/// <returns>NullProperty if the value is null</returns>
public Property CreateProperty(string name, object value)
{
if (value == null)
{
return(new NullProperty(name));
}
// If value type is recognized, it will be taken from typeinfo cache
var typeInfo = InternalTypeInfo.GetTypeInfo(value);
// Is it simple type
var property = CreateSimpleProperty(name, typeInfo, value);
if (property != null)
{
return(property);
}
// From now it can only be an instance of ReferenceTargetProperty
var referenceTarget = CreateReferenceTargetInstance(name, typeInfo);
// Search in Cache
if (_propertyCache.TryGetValue(value, out var cachedTarget))
{
// Value was already referenced
// Its reference will be used
cachedTarget.Reference.Count++;
referenceTarget.MakeFlatCopyFrom(cachedTarget);
return(referenceTarget);
}
// Target was not found in cache
// it must be created
// Adding property to cache
referenceTarget.Reference = new ReferenceInfo
{
Id = _currentReferenceId++
};
_propertyCache.Add(value, referenceTarget);
// Parsing the property
var handled = FillSingleDimensionalArrayProperty(referenceTarget as SingleDimensionalArrayProperty,
typeInfo,
value);
handled = handled ||
FillMultiDimensionalArrayProperty(referenceTarget as MultiDimensionalArrayProperty, typeInfo,
value);
handled = handled || FillDictionaryProperty(referenceTarget as DictionaryProperty, typeInfo, value);
handled = handled || FillCollectionProperty(referenceTarget as CollectionProperty, typeInfo, value);
handled = handled || FillComplexProperty(referenceTarget as ComplexProperty, typeInfo, value);
if (!handled)
{
throw new InvalidOperationException($"Property cannot be filled. Property: {referenceTarget}");
}
return(referenceTarget);
}
private bool FillComplexProperty(ComplexProperty property, InternalTypeInfo typeInfo, object value)
{
if (property == null)
{
return(false);
}
// Parsing properties
ParseProperties(property, typeInfo, value);
return(true);
}
private static Property CreateSimpleProperty(string name, InternalTypeInfo typeInfo, object value)
{
if (!typeInfo.IsSimple)
{
return(null);
}
var result = new SimpleProperty(name, typeInfo.Type)
{
Value = value
};
return(result);
}
private void ParseCollectionItems(CollectionProperty property, InternalTypeInfo info, object value)
{
property.ElementType = info.ElementType;
var collection = (IEnumerable)value;
foreach (var item in collection)
{
var itemProperty = CreateProperty(null, item);
property.Items.Add(itemProperty);
}
}
private void ParseProperties(ComplexProperty property, InternalTypeInfo typeInfo, object value)
{
var propertyInfos = _propertyProvider.GetProperties(typeInfo);
foreach (var propertyInfo in propertyInfos)
{
var subValue = propertyInfo.GetValue(value, _emptyObjectArray);
var subProperty = CreateProperty(propertyInfo.Name, subValue);
property.Properties.Add(subProperty);
}
}
private bool FillDictionaryProperty(DictionaryProperty property, InternalTypeInfo info, object value)
{
if (property == null)
{
return(false);
}
// Properties
ParseProperties(property, info, value);
// Items
ParseDictionaryItems(property, info, value);
return(true);
}
private bool FillCollectionProperty(CollectionProperty property, InternalTypeInfo info, object value)
{
if (property == null)
{
return(false);
}
// Parsing properties
ParseProperties(property, info, value);
// Parse Items
ParseCollectionItems(property, info, value);
return(true);
}
private void ParseDictionaryItems(DictionaryProperty property, InternalTypeInfo info, object value)
{
property.KeyType = info.KeyType;
property.ValueType = info.ElementType;
var dictionary = (IDictionary)value;
foreach (DictionaryEntry entry in dictionary)
{
var keyProperty = CreateProperty(null, entry.Key);
var valueProperty = CreateProperty(null, entry.Value);
property.Items.Add(new KeyValueItem(keyProperty, valueProperty));
}
}
/// <summary>
/// Fills the <see cref="InternalTypeInfo.KeyType" /> and <see cref="InternalTypeInfo.ElementType" /> properties
/// to target <see paramref="target" /> from <paramref name="source" />.
