public void Format(IPaperContext context, IObjectFactory factory, Entity entity)
{
// TODO: deveriamos consultar o catalogo
// var paperCatalog = factory.GetInstance<IPaperCatalog>();
// paperCatalog.FindByType(typeof(TPaper));
var paper = (IPaper)Activator.CreateInstance(paperType);
var paperDescriptor = new PaperDescriptor(paper);
var href = paperDescriptor.PathTemplate.Substring(1);
if (paperArgs != null)
{
foreach (var arg in paperArgs)
{
var value = Change.To <string>(arg);
href = Regex.Replace(href, @"\{[^{}]+\}", value);
}
}
if (Rel?.Any() != true)
{
this.AddRel(RelNames.Link);
}
this.Href = href;
}
public static object Create(this PaperDescriptor paper, IObjectFactory factory, Type type)
{
var creator = paper.Factories.FirstOrDefault(x => type.IsAssignableFrom(x.ReturnType));
var instance = creator?.Invoke(paper.Paper, null)
?? factory.CreateObject(type);
return(instance);
}
public static MethodInfo GetMethod(this PaperDescriptor paper, string methodName)
{
var method = methodName.EqualsIgnoreCase("Index")
? paper.IndexMethod
: paper.Actions.FirstOrDefault(a => a.Name.EqualsIgnoreCase(methodName));
return(method);
}
public Entity RenderEntity(string path, PaperDescriptor paper, Request req, Response res, Result result, object[] pathArgs)
{
var entity = new Entity();
var isList = typeof(IEnumerable).IsAssignableFrom(result.ValueType);
if (isList)
{
var list = (IEnumerable)result.Value;
entity.AddEntities(list, (item, e) =>
{
e.AddClass(ClassNames.Record);
e.AddClass(item.GetType());
e.AddProperties(item);
FormatEntity(path, paper, req, res, e, pathArgs, item);
if (pathArgs.Length > 0)
{
FormatEntity(path, paper, req, res, e, new object[0], item);
}
});
}
else
{
entity.AddClass(ClassNames.Record);
entity.AddClass(result.ValueType);
entity.AddProperties(result.Value);
FormatEntity(path, paper, req, res, entity, pathArgs, result.Value);
if (pathArgs.Length > 0)
{
FormatEntity(path, paper, req, res, entity, new object[0], result.Value);
}
}
FormatEntity(path, paper, req, res, entity, pathArgs);
if (pathArgs.Length > 0)
{
FormatEntity(path, paper, req, res, entity, new object[0]);
}
return(entity);
}
private void FormatEntity(string path, PaperDescriptor paper, Request req, Response res, Entity entity, object[] pathArgs, object graph = null)
{
if (paper.Formatters == null)
{
return;
}
var argCount = pathArgs.Length;
if (graph != null)
{
argCount++;
}
var args = pathArgs.Append(graph).ToArray();
var type = graph?.GetType();
var isArg = (graph != null);
var isList = isArg && typeof(IEnumerable).IsAssignableFrom(graph.GetType());
var isGraph = isArg && !isList;
var formatters =
from f in paper.Formatters
where f.GetParameters().Length == argCount
let lastType = f.GetParameters().LastOrDefault()?.ParameterType
where !isArg ||
(isList && lastType.IsAssignableFrom(type) && typeof(IEnumerable).IsAssignableFrom(lastType)) ||
(isGraph && lastType.IsAssignableFrom(type) && !typeof(IEnumerable).IsAssignableFrom(lastType))
select f;
foreach (var method in formatters)
{
IEnumerable callers;
var argTypes = method.GetParameters().Select(x => x.ParameterType);
var convertedArgs = ConvertArgs(argTypes, args).ToArray();
if (convertedArgs.All(x => x == null))
{
continue;
}
var terms = objectFactory.Invoke(paper.Paper, method, convertedArgs);
if (terms == null)
{
continue;
}
if (terms is Format || terms is PaperLink)
{
callers = new[] { terms };
}
else if (terms is ICollection collection)
{
callers = collection.Cast <object>();
}
else if (terms is IList list)
{
callers = list.Cast <object>();
}
else
{
callers = (IEnumerable)terms;
}
foreach (var caller in callers)
{
objectFactory.Invoke((Delegate)caller, objectFactory, entity);
}
}
}
