| 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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200 |
1
1
1
1
1
1
1
1
1
1
453
453
2692
2679
2679
2679
36
2679
2679
564
453
3696
12
3684
12
3672
12
3660
453
1
43
43
43
41
41
43
1
52
52
52
332
332
332
52
1
390
390
390
390
3490
125
3365
575
2790
390
350
350
390
390
2790
2790
2790
2790
305
2790
69
2790
1847
2790
2790
390
390
12
390
| //
// Copyright (c) Microsoft and contributors. All rights reserved.
//
// 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.
//
// Module dependencies.
var util = require('util');
var azureCommon = require('./../../../common/common');
var azureutil = azureCommon.util;
var SR = azureCommon.SR;
var Constants = azureCommon.Constants;
var edmHandler = require('./edmhandler');
var prefixLength = Constants.TableConstants.ODATA_PREFIX.length;
var suffixLength = Constants.TableConstants.ODATA_TYPE_SUFFIX.length;
exports = module.exports;
/* Serialize an entity to an Odata (Json based) payload
* Input must be in the following format:
* { stringValue: { '$': 'Edm.String', '_': 'my string' }, myInt: { '$': 'Edm.Int32', '_': 3 } }
*/
exports.serializeJson = function (entity) {
var result = {};
for (var propName in entity) {
// ignore if .metadata or null or undefined
if ((propName !== Constants.TableConstants.ODATA_METADATA_MARKER) && !azureutil.objectIsNull(entity[propName][Constants.TableConstants.ODATA_VALUE_MARKER])) {
var value = entity[propName][Constants.TableConstants.ODATA_VALUE_MARKER];
var type = entity[propName][Constants.TableConstants.ODATA_TYPE_MARKER];
if (type === undefined) {
type = edmHandler.propertyType(value, true);
}
result[propName] = edmHandler.serializeValue(type, value);
if (edmHandler.isTypeRequired(type, value)) {
result[propName + Constants.TableConstants.ODATA_TYPE_SUFFIX] = type;
}
}
}
var replacer = function(key, value) {
if (value === Number.POSITIVE_INFINITY) {
return 'Infinity';
}
if (value === Number.NEGATIVE_INFINITY) {
return '-Infinity';
}
if (Number.isNaN(value)) {
return 'NaN';
}
return value;
};
return JSON.stringify(result, replacer);
};
/*
Input: The body of the HTTP response from the server from a table list as JSON (responseObject.response.body).
Return:
This will return an array in the following format:
[
tableName1,
tableName2
]
For example,
[
myTable1,
myTable2
]
*/
exports.parseJsonTables = function (response) {
var result = [];
Eif (response.value) {
for (var i = 0; i < response.value.length; i++) {
var entity = response.value[i].TableName;
result.push(entity);
}
}
return result;
};
/*
Input: The body of the HTTP response from the server from a table query as JSON (responseObject.response.body).
Return:
This will return an array in the following format:
[
{{ '$': edmHandler1, '_': value1}, { '$': edmHandler2, '_': value2}, { '$': edmHandler3, '_': value3}},
{{ '$': edmHandler4, '_': value4}, { '$': edmHandler5, '_': value5}, { '$': edmHandler6, '_': value6}}
]
For example,
[
{{ '$': Edm.Int32, '_': 42}, { '$': Edm.String, '_': 'sample string'}, { '$': Edm.Boolean, '_': false}},
{{ '$': Edm.Int64, '_': 42}, { '$': Edm.String, '_': 'sample string 2'}, { '$': Edm.Boolean, '_': true}}
]
*/
exports.parseJsonEntities = function (response, autoResolveProperties, propertyResolver, entityResolver) {
Iif (!response.value) {
return [exports.parseJsonSingleEntity(response, autoResolveProperties, propertyResolver, entityResolver)];
} else {
var result = [];
for (var i = 0; i < response.value.length; i++) {
var rawEntity = response.value[i];
var entity = exports.parseJsonSingleEntity(rawEntity, autoResolveProperties, propertyResolver, entityResolver);
result.push(entity);
}
return result;
}
};
exports.parseJsonSingleEntity = function(rawEntity, autoResolveProperties, propertyResolver, entityResolver) {
var rawEntityProperties = {};
var entityPropertyTypes = {PartitionKey: 'Edm.String', RowKey: 'Edm.String', Timestamp: 'Edm.DateTime'};
var odataMetadata = {};
// parse properties
for (var entityPropertyName in rawEntity) {
if (azureutil.stringStartsWith(entityPropertyName, Constants.TableConstants.ODATA_PREFIX)) {
odataMetadata[entityPropertyName.slice(prefixLength)] = rawEntity[entityPropertyName];
} else if (azureutil.stringEndsWith(entityPropertyName, Constants.TableConstants.ODATA_TYPE_SUFFIX)) {
entityPropertyTypes[entityPropertyName.slice(0, entityPropertyName.length - suffixLength)] = rawEntity[entityPropertyName];
} else {
rawEntityProperties[entityPropertyName] = rawEntity[entityPropertyName];
}
}
// make sure etag is set
if (!odataMetadata.etag && rawEntityProperties.Timestamp) {
var timestampString = new Buffer(rawEntityProperties.Timestamp).toString();
odataMetadata.etag = 'W/"datetime\'' + timestampString + '\'"';
}
var entity = {};
for (var entityPropertyName in rawEntityProperties) {
Eif (rawEntityProperties.hasOwnProperty(entityPropertyName)) {
// set the type, if given in the response
var entityPropertyType = entityPropertyTypes[entityPropertyName];
entity[entityPropertyName] = {};
// use the given property resolver if present, otherwise infer type if undefined
if (propertyResolver) {
// partition key, row key, name, value, type if present
entityPropertyType = propertyResolver(rawEntityProperties.PartitionKey, rawEntityProperties.RowKey, entityPropertyName, rawEntityProperties[entityPropertyName], entityPropertyType);
}
if (!entityPropertyType && autoResolveProperties) {
entityPropertyType = edmHandler.propertyType(rawEntityProperties[entityPropertyName], false);
}
if (entityPropertyType) {
entity[entityPropertyName][Constants.TableConstants.ODATA_TYPE_MARKER] = entityPropertyType;
}
try {
entity[entityPropertyName][Constants.TableConstants.ODATA_VALUE_MARKER] = edmHandler.deserializeValueFromJson(entityPropertyType, rawEntityProperties[entityPropertyName]);
} catch (err) {
if (propertyResolver) {
// if a property resolver was used and the type is invalid, throw an appropriate error
throw new Error(util.format(SR.INVALID_PROPERTY_RESOLVER, entityPropertyName, entityPropertyType, rawEntityProperties[entityPropertyName]));
} else {
throw err;
}
}
}
}
entity[Constants.TableConstants.ODATA_METADATA_MARKER] = odataMetadata;
if (entityResolver) {
entity = entityResolver(entity);
}
return entity;
};
|