/// </summary>
/// <returns><c>TRUE</c> if the key and value definition was found, otherwise <c>FALSE</c></returns>
private static bool FillKeyAndElementType(InternalTypeInfo source, Type target)
{
var targetInfo = target.GetTypeInfo();
if (!targetInfo.IsGenericType)
{
return(false);
}
var arguments = target.GetGenericArguments();
if (source.IsDictionary)
{
// in Dictionary there are keys and values
source.KeyType = arguments[0];
source.ElementType = arguments[1];
}
else
{
// In Collection there are only items
source.ElementType = arguments[0];
}
return(arguments.Length > 0);
}
/// <summary>
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
public static InternalTypeInfo GetTypeInfo(Type type)
{
// check if Info is in cache
var typeInfo = Cache.TryGetTypeInfo(type);
if (typeInfo != null)
{
return(typeInfo);
}
// no info in cache yet
typeInfo = new InternalTypeInfo
{
Type = type,
IsSimple = Tools.IsSimple(type)
};
// check if array of byte
if (type == typeof(byte[]))
{
typeInfo.ElementType = typeof(byte);
}
// Only not simple types can be Collections
if (!typeInfo.IsSimple)
{
// check if it is an Array
typeInfo.IsArray = Tools.IsArray(type);
if (typeInfo.IsArray)
{
// Array? What is its element type?
if (type.HasElementType)
{
typeInfo.ElementType = type.GetElementType();
}
// How many dimensions
typeInfo.ArrayDimensionCount = type.GetArrayRank();
}
else
{
// It is not Array, maybe Enumerable?
typeInfo.IsEnumerable = Tools.IsEnumerable(type);
if (typeInfo.IsEnumerable)
{
// it is Enumerable maybe Collection?
typeInfo.IsCollection = Tools.IsCollection(type);
if (typeInfo.IsCollection)
{
// Sure it is a Collection, but maybe Dictionary also?
typeInfo.IsDictionary = Tools.IsDictionary(type);
// Fill its key and value types, if the listing is generic
bool elementTypeDefinitionFound;
var examinedType = type;
do
{
elementTypeDefinitionFound = FillKeyAndElementType(typeInfo, examinedType);
examinedType = examinedType.GetTypeInfo().BaseType;
// until key and element definition was found, or the base typ is an object
} while (!elementTypeDefinitionFound && examinedType != null &&
examinedType != typeof(object));
}
}
}
}
if (!Cache.Contains(typeInfo))
{
Cache.Add(typeInfo);
}
return(typeInfo);
}
private static ReferenceTargetProperty CreateReferenceTargetInstance(string name, InternalTypeInfo typeInfo)
{
// Is it array?
if (typeInfo.IsArray)
{
if (typeInfo.ArrayDimensionCount < 2)
{
return(new SingleDimensionalArrayProperty(name, typeInfo.Type));
}
// MultiD-Array
return(new MultiDimensionalArrayProperty(name, typeInfo.Type));
}
if (typeInfo.IsDictionary)
{
return(new DictionaryProperty(name, typeInfo.Type));
}
if (typeInfo.IsCollection)
{
return(new CollectionProperty(name, typeInfo.Type));
}
if (typeInfo.IsEnumerable)
{
return(new CollectionProperty(name, typeInfo.Type));
}
// If nothing was recognized, a complex type will be created
return(new ComplexProperty(name, typeInfo.Type));
}
private bool FillSingleDimensionalArrayProperty(SingleDimensionalArrayProperty property, InternalTypeInfo info,
object value)
{
if (property == null)
{
return(false);
}
property.ElementType = info.ElementType;
var analyzer = new ArrayAnalyzer(value);
// Dimensionen
var dimensionInfo = analyzer.ArrayInfo.DimensionInfos[0];
property.LowerBound = dimensionInfo.LowerBound;
// Items
foreach (var item in analyzer.GetValues())
{
var itemProperty = CreateProperty(null, item);
property.Items.Add(itemProperty);
}
return(true);
}
private bool FillMultiDimensionalArrayProperty(MultiDimensionalArrayProperty property, InternalTypeInfo info,
object value)
{
if (property == null)
{
return(false);
}
property.ElementType = info.ElementType;
var analyzer = new ArrayAnalyzer(value);
// DimensionInfos
property.DimensionInfos = analyzer.ArrayInfo.DimensionInfos;
// Items
foreach (var indexSet in analyzer.GetIndexes())
{
var subValue = ((Array)value).GetValue(indexSet);
var itemProperty = CreateProperty(null, subValue);
property.Items.Add(new MultiDimensionalArrayItem(indexSet, itemProperty));
}
return(true);
}
