/// <summary>
/// Maps a property to another class map.
/// </summary>
/// <typeparam name="TClassMap">The type of the class map.</typeparam>
/// <param name="expression">The expression.</param>
/// <param name="constructorArgs">Constructor arguments used to create the reference map.</param>
/// <returns>The reference mapping for the property.</returns>
public virtual CsvPropertyReferenceMap References <TClassMap>(Expression <Func <T, object> > expression,
params object[] constructorArgs) where TClassMap : CsvClassMap
{
var property = ReflectionHelper.GetProperty(expression);
var existingMap = ReferenceMaps.SingleOrDefault(m =>
m.Data.Property == property ||
m.Data.Property.Name == property.Name
&&
(m.Data.Property.DeclaringType.IsAssignableFrom(property.DeclaringType) ||
property.DeclaringType.IsAssignableFrom(m.Data.Property.DeclaringType)));
if (existingMap != null)
{
return(existingMap);
}
var map = ReflectionHelper.CreateInstance <TClassMap>(constructorArgs);
map.CreateMap();
map.ReIndex(GetMaxIndex() + 1);
var reference = new CsvPropertyReferenceMap(property, map);
ReferenceMaps.Add(reference);
return(reference);
}
/// <summary>
/// Maps a property to another class map.
/// </summary>
/// <param name="type">The type.</param>
/// <param name="expression">The expression.</param>
/// <returns>The reference mapping for the property</returns>
protected virtual CsvPropertyReferenceMap References(Type type, Expression <Func <T, object> > expression)
{
var property = ReflectionHelper.GetProperty(expression);
var reference = new CsvPropertyReferenceMap(type, property);
ReferenceMaps.Add(reference);
return(reference);
}
/// <summary>
/// Maps a property to another class map.
/// </summary>
/// <typeparam name="TClassMap">The type of the class map.</typeparam>
/// <param name="expression">The expression.</param>
/// <returns>The reference mapping for the property.</returns>
protected virtual CsvPropertyReferenceMap <TClassMap> References <TClassMap>(Expression <Func <T, object> > expression) where TClassMap : CsvClassMap
{
var property = ReflectionHelper.GetProperty(expression);
var reference = new CsvPropertyReferenceMap <TClassMap>(property);
ReferenceMaps.Add(reference);
return(reference);
}
/// <summary>
/// Maps a property to another class map.
/// </summary>
/// <param name="map">Instance map</param>
/// <param name="expression">The expression.</param>
/// <returns>The reference mapping for the property</returns>
protected virtual CsvPropertyReferenceMap References(CsvClassMap map, Expression <Func <T, object> > expression)
{
var property = ReflectionHelper.GetProperty(expression);
map.CreateMap();
map.ReIndex(GetMaxIndex() + 1);
var reference = new CsvPropertyReferenceMap(property, map);
ReferenceMaps.Add(reference);
return(reference);
}
/// <summary>
/// Maps a property to another class map.
/// </summary>
/// <param name="type">The type.</param>
/// <param name="expression">The expression.</param>
/// <returns>The reference mapping for the property</returns>
protected virtual CsvPropertyReferenceMap References(Type type, Expression <Func <T, object> > expression)
{
var property = ReflectionHelper.GetProperty(expression);
var map = (CsvClassMap)ReflectionHelper.CreateInstance(type);
map.IndexStart = GetMaxIndex() + 1;
map.CreateMap();
var reference = new CsvPropertyReferenceMap(property, map);
ReferenceMaps.Add(reference);
return(reference);
}
/// <summary>
/// Maps a property to another class map.
