public void AddFieldTemplate(FieldTemplate fieldTemplate)
{
if ((fieldTemplate.StartPosition + fieldTemplate.FieldSize) > this.LineSize)
{
throw new Exception(String.Format(Messages.FieldExceedsLineBoundary, fieldTemplate.FieldName));
}
this.FieldTemplates.Add(fieldTemplate.FieldName, fieldTemplate);
}
public void AddFieldTemplate(FieldTemplate fieldTemplate)
{
if ((fieldTemplate.StartPosition + fieldTemplate.FieldSize) > this.LineSize)
{
throw new Exception(String.Format("Field \"{0}\" exceeds line boundary", fieldTemplate.FieldName));
}
this.FieldTemplates.Add(fieldTemplate.FieldName, fieldTemplate);
}
//Constructor
public ParsedField(byte[] lineBytes, FieldTemplate fieldTemplate)
{
try
{
this.Template = fieldTemplate;
bool isParsedSuccessfully;
this.Text = this.ParseField(lineBytes, fieldTemplate, out isParsedSuccessfully);
this.ParsedSuccessfully = isParsedSuccessfully;
}
catch (Exception ex)
{
//Used for debugging
Console.WriteLine("Exception parsing field {0} ({1})", fieldTemplate.FieldName, fieldTemplate.Type.ToString());
throw ex;
}
}
//Constructor
public ParsedField(byte[] lineBytes, FieldTemplate fieldTemplate)
{
try
{
this.Template = fieldTemplate;
bool isParsedSuccessfully;
this.Text = this.ParseField(lineBytes, fieldTemplate, out isParsedSuccessfully);
this.ParsedSuccessfully = isParsedSuccessfully;
}
catch (Exception ex)
{
//Used for debugging
Console.WriteLine("Exception parsing field {0} ({1})", fieldTemplate.FieldName, fieldTemplate.Type.ToString());
throw ex;
}
}
private void InitializeLineTemplateFromXml(XElement lineTemplaeXml)
{
//Input XML:
//<lineTemplate Name="RNA_RecType01" Length="1190">
// <fields>
// <fieldTemplate Name="RecordType" Type="AlphaNum" StartPosition="13" Size="2" DecimalPlaces="0" />
// <fieldTemplate Name="SourceInd" Type="AlphaNum" StartPosition="15" Size="1" DecimalPlaces="0" />
// </fields>
//</lineTemplate>
int lineSize = ParserUtilities.GetAttributeNumericValue(lineTemplaeXml, Fields.Length);
string templateName = ParserUtilities.GetCompulsoryAttributeValue(lineTemplaeXml, Fields.Name);
this.PopulateInitialObjectProperties(lineSize, templateName);
foreach (XElement fieldXml in lineTemplaeXml.Element(Fields.XmlFields).Elements(Fields.XmlFieldTemplate))
{
FieldTemplate fieldTemplate = new FieldTemplate(fieldXml);
this.AddFieldTemplate(fieldTemplate);
}
}
// TODO: PasedField should be like a data transfer object. Move parsing logic into dedicated class.
private string ParseField(byte[] lineBytes, FieldTemplate fieldTemplate, out bool isParsedSuccessfully)
{
if (lineBytes == null || lineBytes.Length == 0)
{
ParserUtilities.PrintError("lineBytes array is null or empty");
isParsedSuccessfully = false;
return(string.Empty);
}
if (lineBytes.Length < (fieldTemplate.StartPosition + fieldTemplate.FieldSize))
{
Array.Resize <byte>(ref lineBytes, fieldTemplate.StartPosition + fieldTemplate.FieldSize);
//throw new Exception(String.Format(Messages.FieldOutsideLineBoundary, fieldTemplate.FieldName));
}
byte[] fieldBytes = new byte[fieldTemplate.FieldSize];
Array.Copy(lineBytes, fieldTemplate.StartPosition, fieldBytes, 0, fieldTemplate.FieldSize);
this.OriginalBytes = fieldBytes;
string result = string.Empty;
isParsedSuccessfully = true;
switch (fieldTemplate.Type)
{
case FieldType.String:
result = this.ConvertEbcdicString(fieldBytes);
break;
case FieldType.NumericString:
result = this.ConvertEbcdicNumericString(fieldBytes, fieldTemplate.DecimalPlaces, out isParsedSuccessfully);
break;
case FieldType.Packed:
result = this.Unpack(fieldBytes, fieldTemplate.DecimalPlaces, out isParsedSuccessfully);
break;
case FieldType.BinaryNum:
result = this.ConvertBinaryNumber(fieldBytes, fieldTemplate.DecimalPlaces, out isParsedSuccessfully);
break;
case FieldType.PackedDate:
result = this.ConvertMainframePackedDate(fieldBytes, out isParsedSuccessfully);
break;
case FieldType.DateString:
result = ConvertEbcdicDateString(fieldBytes, out isParsedSuccessfully);
break;
case FieldType.DateStringMMDDYY:
