@joebigelow / wix
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main
cs 169 lines 5.66 KB
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1 using System.Collections.Generic;
2 using System.Linq;
3 using System.Xml;
4
5 namespace TablesAndSymbols
6 {
7 class WixTableDefinition
8 {
9 public WixTableDefinition(string name, IEnumerable<WixColumnDefinition> columns, bool unreal, bool symbolless, string symbolDefinitionName, bool? symbolIdIsPrimaryKey)
10 {
11 this.Name = name;
12 this.VariableName = name.Replace("_", "");
13 this.Unreal = unreal;
14 this.Columns = columns?.ToArray();
15 this.Symbolless = symbolless;
16 this.SymbolDefinitionName = symbolless ? null : symbolDefinitionName ?? this.VariableName;
17 this.SymbolIdIsPrimaryKey = symbolIdIsPrimaryKey ?? DeriveSymbolIdIsPrimaryKey(this.Columns);
18 }
19
20 public string Name { get; }
21
22 public string VariableName { get; }
23
24 public string SymbolDefinitionName { get; }
25
26 public bool Unreal { get; }
27
28 public WixColumnDefinition[] Columns { get; }
29
30 public bool SymbolIdIsPrimaryKey { get; }
31
32 public bool Symbolless { get; }
33
34 static WixTableDefinition Read(XmlReader reader)
35 {
36 var empty = reader.IsEmptyElement;
37 string name = null;
38 string symbolDefinitionName = null;
39 var unreal = false;
40 bool? symbolIdIsPrimaryKey = null;
41 var symbolless = false;
42
43 while (reader.MoveToNextAttribute())
44 {
45 switch (reader.LocalName)
46 {
47 case "name":
48 name = reader.Value;
49 break;
50 case "symbolDefinitionName":
51 symbolDefinitionName = reader.Value;
52 break;
53 case "symbolIdIsPrimaryKey":
54 symbolIdIsPrimaryKey = reader.Value.Equals("yes");
55 break;
56 case "symbolless":
57 symbolless = reader.Value.Equals("yes");
58 break;
59 case "unreal":
60 unreal = reader.Value.Equals("yes");
61 break;
62 }
63 }
64
65 if (null == name)
66 {
67 throw new XmlException();
68 }
69
70 var columns = new List<WixColumnDefinition>();
71
72 // parse the child elements
73 if (!empty)
74 {
75 var done = false;
76
77 while (!done && reader.Read())
78 {
79 switch (reader.NodeType)
80 {
81 case XmlNodeType.Element:
82 switch (reader.LocalName)
83 {
84 case "columnDefinition":
85 var columnDefinition = WixColumnDefinition.Read(reader);
86 columns.Add(columnDefinition);
87 break;
88 default:
89 throw new XmlException();
90 }
91 break;
92 case XmlNodeType.EndElement:
93 done = true;
94 break;
95 }
96 }
97
98 if (!done)
99 {
100 throw new XmlException();
101 }
102 }
103
104 return new WixTableDefinition(name, columns.ToArray(), unreal, symbolless, symbolDefinitionName, symbolIdIsPrimaryKey);
105 }
106
107 static bool DeriveSymbolIdIsPrimaryKey(WixColumnDefinition[] columns)
108 {
109 return columns[0].PrimaryKey &&
110 columns[0].Type == ColumnType.String &&
111 columns[0].Category == ColumnCategory.Identifier &&
112 !columns[0].Name.EndsWith("_") &&
113 (columns.Length == 1 || !columns.Skip(1).Any(t => t.PrimaryKey));
114 }
115
116 public static List<WixTableDefinition> LoadCollection(string inputPath)
117 {
118 using (var reader = XmlReader.Create(inputPath))
119 {
120 reader.MoveToContent();
121
122 if ("tableDefinitions" != reader.LocalName)
123 {
124 throw new XmlException();
125 }
126
127 var empty = reader.IsEmptyElement;
128 var tableDefinitions = new List<WixTableDefinition>();
129
130 while (reader.MoveToNextAttribute())
131 {
132 }
133
134 // parse the child elements
135 if (!empty)
136 {
137 var done = false;
138
139 while (!done && reader.Read())
140 {
141 switch (reader.NodeType)
142 {
143 case XmlNodeType.Element:
144 switch (reader.LocalName)
145 {
146 case "tableDefinition":
147 tableDefinitions.Add(WixTableDefinition.Read(reader));
148 break;
149 default:
150 throw new XmlException();
151 }
152 break;
153 case XmlNodeType.EndElement:
154 done = true;
155 break;
156 }
157 }
158
159 if (!done)
160 {
161 throw new XmlException();
162 }
163 }
164
165 return tableDefinitions;
166 }
167 }
168 }
169 }