/// <summary>
/// Sets the <see cref="IPropertyMapperConverter{TSrceProperty, TDestProperty}"/> (used where a specific source and destination type conversion is required).
/// </summary>
/// <typeparam name="TDestProperty">The destination property <see cref="Type"/>.</typeparam>
/// <param name="converter">The <see cref="IPropertyMapperConverter{TSrceProperty, TDestProperty}"/>.</param>
/// <returns>The <see cref="PropertyMapperCustomBase{TSrce, TSrceProperty}"/>.</returns>
/// <remarks>The <see cref="Mapper"/> and <see cref="Converter"/> are mutually exclusive.</remarks>
public PropertyMapperCustomBase <TSrce, TSrceProperty> SetConverter <TDestProperty>(IPropertyMapperConverter <TSrceProperty, TDestProperty> converter)
{
if (Mapper != null && converter != null)
{
throw new MapperException("The Mapper and Converter cannot be both set; only one is permissible.");
}
Converter = converter;
return(this);
}
/// <summary>
/// Sets the <see cref="Converter"/>.
/// </summary>
/// <param name="converter">The <see cref="IPropertyMapperConverter"/>.</param>
void IPropertyMapperBase.SetConverter(IPropertyMapperConverter converter)
{
if (Mapper != null && converter != null)
{
throw new MapperException("The Mapper and Converter cannot be both set; only one is permissible.");
}
if (converter != null && converter.SrceType != typeof(TSrceProperty))
{
throw new MapperException($"The PropertyMapper SrceType '{typeof(TSrceProperty).Name}' and Converter SrceType '{converter.SrceType.Name}' must match.");
}
Converter = converter;
}
/// <summary>
/// Gets from cache (or creates and adds to cache) the <see cref="IODataMapper"/> (with option to merge alternate property configuration).
/// </summary>
private static IODataMapper GetOrCreateMapper(Type type, Dictionary <string, MemberInfo> altProps, string overrideEntityName)
{
if (_cache.TryGetValue(type, out IODataMapper map))
{
return(map);
}
lock (_lock)
{
if (_cache.TryGetValue(type, out map))
{
return(map);
}
if (!type.IsClass)
{
throw new MapperException($"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($"AutoMapper has found no properties for Type '{type.Name}' that it is able to auto-map.");
}
_cache.Add(type, map);
return(map);
}
}
/// <summary>
/// Sets the <see cref="IPropertyMapperConverter{TSrceProperty, TDestProperty}"/> (used where a specific source and destination type conversion is required).
/// </summary>
/// <typeparam name="TDestProperty">The destination property <see cref="Type"/>.</typeparam>
/// <param name="converter">The <see cref="IPropertyMapperConverter{TSrceProperty, TDestProperty}"/>.</param>
/// <returns>The <see cref="PropertyMapperCustomBase{TSrce, TSrceProperty}"/>.</returns>
public new ODataPropertyMapper<TSrce, TSrceProperty> SetConverter<TDestProperty>(IPropertyMapperConverter<TSrceProperty, TDestProperty> converter)
{
base.SetConverter(converter);
return this;
}
/// <summary>
/// Automatically map commonly named properties.
/// </summary>
private void AutomagicallyMap(string[] ignoreSrceProperties)
{
MapperPropertyAttribute mpa = null;
foreach (var sp in SrceType.GetProperties(BindingFlags.Public | BindingFlags.GetProperty | BindingFlags.SetProperty | BindingFlags.Instance))
{
// Do not auto-map where ignore has been specified.
if (ignoreSrceProperties.Contains(sp.Name))
{
continue;
}
if (sp.GetCustomAttributes(typeof(MapperIgnoreAttribute), true).OfType <MapperIgnoreAttribute>().FirstOrDefault() != null)
{
continue;
}
// Find corresponding property.
mpa = sp.GetCustomAttributes(typeof(MapperPropertyAttribute), true).OfType <MapperPropertyAttribute>().FirstOrDefault();
var dname = mpa == null || string.IsNullOrEmpty(mpa.Name) ? sp.Name : mpa.Name;
var dp = DestType.GetProperty(dname, BindingFlags.Public | BindingFlags.GetProperty | BindingFlags.SetProperty | BindingFlags.Instance);
if (dp == null)
{
if (mpa != null)
{
throw new InvalidOperationException($"Type '{SrceType.Name}' Property '{sp.Name}' has 'MapperPropertyAttribute' with Name set to '{dname}' which does not exist for destination Type '{DestType.Name}'.");
}
continue;
}
// Create the lambda expressions for the property and add to the mapper.
var spe = Expression.Parameter(SrceType, "x");
var sex = Expression.Lambda(Expression.Property(spe, sp.Name), spe);
var dpe = Expression.Parameter(DestType, "x");
var dex = Expression.Lambda(Expression.Property(dpe, dname), dpe);
var pmap = (IPropertyMapper <TSrce, TDest>) typeof(EntityMapper <TSrce, TDest>)
.GetMethod("PropertySrceAndDest", BindingFlags.NonPublic | BindingFlags.Instance)
.MakeGenericMethod(new Type[] { sp.PropertyType, dp.PropertyType })
.Invoke(this, new object[] { sex, dex });
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($"Type '{SrceType.Name}' Property '{sp.Name}' has 'MapperPropertyAttribute' with ConverterType set to '{mpa.ConverterType.Name}' which does not implement 'IPropertyMapperConverter'.");
}
IPropertyMapperConverter pmc = null;
var pdef = mpa.ConverterType.GetProperty("Default", BindingFlags.FlattenHierarchy | BindingFlags.Public | BindingFlags.Static);
if (pdef == null)
{
if (mpa.ConverterType.GetConstructor(Type.EmptyTypes) == null)
{
throw new MapperException($"Type '{SrceType.Name}' Property '{sp.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)
{
if (!typeof(IEntityMapperBase).IsAssignableFrom(mpa.MapperType))
{
throw new MapperException($"Type '{SrceType.Name}' Property '{sp.Name}' has 'MapperPropertyAttribute' with MapperType set to '{mpa.MapperType.Name}' which does not implement 'IEntityMapper'.");
}
var mdef = mpa.MapperType.GetProperty("Default", BindingFlags.FlattenHierarchy | BindingFlags.Public | BindingFlags.Static);
if (mdef == null)
{
if (mpa.ConverterType.GetConstructor(Type.EmptyTypes) == null)
{
throw new MapperException($"Type '{SrceType.Name}' Property '{sp.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 '{SrceType.Name}' Property '{sp.Name}' has 'MapperPropertyAttribute' with MapperType set to '{mpa.ConverterType.Name}' although the property is not a complex type.");
}
}
}
