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1 using System;
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2 using System.IO;
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3 using System.Runtime.Serialization.Json;
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4 using System.Text;
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5
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6 namespace BLToolkit.Mapping.MemberMappers
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7 {
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8 public class JSONSerialisationMapper : MemberMapper
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9 {
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10 public override void SetValue(object o, object value)
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11 {
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12 if (value != null) this.MemberAccessor.SetValue(o, Deserialize(value.ToString()));
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13 }
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14
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15 public override object GetValue(object o)
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16 {
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17 return this.serialize(this.MemberAccessor.GetValue(o));
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18 }
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19
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20 private string serialize(object obj)
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21 {
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22 if (obj == null) return null;
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23
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24 DataContractJsonSerializer ser = new DataContractJsonSerializer(this.Type);
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25 MemoryStream ms = new MemoryStream();
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26 ser.WriteObject(ms, obj);
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27 string jsonString = Encoding.UTF8.GetString(ms.ToArray());
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28 ms.Close();
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29 return jsonString;
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30 }
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31
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32 object Deserialize(string txt)
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33 {
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34 object retVal = null;
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35 if (string.IsNullOrEmpty(txt)) return null;
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36
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37 try
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38 {
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39 DataContractJsonSerializer ser = new DataContractJsonSerializer(this.Type);
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40 MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(txt));
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41 retVal = ser.ReadObject(ms);
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42 }
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43 catch (Exception)
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44 {
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45 }
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46 return retVal;
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47 }
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48 }
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49 }
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