Merge pull request #52 from figloalds/master

Adiciona uma  opção para ignorar a ordenação dos elementos ao deserializar xml com o FuncoesXML

DFe.Utils/ExtXmlSerializerFactory.cs

@@ -0,0 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Serialization;
+
+namespace DFe.Utils {
+
+    public abstract class XmlOrderFreeSerializerFactory {
+        // Referência https://stackoverflow.com/a/33508815
+        readonly static XmlAttributeOverrides overrides = new XmlAttributeOverrides();
+        readonly static object locker = new object();
+        readonly static Dictionary<Type, XmlSerializer> serializers = new Dictionary<Type, XmlSerializer>();
+        static HashSet<string> overridesAdded = new HashSet<string>();
+
+        static void AddOverrideAttributes(Type type, XmlAttributeOverrides overrides) {
+
+            if (type == null || type == typeof(object) || type.IsPrimitive || type == typeof(string) || type == typeof(DateTime)) {
+                return;
+            }
+            if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>)) {
+                AddOverrideAttributes(type.GetGenericArguments()[0], overrides);
+                return;
+            }
+            if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(List<>)) {
+                AddOverrideAttributes(type.GetGenericArguments()[0], overrides);
+                return;
+            }
+
+            var mask = BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.Public;
+            foreach (var member in type.GetProperties(mask).Cast<MemberInfo>().Union(type.GetFields(mask))) {
+                var otTag = $"{type.Name}_{member.Name}";
+                if (overridesAdded.Contains(otTag)) {
+                    continue;
+                }
+                XmlAttributes overrideAttr = null;
+                foreach (var attr in member.GetCustomAttributes<XmlElementAttribute>()) {
+                    overrideAttr = overrideAttr ?? new XmlAttributes();
+                    var overrideElt = new XmlElementAttribute(attr.ElementName, attr.Type) { DataType = attr.DataType, ElementName = attr.ElementName, Form = attr.Form, Namespace = attr.Namespace, Type = attr.Type };
+                    if(attr.IsNullable) {
+                        // Isso aqui deve ter uma logica personalizada no setter, colocar ali em cima causa erro
+                        overrideElt.IsNullable = true;
+                    }
+                    overrideAttr.XmlElements.Add(overrideElt);
+                    if(attr.Type != null) {
+                        AddOverrideAttributes(attr.Type, overrides);
+                    }
+                }
+                foreach (var attr in member.GetCustomAttributes<XmlArrayAttribute>()) {
+                    overrideAttr = overrideAttr ?? new XmlAttributes();
+                    overrideAttr.XmlArray = new XmlArrayAttribute { ElementName = attr.ElementName, Form = attr.Form, IsNullable = attr.IsNullable, Namespace = attr.Namespace };
+                }
+                foreach (var attr in member.GetCustomAttributes<XmlArrayItemAttribute>()) {
+                    overrideAttr = overrideAttr ?? new XmlAttributes();
+                    overrideAttr.XmlArrayItems.Add(attr);
+                }
+                foreach (var attr in member.GetCustomAttributes<XmlAnyElementAttribute>()) {
+                    overrideAttr = overrideAttr ?? new XmlAttributes();
+                    overrideAttr.XmlAnyElements.Add(new XmlAnyElementAttribute { Name = attr.Name, Namespace = attr.Namespace });
+                }
+                if (overrideAttr != null) {
+                    overridesAdded.Add(otTag);
+                    overrides.Add(type, member.Name, overrideAttr);
+                }
+                var mType = (member is PropertyInfo pi ? pi.PropertyType : member is FieldInfo fi ? fi.FieldType : null);
+                AddOverrideAttributes(mType, overrides);
+            }
+        }
+
+        public static XmlSerializer GetSerializer(Type type) {
+            if (type == null)
+                throw new ArgumentNullException("type");
+            lock (locker) {
+                XmlSerializer serializer;
+                if (!serializers.TryGetValue(type, out serializer)) {
+                    AddOverrideAttributes(type, overrides);
+                    serializers[type] = serializer = new XmlSerializer(type, overrides);
+                }
+                return serializer;
+            }
+        }
+
+    }
+
+    public static class TypeExtensions {
+        public static IEnumerable<Type> BaseTypesAndSelf(this Type type) {
+            while (type != null) {
+                yield return type;
+                type = type.BaseType;
+            }
+        }
+    }
+}

DFe.Utils/FuncoesXml.cs

@@ -44,14 +44,21 @@ public static string ClasseParaXmlString<T>(T objeto)
         /// </summary>
         /// <typeparam name="T"></typeparam>
         /// <param name="input"></param>
+        /// <param name="ignorarOrdenacaoElementos">true caso o XML possa conter elementos fora de ordem</param>
         /// <returns></returns>
-        public static T XmlStringParaClasse<T>(string input) where T : class
+        public static T XmlStringParaClasse<T>(string input, bool ignorarOrdenacaoElementos = false) where T : class
         {
             var keyNomeClasseEmUso = typeof(T).FullName;
-            var ser = BuscarNoCache(keyNomeClasseEmUso, typeof(T));
+
+            XmlSerializer serializador;
+            if(ignorarOrdenacaoElementos) {
+                serializador = XmlOrderFreeSerializerFactory.GetSerializer(typeof(T));
+            } else {
+                serializador = BuscarNoCache(keyNomeClasseEmUso, typeof(T));
+            }
 
             using (var sr = new StringReader(input))
-                return (T)ser.Deserialize(sr);
+                return (T)serializador.Deserialize(sr);
         }
 
         /// <summary>
@@ -61,15 +68,22 @@ public static T XmlStringParaClasse<T>(string input) where T : class
         /// <typeparam name="T">Classe</typeparam>
         /// <param name="arquivo">Arquivo XML</param>
         /// <returns>Retorna a classe</returns>
-        public static T ArquivoXmlParaClasse<T>(string arquivo) where T : class
+        public static T ArquivoXmlParaClasse<T>(string arquivo, bool ignorarOrdenacaoElementos = false) where T : class
         {
             if (!File.Exists(arquivo))
             {
                 throw new FileNotFoundException("Arquivo " + arquivo + " não encontrado!");
             }
 
             var keyNomeClasseEmUso = typeof(T).FullName;
-            var serializador = BuscarNoCache(keyNomeClasseEmUso, typeof(T));
+
+            XmlSerializer serializador;
+            if (ignorarOrdenacaoElementos) {
+                serializador = XmlOrderFreeSerializerFactory.GetSerializer(typeof(T));
+            } else {
+                serializador = BuscarNoCache(keyNomeClasseEmUso, typeof(T));
+            }
+
             var stream = new FileStream(arquivo, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
             try
             {