private void WriteData(CIFHeader header, ICIFWriterProtocol protocol)
{
Debug.Assert(_gatheredFieldNames != null && _gatheredFieldNames.Count > 0,
"Field names should have been gathered here");
// DATA
_writer.WriteLine("DATA");
var enumerator = protocol.GetCIFItemEnumerator();
foreach (var item in enumerator)
{
_writer.WriteLine(item.ToCSV(_gatheredFieldNames));
}
// ENDOFDATA
_writer.WriteLine("ENDOFDATA");
}
// TODO IsCollection
internal static CIFItem Parse(CIFHeader header, string itemData)
{
var item = new CIFItem();
if (string.IsNullOrEmpty(itemData))
return item;
var values = ParseCSV(itemData, false);
// TODO use header encoding for item data here
var names = header.FieldNamesList;
if (names != null && names.Any())
{
var namesArray = names.ToArray();
var valuesArray = values.ToArray();
// Field names are specified in header
Debug.Assert(valuesArray.Length == namesArray.Length, "Field names count != field values count");
for (int i = 0; i < namesArray.Length; ++i)
{
var name = namesArray[i];
var value = valuesArray[i];
// Handle special cases like CIF Hashes in CIFItem instance
item[name] = !string.IsNullOrEmpty(value) ? value : null;
}
}
else
{
// Field names are not specified, so use the (12) default fields from CIF 2.1
var namesArray = Constants.RequiredFields;
var valuesArray = values.ToArray();
for (int i = 0; i < namesArray.Length; ++i)
{
var name = namesArray[i];
var value = valuesArray[i];
// Handle special cases like CIF Hashes in CIFItem instance
item[name] = !string.IsNullOrEmpty(value) ? value : null;
}
}
return item;
}
/// <summary>
/// Tries to parse <paramref name="headerData"/> as a
/// <see cref="CIFHeader"/>.
/// </summary>
/// <param name="headerData">Header data as string</param>
/// <returns>An instance of <see cref="CIF"/>.</returns>
internal static CIFHeader Parse(string headerData)
{
var header = new CIFHeader();
var lines = headerData.Split(new[] {'\r', '\n'}, StringSplitOptions.RemoveEmptyEntries);
for(int i=0; i<lines.Length; ++i)
{
var line = lines[i];
if (i == 0)
{
// First line is version
header.Version = line;
continue;
}
var kvp = line.Split(new[] {':'}, 2, StringSplitOptions.RemoveEmptyEntries);
var key = kvp[0];
var value = kvp[1];
if (0 == string.Compare(key, "CURRENCY", StringComparison.InvariantCultureIgnoreCase))
{
header.Currency = value.Trim();
continue;
}
if (0 == string.Compare(key, "CHARSET", StringComparison.InvariantCultureIgnoreCase))
{
header.Charset = value.Trim();
continue;
}
if (0 == string.Compare(key, "CODEFORMAT", StringComparison.InvariantCultureIgnoreCase))
{
header.CodeFormat = value.Trim();
continue;
}
if (0 == string.Compare(key, "COMMENTS", StringComparison.InvariantCultureIgnoreCase))
{
header.Comments = value.Trim();
continue;
}
if (0 == string.Compare(key, "DUNS", StringComparison.InvariantCultureIgnoreCase))
{
header.DUNS = bool.Parse(value.Trim());
continue;
}
if (0 == string.Compare(key, "FIELDNAMES", StringComparison.InvariantCultureIgnoreCase))
{
header.FieldNames = value.Trim();
continue;
}
if (0 == string.Compare(key, "ITEMCOUNT", StringComparison.InvariantCultureIgnoreCase))
{
header.ItemCount = int.Parse(value.Trim(), NumberStyles.Integer, CultureInfo.InvariantCulture);
continue;
}
if (0 == string.Compare(key, "LOADMODE", StringComparison.InvariantCultureIgnoreCase))
{
header.LoadMode = value.Trim().FirstOrDefault();
continue;
}
if (0 == string.Compare(key, "SUPPLIERID_DOMAIN", StringComparison.InvariantCultureIgnoreCase))
{
header.SupplierIDDomain = value.Trim();
continue;
}
if (0 == string.Compare(key, "TIMESTAMP", StringComparison.InvariantCultureIgnoreCase))
{
header.Timestamp = value.Trim();
continue;
}
if (0 == string.Compare(key, "UNUOM", StringComparison.InvariantCultureIgnoreCase))
{
header.UNUoM = bool.Parse(value.Trim());
continue;
}
}
return header;
}
public abstract void HandleHeader(CIFHeader header);
private void WriteHeader(CIFHeader header, ICIFWriterProtocol protocol)
{
_writer.WriteLine(header.Version);
if (header.Currency != null)
_writer.WriteLine("CURRENCY:" + header.Currency);
if (header.Charset != null)
_writer.WriteLine("CHARSET:" + header.Charset);
if (header.CodeFormat != null)
_writer.WriteLine("CODEFORMAT:" + header.CodeFormat);
if (header.Comments != null)
_writer.WriteLine("COMMENTS:" + header.Comments.Replace("\r\n", " "));
if (header.DUNS.HasValue)
_writer.WriteLine("DUNS:" + (header.DUNS.Value ? "True" : "False"));
_writer.WriteLine("ITEMCOUNT:" + header.ItemCount);
_writer.WriteLine("LOADMODE:" + header.LoadMode);
if (header.SupplierIDDomain != null)
_writer.WriteLine("SUPPLIERID_DOMAIN:" + header.SupplierIDDomain);
if (header.Timestamp != null)
_writer.WriteLine("TIMESTAMP:" + header.Timestamp);
if (!header.UNUoM.HasValue)
_writer.WriteLine("UNUOM:" + (header.UNUoM.Value ? "True" : "False"));
// Always writes all fields here, regardless of whether they're set
// There's room for optimization here
_gatheredFieldNames = GatherFieldNamesInOrder(protocol);
_writer.WriteLine("FIELDNAMES:" + string.Join(",", _gatheredFieldNames));
}
private void WriteTrailer(CIFHeader header, ICIFWriterProtocol protocol)
{
var trailer = protocol.GetCIFTrailer();
if (trailer != null)
{
// TODO write TRAILER
}
}