/// </summary>
/// <param name="type">The type.</param>
/// <param name="expression">The expression.</param>
/// <param name="constructorArgs">Constructor arguments used to create the reference map.</param>
/// <returns>The reference mapping for the property</returns>
protected virtual CsvPropertyReferenceMap References(Type type, Expression <Func <T, object> > expression, params object[] constructorArgs)
{
var property = ReflectionHelper.GetProperty(expression);
var map = (CsvClassMap)ReflectionHelper.CreateInstance(type, constructorArgs);
map.CreateMap();
map.ReIndex(GetMaxIndex() + 1);
var reference = new CsvPropertyReferenceMap(property, map);
ReferenceMaps.Add(reference);
return(reference);
}
/// <summary>
/// Auto maps the given map and checks for circular references as it goes.
/// </summary>
/// <param name="map">The map to auto map.</param>
/// <param name="ignoreReferences">
/// A value indicating if references should be ignored when auto mapping.
/// True to ignore references, otherwise false.
/// </param>
/// <param name="prefixReferenceHeaders">
/// A value indicating if headers of reference properties should
/// get prefixed by the parent property name.
/// True to prefix, otherwise false.
/// </param>
/// <param name="mapParents">The list of parents for the map.</param>
internal static void AutoMapInternal(CsvClassMap map, bool ignoreReferences, bool prefixReferenceHeaders,
LinkedList <Type> mapParents, int indexStart = 0)
{
var genericArguments = map.GetType().GetTypeInfo().BaseType.GetGenericArguments()[0];
if (typeof(IEnumerable).IsAssignableFrom(genericArguments))
{
throw new CsvConfigurationException(
"Types that inherit IEnumerable cannot be auto mapped. Did you accidentally call GetRecord or WriteRecord which acts on a single record instead of calling GetRecords or WriteRecords which acts on a list of records?");
}
var properties = genericArguments.GetProperties(BindingFlags.Instance | BindingFlags.Public);
for (int i = 0; i < properties.Length; i++)
{
var propertyInfo = properties[i];
var type = TypeConverterFactory.GetConverter(propertyInfo.PropertyType).GetType();
if (type != typeof(EnumerableConverter))
{
bool flag = type == typeof(DefaultTypeConverter);
if (!(flag & (propertyInfo.PropertyType.GetConstructor(new Type[0]) != null)))
{
var csvPropertyMap = new CsvPropertyMap(propertyInfo);
csvPropertyMap.Data.Index = map.GetMaxIndex() + 1;
if (csvPropertyMap.Data.TypeConverter.CanConvertFrom(typeof(string)) ||
csvPropertyMap.Data.TypeConverter.CanConvertTo(typeof(string)) && !flag)
{
map.PropertyMaps.Add(csvPropertyMap);
}
}
else if (!ignoreReferences && !CheckForCircularReference(propertyInfo.PropertyType, mapParents))
{
mapParents.AddLast(genericArguments);
var csvClassMap =
(CsvClassMap)
ReflectionHelper.CreateInstance(
typeof(DefaultCsvClassMap <>).MakeGenericType(propertyInfo.PropertyType));
AutoMapInternal(csvClassMap, false, prefixReferenceHeaders, mapParents, map.GetMaxIndex() + 1);
if (csvClassMap.PropertyMaps.Count > 0 || csvClassMap.ReferenceMaps.Count > 0)
{
var csvPropertyReferenceMap = new CsvPropertyReferenceMap(propertyInfo, csvClassMap);
if (prefixReferenceHeaders)
{
csvPropertyReferenceMap.Prefix(null);
}
map.ReferenceMaps.Add(csvPropertyReferenceMap);
}
}
}
}
map.ReIndex(indexStart);
}
/// <summary>
/// Maps a property/field to another class map.
/// </summary>
/// <param name="classMapType">The type of the class map.</param>
/// <param name="member">The property/field.</param>
/// <param name="constructorArgs">Constructor arguments used to create the reference map.</param>
/// <returns>The reference mapping for the property/field.</returns>
public virtual CsvPropertyReferenceMap References(Type classMapType, MemberInfo member, params object[] constructorArgs)
{
if (!typeof(CsvClassMap).IsAssignableFrom(classMapType))
{
throw new InvalidOperationException($"Argument {nameof( classMapType )} is not a CsvClassMap.");
}
var existingMap = ReferenceMaps.Find(member);
if (existingMap != null)
{
return(existingMap);
}
var map = (CsvClassMap)ReflectionHelper.CreateInstance(classMapType, constructorArgs);
map.ReIndex(GetMaxIndex() + 1);
var reference = new CsvPropertyReferenceMap(member, map);
ReferenceMaps.Add(reference);
return(reference);
}
/// <summary>
/// Auto maps the given map and checks for circular references as it goes.
