def parse_batch_get_request_items(cls, request_items_json):
request_list = []
for table_name, request_body in request_items_json.iteritems():
validation.validate_table_name(table_name)
validation.validate_object(request_body, table_name)
consistent = request_body.pop(Props.CONSISTENT_READ, False)
validation.validate_boolean(consistent, Props.CONSISTENT_READ)
attributes_to_get = request_body.pop(Props.ATTRIBUTES_TO_GET, None)
if attributes_to_get is not None:
attributes_to_get = validation.validate_set(
attributes_to_get, Props.ATTRIBUTES_TO_GET)
for attr_name in attributes_to_get:
validation.validate_attr_name(attr_name)
keys = request_body.pop(Props.KEYS, None)
validation.validate_list(keys, Props.KEYS)
validation.validate_unexpected_props(request_body, table_name)
for key in keys:
key_attribute_map = cls.parse_item_attributes(key)
request_list.append(
models.GetItemRequest(table_name,
key_attribute_map,
attributes_to_get,
consistent=consistent))
return request_list
def process_request(self, req, body, project_id, table_name):
utils.check_project_id(req.context, project_id)
req.context.tenant = project_id
with probe.Probe(__name__ + '.validate'):
validation.validate_object(body, "body")
# get attributes_to_get
attributes_to_get = body.pop(parser.Props.ATTRIBUTES_TO_GET, None)
if attributes_to_get:
attributes_to_get = validation.validate_set(
attributes_to_get, parser.Props.ATTRIBUTES_TO_GET
)
for attr_name in attributes_to_get:
validation.validate_attr_name(attr_name)
select_type = models.SelectType.specific_attributes(
attributes_to_get
)
else:
select_type = models.SelectType.all()
key = body.pop(parser.Props.KEY, None)
validation.validate_object(key, parser.Props.KEY)
# parse consistent_read
consistent_read = body.pop(parser.Props.CONSISTENT_READ, False)
validation.validate_boolean(consistent_read,
parser.Props.CONSISTENT_READ)
validation.validate_unexpected_props(body, "body")
# parse key_attributes
key_attributes = parser.Parser.parse_item_attributes(key)
# format conditions to get item
indexed_condition_map = {
name: [models.IndexedCondition.eq(value)]
for name, value in key_attributes.iteritems()
}
# get item
result = storage.select_item(
req.context, table_name, indexed_condition_map,
select_type=select_type, limit=2, consistent=consistent_read)
# format response
if result.count == 0:
return {}
response = {
parser.Props.ITEM: parser.Parser.format_item_attributes(
result.items[0])
}
return response
def get_item(req, project_id, table_name):
"""The Getitem operation returns an item with the given primary key. """
with probe.Probe(__name__ + '.validate'):
body = req.json_body
validation.validate_object(body, "body")
# get attributes_to_get
attributes_to_get = body.pop(parser.Props.ATTRIBUTES_TO_GET, None)
if attributes_to_get:
attributes_to_get = validation.validate_set(
attributes_to_get, parser.Props.ATTRIBUTES_TO_GET
)
for attr_name in attributes_to_get:
validation.validate_attr_name(attr_name)
select_type = models.SelectType.specific_attributes(
attributes_to_get
)
else:
select_type = models.SelectType.all()
key = body.pop(parser.Props.KEY, None)
validation.validate_object(key, parser.Props.KEY)
# parse consistent_read
consistent_read = body.pop(parser.Props.CONSISTENT_READ, False)
validation.validate_boolean(consistent_read,
parser.Props.CONSISTENT_READ)
validation.validate_unexpected_props(body, "body")
# parse key_attributes
key_attributes = parser.Parser.parse_item_attributes(key)
# get item
result = storage.get_item(
project_id, table_name, key_attributes,
select_type=select_type, consistent=consistent_read)
# format response
if result.count == 0:
return {}
response = {
parser.Props.ITEM: parser.Parser.format_item_attributes(
result.items[0])
}
return response
def process_request(self, req, body, project_id, table_name):
with probe.Probe(__name__ + '.validate'):
validation.validate_object(body, "body")
# get attributes_to_get
attributes_to_get = body.pop(parser.Props.ATTRIBUTES_TO_GET, None)
