/// <summary>
/// Initializes a new instance of the <see cref="FileColumnReflector"/> class.
/// </summary>
internal FileRecordReflector(Type type, FileFormatBase ff)
{
Type = type;
TypeInfo = type.GetTypeInfo();
if (!TypeInfo.IsClass)
{
throw new ArgumentException($"Type '{type.Name}' must be a class.", nameof(type));
}
// Get all the property/column metadata.
FileFormat = ff;
int i = 0;
var columns = new List <FileColumnReflector>();
var children = new List <FileHierarchyReflector>();
foreach (var pi in TypeReflector.GetProperties(Type))
{
i++;
var fca = pi.GetCustomAttribute <FileColumnAttribute>();
var fha = pi.GetCustomAttribute <FileHierarchyAttribute>();
if (fca != null && fha != null)
{
throw new InvalidOperationException($"Type '{type.Name}' property '{pi.Name}' cannot specify both a FileColumnAttribute and FileHierarchyAttribute.");
}
if (fca != null)
{
columns.Add(new FileColumnReflector(i, fca, pi, FileFormat));
}
if (fha != null)
{
var fhr = new FileHierarchyReflector(i, fha, pi, ff);
if (children.SingleOrDefault(x => x.RecordIdentifier == fhr.RecordIdentifier) != null)
{
throw new InvalidOperationException($"Type '{type.Name}' property '{pi.Name}' FileHierarchyAttribute has a duplicate Record Identifier '{fhr.RecordIdentifier}' (must be unique within Type).");
}
children.Add(new FileHierarchyReflector(i, fha, pi, ff));
}
}
// Order the Columns and Children by Order and Index for usage.
Columns = columns.OrderBy(x => x.Order).ThenBy(x => x.Index).ToList();
Children = children.OrderBy(x => x.Order).ThenBy(x => x.Index).ToList();
for (int j = 0; j < Children.Count; j++)
{
_childrenIndexes.Add(Children[j].RecordIdentifier, j);
}
}
/// <summary>
/// Gets from cache (or creates and adds to cache) the <see cref="IODataMapper"/> (with option to merge alternate property configuration).
/// </summary>
private static IODataMapper GetOrCreateMapper(Type type, Dictionary <string, MemberInfo> altProps, string overrideEntityName)
{
if (_cache.TryGetValue(type, out IODataMapper map))
{
return(map);
}
lock (_lock)
{
if (_cache.TryGetValue(type, out map))
{
return(map);
}
if (!type.IsClass)
{
throw new MapperException($"Type '{type.Name}' must be a class for auto-mapping.");
}
var mea = type.GetCustomAttributes(typeof(MapperEntityAttribute), true).OfType <MapperEntityAttribute>().FirstOrDefault();
map = (IODataMapper)Activator.CreateInstance(typeof(ODataMapper <>).MakeGenericType(type), (overrideEntityName ?? mea?.Name) ?? type.Name);
var pe = Expression.Parameter(type, "x");
string dname = null;
var hasProperties = false;
MapperPropertyAttribute mpa = null;
foreach (var p in TypeReflector.GetProperties(type))
{
// Do not auto-map where the Ignore attribute has been specified.
if (p.GetCustomAttributes(typeof(MapperIgnoreAttribute), true).OfType <MapperIgnoreAttribute>().FirstOrDefault() != null)
{
continue;
}
// Get property merge config.
if (altProps == null)
{
mpa = p.GetCustomAttributes(typeof(MapperPropertyAttribute), true).OfType <MapperPropertyAttribute>().FirstOrDefault();
dname = mpa?.Name;
}
else
{
if (!altProps.TryGetValue(p.Name, out MemberInfo alt))
{
throw new InvalidOperationException($"Type '{type.Name}' Property '{p.Name}' does not have an alternative property configuration specified.");
}
// Do not auto-map where the Ignore attribute has been specified.
