/// <summary>
/// Gets or creates a tracking configuration for the specified type. Objects of the
/// specified type will be tracked according to the settings that are defined in the
/// configuration object.
/// </summary>
public TrackingConfiguration Configure(Type t)
{
TrackingConfiguration configuration;
if (_typeConfigurations.ContainsKey(t))
{
// if a config for this exact type exists return it
configuration = _typeConfigurations[t];
}
else
{
// todo: we should make a config for each base type recursively, in case at a later point we add config for a base type
// tbd : should configurations delegate work to base classes, rather than copying their config data?
// if a config for this exact type does not exist, copy from base type's config or create a blank one
var baseConfig = FindConfiguration(t);
if (baseConfig != null)
{
configuration = new TrackingConfiguration(baseConfig, t, _logger);
}
else
{
configuration = new TrackingConfiguration(this, t, _logger);
}
_typeConfigurations[t] = configuration;
}
return(configuration);
}
/// <summary>
/// Gets or creates a tracking configuration for the target object.
/// </summary>
public TrackingConfiguration Configure(object target)
{
TrackingConfiguration config;
if (_configurationsDict.TryGetValue(target, out TrackingConfiguration cfg))
{
config = cfg;
}
else
{
config = Configure(target.GetType());
// if the object or the caller want to customize the config for this type, copy the config so they don't mess with the config for the type
if (target is ITrackingAware)
{
config = new TrackingConfiguration(config, target.GetType(), _logger);
// allow the object to adjust the configuration
if (target is ITrackingAware ita)
{
ita.ConfigureTracking(config);
}
}
_configurationsDict.Add(target, config);
}
return(config);
}
public TrackingConfiguration <T> Configure <T>()
{
TrackingConfiguration <T> configuration;
if (_typeConfigurations.ContainsKey(typeof(T)))
{
// if a config for this exact type exists return it
configuration = (TrackingConfiguration <T>)_typeConfigurations[typeof(T)];
}
else
{
// if a config for this exact type does not exist, copy from base type's config or create a blank one
var baseConfig = FindConfiguration(typeof(T));
if (baseConfig != null)
{
configuration = new TrackingConfiguration <T>(baseConfig);
}
else
{
configuration = new TrackingConfiguration <T>(this);
}
_typeConfigurations[typeof(T)] = configuration;
}
return(configuration);
}
public void Track <T>(T target)
{
if (!_configurationsDict.TryGetValue(target, out _))
{
// find a configuration for this type of the nearest base type, or create a new one
ITrackingConfigurationInternal config = Configure <T>();
// if the object or the caller want to customize the config for this type, copy the config so they don't mess with the config for the type
if (target is ITrackingAware <T> )
{
config = new TrackingConfiguration <T>(config);
// allow the object to adjust the configuration
if (target is ITrackingAware <T> ita)
{
ita?.ConfigureTracking((TrackingConfiguration <T>)config);
}
}
// keep track of the object
_trackedObjects.Add(new WeakReference(target));
_configurationsDict.Add(target, config);
// apply any previously stored data
config.Apply(target);
// listen to persist trigger events
config.StartTracking(target);
}
}
// todo: allow caller to configure
public void Track <T>(T target, Action <T> configure = null, bool inheritConfig = true)
{
if (!_configurationsDict.TryGetValue(target, out _))
{
// find a configuration for this type of the nearest base type
// Note: Do not use T as the type. The caller might pass the target as a base type
TrackingConfiguration config = FindConfiguration(target.GetType()) ?? new TrackingConfiguration <T>(this);
// if the object or the caller want to customize the config for this type, copy the config so they don't mess with the config for the type
if (target is ITrackingAware <T> )
{
config = new TrackingConfiguration <T>(config);
// allow the object to adjust the configuration
if (target is ITrackingAware <T> ita)
{
ita?.ConfigureTracking((TrackingConfiguration <T>)config);
}
}
// keep track of the object
_trackedObjects.Add(new WeakReference(target));
_configurationsDict.Add(target, config);
// apply any previously stored data
config.Apply(target);
// listen to persist trigger events
config.StartTracking(target);
}
}
/// <summary>
/// Creates or retrieves the tracking configuration for the speficied object.
/// </summary>
/// <param name="target"></param>
/// <returns></returns>
public TrackingConfiguration Configure(object target)
{
TrackingConfiguration config = FindExistingConfig(target);
if (config == null)
{
_configurations.Add(config = new TrackingConfiguration(target, this));
}
return(config);
}
// this is internal to allow TrackingConfiguration to call it so
// we can avoid the extra lookup (finding the configuration)
internal void Track(object target, TrackingConfiguration config)
{
// apply any previously stored data
config.Apply(target);
// listen for persist requests
config.StartTracking(target);
// add to list of objects to track
_trackedObjects.Add(new WeakReference(target));
}
/// <summary>
/// Gets or creates a configuration object what will control how the target object is going to be tracked (which properties, when to persist, when to apply, validation).
/// For a given target object, always returns the same configuration instance.
/// </summary>
/// <param name="target">The object whose properties your want to track.</param>
/// <returns>The tracking configuration object.</returns>
public TrackingConfiguration Configure(object target)
{
TrackingConfiguration config = FindExistingConfig(target);
if (config == null)
{
config = new TrackingConfiguration(target, this);
var initializer = FindInitializer(target.GetType());
initializer.InitializeConfiguration(config);
_trackedObjects.Add(new WeakReference(target));
_configurationsDict.Add(target, config);
}
return(config);
}
/// <summary>
/// Creates or retrieves the tracking configuration for the speficied object.
/// </summary>
/// <param name="target"></param>
/// <param name="identifier"></param>
/// <returns></returns>
public TrackingConfiguration Configure(object target, string identifier)
{
TrackingConfiguration config = FindExistingConfig(target);
if (config == null)
{
config = new TrackingConfiguration(target, this);
var initializer = FindInitializer(target.GetType());
initializer.InitializeConfiguration(config);
//if the identifier was specified explicitly, it has priority over what the initializer set as the key
if (identifier != null)
{
config.Key = identifier;
}
config.CompleteInitialization();
_trackedObjects.Add(new WeakReference(target));
_configurationsDict.Add(target, config);
}
return(config);
}
/// <summary>
/// Creates a new instance of TrackingOperationEventArgs.
/// </summary>
/// <param name="configuration">The TrackingConfiguration object that initiated the tracking operation.</param>
/// <param name="property">The property that is being persisted or applied to.</param>
/// <param name="value">The value that is being persited or applied.</param>
public TrackingOperationEventArgs(TrackingConfiguration configuration, string property, object value)
{
Configuration = configuration;
Property = property;
Value = value;
}
