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
201
|
using System;
using System.Globalization;
using System.Xml;
namespace MediaBrowser.Controller.Extensions
{
/// <summary>
/// Class XmlExtensions
/// </summary>
public static class XmlExtensions
{
/// <summary>
/// Safes the get int32.
/// </summary>
/// <param name="doc">The doc.</param>
/// <param name="path">The path.</param>
/// <returns>System.Int32.</returns>
public static int SafeGetInt32(this XmlDocument doc, string path)
{
return SafeGetInt32(doc, path, 0);
}
/// <summary>
/// Safes the get int32.
/// </summary>
/// <param name="doc">The doc.</param>
/// <param name="path">The path.</param>
/// <param name="defaultInt">The default int.</param>
/// <returns>System.Int32.</returns>
public static int SafeGetInt32(this XmlDocument doc, string path, int defaultInt)
{
XmlNode rvalNode = doc.SelectSingleNode(path);
if (rvalNode != null && rvalNode.InnerText.Length > 0)
{
int rval;
if (Int32.TryParse(rvalNode.InnerText, out rval))
{
return rval;
}
}
return defaultInt;
}
/// <summary>
/// The _us culture
/// </summary>
private static readonly CultureInfo _usCulture = new CultureInfo("en-US");
/// <summary>
/// Safes the get single.
/// </summary>
/// <param name="doc">The doc.</param>
/// <param name="path">The path.</param>
/// <param name="minValue">The min value.</param>
/// <param name="maxValue">The max value.</param>
/// <returns>System.Single.</returns>
public static float SafeGetSingle(this XmlDocument doc, string path, float minValue, float maxValue)
{
XmlNode rvalNode = doc.SelectSingleNode(path);
if (rvalNode != null && rvalNode.InnerText.Length > 0)
{
float rval;
// float.TryParse is local aware, so it can be probamatic, force us culture
if (float.TryParse(rvalNode.InnerText, NumberStyles.AllowDecimalPoint, _usCulture, out rval))
{
if (rval >= minValue && rval <= maxValue)
{
return rval;
}
}
}
return minValue;
}
/// <summary>
/// Safes the get string.
/// </summary>
/// <param name="doc">The doc.</param>
/// <param name="path">The path.</param>
/// <returns>System.String.</returns>
public static string SafeGetString(this XmlDocument doc, string path)
{
return SafeGetString(doc, path, null);
}
/// <summary>
/// Safes the get string.
/// </summary>
/// <param name="doc">The doc.</param>
/// <param name="path">The path.</param>
/// <param name="defaultString">The default string.</param>
/// <returns>System.String.</returns>
public static string SafeGetString(this XmlDocument doc, string path, string defaultString)
{
XmlNode rvalNode = doc.SelectSingleNode(path);
if (rvalNode != null && rvalNode.InnerText.Trim().Length > 0)
{
return rvalNode.InnerText;
}
return defaultString;
}
/// <summary>
/// Safes the get string.
/// </summary>
/// <param name="doc">The doc.</param>
/// <param name="path">The path.</param>
/// <returns>System.String.</returns>
public static string SafeGetString(this XmlNode doc, string path)
{
return SafeGetString(doc, path, null);
}
/// <summary>
/// Safes the get string.
/// </summary>
/// <param name="doc">The doc.</param>
/// <param name="path">The path.</param>
/// <param name="defaultValue">The default value.</param>
/// <returns>System.String.</returns>
public static string SafeGetString(this XmlNode doc, string path, string defaultValue)
{
XmlNode rvalNode = doc.SelectSingleNode(path);
if (rvalNode != null && rvalNode.InnerText.Length > 0)
{
return rvalNode.InnerText;
}
return defaultValue;
}
/// <summary>
/// Reads the string safe.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns>System.String.</returns>
public static string ReadStringSafe(this XmlReader reader)
{
var val = reader.ReadElementContentAsString();
return string.IsNullOrWhiteSpace(val) ? null : val;
}
/// <summary>
/// Reads the value safe.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns>System.String.</returns>
public static string ReadValueSafe(this XmlReader reader)
{
reader.Read();
var val = reader.Value;
return string.IsNullOrWhiteSpace(val) ? null : val;
}
/// <summary>
/// Reads a float from the current element of an XmlReader
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns>System.Single.</returns>
public static float ReadFloatSafe(this XmlReader reader)
{
string valueString = reader.ReadElementContentAsString();
float value = 0;
if (!string.IsNullOrWhiteSpace(valueString))
{
// float.TryParse is local aware, so it can be probamatic, force us culture
float.TryParse(valueString, NumberStyles.AllowDecimalPoint, _usCulture, out value);
}
return value;
}
/// <summary>
/// Reads an int from the current element of an XmlReader
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns>System.Int32.</returns>
public static int ReadIntSafe(this XmlReader reader)
{
string valueString = reader.ReadElementContentAsString();
int value = 0;
if (!string.IsNullOrWhiteSpace(valueString))
{
int.TryParse(valueString, out value);
}
return value;
}
}
}
|
