private ModelStep FirstApplicableStep(ModelInstance instance, ModelStepList steps)
{
if (instance == null)
{
return(steps.FirstOrDefault());
}
else
{
return(steps.Where(s => s.Property.DeclaringType.IsInstanceOfType(instance)).FirstOrDefault());
}
}
private ModelStep FirstApplicableStep(ModelInstance instance, ModelStepList steps)
{
if (instance == null)
return steps.FirstOrDefault();
else
return steps.Where(s => s.Property.DeclaringType.IsInstanceOfType(instance)).FirstOrDefault();
}
/// <summary>
/// Recursively loads a path in the model by walking steps.
/// </summary>
/// <param name="instance"></param>
/// <param name="step"></param>
/// <param name="model"></param>
void GetInstances(ModelInstance instance, ModelStepList steps, HashSet<ModelInstance> model)
{
// Add the instance to the model
model.Add(instance);
// Process each child step
foreach (var step in steps)
{
// Process each instance
foreach (var child in step.GetInstances(instance))
GetInstances(child, step.NextSteps, model);
}
}
/// <summary>
/// Recursively unsubscribes to path changes.
/// </summary>
/// <param name="steps"></param>
static void Unsubscribe(ModelStepList steps)
{
foreach (var step in steps)
{
step.Property.Observers.Remove(step);
Unsubscribe(step.NextSteps);
}
}
/// <summary>
/// Recursively subscribes to path changes.
/// </summary>
/// <param name="steps"></param>
static void Subscribe(ModelStepList steps)
{
foreach (var step in steps)
{
step.Property.Observers.Add(step);
Subscribe(step.NextSteps);
}
}
/// <summary>
/// Recursively builds up a list of instances to serialize.
/// </summary>
/// <param name="instance"></param>
/// <param name="instances"></param>
/// <param name="paths"></param>
/// <param name="path"></param>
static void ProcessInstance(ModelInstance instance, ModelStepList steps, bool includeInResponse, bool inScope, bool forLoad, ServiceResponse response)
{
// Avoid processing cached instances not included in the response
if (instance.IsCached && !includeInResponse)
{
return;
}
ModelInstanceInfo instanceInfo = null;
// Track the instance if the query represents a load request
if (includeInResponse)
{
// Fetch or initialize the dictionary of instances for the type of the current instance
ModelTypeInfo typeInfo = response.GetModelTypeInfo(instance.Type);
// Add the current instance to the dictionary if it is not already there
if (!typeInfo.Instances.TryGetValue(instance.Id, out instanceInfo))
{
typeInfo.Instances[instance.Id] = instanceInfo = new ModelInstanceInfo(instance);
}
// Track in scope instances to limit conditions
if (inScope && !instance.IsCached)
{
response.inScopeInstances.Add(instance);
}
}
// Exit immediately if there are no child steps to process
if (steps == null)
{
return;
}
// Process query steps for the current instance
foreach (var step in steps)
{
// Recursively process child instances
foreach (var childInstance in step.GetInstances(instance))
{
ProcessInstance(childInstance, step.NextSteps, includeInResponse, inScope, forLoad, response);
}
// Mark value lists to be included during serialization
if (step.Property.IsList && includeInResponse)
{
instanceInfo.IncludeList(step.Property);
}
}
// Run all property get rules on the instance
if (inScope)
{
if (forLoad)
{
instance.RunPendingPropertyGetRules(p => p is ModelValueProperty || steps.Any(s => s.Property == p));
}
else
{
instance.RunPendingPropertyGetRules(p => p is ModelValueProperty);
}
}
}
/// <summary>
/// Recursively builds up a list of instances to serialize.
/// </summary>
/// <param name="instance"></param>
/// <param name="instances"></param>
/// <param name="paths"></param>
/// <param name="path"></param>
static void ProcessInstance(ModelInstance instance, ModelStepList steps, bool includeInResponse, bool inScope, bool forLoad, ServiceResponse response)
{
// Avoid processing cached instances not included in the response
if (instance.IsCached && !includeInResponse)
return;
ModelInstanceInfo instanceInfo = null;
// Track the instance if the query represents a load request
if (includeInResponse)
{
// Fetch or initialize the dictionary of instances for the type of the current instance
ModelTypeInfo typeInfo = response.GetModelTypeInfo(instance.Type);
// Add the current instance to the dictionary if it is not already there
if (!typeInfo.Instances.TryGetValue(instance.Id, out instanceInfo))
typeInfo.Instances[instance.Id] = instanceInfo = new ModelInstanceInfo(instance);
// Track in scope instances to limit conditions
if (inScope && !instance.IsCached)
response.inScopeInstances.Add(instance);
}
// Exit immediately if there are no child steps to process
if (steps == null)
return;
// Process query steps for the current instance
foreach (var step in steps)
{
// Recursively process child instances
foreach (var childInstance in step.GetInstances(instance))
ProcessInstance(childInstance, step.NextSteps, includeInResponse, inScope, forLoad, response);
// Mark value lists to be included during serialization
if (step.Property.IsList && includeInResponse)
instanceInfo.IncludeList(step.Property);
}
// Run all property get rules on the instance
if (inScope)
{
if (forLoad)
instance.RunPendingPropertyGetRules(p => p is ModelValueProperty || steps.Any(s => s.Property == p));
else
instance.RunPendingPropertyGetRules(p => p is ModelValueProperty);
}
}
