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MarketDataLib/Utility/NVP.cs

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+using System;
+using System.Runtime.InteropServices;
+using System.Collections;
+using System.Text;
+using System.Collections.Generic;
+
+namespace MarketData.Utils
+{
+  public class NVPDictionary : Dictionary<String,NVP>
+  {
+    public NVPDictionary()
+    {
+    }
+  }
+  public class NVPCollections : List<NVPCollection>
+  {
+    public NVPCollections()
+    {
+    }
+    public NVPCollections(List<String> nvpCollections)
+    {
+      foreach(String nvpCollectionString in nvpCollections)Add(new NVPCollection(nvpCollectionString));
+    }
+    public List<String> ToList()
+    {
+      List<String> nvpCollections=new List<String>();
+      foreach(NVPCollection nvpCollection in this)nvpCollections.Add(nvpCollection.ToString());
+      return nvpCollections;
+    }
+  }
+  public class NVPCollection : List<NVP>
+  {
+    public NVPCollection()
+    {
+    }
+    public NVPCollection(String nvpCollectionString)
+    {
+      if(null==nvpCollectionString)return;
+      String[] nvpItems=nvpCollectionString.Split('|');
+      if(null==nvpItems)return;
+      for(int index=0;index<nvpItems.Length;index++)
+      {
+        Add(new NVP(nvpItems[index]));
+      }
+    }
+    public NVPDictionary ToDictionary()
+    {
+      NVPDictionary dict=new NVPDictionary();
+      foreach(NVP nvp in this)dict.Add(nvp.Name,nvp);
+      return dict;
+    }
+    public static NVPCollection FromString(String strNVPCollection)
+    {
+      return new NVPCollection(strNVPCollection);
+    }
+    public override String ToString()
+    {
+      StringBuilder sb=new StringBuilder();
+      for(int index=0;index<Count;index++)
+      {
+        NVP nvp=this[index];
+        sb.Append(nvp.ToString());
+        if(index<Count-1)sb.Append("|");
+      }
+      return sb.ToString();
+    }
+  }
+  public class NVP
+  {
+    public NVP(String name,String value)
+    {
+      Name=name;
+      Value=value;
+    }
+// This needs to work with nvpString assignment that contains embedded '=' signs.  For example Expression=a=1;b=2.   Name="Expression", Value="a=1;b=2"
+    public NVP(String nvpString)
+    {
+      if(null==nvpString)return;
+      String[] nvps=nvpString.Split('=');
+			if(nvps.Length<2)return;
+      Name=nvps[0].Trim();
+			if(2==nvps.Length)Value=nvps[1].Trim();
+			else
+			{
+				StringBuilder sb=new StringBuilder();
+				for(int itemIndex=1;itemIndex<nvps.Length;itemIndex++)
+				{
+				  sb.Append(nvps[itemIndex]);
+					if(itemIndex<nvps.Length-1)sb.Append("=");
+				}
+				Value=sb.ToString();
+			}
+    }
+    public T Get<T>()
+    {
+      T result=default(T);
+      try {result = (T)Convert.ChangeType(Value, typeof(T));}
+      catch {result = default(T);}
+      return result;
+    }
+    public String Name{get;set;}
+    public String Value{get;set;}
+    public override String ToString()
+    {
+      StringBuilder sb=new StringBuilder();
+      sb.Append(Name).Append("=").Append(Value);
+      return sb.ToString();
+    }
+  }
+}