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1 ???using System; |
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2 using System.IO; |
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3 using System.Text; |
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4 using System.Collections.Generic; |
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5 |
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6 namespace UCIS.Pml { |
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7 public class PmlBinaryRW : IPmlRW { |
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8 private PmlBinaryReader pReader; |
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9 private PmlBinaryWriter pWriter; |
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10 |
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11 public PmlBinaryRW(Stream Stream) { |
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12 pReader = new PmlBinaryReader(Stream); |
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13 pWriter = new PmlBinaryWriter(Stream); |
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14 } |
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15 public PmlBinaryRW(Stream Stream, Encoding Encoding) { |
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16 pReader = new PmlBinaryReader(Stream, Encoding); |
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17 pWriter = new PmlBinaryWriter(Stream, Encoding); |
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18 } |
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19 |
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20 public PmlElement ReadMessage() { |
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21 return pReader.ReadMessage(); |
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22 } |
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23 |
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24 public void WriteMessage(PmlElement Message) { |
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25 pWriter.WriteMessage(Message); |
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26 } |
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27 |
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28 public PmlBinaryReader Reader { |
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29 get { return pReader; } |
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30 } |
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31 public PmlBinaryWriter Writer { |
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32 get { return pWriter; } |
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33 } |
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34 } |
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35 |
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36 public class PmlBinaryWriter : IPmlWriter { |
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37 //private BinaryWriter pWriter; |
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38 private Stream pStream; |
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39 private Encoding pEncoding; |
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40 |
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41 /*public PmlBinaryWriter(BinaryWriter Writer) { |
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42 pWriter = Writer; |
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43 }*/ |
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44 public PmlBinaryWriter(Stream Stream) { |
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45 //pWriter = new BinaryWriter(Stream); |
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46 pStream = Stream; |
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47 pEncoding = Encoding.UTF8; |
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48 } |
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49 public PmlBinaryWriter(Stream Stream, Encoding Encoding) { |
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50 //pWriter = new BinaryWriter(Stream, Encoding); |
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51 pStream = Stream; |
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52 pEncoding = Encoding; |
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53 } |
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54 |
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55 /*public BinaryWriter BaseWriter { |
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56 get { return pWriter; } |
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57 set { pWriter = value; } |
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58 }*/ |
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59 |
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60 public void WriteMessage(PmlElement Message) { |
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61 MemoryStream stream = new MemoryStream(); |
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62 BinaryWriter writer = new BinaryWriter(stream, pEncoding); |
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63 WriteMessageTo(Message, writer); |
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64 lock (pStream) { |
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65 stream.WriteTo(pStream); |
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66 pStream.Flush(); |
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67 } |
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68 } |
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69 |
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70 public static void WriteMessageTo(PmlElement Message, BinaryWriter Writer) { |
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71 lock (Writer) { |
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72 Writer.Write((byte)255); |
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73 WriteElementTo(Message, Writer); |
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74 Writer.Write((byte)255); |
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75 Writer.Flush(); |
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76 } |
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77 } |
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78 |
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79 private static void WriteElementTo(PmlElement Element, BinaryWriter Writer) { |
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80 //byte[] Buffer = null; |
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81 if (Element == null) { |
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82 //Writer.Write((byte)PmlElementType.Null); |
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83 Writer.Write((byte)0); |
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84 return; |
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85 } |
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86 //Writer.Write((byte)Element.Type); |
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87 switch (Element.Type) { |
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88 case PmlType.Null: |
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89 Writer.Write((byte)0); |
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90 break; |
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91 case PmlType.Dictionary: |
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92 Writer.Write((byte)1); |
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93 foreach (KeyValuePair<string, PmlElement> Item in (PmlDictionary)Element) { |
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94 Writer.Write((byte)1); |
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95 Writer.Write(Item.Key); |
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96 WriteElementTo(Item.Value, Writer); |
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97 } |
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98 Writer.Write((byte)0); |
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99 break; |
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100 case PmlType.Collection: |
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101 Writer.Write((byte)2); |
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102 foreach (PmlElement Item in (PmlCollection)Element) { |
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103 Writer.Write((byte)1); |
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104 WriteElementTo(Item, Writer); |
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105 } |
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106 Writer.Write((byte)0); |
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107 break; |
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108 case PmlType.Binary: { |
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109 Writer.Write((byte)10); |
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110 Byte[] Buffer = Element.ToByteArray(); |
