internal void LoadLayout(RowLayout layout)
{
if (Mode == SearchMode.And || Mode == SearchMode.Or || Mode == SearchMode.None)
{
return;
}
if (Layout != null)
{
if (ReferenceEquals(layout, Layout))
{
return;
}
}
Layout = layout ?? throw new ArgumentNullException(nameof(layout));
if (FieldName == null)
{
throw new InvalidOperationException($"Property {nameof(FieldName)} has to be set!");
}
FieldNumber = layout.GetFieldIndex(FieldName, true);
FieldProperties = layout[FieldNumber];
if (Mode == SearchMode.In)
{
var result = new Set <object>();
foreach (var value in (Set <object>)FieldValue)
{
result.Add(ConvertValue(value));
}
FieldValue = result;
}
else if (Mode == SearchMode.Like)
{
// Do nothing
}
else
{
if ((FieldValue != null) && (FieldProperties.ValueType != FieldValue.GetType()))
{
FieldValue = ConvertValue(FieldValue);
}
}
}
/// <summary>Initializes a new instance of the <see cref="CsvReader" /> class.</summary>
/// <param name="properties">Properties to apply to the reader.</param>
/// <param name="layout">Layout to use when reading the csv data.</param>
/// <param name="stream">Stream to read data from.</param>
/// <param name="closeBaseStream">if set to <c>true</c> [close base stream on close].</param>
public CsvReader(RowLayout layout, Stream stream, CsvProperties properties = default, bool closeBaseStream = false)
{
Layout = layout;
BaseStream = stream ?? throw new ArgumentNullException(nameof(stream));
Properties = properties.Valid ? properties : CsvProperties.Default;
CloseBaseStream = closeBaseStream;
reader = new DataReader(stream, Properties.Encoding, Properties.NewLineMode);
if (!Properties.NoHeader)
{
var header = reader.ReadLine();
currentRowNumber++;
var fields = header.Split(Properties.Separator);
if (!Properties.AllowFieldMatching)
{
if (fields.Length != Layout.FieldCount)
{
if ((fields.Length - 1) != Layout.FieldCount)
{
throw new InvalidDataException($"Invalid header fieldcount (expected '{Layout.FieldCount}' got '{fields.Length}')!");
}
}
}
else
{
if (fields.Length != Layout.FieldCount)
{
fieldNumberMatching = new int[Layout.FieldCount];
}
}
var count = Math.Min(Layout.FieldCount, fields.Length);
for (var i = 0; i < count; i++)
{
var fieldName = fields[i].UnboxText(false);
var fieldIndex = Layout.GetFieldIndex(fieldName, false);
if (fieldIndex < 0)
{
throw new InvalidDataException(
$"Error loading CSV Header! Got field name '{fieldName}' instead of '{Layout[i].Name}' at type '{Layout.Name}'");
}
if (!Properties.AllowFieldMatching)
{
if (fieldIndex != i)
{
throw new InvalidDataException($"Fieldposition of Field '{fieldName}' does not match!");
}
if (!string.Equals(Layout[fieldIndex].Name, fieldName))
{
throw new InvalidDataException(
$"Invalid header value at field number '{i}' name '{fieldName}' expected '{Layout[fieldIndex].Name}'!");
}
}
else
{
if ((fieldNumberMatching == null) && (fieldIndex != i))
{
fieldNumberMatching = new int[Layout.FieldCount];
}
}
}
if (fieldNumberMatching != null)
{
var i = 0;
for (; i < count; i++)
{
var fieldName = fields[i].UnboxText(false);
fieldNumberMatching[i] = Layout.GetFieldIndex(fieldName, false);
}
for (; i < Layout.FieldCount; i++)
{
fieldNumberMatching[i] = -1;
}
}
}
}
/// <summary>Gets the content of the field with the specified <paramref name="fieldName" />.</summary> /// <param name="fieldName">Name of the field.</param> /// <returns>Returns a value or null.</returns> public object this[string fieldName] => Values[Layout.GetFieldIndex(fieldName, true)];