/// <summary>Determines whether the Id of this entity is equal to the Id of the other entity.</summary>
/// <returns>True if the two entities have the same Id.</returns>
/// <remarks>See <see cref="M:IdentityEquals(BplEntity,object"/> for an explanation of the Id comparison rules.</remarks>
public static bool IdentityEquals(this BplContextNode entity, BplContextNode otherEntity) {
if (otherEntity == null) return entity == null;
if (otherEntity.IsA<BplEntity>()) {
return entity.IdentityEquals(((BplEntity)otherEntity).Id);
} else {
var idProperty = entity.Class.IdentityProperty;
if (idProperty != null) {
return IdentityEquals(entity, (BplIdentity)idProperty.GetValue(entity));
}
}
return IdentityEquals(entity, BplIdentity.Empty);
}
// attaches a node to the given context
private void _attachToContext(BplContextNode node, BplContext context) {
// check that the node can and needs to be attached to the context
// assumptions: node and context are not null and node.Context != context
if (node.Context != null) {
_verifyContextCompatibility(node.Context, context);
return;
}
if (context.IsA<BplGlobalContext>() && !node.IsA<BplTaxonomy>()) {
return;
}
// attach node to context, and index/seal it as needed
context.AttachNode(node);
// recursively attach the node's children
foreach (var child in node.Children.Where(child => child.Context != context)) {
_attachToContext(child, context);
}
// recursively attach the node's target associations
if (node.HasTargets) {
foreach (var target in node.Targets.Where(target => target.Context != context)) {
_attachToContext(target, context);
}
}
// recursively attach the node's source associations
if (node.HasSources) {
foreach (var source in node.Sources.Where(source => BplContext.GetOwner(source) != context)) {
if (source.IsA<BplContext>()) {
_verifyContextCompatibility((BplContext)source, context);
} else {
_attachToContext((BplContextNode)source, context);
}
}
}
}
private static BplContextNode _unwrapMessage(BplContextNode node) {
if (node.IsA<OscarRequestWrapper>()) {
return ((OscarRequestWrapper)node).Input;
} else if (node.IsA<OscarResponseWrapper>()) {
return ((OscarResponseWrapper)node).Output;
} else if (node.IsA<OscarFailureWrapper>()) {
return ((OscarFailureWrapper)node).Error;
}
return node;
}
