/// <summary>
/// Map by a <see cref="ColumnAttribute"/> object.
/// </summary>
/// <param name="attribute">The <see cref="ColumnAttribute"/> object.</param>
/// <returns>The mapper object.</returns>
public Mapper Map(ColumnAttribute attribute)
{
if (attribute == null)
{
throw new ArgumentNullException(nameof(attribute));
}
if (attribute.Property != null)
{
attribute.MergeTo(Attributes);
}
else if (attribute.PropertyName != null)
{
if (DynamicAttributes.ContainsKey(attribute.PropertyName))
{
DynamicAttributes[attribute.PropertyName].MergeFrom(attribute);
}
else
{
// Ensures column name for the first time mapping.
if (attribute.Name == null)
{
attribute.Name = attribute.PropertyName;
}
DynamicAttributes[attribute.PropertyName] = attribute;
}
}
else
{
throw new InvalidOperationException("Either PropertyName or Property should be specified for a valid mapping!");
}
return(this);
}
/// <summary>
/// Loads attributes to a dictionary.
/// </summary>
/// <param name="attributes">Container to hold loaded attributes.</param>
/// <param name="type">The type object.</param>
public static void LoadAttributes(Dictionary <PropertyInfo, ColumnAttribute> attributes, Type type)
{
if (type == null)
{
return;
}
foreach (var pi in type.GetProperties(BindingFlag))
{
var columnMeta = pi.GetCustomAttributes(typeof(ColumnAttribute), false).FirstOrDefault() as ColumnAttribute;
var ignore = Attribute.IsDefined(pi, typeof(IgnoreAttribute));
var useLastNonBlank = Attribute.IsDefined(pi, typeof(UseLastNonBlankValueAttribute));
if (columnMeta == null && !ignore && !useLastNonBlank)
{
continue;
}
if (columnMeta == null)
{
columnMeta = new ColumnAttribute
{
Ignored = ignore ? new bool?(true) : null,
UseLastNonBlankValue = useLastNonBlank ? new bool?(true) : null
}
}
;
columnMeta.Property = pi;
// Note that attribute from Map method takes precedence over Attribute meta data.
columnMeta.MergeTo(attributes, false);
}
}
/// <summary>
/// Map by a <see cref="ColumnAttribute"/> object.
/// </summary>
/// <param name="attribute">The <see cref="ColumnAttribute"/> object.</param>
/// <returns>The mapper object.</returns>
public Mapper Map(ColumnAttribute attribute)
{
if (attribute == null)
{
throw new ArgumentNullException(nameof(attribute));
}
if (attribute.Property != null)
{
attribute.MergeTo(Attributes);
}
else if (attribute.PropertyName != null)
{
DynamicAttributes[attribute.PropertyName] = attribute;
}
else
{
throw new InvalidOperationException("Either PropertyName or Property should be specified for a valid mapping!");
}
return(this);
}
