protected void BuildSetterCommands(Object entity, IObjRef[] newORIs, RelationMember member, IReader reader)
{
if (!member.IsToMany)
{
if (newORIs.Length == 0)
{
return;
}
else if (newORIs.Length == 1)
{
IObjectFuture objectFuture = new ObjRefFuture(newORIs[0]);
IObjectCommand command = CommandBuilder.Build(reader.CommandTypeRegistry, objectFuture, entity, member);
reader.AddObjectCommand(command);
}
else
{
throw new ArgumentException("Multiple values for to-one relation");
}
}
else
{
Object coll = ListUtil.CreateCollectionOfType(member.RealType, newORIs.Length);
MethodInfo addMethod = coll.GetType().GetMethod("Add");
Object[] parameters = new Object[1];
bool useObjectFuture = false;
ICommandBuilder commandBuilder = CommandBuilder;
ICommandTypeRegistry commandTypeRegistry = reader.CommandTypeRegistry;
foreach (IObjRef ori in newORIs)
{
if (!(ori is IDirectObjRef))
{
IObjectFuture objectFuture = new ObjRefFuture(ori);;
IObjectCommand command = commandBuilder.Build(commandTypeRegistry, objectFuture, coll, addMethod);
reader.AddObjectCommand(command);
useObjectFuture = true;
continue;
}
Object item = ((IDirectObjRef)ori).Direct;
if (useObjectFuture)
{
IObjectCommand command = commandBuilder.Build(commandTypeRegistry, null, coll, addMethod, item);
reader.AddObjectCommand(command);
}
else
{
parameters[0] = item;
addMethod.Invoke(coll, parameters);
}
}
}
}
public virtual Object ReadObject(Type returnType, Type objType, int id, IReader reader)
{
Object obj = Activator.CreateInstance(objType);
if (id > 0)
{
reader.PutObjectWithId(obj, id);
}
reader.NextTag();
ITypeInfoItem[] members = reader.GetMembersOfType(objType);
int index = 0;
String valueAttribute = XmlDictionary.ValueAttribute;
String primitiveElement = XmlDictionary.PrimitiveElement;
ICommandBuilder commandBuilder = CommandBuilder;
ICommandTypeRegistry commandTypeRegistry = reader.CommandTypeRegistry;
IConversionHelper conversionHelper = ConversionHelper;
while (reader.IsStartTag())
{
ITypeInfoItem member = members[index++];
Object memberValue;
if (primitiveElement.Equals(reader.GetElementName()))
{
String value = reader.GetAttributeValue(valueAttribute);
memberValue = conversionHelper.ConvertValueToType(member.RealType, value);
reader.MoveOverElementEnd();
}
else
{
memberValue = reader.ReadObject(member.RealType);
}
if (memberValue is IObjectFuture)
{
IObjectFuture objectFuture = (IObjectFuture)memberValue;
IObjectCommand command = commandBuilder.Build(commandTypeRegistry, objectFuture, obj, member);
reader.AddObjectCommand(command);
}
else
{
member.SetValue(obj, memberValue);
}
}
return(obj);
}
public virtual Object ReadObject(Type returnType, String elementName, int id, IReader reader)
{
if (!XmlDictionary.ArrayElement.Equals(elementName))
{
throw new Exception("Element '" + elementName + "' not supported");
}
int length = Int32.Parse(reader.GetAttributeValue(XmlDictionary.SizeAttribute));
Type componentType = ClassElementHandler.ReadFromAttribute(reader);
Array targetArray;
if (!reader.IsEmptyElement())
{
reader.NextTag();
}
if ("values".Equals(reader.GetElementName()))
{
String listOfValuesString = reader.GetAttributeValue("v");
if (typeof(char).Equals(componentType) || typeof(byte).Equals(componentType) || typeof(sbyte).Equals(componentType) ||
typeof(bool).Equals(componentType))
{
targetArray = (Array)ConversionHelper.ConvertValueToType(componentType.MakeArrayType(), listOfValuesString, EncodingInformation.SOURCE_BASE64 | EncodingInformation.TARGET_PLAIN);
reader.PutObjectWithId(targetArray, id);
}
else
{
targetArray = Array.CreateInstance(componentType, length);
reader.PutObjectWithId(targetArray, id);
String[] items = splitPattern.Split(listOfValuesString);
for (int a = 0, size = items.Length; a < size; a++)
{
String item = items[a];
if (item == null || item.Length == 0)
{
continue;
}
Object convertedValue = ConversionHelper.ConvertValueToType(componentType, items[a]);
targetArray.SetValue(convertedValue, a);
}
}
reader.MoveOverElementEnd();
}
else
{
if (returnType.IsGenericType)
{
componentType = returnType.GetGenericArguments()[0];
}
targetArray = Array.CreateInstance(componentType, length);
reader.PutObjectWithId(targetArray, id);
ICommandBuilder commandBuilder = CommandBuilder;
ICommandTypeRegistry commandTypeRegistry = reader.CommandTypeRegistry;
for (int index = 0; index < length; index++)
{
Object item = reader.ReadObject(componentType);
if (item is IObjectFuture)
{
IObjectFuture objectFuture = (IObjectFuture)item;
IObjectCommand command = commandBuilder.Build(commandTypeRegistry, objectFuture, targetArray, index);
reader.AddObjectCommand(command);
}
else
{
targetArray.SetValue(item, index);
}
}
}
return(targetArray);
}
public virtual Object ReadObject(Type returnType, String elementName, int id, IReader reader)
{
if (!XmlDictionary.SetElement.Equals(elementName) && !XmlDictionary.ListElement.Equals(elementName))
{
throw new Exception("Element '" + elementName + "' not supported");
}
String lengthValue = reader.GetAttributeValue(XmlDictionary.SizeAttribute);
int length = lengthValue != null && lengthValue.Length > 0 ? Int32.Parse(lengthValue) : 0;
// Do not remove although in Java it is not necessary to extract the generic type information of a collection.
