public static FastProperty GetProperty(
PropertyInfo propertyInfo,
PropertyCachingStrategy cachingStrategy = PropertyCachingStrategy.Cached)
{
Guard.NotNull(propertyInfo, nameof(propertyInfo));
FastProperty fastProperty = null;
if (TryGetCachedProperty(propertyInfo.ReflectedType, propertyInfo.Name, cachingStrategy == PropertyCachingStrategy.EagerCached, out fastProperty))
{
return(fastProperty);
}
var key = new PropertyKey(propertyInfo.ReflectedType, propertyInfo.Name);
if (!_singlePropertiesCache.TryGetValue(key, out fastProperty))
{
fastProperty = CreateInstance(propertyInfo);
if (cachingStrategy > PropertyCachingStrategy.Uncached)
{
_singlePropertiesCache.TryAdd(key, fastProperty);
}
}
return(fastProperty);
}
public void SetValue(object target, object value)
{
if (_inner != null)
{
_inner.SetValue(target, value);
}
if (_setter == null)
{
try
{
var fastProp = FastProperty.GetProperty(_pi, PropertyCachingStrategy.EagerCached);
if (fastProp.IsPublicSettable)
{
_setter = fastProp.ValueSetter;
}
if (_setter == null)
{
throw new Exception();
}
}
catch
{
CreateInnerProvider();
_inner.SetValue(target, value);
return;
}
}
_setter(target, value);
}
public static FastProperty GetProperty(
Type type,
string propertyName,
PropertyCachingStrategy cachingStrategy = PropertyCachingStrategy.Cached)
{
Guard.NotNull(type, nameof(type));
Guard.NotEmpty(propertyName, nameof(propertyName));
FastProperty fastProperty = null;
if (TryGetCachedProperty(type, propertyName, cachingStrategy == PropertyCachingStrategy.EagerCached, out fastProperty))
{
return(fastProperty);
}
var key = new PropertyKey(type, propertyName);
if (!_singlePropertiesCache.TryGetValue(key, out fastProperty))
{
var pi = type.GetProperty(propertyName, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance | BindingFlags.IgnoreCase);
if (pi != null)
{
fastProperty = CreateInstance(pi);
if (cachingStrategy > PropertyCachingStrategy.Uncached)
{
_singlePropertiesCache.TryAdd(key, fastProperty);
}
}
}
return(fastProperty);
}
private static FastProperty[] GetFastPropertiesFor(Type type)
{
return FastProperty.GetProperties(type, PropertyCachingStrategy.Uncached)
.Values
.Where(pi => pi.IsPublicSettable)
.ToArray();
}
public object GetValue(object target)
{
if (_inner != null)
{
return(_inner.GetValue(target));
}
if (_getter == null)
{
try
{
_getter = FastProperty.GetProperty(_pi, PropertyCachingStrategy.EagerCached).ValueGetter;
if (_getter == null)
{
throw new Exception();
}
}
catch
{
CreateInnerProvider();
return(_inner.GetValue(target));
}
}
return(_getter(target));
}
/// <summary>
/// Reflection helper method to set a property value
/// </summary>
/// <param name="instance"></param>
/// <param name="name"></param>
/// <param name="value"></param>
/// <returns></returns>
protected bool SetProperty(object instance, string name, object value)
{
var fastProp = _instanceType != null?FastProperty.GetProperty(_instanceType, name, PropertyCachingStrategy.EagerCached) : null;
if (fastProp != null)
{
fastProp.SetValue(instance ?? this, value);
return(true);
}
return(false);
}
/// <summary>
/// Checks whether a property exists in the Property collection
/// or as a property on the instance
/// </summary>
/// <param name="propertyName"></param>
/// <param name="includeInstanceProperties"></param>
/// <returns></returns>
public bool Contains(string propertyName, bool includeInstanceProperties = false)
{
if (Properties.ContainsKey(propertyName))
{
return(true);
}
if (includeInstanceProperties && _instance != null)
{
return(FastProperty.GetProperties(_instance).ContainsKey(propertyName));
}
return(false);
}
public static void Map <TFrom, TTo>(TFrom from, TTo to, CultureInfo culture = null)
where TFrom : class
where TTo : class
{
Guard.NotNull(from, nameof(from));
Guard.NotNull(to, nameof(to));
if (object.ReferenceEquals(from, to))
