Por supuesto, esta respuesta es demasiado tarde! Pero tal vez sea útil para otros desarrolladores ;-). Usé relfection para resolver este problema, porque tenía que ser automatizado.
Se debe llamar al método estático CreateMessageType. debe ser la clase serializada que NO contiene la propiedad schemaLocation. Este método devuelve un nuevo tipo utilizando el elemento principal (denominado Dinámico), pero agrega las propiedades schemaLocation y establece la propiedad ElementName de XmlRootAttribute.
Después de crear el tipo, se debe volver a utilizar la reflexión para crear el objeto y establecer las propiedades.
El código se ve como un dolor en el xxx, pero funciona como un encanto!
Ver la codificación a continuación:
/// <summary>Copying the attributes of a type to a new type</summary>
private static void copyAttributes<TMessage>(TypeBuilder dynamictype)
{
try
{
//Iterate over all attributes of the TMessage class and copy these to the new type
IList<CustomAttributeData> attributes = CustomAttributeData.GetCustomAttributes(typeof(TMessage));
if (attributes != null)
{
foreach (CustomAttributeData attribute in attributes)
{
List<object> constructorarguments = new List<object>();
if (attribute.ConstructorArguments != null)
{
foreach (CustomAttributeTypedArgument argument in attribute.ConstructorArguments)
{
constructorarguments.Add(argument.Value);
}
}
List<FieldInfo> namedfields = new List<FieldInfo>();
List<object> namedfieldarguments = new List<object>();
List<PropertyInfo> namedproperties = new List<PropertyInfo>();
List<object> namedpropertyarguments = new List<object>();
if (attribute.NamedArguments != null)
{
//Iterate over all named arguments
foreach (CustomAttributeNamedArgument argument in attribute.NamedArguments)
{
//Check which type of argument is found
if (argument.MemberInfo is FieldInfo)
{
FieldInfo field = argument.MemberInfo as FieldInfo;
namedfields.Add(field);
namedfieldarguments.Add(argument.TypedValue.Value);
}
else if (argument.MemberInfo is PropertyInfo)
{
PropertyInfo property = argument.MemberInfo as PropertyInfo;
namedproperties.Add(property);
namedpropertyarguments.Add(argument.TypedValue.Value);
}
}
}
//Check if the current attribute is of type XmlRoot.
//In this case the ElementName or TypeName property must also be set
if (attribute.Constructor.DeclaringType.Equals(typeof(XmlRootAttribute)))
{
namedproperties.Add(typeof(XmlRootAttribute).GetProperty("ElementName"));
namedpropertyarguments.Add(typeof(TMessage).Name);
}
//Build the copy of the parent attribute
CustomAttributeBuilder copyattributebuilder = new CustomAttributeBuilder(
attribute.Constructor,
constructorarguments.ToArray(),
namedproperties.ToArray(),
namedpropertyarguments.ToArray(),
namedfields.ToArray(),
namedfieldarguments.ToArray());
//Add the attribute to the dynamic type
dynamictype.SetCustomAttribute(copyattributebuilder);
}
}
}
catch (Exception exception)
{
throw new ApplicationException("Unable to copy attribute from parent type", exception);
}
}
/// <summary>Create dynamic type for an operation message which includes the types for serialization</summary>
/// <returns>Returns dynamic type</returns>
public static Type CreateMessageType<TMessage>()
{
try
{
AssemblyBuilder assemblybuilder = AppDomain.CurrentDomain.DefineDynamicAssembly(new AssemblyName(Guid.NewGuid().ToString()), AssemblyBuilderAccess.Run);
ModuleBuilder modulebuilder = assemblybuilder.DefineDynamicModule(Guid.NewGuid().ToString(), false);
//Create type based on an unique so that it does not conflict with the OperationMessage classname
TypeBuilder typebuilder = modulebuilder.DefineType(typeof(TMessage).Name + "Dynamic", TypeAttributes.Public | TypeAttributes.Class);
//Set original message type as parent of the new dynamic type
typebuilder.SetParent(typeof(TMessage));
//Copy attributes from TMessage paren type to the dynamic type
WMQXMLMessageTypeFactory.copyAttributes<TMessage>(typebuilder);
//Create the xsi:schemaLocation property
CustomAttributeBuilder attributebuilder = new CustomAttributeBuilder(
typeof(XmlAttributeAttribute).GetConstructor(new Type[] { typeof(string) }),
new object[] { "schemaLocation" },
new PropertyInfo[] { typeof(XmlAttributeAttribute).GetProperty("Namespace") },
new object[] { XmlSchema.InstanceNamespace });
FieldBuilder schemalocationfieldbuilder = typebuilder.DefineField("SchemaLocation", typeof(string), FieldAttributes.Public);
schemalocationfieldbuilder.SetCustomAttribute(attributebuilder);
return typebuilder.CreateType();
}
catch (Exception exception)
{
throw new ApplicationException("Unable to create XML message type", exception);
}
}
El siguiente código que usé para crear el objeto
Type type = WMQXMLMessageTypeFactory.CreateMessageType<TenantRequest>();
MetaData metadata = new MetaData();
metadata.ID = Guid.NewGuid().ToString();
metadata.Created = DateTime.Now;
metadata.Application = new schemasdev.local.tenant.Application();
metadata.Application.Name = "Publish Tenant";
metadata.Application.Core = ApplicationCore.PropertySystem;
NewOperation newoperation = new NewOperation();
newoperation.Tenant = new Tenant();
newoperation.Tenant.Code = "001";
newoperation.Tenant.Name = "Mister X";
object request = type.GetConstructor(new Type[0]).Invoke(new object[0]);
(request as TenantRequest).MetaData = metadata;
(request as TenantRequest).New = newoperation;
//Setting the schema location property
type.InvokeMember("SchemaLocation", System.Reflection.BindingFlags.SetField, null, request, new object[] { "http://schemasdev.local/2012-01/Tenant/1.0/Tenant.xsd" });
System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(type);
stream = new System.IO.MemoryStream();
serializer.Serialize(stream, request);
Console.WriteLine(UTF8Encoding.UTF8.GetString(stream.ToArray()));
Y, finalmente, la salida perfecta:
<?xml version="1.0"?>
<TenantRequest xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xsi:schemaLocation="http://schemasdev.local/2012-01/Tenant/1.0/Tenant.xsd" xmlns="http://schemasdev.local/2012-01/Tenant/1.0">
<MetaData xmlns="http://schemasdev.local/2012-01/Messaging/1.0">
<ID>b59938fd-8e68-4927-87da-6d92c609f159</ID>
<Application>
<Name>Publish Tenant</Name>
<Core>PropertySystem</Core>
</Application>
<Created>2012-02-20T10:07:54.645424+01:00</Created>
</MetaData>
<New>
<Tenant>
<Code>001</Code>
<Name>Mister X</Name>
</Tenant>
</New>
</TenantRequest>
Perfecto gracias! –
¿A qué establecería schemaLocation? La ubicación desde la que lo usó XSD.EXE no es probable que esté disponible en la web, que es donde el usuario de 'xsi: schemaLocation' necesitaría encontrarla. –
@John: ¿Tal vez hay alguna opción para especificar el valor en el archivo xsd? – dtb