if attributes_to_get:
attributes_to_get = validation.validate_set(
attributes_to_get, parser.Props.ATTRIBUTES_TO_GET)
for attr_name in attributes_to_get:
validation.validate_attr_name(attr_name)
select_type = models.SelectType.specific_attributes(
attributes_to_get)
else:
select_type = models.SelectType.all()
key = body.pop(parser.Props.KEY, None)
validation.validate_object(key, parser.Props.KEY)
# parse consistent_read
consistent_read = body.pop(parser.Props.CONSISTENT_READ, False)
validation.validate_boolean(consistent_read,
parser.Props.CONSISTENT_READ)
validation.validate_unexpected_props(body, "body")
# parse key_attributes
key_attributes = parser.Parser.parse_item_attributes(key)
# get item
result = storage.get_item(req.context,
table_name,
key_attributes,
select_type=select_type,
consistent=consistent_read)
# format response
if result.count == 0:
return {}
response = {
parser.Props.ITEM:
parser.Parser.format_item_attributes(result.items[0])
}
return response
def parse_batch_get_request_items(cls, request_items_json):
request_list = []
for table_name, request_body in request_items_json.iteritems():
validation.validate_table_name(table_name)
validation.validate_object(request_body, table_name)
consistent = request_body.pop(Props.CONSISTENT_READ, False)
validation.validate_boolean(consistent, Props.CONSISTENT_READ)
attributes_to_get = request_body.pop(
Props.ATTRIBUTES_TO_GET, None
)
if attributes_to_get is not None:
attributes_to_get = validation.validate_set(
attributes_to_get, Props.ATTRIBUTES_TO_GET
)
for attr_name in attributes_to_get:
validation.validate_attr_name(attr_name)
keys = request_body.pop(Props.KEYS, None)
validation.validate_list(keys, Props.KEYS)
validation.validate_unexpected_props(request_body, table_name)
for key in keys:
key_attribute_map = cls.parse_item_attributes(key)
request_list.append(
models.GetItemRequest(
table_name, key_attribute_map, attributes_to_get,
consistent=consistent
)
)
return request_list
def create_table(self, req, body, project_id):
with probe.Probe(__name__ + '.validate'):
validation.validate_object(body, "body")
table_name = body.pop(parser.Props.TABLE_NAME, None)
validation.validate_table_name(table_name)
# parse table attributes
attribute_definitions_json = body.pop(
parser.Props.ATTRIBUTE_DEFINITIONS, None
)
validation.validate_list_of_objects(
attribute_definitions_json, parser.Props.ATTRIBUTE_DEFINITIONS
)
attribute_definitions = parser.Parser.parse_attribute_definitions(
attribute_definitions_json
)
# parse table key schema
key_attrs_json = body.pop(parser.Props.KEY_SCHEMA, None)
validation.validate_list(key_attrs_json, parser.Props.KEY_SCHEMA)
key_attrs = parser.Parser.parse_key_schema(key_attrs_json)
# parse table indexed field list
lsi_defs_json = body.pop(
parser.Props.LOCAL_SECONDARY_INDEXES, None
)
if lsi_defs_json:
validation.validate_list_of_objects(
lsi_defs_json, parser.Props.LOCAL_SECONDARY_INDEXES
)
index_def_map = parser.Parser.parse_local_secondary_indexes(
lsi_defs_json
)
else:
index_def_map = {}
# validate the uniqueness of table and its indices' key schema
range_keys = []
if len(key_attrs) > 1:
range_keys.append(key_attrs[1])
else:
# table has hash type primary key
if len(index_def_map) > 0:
raise exception.ValidationError(
_("Table without range key in primary key schema "
"can not have indices"))
for index in index_def_map.values():
range_keys.append(index.alt_range_key_attr)
try:
validation.validate_set(range_keys, "key_schema")
except exception.ValidationError:
raise exception.ValidationError(
_("Table and its indices must have unique key schema"))
validation.validate_unexpected_props(body, "body")
# prepare table_schema structure
table_schema = models.TableSchema(
attribute_definitions, key_attrs, index_def_map)
table_meta = storage.create_table(
req.context, table_name, table_schema)
url = req.path_url + "/" + table_name
bookmark = req.path_url + "/" + table_name
