/// <summary>
/// Ctor.
/// </summary>
/// <param name="objectType">The type of the object being loaded</param>
/// <param name="loadContext">The LoadContext for the load.</param>
/// <param name="innerException">The original exception which caused the failure.</param>
public LoadRequestFailedException(Type objectType, LoadContext loadContext, Exception innerException)
: base("An error occurred loading an object of type " + objectType.Name + ", see InnerException for details.", innerException)
{
if (objectType == null) throw new ArgumentNullException();
if (loadContext == null) throw new ArgumentNullException();
ObjectType = objectType;
LoadContext = loadContext;
}
/// <summary>
/// Set up all the handlers for this CacheEntry
/// </summary>
/// <param name="objectType"></param>
/// <param name="context"></param>
/// <param name="proxyCallback">callback that should be invoked when update is finished</param>
public CacheEntry(LoadContext context, Type objectType, Action<CacheEntry> proxyCallback)
{
_proxyComplitionCallback = proxyCallback;
LoadContext = context;
ObjectType = objectType;
_stats = new EntryStats(this);
// set up our value loaders.
//
_cacheLoader = new CacheValueLoader(this);
_cacheLoader.Loading += ValueLoader_Loading;
_cacheLoader.ValueAvailable += Cached_ValueAvailable;
_cacheLoader.LoadFailed += CacheLoader_Failed;
_liveLoader = new LiveValueLoader(this);
_liveLoader.Loading += ValueLoader_Loading;
_liveLoader.ValueAvailable += Live_ValueAvailable;
_liveLoader.LoadFailed += LiveValueLoader_Failed;
NextCompletedAction = new UpdateCompletionHandler(this);
}
/// <summary>
/// protected ctor.
/// </summary>
/// <param name="loadContext"></param>
protected LoadRequest(LoadContext loadContext)
{
this.LoadContext = loadContext;
}
/// <summary>
/// Updates the live value from an inentional DataManager.Save operation.
/// </summary>
/// <param name="instance"></param>
/// <param name="loadContext"></param>
internal void UpdateValue(object instance, LoadContext loadContext)
{
UpdateExpiration(DateTime.Now, instance as ICachedItem);
LoadContext = loadContext;
if (_valueReference != null && _valueReference.IsAlive)
{
UpdateFrom(null, instance);
}
else
{
ValueInternal = instance;
}
}
internal static string BuildUniqueName(Type objectType, LoadContext context)
{
return string.Format("{0}_{1}", objectType.Name, context.UniqueKey);
}
public CacheEntry(LoadContext context, Type objectType, Type loaderObjectType, Action<CacheEntry> proxyCallback)
: this(context, objectType, proxyCallback)
{
LoaderObjectType = loaderObjectType;
}
/// <summary>
/// Create a WebLoadRequest
/// </summary>
/// <param name="loadContext"></param>
/// <param name="uri">The URI to request</param>
/// <param name="method">The method to request - GET or POST</param>
/// <param name="data">The data for a POST request</param>
public WebLoadRequest(LoadContext loadContext, Uri uri, string method, string data)
: this(loadContext, uri)
{
Method = method;
Data = data;
}
/// <summary>
/// Create a WebLoadRequest
/// </summary>
/// <param name="loadContext"></param>
/// <param name="uri"></param>
public WebLoadRequest(LoadContext loadContext, Uri uri)
: base(loadContext)
{
Uri = uri;
Method = "GET";
}