[Quantproject-developers] QuantProject/b4_Business/a07_DataProviders HistoricalMarketValueProvider.cs, 1.2, 1.3

[Glauco S. <gla...@us...>]

Update of /cvsroot/quantproject/QuantProject/b4_Business/a07_DataProviders
In directory sfp-cvsdas-2.v30.ch3.sourceforge.com:/tmp/cvs-serv24380/a07_DataProviders

Modified Files:
	HistoricalMarketValueProvider.cs 
Log Message:
The interface IHistoricalMarketValueProvider is now implemented

A new public method
WereAllExchanged( ICollection<string> tickers , DateTime dateTime )
has been added.
It returns true iif all the given tickers were traded at the given DateTime.

A new public method
GetDateTimesWithMarketValues( string ticker , History history )
has been added
It returns the subset of DateTimes when ticker is exchanged

Index: HistoricalMarketValueProvider.cs
===================================================================
RCS file: /cvsroot/quantproject/QuantProject/b4_Business/a07_DataProviders/HistoricalMarketValueProvider.cs,v
retrieving revision 1.2
retrieving revision 1.3
diff -C2 -d -r1.2 -r1.3
*** HistoricalMarketValueProvider.cs	20 Nov 2008 20:49:58 -0000	1.2
--- HistoricalMarketValueProvider.cs	28 Mar 2010 14:30:42 -0000	1.3
***************
*** 22,25 ****
--- 22,26 ----
  
  using System;
+ using System.Collections.Generic;
  
  using QuantProject.ADT.Histories;
***************
*** 34,38 ****
  	/// </summary>
  	[Serializable]
! 	public abstract class HistoricalMarketValueProvider : ILogDescriptor
  	{
  		public string Description
--- 35,40 ----
  	/// </summary>
  	[Serializable]
! 	public abstract class HistoricalMarketValueProvider :
! 		IHistoricalMarketValueProvider , ILogDescriptor
  	{
  		public string Description
***************
*** 76,79 ****
--- 78,101 ----
  		public abstract bool WasExchanged( string ticker , DateTime dateTime );
  		
+ 		/// <summary>
+ 		/// True iif all the given tickers were traded at the given DateTime
+ 		/// </summary>
+ 		/// <param name="tickers"></param>
+ 		/// <param name="dateTime"></param>
+ 		/// <returns></returns>
+ 		public virtual bool WereAllExchanged( ICollection<string> tickers , DateTime dateTime )
+ 		{
+ 			IEnumerator<string>	tickersEnumerator = tickers.GetEnumerator();
+ 			tickersEnumerator.Reset();
+ 			bool wereAllExchanged = true;
+ 			bool isEndOfCollection = !tickersEnumerator.MoveNext();
+ 			while ( wereAllExchanged && !isEndOfCollection )
+ 			{
+ 				wereAllExchanged = this.WasExchanged( tickersEnumerator.Current , dateTime );
+ 				isEndOfCollection = !tickersEnumerator.MoveNext();
+ 			}
+ 			return wereAllExchanged;
+ 		}
+ 		
  		#region GetQuotes
  		
***************
*** 95,99 ****
  		
  		private void addMarketValue( string ticker , int historyIndex ,
! 		                      History	history , History quotes )
  		{
  			DateTime currentDateTime =
--- 117,121 ----
  		
  		private void addMarketValue( string ticker , int historyIndex ,
! 		                            History	history , History quotes )
  		{
  			DateTime currentDateTime =
***************
*** 109,113 ****
  		}
  		public History GetMarketValues( string ticker ,
! 		                         History history )
  		{
  			History quotes = new History();
--- 131,135 ----
  		}
  		public History GetMarketValues( string ticker ,
! 		                               History history )
  		{
  			History quotes = new History();
***************
*** 117,120 ****
--- 139,159 ----
  		}
  		#endregion GetQuotes
+ 		
+ 		#region GetDateTimesWithMarketValues
+ 		/// <summary>
+ 		/// returns the subset of DateTimes when ticker is exchanged
+ 		/// </summary>
+ 		/// <param name="ticker"></param>
+ 		/// <param name="history">DateTimes returned are a subset of this parameter</param>
+ 		/// <returns></returns>
+ 		public History GetDateTimesWithMarketValues( string ticker , History history )
+ 		{
+ 			History dateTimesWithMarketValues = new History();
+ 			foreach( DateTime dateTime in history.Keys )
+ 				if ( this.WasExchanged( ticker , dateTime ) )
+ 					dateTimesWithMarketValues.Add( dateTime , dateTime );
+ 			return dateTimesWithMarketValues;
+ 		}
+ 		#endregion GetDateTimesWithMarketValues
  	}
  }