/// <summary>
/// Returns the only instance of skill factory.
/// </summary>
/// <returns></returns>
public static SkillFactory GetInstance(ITurnContext context,
IConversationStateProvider conversationStateProvider)
{
if (_factory == null)
{
lock (padlock)
{
//
_conversationStateProvider = conversationStateProvider;
//
_factory = _factory ?? new SkillFactory();
// Check, if skill set is empty
if (_skills.Count == 0)
{
var knownSkills = new[] { "greetings", "retorts" }; //, "questions" };
var greetingInstance = Greetings.Instance(context, conversationStateProvider);
var retortsInstance = Retorts.Instance(context, conversationStateProvider);
//var questionsInstance = Questions.Instance(context, conversationStateProvider);
//
_skills.Add("greetings", greetingInstance);
_skills.Add("retorts", retortsInstance);
//_skills.Add("questions", questionsInstance);
}
}
}
return(_factory);
}
/// <summary>
/// Creates new instance of skill.
/// </summary>
/// <param name="context">current dialog context</param>
/// <param name="conversationStateProvider">provider for passing the state from context</param>>
/// <returns>instance of greeting</returns>
public static Greetings Instance(ITurnContext context, IConversationStateProvider conversationStateProvider)
{
if (_instance == null)
{
lock (padlock)
if (_instance == null)
{
_instance = new Greetings(context, conversationStateProvider);
}
}
return(_instance);
}
/// <summary>
/// Returns wanted skill, if there exist one with such a name.
/// </summary>
/// <param name="key">skill's name</param>
/// <param name="context">used context</param>
/// <param name="conversationStateProvider">given conversation provider to access BrainState</param>
/// <returns>wanted skill, if found, null otherwise</returns>
public ISkill GetSkill(string key, ITurnContext context, IConversationStateProvider conversationStateProvider)
{
// if it does exist, read it and return it
if (_skills.TryGetValue(key, out ISkill instance))
{
instance = _skills[key];
}
else
{
// First time - call to init an instance
switch (key)
{
// TODO if would be nice, if this would be classfiles processor on directory - not to type every single skill in factory
case "greetings":
instance = Greetings.Instance(context, conversationStateProvider);
break;
case "retorts":
instance = Retorts.Instance(context, conversationStateProvider);
break;
/*case "questions":
* instance = Questions.Instance(context, conversationStateProvider);
* break;*/
case "unknowns":
instance = Unknowns.Instance(context, conversationStateProvider);
break;
}
// If obtained instance, add it to known skills
if (instance != null)
{
_skills.Add(key, instance);
}
}
return(instance);
}