result = this.ConvertEbcdicCustomDateStr(fieldBytes, Formats.MMDDYY, Formats.YYYY_MM_DD, out isParsedSuccessfully);
break;
case FieldType.SourceBytesBase16:
result = ParserUtilities.ConvertBytesToStringBase16(fieldBytes);
break;
case FieldType.SourceBytesBase10:
result = ParserUtilities.ConvertBytesToStringBase10(fieldBytes);
break;
case FieldType.SourceBytesBase2:
result = ParserUtilities.ConvertBytesToStringBase2(fieldBytes);
break;
case FieldType.StringEncIbm935:
result = CustomIbm935Mapper.GetUnicodeString(fieldBytes).Trim();
break;
case FieldType.StringUnicode:
result = System.Text.Encoding.Default.GetString(fieldBytes);
break;
default:
isParsedSuccessfully = false;
new Exception(String.Format(Messages.ParserNotImplemented, fieldTemplate.FieldName, fieldTemplate.Type.ToString()));
break;
}
return(result);
}
private void InitializeLineTemplateFromXml(XElement lineTemplaeXml)
{
//Input XML:
//<lineTemplate Name="RNA_RecType01" Length="1190">
// <fields>
// <fieldTemplate Name="RecordType" Type="AlphaNum" StartPosition="13" Size="2" DecimalPlaces="0" />
// <fieldTemplate Name="SourceInd" Type="AlphaNum" StartPosition="15" Size="1" DecimalPlaces="0" />
// </fields>
//</lineTemplate>
int lineSize = ParserUtilities.GetAttributeNumericValue(lineTemplaeXml, "Length");
string templateName = ParserUtilities.GetCompulsoryAttributeValue(lineTemplaeXml, "Name");
this.PopulateInitialObjectProperties(lineSize, templateName);
foreach (XElement fieldXml in lineTemplaeXml.Element("fields").Elements("fieldTemplate"))
{
FieldTemplate fieldTemplate = new FieldTemplate(fieldXml);
this.AddFieldTemplate(fieldTemplate);
}
}
private string ParseField(byte[] lineBytes, FieldTemplate fieldTemplate, out bool isParsedSuccessfully)
{
if (lineBytes == null || lineBytes.Length == 0)
{
ParserUtilities.PrintError("lineBytes array is null or empty");
isParsedSuccessfully = false;
return "";
}
if (lineBytes.Length < (fieldTemplate.StartPosition + fieldTemplate.FieldSize))
{
throw new Exception(String.Format("Field \"{0}\" length falls outside the line length", fieldTemplate.FieldName));
}
byte[] fieldBytes = new byte[fieldTemplate.FieldSize];
Array.Copy(lineBytes, fieldTemplate.StartPosition, fieldBytes, 0, fieldTemplate.FieldSize);
this.OriginalBytes = fieldBytes;
if (fieldTemplate.Type == FieldType.String)
{
isParsedSuccessfully = true;
return this.ConvertEbcdicString(fieldBytes);
}
else if (fieldTemplate.Type == FieldType.NumericString)
{
return this.ConvertEbcdicNumericString(fieldBytes, fieldTemplate.DecimalPlaces, out isParsedSuccessfully);
}
else if (fieldTemplate.Type == FieldType.Packed)
{
return this.Unpack(fieldBytes, fieldTemplate.DecimalPlaces, out isParsedSuccessfully);
}
else if (fieldTemplate.Type == FieldType.BinaryNum)
{
return this.ConvertBinaryNumber(fieldBytes, fieldTemplate.DecimalPlaces, out isParsedSuccessfully);
}
else if (fieldTemplate.Type == FieldType.PackedDate)
{
return this.ConvertMainframePackedDate(fieldBytes, out isParsedSuccessfully);
}
else if (fieldTemplate.Type == FieldType.DateString)
{
return ConvertEbcdicDateString(fieldBytes, out isParsedSuccessfully);
}
else if (fieldTemplate.Type == FieldType.DateStringMMDDYY)
{
return this.ConvertEbcdicCustomDateStr(fieldBytes, "MMddyy", yyyy_MM_dd, out isParsedSuccessfully);
}
else if (fieldTemplate.Type == FieldType.SourceBytesBase16)
{
isParsedSuccessfully = true;
return ParserUtilities.ConvertBytesToStringBase16(fieldBytes);
}
else if (fieldTemplate.Type == FieldType.SourceBytesBase10)
{
isParsedSuccessfully = true;
return ParserUtilities.ConvertBytesToStringBase10(fieldBytes);
}
else if (fieldTemplate.Type == FieldType.SourceBytesBase2)
{
isParsedSuccessfully = true;
return ParserUtilities.ConvertBytesToStringBase2(fieldBytes);
}
else if (fieldTemplate.Type == FieldType.StringEncIbm935)
{
isParsedSuccessfully = true;
return CustomIbm935Mapper.GetUnicodeString(fieldBytes).Trim();
}
else
{
throw new Exception(String.Format("Unable to parse field \"{0}\". Parser not implemented for field type \"{1}\"", fieldTemplate.FieldName, fieldTemplate.Type.ToString()));
}
}