/// </summary>
/// <param name="map">The map to auto map.</param>
/// <param name="options">Options for auto mapping.</param>
/// <param name="mapParents">The list of parents for the map.</param>
/// <param name="indexStart">The index starting point.</param>
internal static void AutoMapInternal(CsvClassMap map, AutoMapOptions options, LinkedList <Type> mapParents, int indexStart = 0)
{
var type = map.GetType().GetTypeInfo().BaseType.GetGenericArguments()[0];
if (typeof(IEnumerable).IsAssignableFrom(type))
{
throw new CsvConfigurationException("Types that inherit IEnumerable cannot be auto mapped. " +
"Did you accidentally call GetRecord or WriteRecord which " +
"acts on a single record instead of calling GetRecords or " +
"WriteRecords which acts on a list of records?");
}
var flags = BindingFlags.Instance | BindingFlags.Public;
if (options.IncludePrivateProperties)
{
flags = flags | BindingFlags.NonPublic;
}
var members = new List <MemberInfo>();
if ((options.MemberTypes & MemberTypes.Properties) == MemberTypes.Properties)
{
var properties = type.GetProperties(flags);
members.AddRange(properties);
}
if ((options.MemberTypes & MemberTypes.Fields) == MemberTypes.Fields)
{
var fields = new List <MemberInfo>();
foreach (var field in type.GetFields(flags))
{
if (!field.GetCustomAttributes(typeof(CompilerGeneratedAttribute), false).Any())
{
fields.Add(field);
}
}
members.AddRange(fields);
}
foreach (var member in members)
{
var typeConverterType = TypeConverterFactory.GetConverter(member.MemberType()).GetType();
if (typeConverterType == typeof(EnumerableConverter))
{
// The IEnumerable converter just throws an exception so skip it.
continue;
}
var isDefaultConverter = typeConverterType == typeof(DefaultTypeConverter);
var hasDefaultConstructor = member.MemberType().GetConstructor(new Type[0]) != null;
if (isDefaultConverter && hasDefaultConstructor)
{
if (options.IgnoreReferences)
{
continue;
}
// If the type is not one covered by our type converters
// and it has a parameterless constructor, create a
// reference map for it.
if (CheckForCircularReference(member.MemberType(), mapParents))
{
continue;
}
mapParents.AddLast(type);
var refMapType = typeof(DefaultCsvClassMap <>).MakeGenericType(member.MemberType());
var refMap = (CsvClassMap)ReflectionHelper.CreateInstance(refMapType);
var refOptions = options.Copy();
refOptions.IgnoreReferences = false;
AutoMapInternal(refMap, options, mapParents, map.GetMaxIndex() + 1);
if (refMap.PropertyMaps.Count > 0 || refMap.ReferenceMaps.Count > 0)
{
var referenceMap = new CsvPropertyReferenceMap(member, refMap);
if (options.PrefixReferenceHeaders)
{
referenceMap.Prefix();
}
map.ReferenceMaps.Add(referenceMap);
}
}
else
{
var propertyMap = new CsvPropertyMap(member);
// Use global values as the starting point.
propertyMap.Data.TypeConverterOptions = TypeConverterOptions.Merge(options.TypeConverterOptionsFactory.GetOptions(member.MemberType()));
propertyMap.Data.Index = map.GetMaxIndex() + 1;
if (!isDefaultConverter)
{
// Only add the property/field map if it can be converted later on.
