def _validate_vdict_type(self, translator):
if self.KEY_COL not in translator:
raise exception.InvalidParamException(
"Param (%s) must be in translator" % self.KEY_COL)
if self.VAL_COL not in translator:
raise exception.InvalidParamException(
"Param (%s) must be in translator" % self.VAL_COL)
subtranslator = translator[self.TRANSLATOR]
self._validate_translator(subtranslator)
def _get_schema_vdict(self, translator, schema):
tablename = translator[self.TABLE_NAME]
parent_key = translator.get(self.PARENT_KEY, None)
id_col = translator.get(self.ID_COL, None)
key_col = translator[self.KEY_COL]
value_col = translator[self.VAL_COL]
subtrans = translator[self.TRANSLATOR]
self._get_schema(subtrans, schema)
if tablename in schema:
raise exception.InvalidParamException(
"table %s already in schema" % tablename)
# Construct the schema for this table.
new_schema = (key_col, )
if id_col:
new_schema = (id_col, ) + new_schema
elif parent_key:
parent_col_name = translator.get(self.PARENT_COL_NAME,
self.PARENT_KEY_COL_NAME)
new_schema = (parent_col_name, ) + new_schema
if self.PARENT_KEY not in subtrans:
new_schema = new_schema + (value_col, )
schema[tablename] = new_schema
return schema
def _get_schema_hdict(self, translator, schema):
tablename = translator[self.TABLE_NAME]
parent_key = translator.get(self.PARENT_KEY, None)
id_col = translator.get(self.ID_COL, None)
field_translators = translator[self.FIELD_TRANSLATORS]
columns = []
if id_col is not None:
columns.append(id_col)
elif parent_key is not None:
parent_col_name = translator.get(self.PARENT_COL_NAME,
self.PARENT_KEY_COL_NAME)
columns.append(parent_col_name)
for field_translator in field_translators:
col = field_translator.get(self.COL,
field_translator[self.FIELDNAME])
subtranslator = field_translator[self.TRANSLATOR]
if self.PARENT_KEY not in subtranslator:
columns.append(col)
self._get_schema(subtranslator, schema)
if tablename in schema:
raise exception.InvalidParamException(
"table %s already in schema" % tablename)
schema[tablename] = tuple(columns)
return schema
def _validate_non_value_type_properties(self, translator):
"""HDICT, VDICT, and LIST types all share some common properties."""
parent_key = translator.get(self.PARENT_KEY)
id_col = translator.get(self.ID_COL)
# Specifying both parent-key and id_col in a translator is not valid,
# one should use one or the other but not both.
if parent_key and id_col:
raise exception.InvalidParamException(
'Specify at most one of %s or %s' %
(self.PARENT_KEY, self.ID_COL))
def _validate_translator(self, translator):
translation_type = translator.get(self.TRANSLATION_TYPE)
if self.TRANSLATION_TYPE not in translator:
raise exception.InvalidParamException(
"Param (%s) must be in translator" % self.TRANSLATION_TYPE)
# check that translation_type is valid
if translation_type not in self.VALID_TRANSLATION_TYPES:
msg = ("Translation Type %s not a valid transltion-type %s" %
(translation_type, self.VALID_TRANSLATION_TYPES))
raise exception.InvalidTranslationType(msg)
self._validate_by_translation_type(translator)
def _get_schema_list(self, translator, schema):
tablename = translator[self.TABLE_NAME]
parent_key = translator.get(self.PARENT_KEY, None)
id_col = translator.get(self.ID_COL, None)
value_col = translator[self.VAL_COL]
trans = translator[self.TRANSLATOR]
self._get_schema(trans, schema)
if tablename in schema:
raise exception.InvalidParamException(
"table %s already in schema" % tablename)
if id_col:
schema[tablename] = (id_col, value_col)
elif parent_key:
parent_col_name = translator.get(self.PARENT_COL_NAME,
self.PARENT_KEY_COL_NAME)
schema[tablename] = (parent_col_name, value_col)
else:
schema[tablename] = (value_col, )
return schema
def check_translation_type(cls, params):
if cls.TRANSLATION_TYPE not in params:
raise exception.InvalidParamException(
"Param (%s) must be in translator" % cls.TRANSLATION_TYPE)
def check_params(cls, params, valid_params):
diff = sorted(set(params).difference(valid_params))
if diff:
err = ("Params (%s) are invalid. Valid params: %s" %
(', '.join(diff), str(valid_params)))
raise exception.InvalidParamException(err)
