internal override ExtractedInfo ExtractFieldString(LineInfo line) { if (line.CurrentLength == 0) { if (mIsOptional) return ExtractedInfo.Empty; else throw new BadUsageException("End Of Line found processing the field: " + mFieldInfo.Name + " at line "+ line.mReader.LineNumber.ToString() + ". (You need to mark it as [FieldOptional] if you want to avoid this exception)"); } ExtractedInfo res; if (line.CurrentLength < this.mFieldLength) if (mFixedMode == FixedMode.AllowLessChars || mFixedMode == FixedMode.AllowVariableLength) res = new ExtractedInfo(line); else throw new BadUsageException("The string '" + line.CurrentString + "' (length " + line.CurrentLength.ToString() + ") at line "+ line.mReader.LineNumber.ToString() + " has less chars than the defined for " + mFieldInfo.Name + " (" + mFieldLength.ToString() + "). You can use the [FixedLengthRecord(FixedMode.AllowLessChars)] to avoid this problem."); else if (line.CurrentLength > mFieldLength && mIsArray == false && mIsLast && mFixedMode != FixedMode.AllowMoreChars && mFixedMode != FixedMode.AllowVariableLength) throw new BadUsageException("The string '" + line.CurrentString + "' (length " + line.CurrentLength.ToString() + ") at line "+ line.mReader.LineNumber.ToString() + " has more chars than the defined for the last field " + mFieldInfo.Name + " (" + mFieldLength.ToString() + ").You can use the [FixedLengthRecord(FixedMode.AllowMoreChars)] to avoid this problem."); else res = new ExtractedInfo(line, line.mCurrentPos + mFieldLength); return res; }
// object[] values, int index, ForwardReader reader internal object ExtractValue(LineInfo line) { //-> extract only what I need if (this.mInNewLine == true) { if (line.EmptyFromPos() == false) { throw new BadUsageException("Text '" + line.CurrentString + "' found before the new line of the field: " + mFieldInfo.Name + " (this is not allowed when you use [FieldInNewLine])"); } line.ReLoad(line.mReader.ReadNextLine()); if (line.mLineStr == null) { throw new BadUsageException("End of stream found parsing the field " + mFieldInfo.Name + ". Please check the class record."); } } ExtractedInfo info = ExtractFieldString(line); if (info.mCustomExtractedString == null) { line.mCurrentPos = info.ExtractedTo + 1; } line.mCurrentPos += mCharsToDiscard; //total; return(AssignFromString(info, line)); //-> discard the part that I use //TODO: Uncoment this for Quoted Handling // if (info.NewRestOfLine != null) // { // if (info.NewRestOfLine.Length < CharsToDiscard()) // return info.NewRestOfLine; // else // return info.NewRestOfLine.Substring(CharsToDiscard()); // } // else // { // int total; // if (info.CharsRemoved >= line.mLine.Length) // total = line.mLine.Length; // else // total = info.CharsRemoved + CharsToDiscard(); //return buffer.Substring(total); // } }
// public ConverterBase ConvertProvider // { // get { return mConvertProvider; } // set { mConvertProvider = value; } // } // // #endregion // #region " TrimMode " // // public TrimMode TrimMode // { // get { return mTrimMode; } // } // // #endregion // // #region " TrimChars " // // public char[] TrimChars // { // get { return mTrimChars; } // } // // #endregion // // #region " IsOptional " // // public bool IsOptional // { // get { return mIsOptional; } // } // // #endregion // // #region " NextIsOptional " // // internal bool NextIsOptional // { // get { return mNextIsOptional; } // set { mNextIsOptional = value; } // } // // #endregion // #region " InNewLine " // public bool InNewLine // { // get { return mInNewLine; } // } // // #endregion // // // #region " FieldType " // // public Type FieldType // { // get { return mFieldType; } // } // // #endregion #region " ExtractAndAssignFromString " internal string ExtractAndAssignFromString(string buffer, object record, ForwardReader reader) { //-> extract only what I need if (this.mInNewLine == true) { if (buffer.Trim() != String.Empty) { throw new BadUsageException("Text '" + buffer + "' found before the new line of the field: " + mFieldInfo.Name + " (this is not allowed when you use [FieldInNewLine])"); } buffer = reader.ReadNextLine(); if (buffer == null) { throw new BadUsageException("End of stream found parsing the field " + mFieldInfo.Name + ". Please check the class record."); } } ExtractedInfo info = ExtractFieldString(buffer, reader); AssignFromString(info.ExtractedString, record); //-> discard the part that I use if (info.NewRestOfLine != null) { if (info.NewRestOfLine.Length < CharsToDiscard()) { return(info.NewRestOfLine); } else { return(info.NewRestOfLine.Substring(CharsToDiscard())); } } else { int total; if (info.CharsRemoved >= buffer.Length) { total = buffer.Length; } else { total = info.CharsRemoved + CharsToDiscard(); } return(buffer.Substring(total)); } }
internal override ExtractedInfo ExtractFieldString(LineInfo line) { if (line.CurrentLength == 0) { if (mIsOptional) { return(ExtractedInfo.Empty); } else { throw new BadUsageException("End Of Line found processing the field: " + mFieldInfo.Name + " at line " + line.mReader.LineNumber.ToString() + ". (You need to mark it as [FieldOptional] if you want to avoid this exception)"); } } ExtractedInfo res; if (line.CurrentLength < this.mFieldLength) { if (mFixedMode == FixedMode.AllowLessChars || mFixedMode == FixedMode.AllowVariableLength) { res = new ExtractedInfo(line); } else { throw new BadUsageException("The string '" + line.CurrentString + "' (length " + line.CurrentLength.ToString() + ") at line " + line.mReader.LineNumber.ToString() + " has less chars than the defined for " + mFieldInfo.Name + " (" + mFieldLength.ToString() + "). You can use the [FixedLengthRecord(FixedMode.AllowLessChars)] to avoid this problem."); } } else if (line.CurrentLength > mFieldLength && mIsArray == false && mIsLast && mFixedMode != FixedMode.AllowMoreChars && mFixedMode != FixedMode.AllowVariableLength) { throw new BadUsageException("The string '" + line.CurrentString + "' (length " + line.CurrentLength.ToString() + ") at line " + line.mReader.LineNumber.ToString() + " has more chars than the defined for the last field " + mFieldInfo.Name + " (" + mFieldLength.ToString() + ").You can use the [FixedLengthRecord(FixedMode.AllowMoreChars)] to avoid this problem."); } else { res = new ExtractedInfo(line, line.mCurrentPos + mFieldLength); } return(res); }
protected override ExtractedInfo ExtractFieldString(string from, ForwardReader reader) { if (mIsOptional && from.Length == 0) { return(ExtractedInfo.Empty); } ExtractedInfo res; if (from.Length < this.mLength) { throw new FileHelperException("The string '" + from + "' (length " + from.Length.ToString() + ") don´t match the length of the field " + mFieldInfo.Name + " (" + mLength.ToString() + ")"); } else { res = new ExtractedInfo(from.Substring(0, this.mLength)); } return(res); }
private ExtractedInfo BasicExtractString(LineInfo line) { ExtractedInfo res; if (mIsLast) { res = new ExtractedInfo(line); } else { int sepPos; sepPos = line.IndexOf(mSeparator); if (sepPos == -1) { if (this.mNextIsOptional == false) { string msg = null; if (mIsFirst && line.EmptyFromPos()) { msg = "The line " + line.mReader.LineNumber.ToString() + " is empty. Maybe you need to use the attribute [IgnoreEmptyLines] in your record class."; } else { msg = "The delimiter '" + this.mSeparator + "' can´t be found after the field '" + this.mFieldInfo.Name + "' at line " + line.mReader.LineNumber.ToString() + " (the record has less fields, the delimiter is wrong or the next field must be marked as optional)."; } throw new FileHelpersException(msg); } else { sepPos = line.mLine.Length - 1; } } res = new ExtractedInfo(line, sepPos); } return(res); }