// If the property/field will use the default converter, don't add it because
// we don't want the .ToString() value to be used when auto mapping.
map.PropertyMaps.Add(propertyMap);
}
}
}
map.ReIndex(indexStart);
}
/// <summary>
/// Auto maps the given map and checks for circular references as it goes.
/// </summary>
/// <param name="map">The map to auto map.</param>
/// <param name="ignoreReferences">A value indicating if references should be ignored when auto mapping.
/// True to ignore references, otherwise false.</param>
/// <param name="prefixReferenceHeaders">A value indicating if headers of reference properties should
/// get prefixed by the parent property name.
/// True to prefix, otherwise false.</param>
/// <param name="mapParents">The list of parents for the map.</param>
/// <param name="indexStart">The index starting point.</param>
internal static void AutoMapInternal(CsvClassMap map, bool ignoreReferences, bool prefixReferenceHeaders, LinkedList <Type> mapParents, int indexStart = 0)
{
var type = map.GetType().GetTypeInfo().BaseType.GetGenericArguments()[0];
if (typeof(IEnumerable).IsAssignableFrom(type))
{
throw new CsvConfigurationException("Types that inherit IEnumerable cannot be auto mapped. " +
"Did you accidentally call GetRecord or WriteRecord which " +
"acts on a single record instead of calling GetRecords or " +
"WriteRecords which acts on a list of records?");
}
var properties = type.GetProperties(BindingFlags.Instance | BindingFlags.Public);
foreach (var property in properties)
{
var typeConverterType = TypeConverterFactory.GetConverter(property.PropertyType).GetType();
if (typeConverterType == typeof(EnumerableConverter))
{
// The IEnumerable converter just throws an exception so skip it.
continue;
}
var isDefaultConverter = typeConverterType == typeof(DefaultTypeConverter);
var hasDefaultConstructor = property.PropertyType.GetConstructor(new Type[0]) != null;
if (isDefaultConverter && hasDefaultConstructor)
{
if (ignoreReferences)
{
continue;
}
// If the type is not one covered by our type converters
// and it has a parameterless constructor, create a
// reference map for it.
if (CheckForCircularReference(property.PropertyType, mapParents))
{
continue;
}
mapParents.AddLast(type);
var refMapType = typeof(DefaultCsvClassMap <>).MakeGenericType(property.PropertyType);
var refMap = (CsvClassMap)ReflectionHelper.CreateInstance(refMapType);
AutoMapInternal(refMap, false, prefixReferenceHeaders, mapParents, map.GetMaxIndex() + 1);
if (refMap.PropertyMaps.Count > 0 || refMap.ReferenceMaps.Count > 0)
{
var referenceMap = new CsvPropertyReferenceMap(property, refMap);
if (prefixReferenceHeaders)
{
referenceMap.Prefix();
}
map.ReferenceMaps.Add(referenceMap);
}
}
else
{
var propertyMap = new CsvPropertyMap(property);
propertyMap.Data.Index = map.GetMaxIndex() + 1;
if (!isDefaultConverter)
{
// Only add the property map if it can be converted later on.
// If the property will use the default converter, don't add it because
// we don't want the .ToString() value to be used when auto mapping.
map.PropertyMaps.Add(propertyMap);
}
}
}
map.ReIndex(indexStart);
}
/// <summary>
/// Auto maps the given map and checks for circular references as it goes.
/// </summary>
/// <param name="map">The map to auto map.</param>
/// <param name="options">Options for auto mapping.</param>
/// <param name="mapParents">The list of parents for the map.</param>
/// <param name="indexStart">The index starting point.</param>
protected virtual void AutoMapProperties(CsvClassMap map, AutoMapOptions options, LinkedList <Type> mapParents, int indexStart = 0)
{
var type = map.GetGenericType();
var flags = BindingFlags.Instance | BindingFlags.Public;
if (options.IncludePrivateProperties)
{
flags = flags | BindingFlags.NonPublic;
}
var members = new List <MemberInfo>();
if (options.MemberTypes.HasFlag(MemberTypes.Properties))
{
// We need to go up the declaration tree and find the actual type the property
// exists on and use that PropertyInfo instead. This is so we can get the private
// set method for the property.
