1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
#The MIT License (MIT)
#Copyright (c) 2014 Microsoft Corporation
#Permission is hereby granted, free of charge, to any person obtaining a copy
#of this software and associated documentation files (the "Software"), to deal
#in the Software without restriction, including without limitation the rights
#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
#copies of the Software, and to permit persons to whom the Software is
#furnished to do so, subject to the following conditions:
#The above copyright notice and this permission notice shall be included in all
#copies or substantial portions of the Software.
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
#SOFTWARE.
"""Internal class for partitioned query execution info implementation in the Azure Cosmos database service.
"""
import six
class _PartitionedQueryExecutionInfo(object):
'''
Represents a wrapper helper for partitioned query execution info dictionary
returned by the backend.
'''
QueryInfoPath = 'queryInfo'
TopPath = [QueryInfoPath, 'top']
OrderByPath = [QueryInfoPath, 'orderBy']
AggregatesPath = [QueryInfoPath, 'aggregates']
QueryRangesPath = 'queryRanges'
RewrittenQueryPath = [QueryInfoPath, 'rewrittenQuery']
def __init__(self, query_execution_info):
'''
Constructor
:param dict query_execution_info:
'''
self._query_execution_info = query_execution_info
def get_top(self):
"""Returns the top count (if any) or None
"""
return self._extract(_PartitionedQueryExecutionInfo.TopPath)
def get_order_by(self):
"""Returns order by items (if any) or None
"""
return self._extract(_PartitionedQueryExecutionInfo.OrderByPath)
def get_aggregates(self):
"""Returns aggregators (if any) or None
"""
return self._extract(_PartitionedQueryExecutionInfo.AggregatesPath)
def get_query_ranges(self):
"""Returns query partition ranges (if any) or None
"""
return self._extract(_PartitionedQueryExecutionInfo.QueryRangesPath)
def get_rewritten_query(self):
"""Returns rewritten query or None (if any)
"""
rewrittenQuery = self._extract(_PartitionedQueryExecutionInfo.RewrittenQueryPath)
if rewrittenQuery is not None:
# Hardcode formattable filter to true for now
rewrittenQuery = rewrittenQuery.replace('{documentdb-formattableorderbyquery-filter}', 'true')
return rewrittenQuery
def _extract(self, path):
item = self._query_execution_info
if isinstance(path, six.string_types):
return item.get(path)
for p in path:
item = item.get(p)
if item is None:
return None
return item
|