/// <summary> /// Create field object after extracting the string from the underlying /// input data /// </summary> /// <param name="fieldString">Information extracted?</param> /// <param name="line">Underlying input data</param> /// <returns>Object to assign to field</returns> private AssignResult AssignFromString(ExtractedInfo fieldString, LineInfo line) { object val; var extractedString = fieldString.ExtractedString(); try { if (IsNotEmpty && String.IsNullOrEmpty(extractedString)) { throw new InvalidOperationException("The value is empty and must be populated."); } else if (this.Converter == null) { if (IsStringField) val = TrimString(extractedString); else { extractedString = extractedString.Trim(); if (extractedString.Length == 0) { return new AssignResult { Value = GetNullValue(line), NullValueUsed = true }; } else val = Convert.ChangeType(extractedString, FieldTypeInternal, null); } } else { var trimmedString = extractedString.Trim(); if (this.Converter.CustomNullHandling == false && trimmedString.Length == 0) { return new AssignResult { Value = GetNullValue(line), NullValueUsed = true }; } else { if (TrimMode == TrimMode.Both) val = this.Converter.StringToField(trimmedString); else val = this.Converter.StringToField(TrimString(extractedString)); if (val == null) { return new AssignResult { Value = GetNullValue(line), NullValueUsed = true }; } } } return new AssignResult { Value = val }; } catch (ConvertException ex) { ex.FieldName = FieldInfo.Name; ex.LineNumber = line.mReader.LineNumber; ex.ColumnNumber = fieldString.ExtractedFrom + 1; throw; } catch (BadUsageException) { throw; } catch (Exception ex) { if (this.Converter == null || this.Converter.GetType().Assembly == typeof (FieldBase).Assembly) { throw new ConvertException(extractedString, FieldTypeInternal, FieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1, ex.Message, ex); } else { throw new ConvertException(extractedString, FieldTypeInternal, FieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1, "Your custom converter: " + this.Converter.GetType().Name + " throws an " + ex.GetType().Name + " with the message: " + ex.Message, ex); } } }
/// <summary> /// Get the data out of the records /// </summary> /// <param name="line">Line handler containing text</param> /// <returns></returns> internal object ExtractFieldValue(LineInfo line) { //-> extract only what I need if (InNewLine) { // Any trailing characters, terminate if (line.EmptyFromPos() == false) { throw new BadUsageException(line, "Text '" + line.CurrentString + "' found before the new line of the field: " + FieldInfo.Name + " (this is not allowed when you use [FieldInNewLine])"); } line.ReLoad(line.mReader.ReadNextLine()); if (line.mLineStr == null) { throw new BadUsageException(line, "End of stream found parsing the field " + FieldInfo.Name + ". Please check the class record."); } } if (IsArray == false) { ExtractedInfo info = ExtractFieldString(line); if (info.mCustomExtractedString == null) { line.mCurrentPos = info.ExtractedTo + 1; } line.mCurrentPos += CharsToDiscard; //total; if (Discarded) { return(GetDiscardedNullValue()); } else { return(AssignFromString(info, line).Value); } } else { if (ArrayMinLength <= 0) { ArrayMinLength = 0; } int i = 0; var res = new ArrayList(Math.Max(ArrayMinLength, 10)); while (line.mCurrentPos - CharsToDiscard < line.mLineStr.Length && i < ArrayMaxLength) { ExtractedInfo info = ExtractFieldString(line); if (info.mCustomExtractedString == null) { line.mCurrentPos = info.ExtractedTo + 1; } line.mCurrentPos += CharsToDiscard; try { var value = AssignFromString(info, line); if (value.NullValueUsed && i == 0 && line.IsEOL()) { break; } res.Add(value.Value); } catch (NullValueNotFoundException) { if (i == 0) { break; } else { throw; } } i++; } if (res.Count < ArrayMinLength) { throw new InvalidOperationException(string.Format("Line: {0} Column: {1} Field: {2}. The array has only {3} values, less than the minimum length of {4}", line.mReader.LineNumber.ToString(), line.mCurrentPos.ToString(), FieldInfo.Name, res.Count, ArrayMinLength)); } else if (IsLast && line.IsEOL() == false) { throw new InvalidOperationException(string.Format("Line: {0} Column: {1} Field: {2}. The array has more values than the maximum length of {3}", line.mReader.LineNumber, line.mCurrentPos, FieldInfo.Name, ArrayMaxLength)); } // TODO: is there a reason we go through all the array processing then discard it if (Discarded) { return(null); } else { return(res.ToArray(ArrayType)); } } }