var properties = new List <PropertyInfo>();
foreach (var property in type.GetProperties(flags))
{
properties.Add(ReflectionHelper.GetDeclaringProperty(type, property, flags));
}
members.AddRange(properties);
}
if (options.MemberTypes.HasFlag(MemberTypes.Fields))
{
var fields = new List <MemberInfo>();
foreach (var field in type.GetFields(flags))
{
if (!field.GetCustomAttributes(typeof(CompilerGeneratedAttribute), false).Any())
{
fields.Add(field);
}
}
members.AddRange(fields);
}
foreach (var member in members)
{
var typeConverterType = TypeConverterFactory.Current.GetConverter(member.MemberType()).GetType();
if (options.HasHeaderRecord && enumerableConverters.Contains(typeConverterType))
{
// Enumerable converters can't write the header properly, so skip it.
continue;
}
var memberTypeInfo = member.MemberType().GetTypeInfo();
var isDefaultConverter = typeConverterType == typeof(DefaultTypeConverter);
if (isDefaultConverter && (memberTypeInfo.HasParameterlessConstructor() || memberTypeInfo.IsUserDefinedStruct()))
{
// If the type is not one covered by our type converters
// and it has a parameterless constructor, create a
// reference map for it.
if (options.IgnoreReferences)
{
continue;
}
if (CheckForCircularReference(member.MemberType(), mapParents))
{
continue;
}
mapParents.AddLast(type);
var refMapType = typeof(DefaultCsvClassMap <>).MakeGenericType(member.MemberType());
var refMap = (CsvClassMap)ReflectionHelper.CreateInstance(refMapType);
var refOptions = options.Copy();
refOptions.IgnoreReferences = false;
// Need to use Max here for nested types.
AutoMapProperties(refMap, options, mapParents, Math.Max(map.GetMaxIndex() + 1, indexStart));
mapParents.Drop(mapParents.Find(type));
if (refMap.PropertyMaps.Count > 0 || refMap.ReferenceMaps.Count > 0)
{
var referenceMap = new CsvPropertyReferenceMap(member, refMap);
if (options.PrefixReferenceHeaders)
{
referenceMap.Prefix();
}
map.ReferenceMaps.Add(referenceMap);
}
}
else
{
var propertyMap = CsvPropertyMap.CreateGeneric(map.ClassType, member);
// Use global values as the starting point.
propertyMap.Data.TypeConverterOptions = TypeConverterOptions.Merge(new TypeConverterOptions(), options.TypeConverterOptionsFactory.GetOptions(member.MemberType()), propertyMap.Data.TypeConverterOptions);
propertyMap.Data.Index = map.GetMaxIndex() + 1;
if (!isDefaultConverter)
{
// Only add the property/field map if it can be converted later on.
// If the property/field will use the default converter, don't add it because
// we don't want the .ToString() value to be used when auto mapping.
map.PropertyMaps.Add(propertyMap);
}
}
}
map.ReIndex(indexStart);
}
/// <summary>
/// Auto maps the given map and checks for circular references as it goes.