result = {
parser.Props.TABLE_DESCRIPTION: {
parser.Props.ATTRIBUTE_DEFINITIONS: (
parser.Parser.format_attribute_definitions(
table_meta.schema.attribute_type_map
)
),
parser.Props.CREATION_DATE_TIME: table_meta.creation_date_time,
parser.Props.ITEM_COUNT: 0,
parser.Props.KEY_SCHEMA: (
parser.Parser.format_key_schema(
table_meta.schema.key_attributes
)
),
parser.Props.TABLE_ID: str(table_meta.id),
parser.Props.TABLE_NAME: table_name,
parser.Props.TABLE_STATUS: (
parser.Parser.format_table_status(table_meta.status)
),
parser.Props.TABLE_SIZE_BYTES: 0,
parser.Props.LINKS: [
{
parser.Props.HREF: url,
parser.Props.REL: parser.Values.SELF
},
{
parser.Props.HREF: bookmark,
parser.Props.REL: parser.Values.BOOKMARK
}
]
}
}
if table_meta.schema.index_def_map:
table_def = result[parser.Props.TABLE_DESCRIPTION]
table_def[parser.Props.LOCAL_SECONDARY_INDEXES] = (
parser.Parser.format_local_secondary_indexes(
table_meta.schema.key_attributes[0],
table_meta.schema.index_def_map
)
)
return result
def create_table(self, req, body, project_id):
with probe.Probe(__name__ + '.validate'):
validation.validate_object(body, "body")
table_name = body.pop(parser.Props.TABLE_NAME, None)
validation.validate_table_name(table_name)
# parse table attributes
attribute_definitions_json = body.pop(
parser.Props.ATTRIBUTE_DEFINITIONS, None)
validation.validate_list_of_objects(
attribute_definitions_json, parser.Props.ATTRIBUTE_DEFINITIONS)
attribute_definitions = parser.Parser.parse_attribute_definitions(
attribute_definitions_json)
# parse table key schema
key_attrs_json = body.pop(parser.Props.KEY_SCHEMA, None)
validation.validate_list(key_attrs_json, parser.Props.KEY_SCHEMA)
key_attrs = parser.Parser.parse_key_schema(key_attrs_json)
# parse table indexed field list
lsi_defs_json = body.pop(parser.Props.LOCAL_SECONDARY_INDEXES,
None)
if lsi_defs_json:
validation.validate_list_of_objects(
lsi_defs_json, parser.Props.LOCAL_SECONDARY_INDEXES)
index_def_map = parser.Parser.parse_local_secondary_indexes(
lsi_defs_json)
else:
index_def_map = {}
# validate the uniqueness of table and its indices' key schema
range_keys = []
if len(key_attrs) > 1:
range_keys.append(key_attrs[1])
else:
# table has hash type primary key
if len(index_def_map) > 0:
raise exception.ValidationError(
_("Table without range key in primary key schema "
"can not have indices"))
for index in index_def_map.values():
range_keys.append(index.alt_range_key_attr)
try:
validation.validate_set(range_keys, "key_schema")
except exception.ValidationError:
raise exception.ValidationError(
_("Table and its indices must have unique key schema"))
validation.validate_unexpected_props(body, "body")
# prepare table_schema structure
table_schema = models.TableSchema(attribute_definitions, key_attrs,
index_def_map)
table_meta = storage.create_table(req.context, table_name,
table_schema)
url = req.path_url + "/" + table_name
bookmark = req.path_url + "/" + table_name
result = {
parser.Props.TABLE_DESCRIPTION: {
parser.Props.ATTRIBUTE_DEFINITIONS:
(parser.Parser.format_attribute_definitions(
table_meta.schema.attribute_type_map)),
parser.Props.CREATION_DATE_TIME:
table_meta.creation_date_time,
parser.Props.ITEM_COUNT:
0,
parser.Props.KEY_SCHEMA: (parser.Parser.format_key_schema(
table_meta.schema.key_attributes)),
parser.Props.TABLE_ID:
str(table_meta.id),
parser.Props.TABLE_NAME:
table_name,
parser.Props.TABLE_STATUS:
(parser.Parser.format_table_status(table_meta.status)),
parser.Props.TABLE_SIZE_BYTES:
0,
parser.Props.LINKS: [{
parser.Props.HREF: url,
parser.Props.REL: parser.Values.SELF
}, {
parser.Props.HREF: bookmark,
parser.Props.REL: parser.Values.BOOKMARK
}]
}
}
if table_meta.schema.index_def_map:
table_def = result[parser.Props.TABLE_DESCRIPTION]
table_def[parser.Props.LOCAL_SECONDARY_INDEXES] = (
parser.Parser.format_local_secondary_indexes(
table_meta.schema.key_attributes[0],
table_meta.schema.index_def_map))
return result
