/// <summary>
/// Convert object to MetadataModel instance.
/// </summary>
/// <param name="source">Object to convert.</param>
/// <param name="sourceType">The type of source object.</param>
/// <param name="name">Name for result MetadataModel.</param>
/// <returns>Instance of MetadataModel.</returns>
public static MetadataModel ToMetadataModel(this object source, Type sourceType, string name = null)
{
if (source == null)
{
return(MetadataModel.GetEmptyMetadataModel());
}
if (sourceType.Equals(typeof(MetadataModel)))
{
return((source as MetadataModel) ?? MetadataModel.GetEmptyMetadataModel());
}
MetadataModel result = new MetadataModel {
Name = name ?? sourceType.FullName.Replace('.', '_')
};
if (XmlConverter.CanConvert(sourceType))
{
result.IsValueType = true;
try
{
result.Value = XmlConverter.ToString(source);
}
catch
{
result.Value = null;
}
}
else if (source is XmlElement)
{
result.IsValueType = true;
try
{
result.Value = (source as XmlElement).OuterXml;
}
catch
{
result.Value = null;
}
}
else
{
result.IsValueType = false;
if (CanEnumerable(sourceType))
{
if (source != null)
{
foreach (var item in source as IEnumerable)
{
result.AddProperty(item.ToMetadataModel(item.GetType()));
}
}
else
{
Type elementType = null;
if (IsDictionary(sourceType))
{
elementType = typeof(KeyValuePair <,>).MakeGenericType(sourceType.GetGenericArguments());
}
else
{
elementType = sourceType.IsArray ? sourceType.GetElementType() : sourceType.GetGenericArguments()[0];
}
result.AddProperty(((object)null).ToMetadataModel(elementType));
}
}
else
{
foreach (var item in sourceType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => p.CanRead))
{
try
{
object itemValue = source == null ? null : item.GetValue(source, null);
result.AddProperty(itemValue.ToMetadataModel(item.PropertyType, item.Name));
}
catch
{
}
}
}
}
return(result);
}
/// <summary>
/// Gets the property names internal.
/// </summary>
/// <param name="source">The source.</param>
/// <param name="propertyAccess">The property access.</param>
/// <param name="propertyName">Name of the property.</param>
/// <returns>List of properties.</returns>
private static List <KeyValuePair <string, Type> > GetPropertyNamesInternal(Type source, Func <PropertyInfo, bool> propertyAccess, string propertyName = null)
{
List <KeyValuePair <string, Type> > result = new List <KeyValuePair <string, Type> >();
if (source == typeof(void) ||
XmlConverter.CanConvert(source) ||
source == typeof(XmlElement))
{
if (!string.IsNullOrWhiteSpace(propertyName))
{
result.Add(new KeyValuePair <string, Type>(propertyName, source));
}
return(result);
}
else
{
if (CanEnumerable(source))
{
Type elementType = source.IsArray ? source.GetElementType() : source.GetGenericArguments()[0];
result.AddRange(GetPropertyNamesInternal(elementType, propertyAccess, propertyName + "[0]"));
}
else
{
foreach (var item in source.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(propertyAccess))
{
Type type = item.PropertyType;
if (type == source)
{
continue;
}
else if (CanEnumerable(type))
{
Type elementType = type.IsArray ? type.GetElementType() : type.GetGenericArguments()[0];
if (elementType == source)
{
continue;
}
}
string name;
if (string.IsNullOrWhiteSpace(propertyName))
{
name = item.Name;
}
else
{
name = propertyName + "." + item.Name;
}
result.AddRange(GetPropertyNamesInternal(type, propertyAccess, name));
}
}
}
return(result);
}
/// <summary>
/// Convert MetadataModel instance to object.
/// </summary>
/// <param name="source">MetadataModel to convert.</param>
/// <param name="targetType">The type of return object.</param>
/// <returns>The target type object.</returns>
public static object ToObject(this MetadataModel source, Type targetType)
{
if (source.IsNull)
{
return(null);
}
if (targetType.Equals(typeof(MetadataModel)))
{
return(source);
}
if (XmlConverter.CanConvert(targetType))
{
if (source.IsValueType && source.Value != null)
{
return(XmlConverter.ToObject(source.Value, targetType));
}
else
{
return(null);
}
}
else if (targetType.Equals(typeof(XmlElement)))
{
if (source.IsValueType && source.Value != null)
{
try
{
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.LoadXml(source.Value);
return(xmlDocument.DocumentElement);
}
catch
{
return(null);
}
}
else
{
return(null);
}
}
else
{
if (CanEnumerable(targetType))
{
if (IsDictionary(targetType))
{
IDictionary propertyDict = (IDictionary)Activator.CreateInstance(targetType, true);
foreach (var propertyItem in source.Properties)
{
if (!propertyItem.IsNull)
{
try
{
var key = propertyItem[0].ToObject(targetType.GetGenericArguments()[0]);
if (key != null)
{
var value = propertyItem[1].ToObject(targetType.GetGenericArguments()[1]);
propertyDict.Add(key, value);
}
}
catch
{
}
}
}
return(propertyDict.Count > 0 ? propertyDict : (IDictionary)null);
}
else
{
if (targetType.IsArray)
{
Type elementType = targetType.GetElementType();
IList resultTemp = new List <dynamic>();
foreach (var propertyItem in source.Properties)
{
if (!propertyItem.IsNull)
{
try
{
var listItem = propertyItem.ToObject(elementType);
if (listItem != null)
{
resultTemp.Add(listItem);
}
}
catch
{
}
}
}
if (resultTemp.Count > 0)
{
Array result = Array.CreateInstance(elementType, resultTemp.Count);
resultTemp.CopyTo(result, 0);
return(result);
}
else
{
return((IList)null);
}
}
else
{
Type elementType = targetType.GetGenericArguments()[0];
IList result = (IList)Activator.CreateInstance(targetType, true);
foreach (var propertyItem in source.Properties)
{
if (!propertyItem.IsNull)
{
try
{
var listItem = propertyItem.ToObject(elementType);
if (listItem != null)
{
result.Add(listItem);
}
}
catch
{
}
}
}
return(result.Count > 0 ? result : (IList)null);
}
}
}
else
{
object result = null;
try
{
result = Activator.CreateInstance(targetType, true);
}
catch
{
try
{
result = FormatterServices.GetUninitializedObject(targetType);
}
catch
{
}
}
if (result == null)
{
return(result);
}
bool isNullReturn = true;
foreach (var item in targetType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(i => i.CanWrite))
{
try
{
if (source.HasProperty(item.Name))
{
var sourceItem = source.GetProperty(item.Name);
var sourceItemValue = sourceItem.ToObject(item.PropertyType);
item.SetValue(result, sourceItemValue, null);
if (sourceItemValue != null)
{
isNullReturn = false;
}
}
}
catch
{
}
}
return(isNullReturn ? null : result);
}
}
}