/// </summary>
/// <param name="map">The map to auto map.</param>
/// <param name="options">Options for auto mapping.</param>
/// <param name="mapParents">The list of parents for the map.</param>
/// <param name="indexStart">The index starting point.</param>
internal static void AutoMapInternal( CsvClassMap map, AutoMapOptions options, LinkedList<Type> mapParents, int indexStart = 0 )
{
var type = map.GetType().GetTypeInfo().BaseType.GetGenericArguments()[0];
if( typeof( IEnumerable ).IsAssignableFrom( type ) )
{
throw new CsvConfigurationException( "Types that inherit IEnumerable cannot be auto mapped. " +
"Did you accidentally call GetRecord or WriteRecord which " +
"acts on a single record instead of calling GetRecords or " +
"WriteRecords which acts on a list of records?" );
}
var flags = BindingFlags.Instance | BindingFlags.Public;
if( options.IncludePrivateProperties )
{
flags = flags | BindingFlags.NonPublic;
}
var members = new List<MemberInfo>();
if( ( options.MemberTypes & MemberTypes.Properties ) == MemberTypes.Properties )
{
var properties = type.GetProperties( flags );
members.AddRange( properties );
}
if( ( options.MemberTypes & MemberTypes.Fields ) == MemberTypes.Fields )
{
var fields = new List<MemberInfo>();
foreach( var field in type.GetFields( flags ) )
{
if( !field.GetCustomAttributes( typeof( CompilerGeneratedAttribute ), false ).Any() )
{
fields.Add( field );
}
}
members.AddRange( fields );
}
foreach( var member in members )
{
var typeConverterType = TypeConverterFactory.GetConverter( member.MemberType() ).GetType();
if( typeConverterType == typeof( EnumerableConverter ) )
{
// The IEnumerable converter just throws an exception so skip it.
continue;
}
var isDefaultConverter = typeConverterType == typeof( DefaultTypeConverter );
var hasDefaultConstructor = member.MemberType().GetConstructor( new Type[0] ) != null;
if( isDefaultConverter && hasDefaultConstructor )
{
if( options.IgnoreReferences )
{
continue;
}
// If the type is not one covered by our type converters
// and it has a parameterless constructor, create a
// reference map for it.
if( CheckForCircularReference( member.MemberType(), mapParents ) )
{
continue;
}
mapParents.AddLast( type );
var refMapType = typeof( DefaultCsvClassMap<> ).MakeGenericType( member.MemberType() );
var refMap = (CsvClassMap)ReflectionHelper.CreateInstance( refMapType );
var refOptions = options.Copy();
refOptions.IgnoreReferences = false;
AutoMapInternal( refMap, options, mapParents, map.GetMaxIndex() + 1 );
if( refMap.PropertyMaps.Count > 0 || refMap.ReferenceMaps.Count > 0 )
{
var referenceMap = new CsvPropertyReferenceMap( member, refMap );
if( options.PrefixReferenceHeaders )
{
referenceMap.Prefix();
}
map.ReferenceMaps.Add( referenceMap );
}
}
else
{
var propertyMap = new CsvPropertyMap( member );
// Use global values as the starting point.
propertyMap.Data.TypeConverterOptions = TypeConverterOptions.Merge( options.TypeConverterOptionsFactory.GetOptions( member.MemberType() ) );
propertyMap.Data.Index = map.GetMaxIndex() + 1;
if( !isDefaultConverter )
{
// Only add the property/field map if it can be converted later on.
// If the property/field will use the default converter, don't add it because
// we don't want the .ToString() value to be used when auto mapping.
map.PropertyMaps.Add( propertyMap );
}
}
}
map.ReIndex( indexStart );
}
/// <summary>
/// Maps a property/field to another class map.
/// </summary>
/// <param name="classMapType">The type of the class map.</param>
/// <param name="member">The property/field.</param>
/// <param name="constructorArgs">Constructor arguments used to create the reference map.</param>
/// <returns>The reference mapping for the property/field.</returns>
public virtual CsvPropertyReferenceMap References( Type classMapType, MemberInfo member, params object[] constructorArgs )
{
if( !typeof( CsvClassMap ).IsAssignableFrom( classMapType ) )
{
throw new InvalidOperationException( $"Argument {nameof( classMapType )} is not a CsvClassMap." );
}
var existingMap = ReferenceMaps.Find( member );
if( existingMap != null )
{
return existingMap;
}
var map = (CsvClassMap)ReflectionHelper.CreateInstance( classMapType, constructorArgs );
map.ReIndex( GetMaxIndex() + 1 );
var reference = new CsvPropertyReferenceMap( member, map );
ReferenceMaps.Add( reference );
return reference;
}
