/// <summary>
/// Adds the function handler to the service. All methods defined as MSB function via <see cref="MsbFunctionAttribute"/> will be added as <see cref="Function"/>s.
/// </summary>
/// <param name="functionHandler">Function handler that should be added.</param>
public void AddFunctionHandler(AbstractFunctionHandler functionHandler)
{
if (this.registeredFunctionHandlerAndRelatedFunctions.ContainsKey(functionHandler))
{
Log.Info($"Nothing to do, FunctionHandler '{functionHandler.GetType().FullName}' already registered to Service '{this.Uuid}'");
}
else
{
List <Function> addedFunctions = new List <Function>();
foreach (var functionHandlerMethod in functionHandler.GetType().GetRuntimeMethods())
{
if (!functionHandlerMethod.IsPublic || functionHandlerMethod.DeclaringType == typeof(object))
{
continue;
}
Function function = new Function(functionHandler, functionHandlerMethod);
this.AddFunction(function);
addedFunctions.Add(function);
}
this.registeredFunctionHandlerAndRelatedFunctions.Add(functionHandler, addedFunctions);
Log.Info($"FunctionHandler '{functionHandler.GetType().FullName}' registered to Service '{this.Uuid}'");
}
}
private string GetFunctionIdFromHandler(AbstractFunctionHandler functionhandler, MethodInfo methodInfo)
{
var functionId = string.Empty;
// Process path of IFunctionHandler
var functionHandlerId = string.Empty;
if (functionhandler.GetType().GetTypeInfo().GetCustomAttributes(typeof(MsbFunctionHandlerAttribute), true).FirstOrDefault() is MsbFunctionHandlerAttribute functionHandlerAttribute)
{
functionHandlerId = functionHandlerAttribute.Id;
if (functionHandlerId.Equals(string.Empty))
{
functionHandlerId = functionhandler.GetType().Name;
Log.Warn("Id of MsbFunctionHandlerAttribute is not set. Name of type is used as id.");
}
}
else
{
functionHandlerId += functionhandler.GetType().Name;
}
functionId += functionHandlerId;
if (!functionId.EndsWith("/") && !functionId.StartsWith("/"))
{
functionId = functionId + "/";
}
functionId += this.GetFunctionIdFromMethodInfo(methodInfo);
return(functionId);
}
/// <summary>
/// Initializes a new instance of the <see cref="Function"/> class.
/// </summary>
/// <param name="functionHandler">The <see cref="AbstractFunctionHandler"/> that contains the method.</param>
/// <param name="methodInfo">The info about the method.</param>
public Function(AbstractFunctionHandler functionHandler, MethodInfo methodInfo)
{
if (this.IsValidMsbMethodDefintion(methodInfo))
{
var id = this.GetFunctionIdFromHandler(functionHandler, methodInfo);
var name = this.Name = this.GetFunctionNameFromMethodInfo(methodInfo);
var description = this.GetFunctionDescriptionFromMethodInfo(methodInfo);
this.Init(id, name, description, methodInfo, functionHandler);
}
}
/// <summary>
/// Removes the function handler to the service. All MSB function that belong to this function handler will be removed.
/// </summary>
/// <param name="functionHandler">The function handler.</param>
public void RemoveFunctionHandler(AbstractFunctionHandler functionHandler)
{
if (this.registeredFunctionHandlerAndRelatedFunctions.ContainsKey(functionHandler))
{
List <Function> addedFunctions = this.registeredFunctionHandlerAndRelatedFunctions[functionHandler];
foreach (var function in addedFunctions)
{
this.RemoveFunction(function);
}
this.registeredFunctionHandlerAndRelatedFunctions.Remove(functionHandler);
Log.Info($"FunctionHandler '{functionHandler.GetType().FullName}' removed from Service '{this.Uuid}'");
}
else
{
Log.Info($"Nothing to do, FunctionHandler '{functionHandler.GetType().FullName}' not registered to Service '{this.Uuid}'");
}
}
