public static MethodSlot[] FindInvalidMethods(Type projectionType, params MethodCollection[] collections)
{
var methodNames = collections.SelectMany(x => x.MethodNames).Distinct().ToArray();
var invalidMethods = projectionType.GetMethods(BindingFlags.Public | BindingFlags.Instance)
.Where(x => !x.HasAttribute <MartenIgnoreAttribute>())
.Where(x => x.DeclaringType.Assembly != typeof(MethodCollection).Assembly)
.Where(x => x.DeclaringType != typeof(object))
.Where(x => !methodNames.Contains(x.Name))
.Select(x => MethodSlot.InvalidMethodName(x, methodNames))
.ToList();
foreach (var collection in collections)
{
// We won't validate the methods that come through inline Lambdas
foreach (var method in collection.Methods)
{
method.Validate(collection);
collection.validateMethod(method); // hook for unusual rules
}
invalidMethods.AddRange(collection.Methods.Where(x => x.Errors.Any()));
}
return(invalidMethods.ToArray());
}
internal override void validateMethod(MethodSlot method)
{
if (!method.Method.GetParameters().Any())
{
method.AddError($"ShouldDelete() requires at least one argument (the event type, the aggregate type, or IQuerySession)");
}
}
internal override void validateMethod(MethodSlot method)
{
if (!method.DeclaredByAggregate && method.Method.GetParameters().All(x => x.ParameterType != AggregateType))
{
method.AddError($"Aggregate type '{AggregateType.FullNameInCode()}' is required as a parameter");
}
}
public void AddLambda <T>(T lambda, Type eventType)
{
if (eventType == null)
{
throw new ArgumentNullException(nameof(eventType));
}
if (eventType.IsGenericType && eventType.Closes(typeof(IEvent <>)))
{
eventType = eventType.GetGenericArguments().Single();
}
var name = LambdaName + (++_lambdaNumber).ToString();
var method = lambda.GetType().GetMethod("Invoke");
var setter = new Setter(typeof(T), name)
{
InitialValue = lambda
};
var slot = new MethodSlot(setter, method, eventType);
Methods.Add(slot);
if (method.IsAsync())
{
IsAsync = true;
}
}
public static MethodSlot InvalidMethodName(MethodInfo methodInfo, string[] methodNames)
{
var slot = new MethodSlot(methodInfo, null);
slot._errors.Add($"Unrecognized method name '{methodInfo.Name}'. Either mark with [MartenIgnore] or use one of {methodNames.Select(x => $"'{x}'").Join(", ")}");
return(slot);
}
public ApplyMethodCall(MethodSlot slot) : base(slot.HandlerType, (MethodInfo)slot.Method)
{
EventType = slot.EventType;
if (slot.Setter != null)
{
Target = slot.Setter;
}
}
public MaybeDeleteFrame(MethodSlot slot) : base(slot.Method.As <MethodInfo>().IsAsync())
{
EventType = slot.EventType;
Maybe = new MethodCall(slot.HandlerType, (MethodInfo)slot.Method)
{
Target = slot.Setter
};
}
public ShouldDeleteFrame(MethodSlot slot) : base(slot.Method.As <MethodInfo>().IsAsync())
{
EventType = slot.EventType;
Maybe = new MethodCall(slot.HandlerType, (MethodInfo)slot.Method)
{
Target = slot.Setter
};
Maybe.ReturnVariable.OverrideName(Maybe.ReturnVariable.Usage + ++_number);
}
public CreateAggregateFrame(MethodSlot slot) : base(slot.HandlerType, (MethodInfo)slot.Method)
{
ReturnAction = ReturnAction.Return;
EventType = slot.EventType;
if (slot.Setter != null)
{
Target = slot.Setter;
}
}
public MaybeDeleteFrame(Type aggregateType, Type identityType, MethodSlot slot) : base(slot.Method.As <MethodInfo>().IsAsync())
{
_aggregateType = aggregateType;
_identityType = identityType;
EventType = slot.EventType;
Maybe = new MethodCall(slot.HandlerType, (MethodInfo)slot.Method)
{
Target = slot.Setter
};
}
private void addMethodSlot(MethodInfo method, bool declaredByAggregate)
{
if (method.IsPublic)
{
var slot = new MethodSlot(method, AggregateType)
{
HandlerType = declaredByAggregate ? AggregateType : ProjectionType,
DeclaredByAggregate = declaredByAggregate
};
Methods.Add(slot);
}
else
{
var parameterTypes = new List <Type>();
if (declaredByAggregate)
{
parameterTypes.Add(AggregateType);
}
else
{
parameterTypes.Add(ProjectionType);
}
parameterTypes.AddRange(method.GetParameters().Select(x => x.ParameterType));
var parameters = parameterTypes.Select(Expression.Parameter).ToArray();
Type baseType = null;
if (method.ReturnType == typeof(void))
{
baseType = _actionBaseTypes[parameterTypes.Count];
}
else
{
parameterTypes.Add(method.ReturnType);
baseType = _funcBaseTypes[parameterTypes.Count];
}
var lambdaType = baseType.MakeGenericType(parameterTypes.ToArray());
var loaderType = typeof(LambdaLoader <>).MakeGenericType(lambdaType);
var loader = (ILambdaLoader)Activator.CreateInstance(loaderType);
loader.Add(this, method, AggregateType, parameters);
}
}
public CreateMethodCollection(Type projectionType, Type aggregateType) : base(MethodName, projectionType, aggregateType)
{
_validArgumentTypes.Add(typeof(IQuerySession));
_validReturnTypes.Fill(aggregateType);
_validReturnTypes.Add(typeof(Task <>).MakeGenericType(aggregateType));
var constructors = aggregateType
.GetConstructors()
.Where(x => x.GetParameters().Length == 1);
foreach (var constructor in constructors)
{
var slot = new MethodSlot(constructor, projectionType, aggregateType);
Methods.Add(slot);
}
}
public override IEventHandlingFrame CreateEventTypeHandler(Type aggregateType,
IDocumentMapping aggregateMapping, MethodSlot slot)
{
return(new ApplyMethodCall(slot));
}
public override IEventHandlingFrame CreateEventTypeHandler(Type aggregateType,
IDocumentMapping aggregateMapping, MethodSlot slot)
{
return(new ShouldDeleteFrame(slot));
}
public override IEventHandlingFrame CreateEventTypeHandler(Type aggregateType,
DocumentMapping aggregateMapping, MethodSlot slot)
{
if (slot.Method is ConstructorInfo)
{
return(new AggregateConstructorFrame(slot));
}
return(new CreateAggregateFrame(slot));
}
internal override void validateMethod(MethodSlot method)
{
// Nothing, no special rules
}
public AggregateConstructorFrame(MethodSlot slot)
{
_slot = slot;
_argType = slot.Method.GetParameters().Single().ParameterType;
}
internal abstract void validateMethod(MethodSlot method);
public abstract IEventHandlingFrame CreateEventTypeHandler(Type aggregateType,
IDocumentMapping aggregateMapping, MethodSlot slot);
public override IEventHandlingFrame CreateEventTypeHandler(Type aggregateType,
DocumentMapping aggregateMapping, MethodSlot slot)
{
return(new MaybeDeleteFrame(aggregateType, aggregateMapping.IdType, slot));
}