/// <summary>
/// Serialize AMFX data.
/// </summary>
/// <exception cref="SerializationException">Error during serialization.</exception>
private static void Serialize(XmlWriter writer, object value, SerializationContext context)
{
if (writer == null) throw new ArgumentNullException("writer");
if (context == null) throw new ArgumentNullException("context");
//A null value
if (value == null)
{
WriteEmptyElement(writer, AmfxContent.Null);
writer.Flush();
return;
}
bool isDataContract;
var type = value.GetType();
var amfxtype = GetAmfxType(type, out isDataContract);
//A data contract type
if (amfxtype == AmfxContent.Object)
{
if (isDataContract)
{
var descriptor = context.GetDescriptor(type);
if (descriptor == null)
{
throw new SerializationException(
string.Format(
"Unable to resolve type '{0}'. Check if type was registered within the serializer.",
type.FullName));
}
}
WriteDataContract(writer, value, type, context, isDataContract);
writer.Flush();
return;
}
switch (amfxtype)
{
case AmfxContent.Boolean:
WriteEmptyElement(writer, (bool)value ? AmfxContent.True : AmfxContent.False);
break;
case AmfxContent.Integer:
{
WriteElement(writer, amfxtype, type.IsEnum
? GetEnumValue(context, type, value).ToString()
: value.ToString());
break;
}
case AmfxContent.Double:
WriteElement(writer, amfxtype, value.ToString());
break;
case AmfxContent.String:
WriteString(writer, value.ToString(), context);
break;
case AmfxContent.Date:
WriteDate(writer, (DateTime)value, context);
break;
case AmfxContent.ByteArray:
WriteByteArray(writer, (byte[])value, context);
break;
case AmfxContent.Xml:
WriteXml(writer, (XDocument)value, context);
break;
case AmfxContent.Array:
WriteArray(writer, (object[])value, context);
break;
default:
throw new SerializationException(string.Format("Unable to serialize type '{0}'", type.FullName));
}
writer.Flush();
}
/// <summary>
/// Write an object.
/// </summary>
private static void WriteDataContract(XmlWriter writer, object graph, Type type, SerializationContext context, bool isDataContract)
{
var index = context.References.IndexOf(graph);
//Write object reference
if (index != -1)
{
var attributes = new Dictionary<string, string> { { AmfxContent.ReferenceId, index.ToString() } };
WriteEmptyElement(writer, AmfxContent.Reference, attributes);
return;
}
context.References.Add(new AmfReference { Reference = graph, AmfxType = AmfxContent.Object });
Dictionary<string, object> properties;
if (isDataContract)
{
var descriptor = context.GetDescriptor(type);
if (descriptor == null)
{
throw new SerializationException(
string.Format(
"Unable to resolve type '{0}'. Check if type was registered within the serializer.",
type.FullName));
}
var alias = descriptor.Alias;
var traitsindex = context.TraitsIndex(alias);
writer.WriteStartElement(AmfxContent.Object);
if (!string.IsNullOrEmpty(alias))
{
writer.WriteAttributeString(AmfxContent.ObjectType, alias);
if (traitsindex == -1)
{
var typeNameIndex = context.StringReferences.IndexOf(alias);
if (typeNameIndex == -1) context.StringReferences.Add(alias);
}
}
properties = DataContractHelper.GetContractProperties(graph, descriptor.PropertyMap, descriptor.FieldMap);
//Write traits by reference
if (context.AmfVersion == AmfVersion.Amf3 && traitsindex != -1)
{
var attributes = new Dictionary<string, string> { { AmfxContent.TraitsId, traitsindex.ToString() } };
WriteEmptyElement(writer, AmfxContent.Traits, attributes);
}
//Write traits
else
{
var traits = new AmfTypeTraits { TypeName = alias, ClassMembers = properties.Keys.ToArray() };
context.TraitsReferences.Add(traits);
writer.WriteStartElement(AmfxContent.Traits);
foreach (var propertyName in properties.Keys)
{
WriteElement(writer, AmfxContent.String, propertyName);
var memberNameIndex = context.StringReferences.IndexOf(propertyName);
if (memberNameIndex == -1) context.StringReferences.Add(propertyName);
}
writer.WriteEndElement(); //End of traits
}
}
else
{
var map = (IDictionary)graph;
properties = new Dictionary<string, object>();
foreach (var key in map.Keys)
properties[key.ToString()] = map[key];
writer.WriteStartElement(AmfxContent.Object);
writer.WriteStartElement(AmfxContent.Traits);
foreach (var propertyName in properties.Keys)
{
WriteElement(writer, AmfxContent.String, propertyName);
var memberNameIndex = context.StringReferences.IndexOf(propertyName);
if (memberNameIndex == -1) context.StringReferences.Add(propertyName);
}
writer.WriteEndElement(); //End of traits
}
foreach (var value in properties.Values)
Serialize(writer, value, context);
writer.WriteEndElement(); //End of object
}