/// <summary> /// Create field object after extracting the string from the underlying /// input data /// </summary> /// <param name="fieldString">Information extracted?</param> /// <param name="line">Underlying input data</param> /// <returns>Object to assign to field</returns> private AssignResult AssignFromString(ExtractedInfo fieldString, LineInfo line) { object val; var extractedString = fieldString.ExtractedString(); try { if (this.Converter == null) { if (IsStringField) { val = TrimString(extractedString); } else { extractedString = extractedString.Trim(); if (extractedString.Length == 0) { return(new AssignResult { Value = GetNullValue(line), NullValueUsed = true }); } else { val = Convert.ChangeType(extractedString, FieldTypeInternal, null); } } } else { var trimmedString = extractedString.Trim(); if (this.Converter.CustomNullHandling == false && trimmedString.Length == 0) { return(new AssignResult { Value = GetNullValue(line), NullValueUsed = true }); } else { if (TrimMode == TrimMode.Both) { val = this.Converter.StringToField(trimmedString); } else { val = this.Converter.StringToField(TrimString(extractedString)); } if (val == null) { return new AssignResult { Value = GetNullValue(line), NullValueUsed = true } } ; } } return(new AssignResult { Value = val }); } catch (ConvertException ex) { if (this.NullFieldOnError) { return(new AssignResult { Value = GetNullValue(line), NullValueUsed = true }); } else { ex.FieldName = FieldInfo.Name; ex.LineNumber = line.mReader.LineNumber; ex.ColumnNumber = fieldString.ExtractedFrom + 1; throw; } } catch (BadUsageException) { throw; } catch (Exception ex) { if (this.Converter == null || this.Converter.GetType().Assembly == typeof(FieldBase).Assembly) { throw new ConvertException(extractedString, FieldTypeInternal, FieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1, ex.Message, ex); } else { throw new ConvertException(extractedString, FieldTypeInternal, FieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1, "Your custom converter: " + this.Converter.GetType().Name + " throws an " + ex.GetType().Name + " with the message: " + ex.Message, ex); } } }
internal object AssignFromString(ExtractedInfo fieldString, LineInfo line) { object val; switch (mTrimMode) { case TrimMode.None: break; case TrimMode.Both: fieldString.TrimBoth(mTrimChars); break; case TrimMode.Left: fieldString.TrimStart(mTrimChars); break; case TrimMode.Right: fieldString.TrimEnd(mTrimChars); break; } try { if (mConvertProvider == null) { if (mIsStringField) { val = fieldString.ExtractedString(); } else { // Trim it to use Convert.ChangeType fieldString.TrimBoth(WhitespaceChars); if (fieldString.Length == 0) { // Empty stand for null val = GetNullValue(line); } else { val = Convert.ChangeType(fieldString.ExtractedString(), mFieldTypeInternal, null); } } } else { if (mConvertProvider.CustomNullHandling == false && fieldString.HasOnlyThisChars(WhitespaceChars)) { val = GetNullValue(line); } else { string from = fieldString.ExtractedString(); val = mConvertProvider.StringToField(from); if (val == null) { val = GetNullValue(line); } } } return(val); } catch (ConvertException ex) { throw ConvertException.ReThrowException(ex, mFieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1); } catch (BadUsageException) { throw; } catch (Exception ex) { if (mConvertProvider == null || mConvertProvider.GetType().Assembly == typeof(FieldBase).Assembly) { throw new ConvertException(fieldString.ExtractedString(), mFieldTypeInternal, mFieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1, ex.Message, ex); } else { throw new ConvertException(fieldString.ExtractedString(), mFieldTypeInternal, mFieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1, "Your custom converter: " + mConvertProvider.GetType().Name + " throws an " + ex.GetType().Name + " with the message: " + ex.Message, ex); } } }