{
// Cannot map the same instance
return;
}
var fromType = from.GetType();
var toType = to.GetType();
ValidateType(fromType);
ValidateType(toType);
if (culture == null)
{
culture = CultureInfo.CurrentCulture;
}
var toProps = GetFastPropertiesFor(toType).ToArray();
foreach (var toProp in toProps)
{
var fromProp = FastProperty.GetProperty(fromType, toProp.Name, PropertyCachingStrategy.Uncached);
if (fromProp == null)
{
continue;
}
object value = null;
try
{
// Get the value from source instance and try to convert it to target props type
value = fromProp.GetValue(from).Convert(toProp.Property.PropertyType, culture);
// Set it
toProp.SetValue(to, value);
}
catch { }
}
}
/// <summary>
/// Returns all properties
/// </summary>
/// <param name="includeInstanceProperties"></param>
/// <returns></returns>
public IEnumerable <KeyValuePair <string, object> > GetProperties(bool includeInstanceProperties = false)
{
foreach (var key in this.Properties.Keys)
{
yield return(new KeyValuePair <string, object>(key, this.Properties[key]));
}
if (includeInstanceProperties && _instance != null)
{
foreach (var prop in FastProperty.GetProperties(_instance).Values)
{
if (!this.Properties.ContainsKey(prop.Name))
{
yield return(new KeyValuePair <string, object>(prop.Name, prop.GetValue(_instance)));
}
}
}
}
private static bool TryGetCachedProperty(
Type type,
string propertyName,
bool eagerCached,
out FastProperty fastProperty)
{
fastProperty = null;
IDictionary <string, FastProperty> allProperties;
if (eagerCached)
{
allProperties = (IDictionary <string, FastProperty>)GetProperties(type);
allProperties.TryGetValue(propertyName, out fastProperty);
}
if (fastProperty == null && _propertiesCache.TryGetValue(type, out allProperties))
{
allProperties.TryGetValue(propertyName, out fastProperty);
}
return(fastProperty != null);
}
private static void MapComplex(object from, object to, Type fromType, CultureInfo culture)
{
if (object.ReferenceEquals(from, to))
{
// Cannot map same instance or null source
return;
}
var toType = to.GetType();
var isEntityMapping = typeof(BaseEntity).IsAssignableFrom(toType);
var toProps = GetFastPropertiesFor(toType).ToArray();
foreach (var toProp in toProps)
{
var fromProp = FastProperty.GetProperty(fromType, toProp.Name, PropertyCachingStrategy.Cached);
if (fromProp == null)
{
continue;
}
var fromPropType = fromProp.Property.PropertyType;
var toPropType = toProp.Property.PropertyType;
var sourceValue = fromProp.GetValue(from);
if (isEntityMapping && (fromPropType == typeof(int) || fromPropType == typeof(int?)) && toPropType == typeof(int?) && object.Equals(0, sourceValue) && toProp.Name.EndsWith("Id"))
{
// TODO: This is more a hack than a proper solution. Find a more generic way to convert int FK properties...
// Special mapper, that avoids DbUpdate exceptions in cases where
// optional (nullable) int FK properties are 0 instead of "null"
// after mapping model > entity.
toProp.SetValue(to, null);
}
else if (TryMap(sourceValue, fromPropType, toPropType, culture, out var targetValue))
{
// Set it
toProp.SetValue(to, targetValue);
}
}
}
private IDictionary <string, FastProperty> GetInstanceProperties()
{
if (_instance == null)
{
return(EmptyProps);
}
if (_instanceProps == null)
{
var props = FastProperty.GetProperties(_instance) as IDictionary <string, FastProperty>;
if (_optMembers != null)
{
props = props
.Where(x => _optMethod == MemberOptMethod.Allow ? _optMembers.Contains(x.Key) : !_optMembers.Contains(x.Key))
.ToDictionary(x => x.Key, x => x.Value);
}
_instanceProps = props;
}
return(_instanceProps);
}
private static IEnumerable <FastProperty> GetFastPropertiesFor(Type type)
{
return(FastProperty.GetCandidateProperties(type)
.Select(pi => FastProperty.GetProperty(pi, PropertyCachingStrategy.Uncached))
.Where(pi => pi.IsPublicSettable));
}
