public static ODocument ToDocument <T>(T genericObject)
{
ODocument document = new ODocument();
Type genericObjectType = genericObject.GetType();
// TODO: recursive mapping of nested/embedded objects
foreach (PropertyInfo propertyInfo in genericObjectType.GetProperties(BindingFlags.Public | BindingFlags.Instance))
{
string propertyName = propertyInfo.Name;
// serialize following properties into dedicated fields in ODocument
if (propertyName.Equals("ORID"))
{
document.ORID = (ORID)propertyInfo.GetValue(genericObject, null);
continue;
}
else if (propertyName.Equals("OVersion"))
{
document.OVersion = (int)propertyInfo.GetValue(genericObject, null);
continue;
}
else if (propertyName.Equals("OClassId"))
{
document.OClassId = (short)propertyInfo.GetValue(genericObject, null);
continue;
}
else if (propertyName.Equals("OClassName"))
{
document.OClassName = (string)propertyInfo.GetValue(genericObject, null);
continue;
}
bool isSerializable = true;
object[] oProperties = propertyInfo.GetCustomAttributes(typeof(OProperty), true);
if (oProperties.Any())
{
OProperty oProperty = oProperties.First() as OProperty;
if (oProperty != null)
{
propertyName = oProperty.Alias;
isSerializable = oProperty.Serializable;
}
}
if (isSerializable)
{
document.SetField(propertyName, propertyInfo.GetValue(genericObject, null));
}
}
return(document);
}
private T ToObject <T>(T genericObject, string path) where T : class, new()
{
Type genericObjectType = genericObject.GetType();
if (genericObjectType.Name.Equals("ODocument") ||
genericObjectType.Name.Equals("OVertex") ||
genericObjectType.Name.Equals("OEdge"))
{
foreach (KeyValuePair <string, object> item in this)
{
(genericObject as ODocument).SetField(item.Key, item.Value);
}
}
else
{
foreach (PropertyInfo propertyInfo in genericObjectType.GetProperties(BindingFlags.Public | BindingFlags.Instance))
{
string propertyName = propertyInfo.Name;
// serialize orient specific fields into dedicated properties
if (propertyName.Equals("ORID"))
{
propertyInfo.SetValue(genericObject, this.ORID, null);
continue;
}
else if (propertyName.Equals("OVersion"))
{
propertyInfo.SetValue(genericObject, this.OVersion, null);
continue;
}
else if (propertyName.Equals("OClassId"))
{
propertyInfo.SetValue(genericObject, this.OClassId, null);
continue;
}
else if (propertyName.Equals("OClassName"))
{
propertyInfo.SetValue(genericObject, this.OClassName, null);
continue;
}
object[] oProperties = propertyInfo.GetCustomAttributes(typeof(OProperty), true);
if (oProperties.Any())
{
OProperty oProperty = oProperties.First() as OProperty;
if (oProperty != null)
{
propertyName = oProperty.Alias;
}
}
string fieldPath = path + (path != "" ? "." : "") + propertyName;
if ((propertyInfo.PropertyType.IsArray || propertyInfo.PropertyType.IsGenericType))
{
if (this.HasField(fieldPath))
{
object propertyValue = this.GetField <object>(fieldPath);
IList collection = (IList)propertyValue;
if (collection.Count > 0)
{
// create instance of property type
object collectionInstance = Activator.CreateInstance(propertyInfo.PropertyType, collection.Count);
for (int i = 0; i < collection.Count; i++)
{
// collection is simple array
if (propertyInfo.PropertyType.IsArray)
{
((object[])collectionInstance)[i] = collection[i];
}
// collection is generic
else if (propertyInfo.PropertyType.IsGenericType && (propertyValue is IEnumerable))
{
Type elementType = collection[i].GetType();
// generic collection consists of basic types or ORIDs
if (elementType.IsPrimitive ||
(elementType == typeof(string)) ||
(elementType == typeof(DateTime)) ||
(elementType == typeof(decimal)) ||
(elementType == typeof(ORID)))
{
((IList)collectionInstance).Add(collection[i]);
}
// generic collection consists of generic type which should be parsed
else
{
// create instance object based on first element of generic collection
object instance = Activator.CreateInstance(propertyInfo.PropertyType.GetGenericArguments().First(), null);
((IList)collectionInstance).Add(ToObject(instance, fieldPath));
}
}
else
{
object v = Activator.CreateInstance(collection[i].GetType(), collection[i]);
((IList)collectionInstance).Add(v);
}
}
propertyInfo.SetValue(genericObject, collectionInstance, null);
}
}
}
// property is class except the string or ORID type since string and ORID values are parsed differently
else if (propertyInfo.PropertyType.IsClass &&
(propertyInfo.PropertyType.Name != "String") &&
(propertyInfo.PropertyType.Name != "ORID"))
{
// create object instance of embedded class
object instance = Activator.CreateInstance(propertyInfo.PropertyType);
object o = ToObject(instance, fieldPath);
propertyInfo.SetValue(genericObject, o, null);
}
// property is basic type
else
{
if (this.HasField(fieldPath))
{
object propertyValue = this.GetField <object>(fieldPath);
propertyInfo.SetValue(genericObject, propertyValue, null);
}
}
}
}
return(genericObject);
}
