public IdentifierCache SplitCache(ObjectNode node)
{
var result = new IdentifierCache();
var path = node.Path;
var values = node.IdentifierCache.Cache.Values;
foreach (var nodes in values)
{
for (int i = nodes.Count - 1; i >= 0; i--)
{
if (nodes[i].Path.IndexOf(path) == 0)
{
result.AddNodeToCache(nodes[i]);
nodes.RemoveAt(i);
}
}
}
return(this);
}
public ObjectNode(IType type,
ObjectNode parent, string subpath,
IEnvironment environment,
object initialSnapshot,
Func <object, IStateTreeNode, object> createNewInstance,
Action <INode, object, IStateTreeNode> finalizeNewInstance = null)
{
NodeId = ++NextNodeId;
Type = type;
//_initialSnapshot = initialSnapshot;
//_createNewInstance = createNewInstance;
//_finalizeNewInstance = finalizeNewInstance;
State = NodeLifeCycle.INITIALIZING;
SubpathAtom = new Atom("path");
Subpath = subpath;
EscapedSubpath = subpath.EscapeJsonPath();
Parent = parent;
Environment = environment;
_IsRunningAction = false;
IsProtectionEnabled = true;
AutoUnbox = true;
PreBoot();
if (type is IObjectType objectType)
{
IdentifierAttribute = objectType.IdentifierAttribute;
// identifier can not be changed during lifecycle of a node
// so we safely can read it from initial snapshot
if (!string.IsNullOrWhiteSpace(IdentifierAttribute))
{
Identifier = Convert.ToString(StateTreeUtils.GetPropertyValue(initialSnapshot, IdentifierAttribute));
}
}
if (parent == null)
{
IdentifierCache = new IdentifierCache();
}
var childNodes = type.InitializeChildNodes(this, initialSnapshot);
if (parent == null)
{
IdentifierCache.AddNodeToCache(this);
}
else
{
parent.Root.IdentifierCache.AddNodeToCache(this);
}
IStateTreeNode meta = new StateTreeNode(this);
StoredValue = createNewInstance(childNodes, meta);
PostBoot();
PreCompute();
bool sawException = true;
try
{
_IsRunningAction = true;
finalizeNewInstance?.Invoke(this, childNodes, meta);
_IsRunningAction = false;
FireHook(Hook.AfterCreate);
State = NodeLifeCycle.CREATED;
sawException = false;
}
finally
{
if (sawException)
{
// short-cut to die the instance, to avoid the snapshot computed starting to throw...
State = NodeLifeCycle.DEAD;
}
}
// NOTE: we need to touch snapshot, because non-observable
// "observableInstanceCreated" field was touched
// _Snapshot.TrackAndCompute();
if (IsRoot)
{
AddSnapshotReaction();
}
FinalizeCreation();
// _childNodes = null;
// _initialSnapshot = null;
// _createNewInstance = null;
// _finalizeNewInstance = null;
}
public ObjectNode(IType type,
ObjectNode parent, string subpath,
IEnvironment environment,
object initialValue, object storedValue,
bool canAttachTreeNode,
Action <INode, object> finalize)
{
NodeId = ++NextNodeId;
Type = type;
StoredValue = storedValue;
_SubPath = ObservableValue <string> .From();
Subpath = subpath;
_Parent = ObservableValue <ObjectNode> .From();
Parent = parent;
Environment = environment;
_IsRunningAction = false;
IsProtectionEnabled = true;
AutoUnbox = true;
State = NodeLifeCycle.INITIALIZING;
PreBoot();
PreCompute();
if (parent == null)
{
IdentifierCache = new IdentifierCache();
}
if (canAttachTreeNode)
{
NodeCache.Add(StoredValue, new StateTreeNode(this));
}
bool sawException = true;
try
{
_IsRunningAction = true;
finalize?.Invoke(this, initialValue);
_IsRunningAction = false;
if (parent != null)
{
parent.Root.IdentifierCache?.AddNodeToCache(this);
}
else
{
IdentifierCache?.AddNodeToCache(this);
}
FireHook("afterCreate");
State = NodeLifeCycle.CREATED;
sawException = false;
}
finally
{
if (sawException)
{
// short-cut to die the instance, to avoid the snapshot computed starting to throw...
State = NodeLifeCycle.DEAD;
}
}
var disposer = Reactions.Reaction <object>((r) => Snapshot, (snapshot, r) => EmitSnapshot(snapshot));
AddDisposer(() => disposer.Dispose());
}