// This code is important for environments like C#
Type componentType = ClassElementHandler.ReadFromAttribute(reader);
if (returnType.IsGenericType)
{
componentType = returnType.GetGenericArguments()[0];
}
MethodInfo addMethod = null;
Object[] parameters = new Object[1];
IEnumerable coll;
if (XmlDictionary.SetElement.Equals(elementName))
{
Type setType = typeof(HashSet <>).MakeGenericType(componentType);
coll = (IEnumerable)Activator.CreateInstance(setType);
addMethod = setType.GetMethod("Add");
}
else
{
Type listType = typeof(List <>).MakeGenericType(componentType);
coll = (IEnumerable)(length > 0 ? Activator.CreateInstance(listType, length) : Activator.CreateInstance(listType));
addMethod = listType.GetMethod("Add");
}
reader.PutObjectWithId(coll, id);
reader.NextTag();
bool useObjectFuture = false;
ICommandBuilder commandBuilder = CommandBuilder;
ICommandTypeRegistry commandTypeRegistry = reader.CommandTypeRegistry;
while (reader.IsStartTag())
{
Object item = reader.ReadObject(componentType);
if (item is IObjectFuture)
{
IObjectFuture objectFuture = (IObjectFuture)item;
IObjectCommand command = commandBuilder.Build(commandTypeRegistry, objectFuture, coll, addMethod);
reader.AddObjectCommand(command);
useObjectFuture = true;
}
else if (useObjectFuture)
{
IObjectCommand command = commandBuilder.Build(commandTypeRegistry, null, coll, addMethod, item);
reader.AddObjectCommand(command);
}
else
{
parameters[0] = item;
addMethod.Invoke(coll, parameters);
}
}
return(coll);
}
protected void ApplyRelationUpdateItems(IObjRefContainer entity, IRelationUpdateItem[] ruis, bool isUpdate, IEntityMetaData metadata, IReader reader)
{
List <Object> toPrefetch = new List <Object>();
RelationMember[] relationMembers = metadata.RelationMembers;
foreach (IRelationUpdateItem rui in ruis)
{
String memberName = rui.MemberName;
int relationIndex = metadata.GetIndexByRelationName(memberName);
if (ValueHolderState.INIT == entity.Get__State(relationIndex))
{
throw new Exception("ValueHolder already initialized for property '" + memberName + "'");
}
IObjRef[] existingORIs = entity.Get__ObjRefs(relationIndex);
IObjRef[] addedORIs = rui.AddedORIs;
IObjRef[] removedORIs = rui.RemovedORIs;
IObjRef[] newORIs;
if (existingORIs.Length == 0)
{
if (removedORIs != null && addedORIs.Length > 0)
{
throw new ArgumentException("Removing from empty member");
}
newORIs = addedORIs != null && addedORIs.Length > 0 ? addedORIs : ObjRef.EMPTY_ARRAY;
}
else
{
// Set to efficiently remove entries
LinkedHashSet <IObjRef> existingORIsSet = new LinkedHashSet <IObjRef>(existingORIs);
if (removedORIs != null && removedORIs.Length > 0)
{
foreach (IObjRef removedORI in removedORIs)
{
if (!existingORIsSet.Remove(removedORI))
{
throw OptimisticLockUtil.ThrowModified(OriHelper.EntityToObjRef(entity), null, entity);
}
}
}
if (addedORIs != null && addedORIs.Length > 0)
{
foreach (IObjRef addedORI in addedORIs)
{
if (!existingORIsSet.Add(addedORI))
{
throw OptimisticLockUtil.ThrowModified(OriHelper.EntityToObjRef(entity), null, entity);
}
}
}
if (existingORIsSet.Count == 0)
{
newORIs = ObjRef.EMPTY_ARRAY;
}
else
{
newORIs = existingORIsSet.ToArray();
}
}
RelationMember member = relationMembers[relationIndex];
if (isUpdate)
{
entity.Set__ObjRefs(relationIndex, newORIs);
if (!entity.Is__Initialized(relationIndex))
{
DirectValueHolderRef dvhr = new DirectValueHolderRef(entity, member);
toPrefetch.Add(dvhr);
}
}
else
{
BuildSetterCommands(entity, newORIs, member, reader);
}
}
if (toPrefetch.Count > 0)
{
IObjectFuture objectFuture = new PrefetchFuture(toPrefetch);
IObjectCommand command = CommandBuilder.Build(reader.CommandTypeRegistry, objectFuture, null);
reader.AddObjectCommand(command);
}
}
