public virtual void AddObject(string name, ISourceValue obj, bool rewrite)
{
Should.NotBeNullOrWhitespace(name, nameof(name));
Should.NotBeNull(obj, nameof(obj));
DynamicResourceObject value;
lock (_objects)
{
if (!_objects.TryGetValue(name, out value))
{
value = new DynamicResourceObject();
_objects[name] = value;
}
}
value.SetValue(obj, name, rewrite);
}
protected ISourceValue GetOrAddDynamicResource([NotNull] string name, bool traceWarn)
{
lock (_objects)
{
DynamicResourceObject value;
if (!_objects.TryGetValue(name, out value))
{
if (traceWarn && Tracer.TraceWarning)
{
Tracer.Warn(BindingExceptionManager.CannotResolveInstanceFormat2, "resource", name, GetType().Name);
}
value = new DynamicResourceObject();
_objects[name] = value;
}
return(value);
}
}
public virtual void AddObject(string name, ISourceValue obj, bool rewrite)
{
Should.NotBeNullOrWhitespace(name, nameof(name));
Should.NotBeNull(obj, nameof(obj));
DynamicResourceObject value;
lock (_objects)
{
if (!_objects.TryGetValue(name, out value))
{
value = new DynamicResourceObject();
_objects[name] = value;
}
}
value.SetValue(obj, name, rewrite);
}
protected ISourceValue GetOrAddDynamicResource([NotNull] string name, bool traceWarn)
{
lock (_objects)
{
DynamicResourceObject value;
if (!_objects.TryGetValue(name, out value))
{
if (traceWarn && Tracer.TraceWarning)
Tracer.Warn(BindingExceptionManager.CannotResolveInstanceFormat2, "resource", name, GetType().Name);
value = new DynamicResourceObject();
_objects[name] = value;
}
return value;
}
}
/// <summary>
/// Adds the specified object.
/// </summary>
public virtual void AddObject(string name, ISourceValue obj, bool rewrite)
{
Should.NotBeNullOrWhitespace(name, "name");
Should.NotBeNull(obj, "obj");
lock (_objects)
{
DynamicResourceObject value;
if (!_objects.TryGetValue(name, out value))
{
value = new DynamicResourceObject();
_objects[name] = value;
}
value.SetValue(obj, name, rewrite);
}
lock (_instanceObjects)
{
for (int i = 0; i < _instanceObjects.Count; i++)
{
var resourceObject = (DynamicResourceObject)_instanceObjects[i].Target;
if (resourceObject == null)
{
_instanceObjects.RemoveAt(i);
--i;
}
else
resourceObject.OnResourceAdded(obj, name);
}
}
}
/// <summary>
/// Gets an instance of <see cref="ISourceValue" /> by the specified name.
/// </summary>
/// <param name="name">The specified name.</param>
/// <param name="context">The specified data context, if any.</param>
/// <param name="throwOnError">
/// true to throw an exception if the type cannot be found; false to return null. Specifying
/// false also suppresses some other exception conditions, but not all of them.
/// </param>
/// <returns>An instance of <see cref="ISourceValue" />.</returns>
public virtual ISourceValue ResolveObject(string name, IDataContext context, bool throwOnError)
{
Should.NotBeNullOrWhitespace(name, "name");
if (context != null && BindingSourceResourceName.Equals(name, StringComparison.Ordinal))
{
object src;
if (context.TryGetData(BindingBuilderConstants.Source, out src))
return new BindingResourceObject(src, true);
object target = null;
IDataBinding binding;
if (context.TryGetData(BindingConstants.Binding, out binding))
{
WeakReference srcWeak;
if (binding.Context.TryGetData(BindingConstants.Source, out srcWeak))
return new BindingResourceObject(srcWeak);
target = binding.TargetAccessor.Source.GetSource(false);
}
if (target == null)
target = context.GetData(BindingBuilderConstants.Target);
if (target != null)
return BindingServiceProvider.ContextManager.GetBindingContext(target);
}
lock (_objects)
{
DynamicResourceObject value;
if (!_objects.TryGetValue(name, out value))
{
var targetResourceObject = GetTargetResourceObject(name, context);
if (targetResourceObject != null)
return targetResourceObject;
if (Tracer.TraceWarning)
Tracer.Warn(BindingExceptionManager.CannotResolveInstanceFormat2, "resource", name, GetType().Name);
value = new DynamicResourceObject();
_objects[name] = value;
}
return value;
}
}
private DynamicResourceObject GetTargetResourceObject(string name, IDataContext context)
{
var target = TryGetTarget(context);
if (target == null)
return null;
string key = ResourcePrefix + name;
var sourceValue = ServiceProvider.AttachedValueProvider.GetValue<DynamicResourceObject>(target, key, false);
if (sourceValue == null)
{
var value = ResolveObjectInternal(target, name, context);
if (value == null)
return null;
sourceValue = new DynamicResourceObject();
sourceValue.SetValue(value, name, true);
ServiceProvider.AttachedValueProvider.SetValue(target, key, sourceValue);
lock (_instanceObjects)
{
if (_instanceObjects.Count > MaxInstanceObject)
{
for (int i = 0; i < _instanceObjects.Count; i++)
{
if (_instanceObjects[i].Target == null)
{
_instanceObjects.RemoveAt(i);
--i;
}
}
}
_instanceObjects.Add(ServiceProvider.WeakReferenceFactory(sourceValue));
}
}
return sourceValue;
}
