c2211f0e0a
Remove gettextutils from heat engine and import oslo.i18n. blueprint oslo-i18n Change-Id: Iadf4cfc0f9a0b94c1f2fa1eb71f807539247b34e
70 lines
2.7 KiB
Python
70 lines
2.7 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from heat.common.exception import StackValidationFailed
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from heat.common.i18n import _
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from heat.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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PARAMETER_GROUPS = 'parameter_groups'
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PARAMETERS = 'parameters'
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class ParameterGroups(object):
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'''
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The ParameterGroups specified by the stack's template.
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'''
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def __init__(self, tmpl):
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self.tmpl = tmpl
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self.parameters = tmpl.parameters(None, {})
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LOG.debug(self.tmpl)
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LOG.debug(self.parameters)
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self.parameter_names = []
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if self.parameters:
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self.parameter_names = [param for param in self.parameters]
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self.parameter_groups = tmpl.get(PARAMETER_GROUPS)
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def validate(self):
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'''
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Validate that a parameter belongs to only one Parameter Group
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and that each parameter name references a valid parameter.
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'''
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LOG.debug('Validating Parameter Groups.')
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LOG.debug(self.parameter_names)
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if self.parameter_groups is not None:
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#Loop through groups and validate parameters
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grouped_parameters = []
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for group in self.parameter_groups:
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parameters = group.get(PARAMETERS)
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if parameters is None:
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raise StackValidationFailed(message=_(
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'Parameters must be provided for '
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'each Parameter Group.'))
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for param in parameters:
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#Check if param has been added to a previous group
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if param in grouped_parameters:
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raise StackValidationFailed(message=_(
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'The %s parameter must be assigned to one '
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'Parameter Group only.') % param)
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else:
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grouped_parameters.append(param)
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#Check that grouped parameter references a valid Parameter
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if param not in self.parameter_names:
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raise StackValidationFailed(message=_(
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'The Parameter name (%s) does not reference '
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'an existing parameter.') % param)
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