private void SerializeNode(JsonWriter writer, IXmlNode node, XmlNamespaceManager manager, bool writePropertyName)
{
switch (node.NodeType)
{
case XmlNodeType.Document:
case XmlNodeType.DocumentFragment:
SerializeGroupedNodes(writer, node, manager, writePropertyName);
break;
case XmlNodeType.Element:
if (IsArray(node) && node.ChildNodes.All(n => n.LocalName == node.LocalName) && node.ChildNodes.Count > 0)
{
SerializeGroupedNodes(writer, node, manager, false);
}
else
{
manager.PushScope();
foreach (IXmlNode attribute in node.Attributes)
{
if (attribute.NamespaceUri == "http://www.w3.org/2000/xmlns/")
{
string namespacePrefix = (attribute.LocalName != "xmlns")
? attribute.LocalName
: string.Empty;
string namespaceUri = attribute.Value;
manager.AddNamespace(namespacePrefix, namespaceUri);
}
}
if (writePropertyName)
writer.WritePropertyName(GetPropertyName(node, manager));
if (!ValueAttributes(node.Attributes).Any() && node.ChildNodes.Count == 1
&& node.ChildNodes[0].NodeType == XmlNodeType.Text)
{
// write elements with a single text child as a name value pair
writer.WriteValue(node.ChildNodes[0].Value);
}
else if (node.ChildNodes.Count == 0 && CollectionUtils.IsNullOrEmpty(node.Attributes))
{
IXmlElement element = (IXmlElement)node;
// empty element
if (element.IsEmpty)
writer.WriteNull();
else
writer.WriteValue(string.Empty);
}
else
{
writer.WriteStartObject();
for (int i = 0; i < node.Attributes.Count; i++)
{
SerializeNode(writer, node.Attributes[i], manager, true);
}
SerializeGroupedNodes(writer, node, manager, true);
writer.WriteEndObject();
}
manager.PopScope();
}
break;
case XmlNodeType.Comment:
if (writePropertyName)
writer.WriteComment(node.Value);
break;
case XmlNodeType.Attribute:
case XmlNodeType.Text:
case XmlNodeType.CDATA:
case XmlNodeType.ProcessingInstruction:
case XmlNodeType.Whitespace:
case XmlNodeType.SignificantWhitespace:
if (node.NamespaceUri == "http://www.w3.org/2000/xmlns/" && node.Value == JsonNamespaceUri)
return;
if (node.NamespaceUri == JsonNamespaceUri)
{
if (node.LocalName == "Array")
return;
}
if (writePropertyName)
writer.WritePropertyName(GetPropertyName(node, manager));
writer.WriteValue(node.Value);
break;
case XmlNodeType.XmlDeclaration:
IXmlDeclaration declaration = (IXmlDeclaration)node;
writer.WritePropertyName(GetPropertyName(node, manager));
writer.WriteStartObject();
if (!string.IsNullOrEmpty(declaration.Version))
{
writer.WritePropertyName("@version");
writer.WriteValue(declaration.Version);
}
if (!string.IsNullOrEmpty(declaration.Encoding))
{
writer.WritePropertyName("@encoding");
writer.WriteValue(declaration.Encoding);
}
if (!string.IsNullOrEmpty(declaration.Standalone))
{
writer.WritePropertyName("@standalone");
writer.WriteValue(declaration.Standalone);
}
writer.WriteEndObject();
break;
case XmlNodeType.DocumentType:
IXmlDocumentType documentType = (IXmlDocumentType)node;
writer.WritePropertyName(GetPropertyName(node, manager));
writer.WriteStartObject();
if (!string.IsNullOrEmpty(documentType.Name))
{
writer.WritePropertyName("@name");
writer.WriteValue(documentType.Name);
}
if (!string.IsNullOrEmpty(documentType.Public))
{
writer.WritePropertyName("@public");
writer.WriteValue(documentType.Public);
}
if (!string.IsNullOrEmpty(documentType.System))
{
writer.WritePropertyName("@system");
writer.WriteValue(documentType.System);
}
if (!string.IsNullOrEmpty(documentType.InternalSubset))
{
writer.WritePropertyName("@internalSubset");
writer.WriteValue(documentType.InternalSubset);
}
writer.WriteEndObject();
break;
default:
throw new JsonSerializationException("Unexpected XmlNodeType when serializing nodes: " + node.NodeType);
}
}
