66 lines
2.3 KiB
Python
66 lines
2.3 KiB
Python
# Copyright 2014 Symantec Corporation
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# All Rights Reserved.
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#
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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 magnetodb import api
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from magnetodb.api.openstack.v1 import parser
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from magnetodb.api import validation
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from magnetodb.common import probe
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from magnetodb.common.utils import request_context_decorator
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from magnetodb import storage
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class BatchGetItemController(object):
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"""The BatchGetitem operation returns the attributes
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of one or more items from one or more tables.
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"""
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@api.enforce_policy("mdb:batch_get_item")
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@probe.Probe(__name__)
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@request_context_decorator.request_type("batch_read")
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def process_request(self, req, body, project_id):
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with probe.Probe(__name__ + '.validation'):
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validation.validate_object(body, "body")
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request_items_json = body.pop(parser.Props.REQUEST_ITEMS, None)
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validation.validate_object(request_items_json,
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parser.Props.REQUEST_ITEMS)
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validation.validate_unexpected_props(body, "body")
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# parse request_items
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request_list = parser.Parser.parse_batch_get_request_items(
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request_items_json
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)
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result, unprocessed = storage.execute_get_batch(
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req.context, request_list)
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responses = {}
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for tname, res in result:
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if not res.items:
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continue
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table_items = responses.get(tname, None)
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if table_items is None:
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table_items = []
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responses[tname] = table_items
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item = parser.Parser.format_item_attributes(res.items[0])
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table_items.append(item)
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return {
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'responses': responses,
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'unprocessed_keys': parser.Parser.format_batch_get_unprocessed(
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unprocessed, request_items_json)
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}
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