTemplateVersion(explanation=explanation)
def get_template_class(plugin_mgr, template_data):
global _template_classes
if _template_classes is None:
mgr = extension.ExtensionManager(namespace='heat.templates',
invoke_on_load=False,
verify_requirements=True)
_template_classes = dict(
(tuple(name.split('.')), mgr[name].plugin) for name in mgr.names())
available_versions = _template_classes.keys()
version = get_version(template_data, available_versions)
version_type = version[0]
try:
return _template_classes[version]
except KeyError:
av_list = [v for k, v in available_versions if k == version_type]
msg_data = {
'version': ': '.join(version),
'version_type': version_type,
'available': ', '.join(v for v in av_list)
}
if len(av_list) > 1:
explanation = _('"%(version)s". "%(version_type)s" '
'should be one of: %(available)s') % msg_data
else:
explanation = _('"%(version)s". "%(version_type)s" '
'should be: %(available)s') % msg_data
raise exception.InvalidTemplateVersion(explanation=explanation)
def get_version(template_data, available_versions):
version_keys = set(key for key, version in available_versions)
candidate_keys = set(k for k, v in template_data.iteritems()
if isinstance(v, basestring))
keys_present = version_keys & candidate_keys
if not keys_present:
return DEFAULT_VERSION
if len(keys_present) > 1:
explanation = _('Ambiguous versions (%s)') % ', '.join(keys_present)
raise exception.InvalidTemplateVersion(explanation=explanation)
version_key = keys_present.pop()
return version_key, template_data[version_key]
def get_template_class(plugin_mgr, template_data):
global _template_classes
if _template_classes is None:
tmpl_mapping = plugin_manager.PluginMapping('template')
_template_classes = dict(tmpl_mapping.load_all(plugin_mgr))
available_versions = _template_classes.keys()
version = get_version(template_data, available_versions)
try:
return _template_classes[version]
except KeyError:
msg_data = {
'version': ': '.join(version),
'available': ', '.join(v for vk, v in available_versions)
}
explanation = _('Unknown version (%(version)s). '
'Should be one of: %(available)s') % msg_data
raise exception.InvalidTemplateVersion(explanation=explanation)
def get_template_class(template_data):
available_versions = _template_classes.keys()
version = get_version(template_data, available_versions)
version_type = version[0]
try:
return _template_classes[version]
except KeyError:
av_list = [v for k, v in available_versions if k == version_type]
msg_data = {'version': ': '.join(version),
'version_type': version_type,
'available': ', '.join(v for v in av_list)}
if len(av_list) > 1:
explanation = _('"%(version)s". "%(version_type)s" '
'should be one of: %(available)s') % msg_data
else:
explanation = _('"%(version)s". "%(version_type)s" '
'should be: %(available)s') % msg_data
raise exception.InvalidTemplateVersion(explanation=explanation)
def validate(self):
exp = (_("The function %s is not supported in this version of HOT.") %
self.fn_name)
raise exception.InvalidTemplateVersion(explanation=exp)
def __init__(self, stack, fn_name, args):
exp = (_("The function %s is not supported in this version of HOT.") %
fn_name)
raise exception.InvalidTemplateVersion(explanation=exp)