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111 if (Buffer == null) { |
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112 Writer.Write((int)0); |
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113 } else { |
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114 Writer.Write((int)Buffer.Length); |
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115 Writer.Write(Buffer); |
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116 } |
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117 } break; |
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118 case PmlType.String: |
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119 Writer.Write((byte)11); |
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120 string Str = Element.ToString(); |
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121 if (Str == null) { |
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122 Writer.Write(""); |
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123 } else { |
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124 Writer.Write(Str); |
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125 } |
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126 |
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127 break; |
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128 case PmlType.Integer: |
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129 Writer.Write((byte)20); |
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130 PmlInteger RMInt = (PmlInteger)Element; |
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131 if (RMInt.IsSigned) { |
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132 Writer.Write((byte)1); |
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133 Writer.Write((long)RMInt); |
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134 } else { |
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135 Writer.Write((byte)0); |
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136 Writer.Write((ulong)RMInt); |
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137 } |
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138 break; |
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139 default: |
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140 Writer.Write((byte)0); |
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141 Console.WriteLine("PmlBinaryRW: Can not encode PML type {0}", Element.Type); |
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142 break; |
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143 } |
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144 } |
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145 } |
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146 |
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147 public class PmlBinaryReader : IPmlReader { |
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148 private BinaryReader pReader; |
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149 |
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150 public PmlBinaryReader(BinaryReader Reader) { |
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151 pReader = Reader; |
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152 } |
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153 public PmlBinaryReader(Stream Stream) { |
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154 pReader = new BinaryReader(Stream); |
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155 } |
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156 public PmlBinaryReader(Stream Stream, Encoding Encoding) { |
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157 pReader = new BinaryReader(Stream, Encoding); |
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158 } |
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159 |
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160 public BinaryReader BaseReader { |
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161 get { return pReader; } |
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162 set { pReader = value; } |
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163 } |
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164 |
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165 public PmlElement ReadMessage() { |
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166 return ReadMessageFrom(pReader); |
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167 } |
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168 |
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169 public static PmlElement ReadMessageFrom(BinaryReader Reader) { |
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170 PmlElement Element = null; |
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171 lock (Reader) { |
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172 if (Reader.ReadByte() != 255) { |
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173 return null; |
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174 } |
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175 Element = ReadElementFrom(Reader); |
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176 if (Reader.ReadByte() != 255) { |
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177 return null; |
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178 } |
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179 } |
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180 return Element; |
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181 } |
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182 |
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183 private static PmlElement ReadElementFrom(BinaryReader Reader) { |
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184 Byte EType = Reader.ReadByte(); |
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185 switch (EType) { |
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186 case 0: return new PmlNull(); |
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187 case 1: |
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188 PmlDictionary ElementD = new PmlDictionary(); |
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189 do { |
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190 byte B = Reader.ReadByte(); |
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191 if (B == 0) return ElementD; |
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192 else if (B == 1) ElementD.Add(Reader.ReadString(), ReadElementFrom(Reader)); |
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193 else return null; |
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194 } |
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195 while (true); |
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196 case 2: |
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197 PmlCollection ElementC = new PmlCollection(); |
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198 do { |
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199 byte B = Reader.ReadByte(); |
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200 if (B == 0) return ElementC; |
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201 else if (B == 1) ElementC.Add(ReadElementFrom(Reader)); |
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202 else return null; |
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203 } |
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204 while (true); |
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205 case 10: |
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206 int Len = 0; |
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207 Len = Reader.ReadInt32(); |
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208 return new PmlBinary(Reader.ReadBytes(Len)); |
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209 case 11: |
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210 return new PmlString(Reader.ReadString()); |
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211 case 20: { |
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212 byte B = Reader.ReadByte(); |
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213 if (B == 0) return new PmlInteger(Reader.ReadUInt64()); |
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214 else if (B == 1) return new PmlInteger(Reader.ReadInt64()); |
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215 else return null; |
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216 |
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217 } |
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218 default: |
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219 throw new Exception("Unknown PML type code " + EType.ToString()); |
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220 } |
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221 } |
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222 } |
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223 } |