internal object ExtractFieldValue(LineInfo line) { //-> extract only what I need if (mInNewLine) { if (line.EmptyFromPos() == false) { throw new BadUsageException(line, "Text '" + line.CurrentString + "' found before the new line of the field: " + mFieldInfo.Name + " (this is not allowed when you use [FieldInNewLine])"); } line.ReLoad(line.mReader.ReadNextLine()); if (line.mLineStr == null) { throw new BadUsageException(line, "End of stream found parsing the field " + mFieldInfo.Name + ". Please check the class record."); } } if (mIsArray == false) { ExtractedInfo info = ExtractFieldString(line); if (info.mCustomExtractedString == null) { line.mCurrentPos = info.ExtractedTo + 1; } line.mCurrentPos += mCharsToDiscard; //total; return(AssignFromString(info, line)); } else { if (mArrayMinLength <= 0) { mArrayMinLength = 0; } int i = 0; ArrayList res = new ArrayList(Math.Max(mArrayMinLength, 10)); while (line.mCurrentPos - mCharsToDiscard < line.mLine.Length && i < mArrayMaxLength) { ExtractedInfo info = ExtractFieldString(line); if (info.mCustomExtractedString == null) { line.mCurrentPos = info.ExtractedTo + 1; } line.mCurrentPos += mCharsToDiscard; res.Add(AssignFromString(info, line)); i++; } if (res.Count < mArrayMinLength) { throw new InvalidOperationException(string.Format("Line: {0} Column: {1} Field: {2}. The array has only {3} values, less than the minimum length of {4}", line.mReader.LineNumber.ToString(), line.mCurrentPos.ToString(), mFieldInfo.Name, res.Count, mArrayMinLength)); } else if (mIsLast && line.IsEOL() == false) { throw new InvalidOperationException(string.Format("Line: {0} Column: {1} Field: {2}. The array has more values than the maximum length of {3}", line.mReader.LineNumber, line.mCurrentPos, mFieldInfo.Name, mArrayMaxLength)); } return(res.ToArray(mArrayType)); } }
protected override ExtractedInfo ExtractFieldString(string from, ForwardReader reader) { if (mIsOptional && from.Length == 0) { return(ExtractedInfo.Empty); } ExtractedInfo res; if (mQuoteChar == '\0') { if (mIsLast) { res = new ExtractedInfo(from); } else { int sepPos = from.IndexOf(this.mSeparator); if (sepPos == -1) { if (this.mNextIsOptional == false) { throw new FileHelperException("The separator '" + this.mSeparator + "' can´t be found after the field '" + this.mFieldInfo.Name + "' (the record has less fields, the separator is wrong or the next field must be marked as optional)."); } else { sepPos = from.Length; } } res = new ExtractedInfo(from.Substring(0, sepPos)); } } else { string quotedStr = mQuoteChar.ToString(); res = new ExtractedInfo(); res.CharsRemoved = 0; string from2 = from; if (mTrimMode == TrimMode.Both || mTrimMode == TrimMode.Left) { from2 = from.TrimStart(mTrimChars); res.CharsRemoved = from2.Length - from.Length; } if (from2.StartsWith(quotedStr)) { if (mQuoteMultiline == MultilineMode.AllowForBoth || mQuoteMultiline == MultilineMode.AllowForRead) { ExtractedInfo ei = StringHelper.ExtractQuotedString(from2, reader, mQuoteChar); res.ExtractedString = ei.ExtractedString; res.CharsRemoved += ei.CharsRemoved; res.ExtraLines = ei.ExtraLines; res.NewRestOfLine = ei.NewRestOfLine; } else { int index = 0; res.ExtractedString = StringHelper.ExtractQuotedString(from2, mQuoteChar, out index); res.CharsRemoved += index; } } else { if (mQuoteMode == QuoteMode.OptionalForBoth || mQuoteMode == QuoteMode.OptionalForRead) { if (mIsLast) { res = new ExtractedInfo(from); } else { int sepPos = from.IndexOf(this.mSeparator); if (sepPos == -1) { if (this.mNextIsOptional == false) { throw new FileHelperException("The separator '" + this.mSeparator + "' can´t be found after the field '" + this.mFieldInfo.Name + "' (the record has less fields, the separator is wrong or the next field must be marked as optional)."); } else { sepPos = from.Length; } } res = new ExtractedInfo(from.Substring(0, sepPos)); } } else if (from.Trim().StartsWith(quotedStr)) { throw new BadUsageException("The field '" + this.mFieldInfo.Name + "' has spaces before the QuotedChar in the data use the TrimAttribute to by pass this error. Field String: " + from); } else { throw new BadUsageException("The field '" + this.mFieldInfo.Name + "' not begin with the QuotedChar in the data. You can use FieldQuoted(QuoteMode.OptionalForRead) to allow optional quoted field.. Field String: " + from); } } } return(res); }