if (alt.GetCustomAttributes(typeof(MapperIgnoreAttribute), true).OfType <MapperIgnoreAttribute>().FirstOrDefault() != null)
{
continue;
}
mpa = alt.GetCustomAttributes(typeof(MapperPropertyAttribute), true).OfType <MapperPropertyAttribute>().FirstOrDefault();
dname = mpa?.Name ?? alt.Name;
}
// Create the lambda expression for the property and add to the mapper.
hasProperties = true;
var lex = Expression.Lambda(Expression.Property(pe, p.Name), pe);
var pmap = (IODataPropertyMapper)map.GetType()
.GetMethod("Property", BindingFlags.Instance | BindingFlags.Public | BindingFlags.DeclaredOnly)
.MakeGenericMethod(p.PropertyType)
.Invoke(map, new object[] { lex, dname, mpa == null ? OperationTypes.Any : mpa.OperationTypes });
if (mpa == null)
{
continue;
}
// Apply auto-map Property attribute IsUnique configuration.
if (mpa.IsUniqueKey)
{
pmap.SetUniqueKey(mpa.IsUniqueKeyAutoGeneratedOnCreate);
}
// Apply auto-map Property attribute ConverterType configuration.
if (mpa.ConverterType != null)
{
if (!typeof(IPropertyMapperConverter).IsAssignableFrom(mpa.ConverterType))
{
throw new MapperException($"Type '{type.Name}' Property '{p.Name}' has 'MapperPropertyAttribute' with ConverterType set to '{mpa.ConverterType.Name}' which does not implement 'IPropertyMapperConverter'.");
}
IPropertyMapperConverter pmc = null;
var pdef = mpa.ConverterType.GetProperty("Default", BindingFlags.FlattenHierarchy | BindingFlags.Public | BindingFlags.Static);
if (pdef == null)
{
if (mpa.ConverterType.GetConstructor(Type.EmptyTypes) == null)
{
throw new MapperException($"Type '{type.Name}' Property '{p.Name}' has 'MapperPropertyAttribute' with ConverterType set to '{mpa.ConverterType.Name}' does not have a static 'Default' property or default constructor.");
}
pmc = (IPropertyMapperConverter)Activator.CreateInstance(mpa.ConverterType);
}
else
{
pmc = (IPropertyMapperConverter)pdef.GetValue(null);
}
pmap.SetConverter(pmc);
continue;
}
// Apply auto-map Property attribute MapperType configuration for complex types.
if (pmap.IsSrceComplexType)
{
IEntityMapperBase em = null;
if (mpa.MapperType == null)
{
em = GetMapper(pmap.SrceComplexTypeReflector.ItemType);
}
else
{
if (!typeof(IEntityMapperBase).IsAssignableFrom(mpa.MapperType))
{
throw new MapperException($"Type '{type.Name}' Property '{p.Name}' has 'MapperPropertyAttribute' with MapperType set to '{mpa.MapperType.Name}' which does not implement 'IEntityMapper'.");
}
var mdef = mpa.MapperType.GetProperty("Default", BindingFlags.FlattenHierarchy | BindingFlags.Public | BindingFlags.Static);
if (mdef == null)
{
if (mpa.ConverterType.GetConstructor(Type.EmptyTypes) == null)
{
throw new MapperException($"Type '{type.Name}' Property '{p.Name}' has 'MapperPropertyAttribute' with MapperType set to '{mpa.MapperType.Name}' does not have a static 'Default' property or default constructor.");
}
em = (IEntityMapperBase)Activator.CreateInstance(mpa.MapperType);
}
else
{
em = (IEntityMapperBase)mdef.GetValue(null);
}
}
if (em != null)
{
pmap.SetMapper(em);
}
}
else if (mpa.MapperType != null)
{
throw new MapperException($"Type '{type.Name}' Property '{p.Name}' has 'MapperPropertyAttribute' with MapperType set to '{mpa.ConverterType.Name}' although the property is not a complex type.");
}
}
if (!hasProperties)
{
throw new MapperException($"AutoMapper has found no properties for Type '{type.Name}' that it is able to auto-map.");
}
_cache.Add(type, map);
return(map);
}
}