public static bool SetPropertyValue <T>(this object candidate, PropertyInfo property, T value)
{
if (candidate == null)
{
throw new ArgumentNullException("candidate");
}
if (property == null)
{
throw new ArgumentNullException("property");
}
if (property.PropertyType != typeof(T) && !property.PropertyType.IsSubclassOf(typeof(T)))
{
Type declaringType = property.DeclaringType;
throw new ArgumentException(String.Format("Cannot set value of Type {0} on Property {1}.{2} of Type {3}", typeof(T), declaringType != null ? declaringType.Name : "", property.Name, property.PropertyType));
}
try
{
PropertyAccessor.Create(property).Set(candidate, value);
return(true);
}
catch
{
return(false);
}
}
public static void MergeInto <T>(this T source, T target)
{
Type type = typeof(T);
IEnumerable <FieldInfo> fields = type.GetFields().Where(f => f.GetCustomAttribute <MergeFieldAttribute>() != null);
foreach (FieldInfo field in fields)
{
object value = field.GetValue(source);
object targetValue = field.GetValue(target);
value = GetLatestVersion(targetValue, value);
field.SetValue(target, value);
}
IEnumerable <PropertyInfo> properties = type.GetProperties().Where(p => p.GetCustomAttribute <MergeFieldAttribute>() != null);
foreach (PropertyInfo property in properties)
{
PropertyAccessor propertyAccessor = PropertyAccessor.Create(property);
object value = propertyAccessor.Get(source);
object targetValue = propertyAccessor.Get(target);
value = GetLatestVersion(targetValue, value);
propertyAccessor.Set(target, value);
}
}
public static TOut TransposeExact <TIn, TOut>(this TIn input)
{
Type inType = typeof(TIn);
Type outType = typeof(TOut);
TOut returnValue = Activator.CreateInstance <TOut>();
foreach (var property in inType.GetProperties())
{
var outProperty = outType.GetProperty(property.Name);
var value = property.GetValue(input, null);
if (property.PropertyType.Name.Contains("Collection") || property.PropertyType.Name.Contains("List"))
{
var collectionEntryType = property.PropertyType.GetGenericArguments().Single();
if (!collectionEntryType.IsValueType && collectionEntryType != typeof(string))
{
object collection = PropertyAccessor.Create(property).Get(input);
object instance = Activator.CreateInstance(outProperty.PropertyType);
IList instanceAsList = (IList)instance;
foreach (object c in ((IList)collection))
{
object outc = InvokeTransposeExact(c, c.GetType(), outProperty.PropertyType.GetGenericArguments().Single());
instanceAsList.Add(outc);
}
PropertyAccessor.Create(outProperty).Set(returnValue, instance);
continue;
}
PropertyAccessor.Create(outProperty).Set(returnValue, value);
continue;
}
if (!property.PropertyType.IsValueType && property.PropertyType != typeof(string))
{
value = InvokeTransposeExact(PropertyAccessor.Create(property).Get(input), property.PropertyType,
outProperty.PropertyType);
}
PropertyAccessor.Create(outProperty).Set(returnValue, value);
}
return(returnValue);
}
public static PropertyAccessor GetAccessor(this PropertyInfo propertyInfo)
{
return(PropertyAccessor.Create(propertyInfo));
}
public static PropertyAccessor GetPropertyAccessor(this Type candidate, string propertyName)
{
return(PropertyAccessor.Create(candidate.GetProperty(propertyName)));
}
public static TOut Transpose <TIn, TOut>(this TIn input)
{
Type outType = typeof(TOut);
Type inType = typeof(TIn);
TOut result;
if (!outType.IsValueType && outType.HasParameterlessConstructor())
{
result = Activator.CreateInstance <TOut>();
}
else
{
result = default(TOut);
}
FieldInfo[] fields = inType.GetFields();