internal static ExtractedInfo ExtractQuotedString(string source, ForwardReader reader, char quoteChar) { StringBuilder res = new StringBuilder(32); int lines = 0; bool beginEscape = false; if (reader == null) { throw new BadUsageException("The reader can´t be null"); } if (source == null || source.Length == 0) { throw new BadUsageException("An empty String found and can be parsed like a QuotedString try to use SafeExtractQuotedString"); } if (source[0] != quoteChar) { throw new BadUsageException("The source string not begins with the quote char: " + quoteChar); } int i = 1; bool mustContinue = true; while (mustContinue && source != null) { while (i < source.Length) { if (source[i] == quoteChar) { if (beginEscape == true) { beginEscape = false; res.Append(quoteChar); } else { beginEscape = true; } } else { if (beginEscape) { // End of the String ExtractedInfo ei = new ExtractedInfo(res.ToString(), i, lines); if (lines != 0) { ei.NewRestOfLine = source.Substring(i); } return(ei); } else { res.Append(source[i]); } } i++; } if (beginEscape) { return(new ExtractedInfo(res.ToString(), i + 1, lines)); } else { source = reader.ReadNextLine(); res.Append(StringHelper.NewLine); lines++; i = 0; } } throw new BadUsageException("The current field has an UnClosed quoted string. Complete Filed String: " + res.ToString()); }
internal object AssignFromString(ExtractedInfo fieldString, LineInfo line) { object val; switch (mTrimMode) { case TrimMode.None: break; case TrimMode.Both: fieldString.TrimBoth(mTrimChars); break; case TrimMode.Left: fieldString.TrimStart(mTrimChars); break; case TrimMode.Right: fieldString.TrimEnd(mTrimChars); break; } try { if (mConvertProvider == null) { if (mIsStringField) { val = fieldString.ExtractedString(); } else { // Trim it to use Convert.ChangeType fieldString.TrimBoth(WhitespaceChars); if (fieldString.Length == 0) { // Empty stand for null val = GetNullValue(); } else { val = Convert.ChangeType(fieldString.ExtractedString(), mFieldType, null); } } } else { if (mConvertProvider.CustomNullHandling == false && fieldString.HasOnlyThisChars(WhitespaceChars)) { val = GetNullValue(); } else { string from = fieldString.ExtractedString(); val = mConvertProvider.StringToField(from); if (val == null) { val = GetNullValue(); } } } return(val); } catch (ConvertException ex) { throw ConvertException.ReThrowException(ex, mFieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1); } }
internal object AssignFromString(ExtractedInfo fieldString, LineInfo line) { object val; switch (mTrimMode) { case TrimMode.None: break; case TrimMode.Both: fieldString.TrimBoth(mTrimChars); break; case TrimMode.Left: fieldString.TrimStart(mTrimChars); break; case TrimMode.Right: fieldString.TrimEnd(mTrimChars); break; } try { if (mConvertProvider == null) { if (mIsStringField) val = fieldString.ExtractedString(); else { // Trim it to use Convert.ChangeType fieldString.TrimBoth(WhitespaceChars); if (fieldString.Length == 0) { // Empty stand for null val = GetNullValue(line); } else { val = Convert.ChangeType(fieldString.ExtractedString(), mFieldTypeInternal, null); } } } else { if (mConvertProvider.CustomNullHandling == false && fieldString.HasOnlyThisChars(WhitespaceChars)) { val = GetNullValue(line); } else { string from = fieldString.ExtractedString(); val = mConvertProvider.StringToField(from); if (val == null) val = GetNullValue(line); } } return val; } catch (ConvertException ex) { throw ConvertException.ReThrowException(ex, mFieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1); } catch (BadUsageException) { throw; } catch (Exception ex) { if (mConvertProvider == null || mConvertProvider.GetType().Assembly == typeof(FieldBase).Assembly) throw new ConvertException(fieldString.ExtractedString(), mFieldTypeInternal, mFieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1, ex.Message, ex); else throw new ConvertException(fieldString.ExtractedString(), mFieldTypeInternal, mFieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1, "Your custom converter: " + mConvertProvider.GetType().Name + " throws an " + ex.GetType().Name + " with the message: " + ex.Message, ex); } }
