MonodroidStockPortfolio/MonoDroid.FileHelpers/ErrorHandling/ConvertException.cs

#region "  © Copyright 2005-07 to Marcos Meli - http://www.marcosmeli.com.ar" 

// Errors, suggestions, contributions, send a mail to: marcos@filehelpers.com.

#endregion

using System;
using System.Diagnostics;

namespace FileHelpers
{
	/// <summary>
	/// Indicates that a string value can't be converted to a dest type.
	/// </summary>
	public sealed class ConvertException : FileHelpersException
	{
#if NET_2_0
        [DebuggerBrowsable(DebuggerBrowsableState.Never)]
#endif
        internal string mFieldName = null;
#if NET_2_0
        [DebuggerBrowsable(DebuggerBrowsableState.Never)]
#endif
        internal int mLineNumber = -1;
#if NET_2_0
        [DebuggerBrowsable(DebuggerBrowsableState.Never)]
#endif
        internal int mColumnNumber = -1;
#if NET_2_0
        [DebuggerBrowsable(DebuggerBrowsableState.Never)]
#endif
        private string mFieldStringValue = null;

#if NET_2_0
        [DebuggerBrowsable(DebuggerBrowsableState.Never)]
#endif
        private string mMessageExtra = string.Empty;

#if NET_2_0
        [DebuggerBrowsable(DebuggerBrowsableState.Never)]
#endif
        private Type mFieldType;

		/// <summary>The destination type.</summary>
		public Type FieldType
		{
			get { return mFieldType; }
		}

		/// <summary>The value that cant be converterd. (null for unknown)</summary>
		public string FieldStringValue
		{
			get { return mFieldStringValue; }
		}

        /// <summary>Extra info about the error.</summary>
        public string MessageExtra
        {
            get { return mMessageExtra; }
        }

        /// <summary>The name of the field related to the exception. (null for unknown)</summary>
		public string FieldName
		{
			get { return mFieldName; }
        }

        /// <summary>The line where the error was found. (-1 is unknown)</summary>
        public int LineNumber
        {
            get { return mLineNumber; }
        }

        /// <summary>The estimate column where the error was found. (-1 is unknown)</summary>
        public int ColumnNumber
        {
            get { return mColumnNumber; }
        }

    
		/// <summary>
		/// Create a new ConvertException object
		/// </summary>
		/// <param name="origValue">The value to convert.</param>
		/// <param name="destType">The destination Type.</param>
		public ConvertException(string origValue, Type destType) 
            : this(origValue, destType, string.Empty)
		{
		}


        /// <summary>
		/// Create a new ConvertException object
		/// </summary>
		/// <param name="origValue">The value to convert.</param>
		/// <param name="destType">The destination Type.</param>
		/// <param name="extraInfo">Aditional info of the error.</param>
        public ConvertException(string origValue, Type destType, string extraInfo)
            : this(origValue, destType, string.Empty, -1, -1, extraInfo)
        { 
        }

		/// <summary>
		/// Create a new ConvertException object
		/// </summary>
		/// <param name="origValue">The value to convert.</param>
		/// <param name="destType">The destination Type.</param>
		/// <param name="extraInfo">Aditional info of the error.</param>
        /// <param name="columnNumber">The estimated column number.</param>
        /// <param name="lineNumber">The line where the error was found.</param>
        /// <param name="fieldName">The name of the field with the error</param>
        public ConvertException(string origValue, Type destType, string fieldName, int lineNumber, int columnNumber, string extraInfo)
            : base(MessageBuilder(origValue, destType, fieldName, lineNumber, columnNumber, extraInfo))
		{
			mFieldStringValue = origValue;
			mFieldType = destType;
            mLineNumber = lineNumber;
            mColumnNumber = columnNumber;
            mFieldName = fieldName;
            mMessageExtra = extraInfo;
		}

        private static string MessageBuilder(string origValue, Type destType, string fieldName, int lineNumber, int columnNumber, string extraInfo)
        {
            string res = string.Empty;
            if (lineNumber >= 0)
                res += "Line: " + lineNumber.ToString() + ". ";

            if (columnNumber >= 0)
                res += "Column: " + columnNumber.ToString() + ". ";

            if (fieldName != null && fieldName != string.Empty)
                res += "Field: " + fieldName + ". ";

            if (origValue != null && destType != null)
                res += "Error Converting '" + origValue + "' to type: '" + destType.Name + "'. ";
            
            res += extraInfo;

            return res;
        }



        internal static ConvertException ReThrowException(ConvertException ex, string fieldName, int line, int column)
        {
            return new ConvertException(ex.FieldStringValue, ex.mFieldType, fieldName, line, column, ex.mMessageExtra);
        }
    }
}