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#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import logging
from toscaparser.dataentity import DataEntity
from toscaparser.elements.scalarunit import ScalarUnit_Size
from toscaparser.utils.gettextutils import _
from toscaparser.utils.validateutils import TOSCAVersionProperty
from translator.hot.syntax.hot_parameter import HotParameter
INPUT_CONSTRAINTS = (CONSTRAINTS, DESCRIPTION, LENGTH, RANGE,
MIN, MAX, ALLOWED_VALUES, ALLOWED_PATTERN) = \
('constraints', 'description', 'length', 'range',
'min', 'max', 'allowed_values', 'allowed_pattern')
TOSCA_CONSTRAINT_OPERATORS = (EQUAL, GREATER_THAN, GREATER_OR_EQUAL, LESS_THAN,
LESS_OR_EQUAL, IN_RANGE, VALID_VALUES, LENGTH,
MIN_LENGTH, MAX_LENGTH, PATTERN) = \
('equal', 'greater_than', 'greater_or_equal',
'less_than', 'less_or_equal', 'in_range',
'valid_values', 'length', 'min_length',
'max_length', 'pattern')
TOSCA_TO_HOT_CONSTRAINTS_ATTRS = {'equal': 'allowed_values',
'greater_than': 'range',
'greater_or_equal': 'range',
'less_than': 'range',
'less_or_equal': 'range',
'in_range': 'range',
'valid_values': 'allowed_values',
'length': 'length',
'min_length': 'length',
'max_length': 'length',
'pattern': 'allowed_pattern'}
TOSCA_TO_HOT_INPUT_TYPES = {'string': 'string',
'integer': 'number',
'float': 'number',
'boolean': 'boolean',
'timestamp': 'string',
'scalar-unit.size': 'number',
'version': 'string',
'null': 'string',
'PortDef': 'number'}
log = logging.getLogger('heat-translator')
class TranslateInputs(object):
'''Translate TOSCA Inputs to Heat Parameters.'''
def __init__(self, inputs, parsed_params):
self.inputs = inputs
self.parsed_params = parsed_params
def translate(self):
return self._translate_inputs()
def _translate_inputs(self):
hot_inputs = []
hot_default = None
for input in self.inputs:
hot_input_type = TOSCA_TO_HOT_INPUT_TYPES[input.type]
if input.name in self.parsed_params:
hot_default = DataEntity.validate_datatype(
input.type, self.parsed_params[input.name])
elif input.default is not None:
hot_default = DataEntity.validate_datatype(input.type,
input.default)
else:
log.warning(_("Need to specify a value "
"for input {0}").format(input.name))
raise Exception(_("Need to specify a value "
"for input {0}").format(input.name))
if input.type == "scalar-unit.size":
# Assumption here is to use this scalar-unit.size for size of
# cinder volume in heat templates and will be in GB.
# should add logic to support other types if needed.
input_value = hot_default
hot_default = (ScalarUnit_Size(hot_default).
get_num_from_scalar_unit('GiB'))
if hot_default == 0:
log.warning(_('Unit value should be > 0.'))
raise Exception(_(
'Unit value should be > 0.'))
elif int(hot_default) < hot_default:
hot_default = int(hot_default) + 1
log.warning(_("Cinder unit value should be in multiples"
" of GBs. So corrected %(input_value)s "
"to %(hot_default)s GB.")
% {'input_value': input_value,
'hot_default': hot_default})
if input.type == 'version':
hot_default = TOSCAVersionProperty(hot_default).get_version()
hot_constraints = []
if input.constraints:
for constraint in input.constraints:
constraint.validate(hot_default)
hc, hvalue = self._translate_constraints(
constraint.constraint_key, constraint.constraint_value)
hot_constraints.append({hc: hvalue})
hot_inputs.append(HotParameter(name=input.name,
type=hot_input_type,
description=input.description,
default=hot_default,
constraints=hot_constraints))
return hot_inputs
def _translate_constraints(self, name, value):
hot_constraint = TOSCA_TO_HOT_CONSTRAINTS_ATTRS[name]
# Offset used to support less_than and greater_than.
# TODO(anyone): when parser supports float, verify this works
offset = 1
if name == EQUAL:
hot_value = [value]
elif name == GREATER_THAN:
hot_value = {"min": value + offset}
elif name == GREATER_OR_EQUAL:
hot_value = {"min": value}
elif name == LESS_THAN:
hot_value = {"max": value - offset}
elif name == LESS_OR_EQUAL:
hot_value = {"max": value}
elif name == IN_RANGE:
# value is list type here
min_value = min(value)
max_value = max(value)
hot_value = {"min": min_value, "max": max_value}
elif name == LENGTH:
hot_value = {"min": value, "max": value}
elif name == MIN_LENGTH:
hot_value = {"min": value}
elif name == MAX_LENGTH:
hot_value = {"max": value}
else:
hot_value = value
return hot_constraint, hot_value
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