internal object AssignFromString(ExtractedInfo fieldString, LineInfo line) { object val; var extractedString = fieldString.ExtractedString(); var trimmedBoth = false; switch (TrimMode) { case TrimMode.None: break; case TrimMode.Both: extractedString = extractedString.Trim(); trimmedBoth = true; //fieldString.TrimBoth(TrimChars); break; case TrimMode.Left: extractedString = extractedString.TrimStart(); //fieldString.TrimStart(TrimChars); break; case TrimMode.Right: extractedString = extractedString.TrimEnd(); //fieldString.TrimEnd(TrimChars); break; } try { if (ConvertProvider == null) { if (IsStringField) val = extractedString; else { // Trim it to use Convert.ChangeType if (trimmedBoth == false) extractedString = extractedString.Trim(); if (extractedString.Length == 0) { // Empty stand for null val = GetNullValue(line); } else { val = Convert.ChangeType(extractedString, FieldTypeInternal, null); } } } else { var trimmedString = extractedString; if (trimmedBoth == false) { trimmedString = extractedString.Trim(); } if (ConvertProvider.CustomNullHandling == false && trimmedString.Length == 0) { val = GetNullValue(line); } else { string from = extractedString; val = ConvertProvider.StringToField(from); if (val == null) val = GetNullValue(line); } } return val; } catch (ConvertException ex) { ex.FieldName = FieldInfo.Name; ex.LineNumber = line.mReader.LineNumber; ex.ColumnNumber = fieldString.ExtractedFrom + 1; throw; } catch (BadUsageException) { throw; } catch (Exception ex) { if (ConvertProvider == null || ConvertProvider.GetType().Assembly == typeof(FieldBase).Assembly) throw new ConvertException(extractedString, FieldTypeInternal, FieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1, ex.Message, ex); else throw new ConvertException(extractedString, FieldTypeInternal, FieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1, "Your custom converter: " + ConvertProvider.GetType().Name + " throws an " + ex.GetType().Name + " with the message: " + ex.Message, ex); } }
private ExtractedInfo BasicExtractString(LineInfo line) { ExtractedInfo res; if (mIsLast) res = new ExtractedInfo(line); else { int sepPos; sepPos = line.IndexOf(mSeparator); if (sepPos == -1) { if (this.mNextIsOptional == false) { string msg = null; if (mIsFirst && line.EmptyFromPos()) msg = "The line " + line.mReader.LineNumber.ToString() + " is empty. Maybe you need to use the attribute [IgnoreEmptyLines] in your record class."; else msg = "The delimiter '" + this.mSeparator + "' can´t be found after the field '" + this.mFieldInfo.Name + "' at line " + line.mReader.LineNumber.ToString() + " (the record has less fields, the delimiter is wrong or the next field must be marked as optional)."; throw new FileHelpersException(msg); } else sepPos = line.mLine.Length - 1; } res = new ExtractedInfo(line, sepPos); } return res; }
internal object AssignFromString(ExtractedInfo fieldString, LineInfo line) { object val; switch (mTrimMode) { case TrimMode.None: break; case TrimMode.Both: fieldString.TrimBoth(mTrimChars); break; case TrimMode.Left: fieldString.TrimStart(mTrimChars); break; case TrimMode.Right: fieldString.TrimEnd(mTrimChars); break; } try { if (mConvertProvider == null) { if (mIsStringField) val = fieldString.ExtractedString(); else { // Trim it to use Convert.ChangeType fieldString.TrimBoth(WhitespaceChars); if (fieldString.Length == 0) { // Empty stand for null val = GetNullValue(); } else { val = Convert.ChangeType(fieldString.ExtractedString(), mFieldType, null); } } } else { if (mConvertProvider.CustomNullHandling == false && fieldString.HasOnlyThisChars(WhitespaceChars)) { val = GetNullValue(); } else { string from = fieldString.ExtractedString(); val = mConvertProvider.StringToField(from); if (val == null) val = GetNullValue(); } } return val; } catch (ConvertException ex) { throw ConvertException.ReThrowException(ex, mFieldInfo.Name, line.mReader.LineNumber, fieldString.ExtractedFrom + 1); } }