IEnumerable <Tuple <FieldInfo, FieldInfo> > fieldInfos = fields.Select(f => new Tuple <FieldInfo, FieldInfo>(f, outType.GetField(f.Name)));
foreach (Tuple <FieldInfo, FieldInfo> tuple in fieldInfos.Where(t => t.Item2 != null))
{
FieldInfo sourceField = tuple.Item1;
FieldInfo targetField = tuple.Item2;
if (!sourceField.FieldType.IsValueType && sourceField.FieldType != typeof(string) &&
!sourceField.FieldType.GetInterfaces().Contains(typeof(ICloneable)))
{
throw new InvalidOperationException(
string.Format(
"Cannot transpose from field {0} of type {2} because it is of type {1} which is not a value type or ICloneable",
sourceField.Name, sourceField.FieldType.Name, inType.Name));
}
if (!targetField.FieldType.IsValueType && targetField.FieldType != typeof(string) &&
!targetField.FieldType.GetInterfaces().Contains(typeof(ICloneable)))
{
throw new InvalidOperationException(
string.Format(
"Cannot transpose to field {0} of type {2} because it is of type {1} which is not a value type or ICloneable",
targetField.Name, targetField.FieldType.Name, outType.Name));
}
if (sourceField.FieldType != targetField.FieldType)
{
throw new InvalidOperationException(
string.Format(
"Cannot transpose field {0} because in type {1} it is of type {2} and in type {3} it is of type {4}",
sourceField.Name, inType.Name, sourceField.FieldType.Name, outType.Name,
targetField.FieldType.Name));
}
object value = sourceField.GetValue(input);
if (value is ICloneable)
{
value = ((ICloneable)value).Clone();
}
targetField.SetValue(result, value);
}
PropertyInfo[] properties = inType.GetProperties();
IEnumerable <Tuple <PropertyInfo, PropertyInfo> > propertyInfos =
properties.Select(p => new Tuple <PropertyInfo, PropertyInfo>(p, outType.GetProperty(p.Name)));
foreach (Tuple <PropertyInfo, PropertyInfo> tuple in propertyInfos.Where(t => t.Item2 != null && t.Item2.GetSetMethod() != null))
{
PropertyInfo sourceProperty = tuple.Item1;
PropertyInfo targetProperty = tuple.Item2;
if (!sourceProperty.PropertyType.IsValueType && sourceProperty.PropertyType != typeof(string) && !sourceProperty.PropertyType.GetInterfaces().Contains(typeof(ICloneable)))
{
throw new InvalidOperationException(string.Format("Cannot transpose from property {0} of type {2} because it is of type {1} which is not a value type or ICloneable", sourceProperty.Name, sourceProperty.PropertyType.Name, inType.Name));
}
if (!targetProperty.PropertyType.IsValueType && targetProperty.PropertyType != typeof(string) && !targetProperty.PropertyType.GetInterfaces().Contains(typeof(ICloneable)))
{
throw new InvalidOperationException(string.Format("Cannot transpose to property {0} of type {2} because it is of type {1} which is not a value type or ICloneable", targetProperty.Name, targetProperty.PropertyType.Name, outType.Name));
}
if (sourceProperty.PropertyType != targetProperty.PropertyType)
{
throw new InvalidOperationException(
string.Format(
"Cannot transpose property {0} because in type {1} it is of type {2} and in type {3} it is of type {4}",
sourceProperty.Name, inType.Name, sourceProperty.PropertyType.Name, outType.Name,
targetProperty.PropertyType.Name));
}
object value = sourceProperty.GetValue(input);
if (value is ICloneable)
{
value = ((ICloneable)value).Clone();
}
PropertyAccessor.Create(targetProperty).Set(result, value);
}
return(result);
}
public static object GetValue(this PropertyInfo propertyInfo, object obj)
{
return(PropertyAccessor.Create(propertyInfo).Get(obj));
}
public static void SetValue(this PropertyInfo propertyInfo, object obj, object value)
{
PropertyAccessor.Create(propertyInfo).Set(obj, value);
}