mcs/class/System.XML/System.Xml.Serialization/XmlSchemas.cs

   1 // \r
   2 // System.Xml.Serialization.XmlSchemas \r
   3 //\r
   4 // Author:\r
   5 //   Tim Coleman (tim@timcoleman.com)\r
   6 //\r
   7 // Copyright (C) Tim Coleman, 2002\r
   8 //\r
   9 \r
  10 using System.Collections;\r
  11 using System.Xml.Schema;\r
  12 \r
  13 namespace System.Xml.Serialization {\r
  14         public class XmlSchemas : CollectionBase {\r
  15 \r
  16                 #region Fields\r
  17                 private static string msdataNS = "urn:schemas-microsoft-com:xml-msdata";\r
  18 \r
  19                 Hashtable table = new Hashtable ();\r
  20 \r
  21                 #endregion\r
  22 \r
  23                 #region Constructors\r
  24 \r
  25                 public XmlSchemas ()\r
  26                 {\r
  27                 }\r
  28 \r
  29                 #endregion // Constructors\r
  30 \r
  31                 #region Properties\r
  32 \r
  33                 public XmlSchema this [int index] {\r
  34                         get { \r
  35                                 if (index < 0 || index > Count)\r
  36                                         throw new ArgumentOutOfRangeException ();\r
  37 \r
  38                                 return (XmlSchema) List [index]; \r
  39                         }\r
  40                         set { List [index] = value; }\r
  41                 }\r
  42 \r
  43                 public XmlSchema this [string ns] {\r
  44                         get { return (XmlSchema) table[ns!=null?ns:""]; }\r
  45                 }\r
  46 \r
  47                 #endregion // Properties\r
  48 \r
  49                 #region Methods\r
  50 \r
  51                 public int Add (XmlSchema schema)\r
  52                 {\r
  53                         Insert (Count, schema);\r
  54                         return (Count - 1);\r
  55                 }\r
  56 \r
  57                 public void Add (XmlSchemas schemas) \r
  58                 {\r
  59                         foreach (XmlSchema schema in schemas) \r
  60                                 Add (schema);\r
  61                 }\r
  62 \r
  63                 public bool Contains (XmlSchema schema)\r
  64                 {\r
  65                         return List.Contains (schema);\r
  66                 }\r
  67 \r
  68                 public void CopyTo (XmlSchema[] array, int index) \r
  69                 {\r
  70                         List.CopyTo (array, index);\r
  71                 }\r
  72 \r
  73                 public object Find (XmlQualifiedName name, Type type)\r
  74                 {\r
  75                         XmlSchema schema = table [name.Namespace] as XmlSchema;\r
  76                         if (schema == null)\r
  77                                 return null;\r
  78 \r
  79                         if (!schema.IsCompiled) {\r
  80                                 schema.Compile (null);\r
  81                         }\r
  82 \r
  83                         XmlSchemaObjectTable tbl = null;\r
  84 \r
  85                         if (type == typeof (XmlSchemaSimpleType) || type == typeof (XmlSchemaComplexType))\r
  86                                 tbl = schema.SchemaTypes;\r
  87                         else if (type == typeof (XmlSchemaAttribute))\r
  88                                 tbl = schema.Attributes;\r
  89                         else if (type == typeof (XmlSchemaAttributeGroup))\r
  90                                 tbl = schema.AttributeGroups;\r
  91                         else if (type == typeof (XmlSchemaElement))\r
  92                                 tbl = schema.Elements;\r
  93                         else if (type == typeof (XmlSchemaGroup))\r
  94                                 tbl = schema.Groups;\r
  95                         else if (type == typeof (XmlSchemaNotation))\r
  96                                 tbl = schema.Notations;\r
  97 \r
  98                         object res = (tbl != null) ? tbl [name] : null;\r
  99                         if (res != null && res.GetType () != type) return null;\r
 100                         else return res;\r
 101                 }\r
 102 \r
 103                 public int IndexOf (XmlSchema schema)\r
 104                 {\r
 105                         return List.IndexOf (schema);\r
 106                 }\r
 107 \r
 108                 public void Insert (int index, XmlSchema schema)\r
 109                 {\r
 110                         List.Insert (index, schema);\r
 111                 }\r
 112 \r
 113                 public static bool IsDataSet (XmlSchema schema)\r
 114                 {\r
 115                         XmlSchemaElement el = schema.Items.Count == 1 ?\r
 116                                 schema.Items [0] as XmlSchemaElement : null;\r
 117                         if (el != null && el.UnhandledAttributes.Length > 0) {\r
 118                                 for (int i = 0; i < el.UnhandledAttributes.Length; i++) {\r
 119                                         XmlAttribute attr = el.UnhandledAttributes [i];\r
 120                                         if (attr.NamespaceURI == msdataNS && attr.LocalName == "IsDataSet")\r
 121                                                 return (attr.Value.ToLower (System.Globalization.CultureInfo.InvariantCulture) == "true");\r
 122                                 }\r
 123                         }\r
 124                         return false;\r
 125                 }\r
 126 \r
 127                 protected override void OnClear ()\r
 128                 {\r
 129                         table.Clear ();\r
 130                 }\r
 131 \r
 132                 protected override void OnInsert (int index, object value)\r
 133                 {\r
 134                         string ns = ((XmlSchema) value).TargetNamespace;\r
 135                         if (ns == null) ns = "";\r
 136                         table [ns] = value;\r
 137                 }\r
 138 \r
 139                 protected override void OnRemove (int index, object value)\r
 140                 {\r
 141                         table.Remove (value);\r
 142                 }\r
 143 \r
 144                 protected override void OnSet (int index, object oldValue, object newValue)\r
 145                 {\r
 146                         string ns = ((XmlSchema) oldValue).TargetNamespace;\r
 147                         if (ns == null) ns = "";\r
 148                         table [ns] = newValue;\r
 149                 }\r
 150         \r
 151                 public void Remove (XmlSchema schema)\r
 152                 {\r
 153                         List.Remove (schema);\r
 154                 }\r
 155 \r
 156                 #endregion // Methods\r
 157         }\r
 158 }