public void AddTypeResolver(IJsonRpcTypeResolver resolver)
{
if (resolvers == null)
throw new ArgumentNullException("resolver");
for (int i = 0; i < resolvers.Count; i++) {
if (resolvers[i].GetType() == resolver.GetType())
throw new ArgumentException("Another resolver of type '" + resolver.GetType() + "' was already present.");
}
resolvers.Add(resolver);
}
private Type ResolveType(string typeName, out IJsonRpcTypeResolver resolver)
{
for (int i = 0; i < resolvers.Count; i++) {
Type type;
resolver = resolvers[i];
if ((type = resolver.ResolveType(typeName)) != null) {
return type;
}
}
resolver = null;
return null;
}
private string ResolveTypeName(object value, out IJsonRpcTypeResolver resolver)
{
for (int i = 0; i < resolvers.Count; i++) {
string elementName;
resolver = resolvers[i];
if (!String.IsNullOrEmpty(elementName = resolver.ResolveTypeName(value.GetType()))) {
return elementName;
}
}
resolver = null;
return null;
}
private void ReadInto(JsonReader reader, JsonWriter jsonWriter, bool firstLevel, out Type type, out IJsonRpcTypeResolver resolver)
{
type = null;
resolver = null;
while (reader.Read()) {
if (reader.Token == JsonToken.PropertyName) {
string propertyName = (string)reader.Value;
if (firstLevel && propertyName == "$type") {
if (!reader.Read())
throw new FormatException();
if (reader.Token != JsonToken.String)
throw new FormatException();
string typeString = (string)reader.Value;
type = ResolveType(typeString, out resolver);
if (type == null)
throw new FormatException();
} else {
jsonWriter.WritePropertyName(propertyName);
}
} else if (reader.Token == JsonToken.Boolean) {
jsonWriter.Write((bool)reader.Value);
} else if (reader.Token == JsonToken.Int) {
jsonWriter.Write((int)reader.Value);
} else if (reader.Token == JsonToken.Long) {
jsonWriter.Write((long)reader.Value);
} else if (reader.Token == JsonToken.Double) {
jsonWriter.Write((double)reader.Value);
} else if (reader.Token == JsonToken.String) {
jsonWriter.Write((string)reader.Value);
} else if (reader.Token == JsonToken.Null) {
jsonWriter.Write(null);
} else if (reader.Token == JsonToken.ArrayStart) {
jsonWriter.WriteArrayStart();
while (reader.Read()) {
Type dummyType;
IJsonRpcTypeResolver dummyResolver;
ReadInto(reader, jsonWriter, false, out dummyType, out dummyResolver);
if (reader.Token == JsonToken.ArrayEnd) {
jsonWriter.WriteArrayEnd();
break;
}
}
} else if (reader.Token == JsonToken.ObjectEnd) {
jsonWriter.WriteObjectEnd();
break;
}
}
}
