mcs/class/System.Web/System.Web/HttpStaticObjectsCollection.cs

   1 using System;\r
   2 using System.IO;\r
   3 using System.Collections;\r
   4 \r
   5 namespace System.Web {\r
   6    public sealed class HttpStaticObjectsCollection : ICollection, IEnumerable {\r
   7       private Hashtable _Objects;\r
   8 \r
   9       // Needs to hold object items that can be latebound and can be serialized\r
  10       public HttpStaticObjectsCollection() {\r
  11          _Objects = new Hashtable();\r
  12       }\r
  13 \r
  14       public object GetObject(string name) {\r
  15          return this[name];\r
  16       }\r
  17 \r
  18       public IEnumerator GetEnumerator() {\r
  19          return _Objects.GetEnumerator ();\r
  20       }\r
  21       \r
  22       public void CopyTo(Array array, int index) {\r
  23          _Objects.CopyTo (array, index);\r
  24       }   \r
  25 \r
  26       internal IDictionary GetObjects() {\r
  27          return _Objects;\r
  28       }\r
  29 \r
  30       public object this[string name] {\r
  31          get {\r
  32             return _Objects [name];\r
  33          }\r
  34       }\r
  35 \r
  36       public int Count {\r
  37          get {\r
  38             return _Objects.Count;\r
  39          }\r
  40       }\r
  41 \r
  42       public bool IsReadOnly {\r
  43          get {\r
  44             return true;\r
  45          }\r
  46       }\r
  47 \r
  48       public bool IsSynchronized {\r
  49          get {\r
  50             return false;\r
  51          }\r
  52       }\r
  53 \r
  54       public object SyncRoot {\r
  55          get {\r
  56             return this;\r
  57          }\r
  58       }\r
  59 \r
  60            private void Set (string name, object obj)\r
  61            {\r
  62                    _Objects [name] = obj;\r
  63            }\r
  64            \r
  65            internal void Serialize (BinaryWriter w)\r
  66            {\r
  67                    lock (_Objects) {\r
  68                            w.Write (Count);\r
  69                            foreach (string key in _Objects.Keys) {\r
  70                                    w.Write (key);\r
  71                                    object value = _Objects [key];\r
  72                                    if (value == null) {\r
  73                                            w.Write (System.Web.Util.AltSerialization.NullIndex);\r
  74                                            continue;\r
  75                                    }\r
  76                                    \r
  77                                    System.Web.Util.AltSerialization.SerializeByType (w, value);\r
  78                            }\r
  79                    }\r
  80            }\r
  81 \r
  82            internal static HttpStaticObjectsCollection Deserialize (BinaryReader r)\r
  83            {\r
  84                    HttpStaticObjectsCollection result = new HttpStaticObjectsCollection ();\r
  85                    for (int i = r.ReadInt32 (); i > 0; i--) {\r
  86                            string key = r.ReadString ();\r
  87                            int index = r.ReadInt32 ();\r
  88                            if (index == System.Web.Util.AltSerialization.NullIndex)\r
  89                                    result.Set (key, null);\r
  90                            else\r
  91                                    result.Set (key, System.Web.Util.AltSerialization.DeserializeFromIndex (index, r));\r
  92                    }\r
  93                    \r
  94                    return result;\r
  95            }\r
  96 \r
  97            internal byte [] ToByteArray ()\r
  98            {\r
  99                    MemoryStream stream = null;\r
 100                    try {\r
 101                            stream = new MemoryStream ();\r
 102                            Serialize (new BinaryWriter (stream));\r
 103                            return stream.GetBuffer ();\r
 104                    } catch {\r
 105                            throw;\r
 106                    } finally {\r
 107                            if (stream != null)\r
 108                                    stream.Close ();\r
 109                    }\r
 110            }\r
 111 \r
 112            internal static HttpStaticObjectsCollection FromByteArray (byte [] data)\r
 113            {\r
 114                    HttpStaticObjectsCollection objs = null;\r
 115                    MemoryStream stream = null;\r
 116                    try {\r
 117                            stream = new MemoryStream (data);\r
 118                            objs = Deserialize (new BinaryReader (stream));\r
 119                    } catch {\r
 120                            throw;\r
 121                    } finally {\r
 122                            if (stream != null)\r
 123                                    stream.Close ();\r
 124                    }\r
 125                    return objs;\r
 126            }\r
 127    }\r
 128 }\r