/// <summary>
/// Returns an instance of <see cref="Microsoft.ApplicationBlocks.UIProcess.IStatePersistence"/>
/// for the given <see cref="Microsoft.ApplicationBlocks.UIProcess.StatePersistenceProviderSettings"/>.
/// </summary>
/// <param name="providerSettings">The settings for state persistence.</param>
/// <returns>The instance of IStatePersistence. It gets this from the internal cache, if possible.</returns>
public static IStatePersistence Create(StatePersistenceProviderSettings providerSettings)
{
string statePersistenceKey = providerSettings.Type + "," + providerSettings.Assembly;
IStatePersistence spp = (IStatePersistence)_statePersistenceCache[statePersistenceKey];
if (spp == null)
{
try
{
// now create instance based on that type info
spp = (IStatePersistence)GenericFactory.Create(providerSettings);
// pass in parameters to spp init method. this is where spp's find data they need such as
// connection strings, etc.
spp.Init(providerSettings.AdditionalAttributes);
}
catch (Exception e)
{
throw new UIPException(Resource.ResourceManager.FormatMessage(Resource.Exceptions.RES_ExceptionCantCreateStatePersistenceProvider, providerSettings.Type) + UIPException.GetFirstExceptionMessage(e), e);
}
// lock collection
lock (_statePersistenceCache.SyncRoot)
_statePersistenceCache[statePersistenceKey] = spp;
}
// return it
return(spp);
}
/// <summary>
/// Returns an instance of IStatePersistence according to the navigator used.
/// This is an optimization to avoid having to look up type information in the config object each time; instead, it uses the navigator name.
/// </summary>
/// <param name="navigator">The navigator name.</param>
/// <returns>An instance of IStatePersistence of the specified type. It gets this from the internal cache, if possible.</returns>
public static IStatePersistence Create(string navigator)
{
StatePersistenceProviderSettings providerSettings = UIPConfiguration.Config.GetPersistenceProviderSettings(navigator);
if (providerSettings == null)
{
throw new UIPException(Resource.ResourceManager.FormatMessage(Resource.Exceptions.RES_ExceptionStatePersistenceProviderConfigNotFound, navigator));
}
return(Create(providerSettings));
}
private void LoadViewManagementObjects(XmlNode configNode)
{
//Get the configured IViewManager object types
ObjectTypeSettings typedObject;
foreach (XmlNode objectTypeNode in configNode.SelectSingleNode(NodeObjectTypesXPath).ChildNodes)
{
switch (objectTypeNode.LocalName)
{
case NodeILayoutManagerXPath:
typedObject = new ObjectTypeSettings(objectTypeNode);
_iLayoutManagerCollection.Add(typedObject.Name, typedObject);
break;
case NodeIViewManagerXPath:
typedObject = new ObjectTypeSettings(objectTypeNode);
_iViewManagerCollection.Add(typedObject.Name, typedObject);
if (IsDefault(objectTypeNode))
{
_defaultViewManager = typedObject;
}
break;
case NodeStateXPath:
typedObject = new ObjectTypeSettings(objectTypeNode);
_stateCollection.Add(typedObject.Name, typedObject);
if (IsDefault(objectTypeNode))
{
_defaultState = typedObject;
}
break;
case NodeControllerXpath:
typedObject = new ObjectTypeSettings(objectTypeNode);
_controllerCollection.Add(typedObject.Name, typedObject);
break;
case NodePersistProviderXPath:
typedObject = new StatePersistenceProviderSettings(objectTypeNode);
_statePersistenceCollection.Add(typedObject.Name, typedObject);
if (IsDefault(objectTypeNode))
{
_defaultStatePersistence = (StatePersistenceProviderSettings)typedObject;
}
break;
}
}
}
/// <summary>
/// Constructor.
/// </summary>
public UIPConfigSettings( )
{
//Init the hashtables
_iLayoutManagerCollection = new HybridDictionary();
_iViewManagerCollection = new HybridDictionary();
_stateCollection = new HybridDictionary();
_controllerCollection = new HybridDictionary();
_statePersistenceCollection = new HybridDictionary();
_viewByNameCollection = new Hashtable();
_navigatorCollection = new HybridDictionary();
_globalSharedTransitions = new HybridDictionary();
_hostedControlsCollection = new HybridDictionary();
_isStateCacheEnabled = true;
_defaultViewManager = null;
_defaultState = null;
_defaultStatePersistence = null;
_allowBackButton = true;
}
