/// <summary>
/// Reads the contents of a data block from an XML document.
/// </summary>
/// <param name="thisNode">XML node which represents an instance of this data block.</param>
/// <param name="index">Index within a sequence (starts at 0).</param>
public void ReadXml(XmlNode thisNode, int index)
{
try
{
SRXmlNodeReader reader = new SRXmlNodeReader(thisNode);
name = reader.ReadString("name");
if (name == "") name = null;
handleOffset = reader.ReadUInt64("handle");
parentHandleOffset = reader.ReadUInt64("parent_handle");
objectTypeHash = reader.ReadInt32("object_type_hash");
padding = reader.ReadUInt16("padding");
XmlNodeList propertyNodes = reader.Node.SelectNodes("./properties/" + SRZoneProperty.XmlTagName);
propertyList = new List<SRZoneProperty>(propertyNodes.Count);
for (int i = 0; i < propertyNodes.Count; i++)
propertyList.Add(SRZoneProperty.Create(propertyNodes[i], i));
}
catch (Exception e)
{
// Add context information for the error message
if (index >= 0)
e.Data[BlockName] = index + 1;
throw;
}
}
/// <summary>
/// Reads a property from an XML document and creates a new property object containing the data.
/// The returned property will be an instance of one of the concrete derived property classes.
/// </summary>
/// <param name="thisNode">XML node which represents an instance of this data block.</param>
/// <param name="index">Index within a sequence (starts at 0).</param>
/// <returns>The new zone property which was read from the input stream.</returns>
public static SRZoneProperty Create(XmlNode parentNode, int index)
{
SRZoneProperty property;
try
{
// Read the common header
SRXmlNodeReader reader = new SRXmlNodeReader(parentNode);
UInt16 type = reader.ReadUInt16("type");
Int32 nameCrc = reader.ReadInt32("name_crc");
// Create the appropriate derived class based on the header information
if (SRRawDataBlock.HasRawXmlData(parentNode))
property = new SRZoneDataProperty(type, nameCrc);
else
property = Create(type, nameCrc);
// Read the class-specific data into the derived class
property.ReadXmlData(SRXmlNodeReader.GetNode(parentNode, "value"));
// Read the optional padding data
XmlNode paddingNode = reader.GetNodeOptional("padding");
if (paddingNode != null && SRRawDataBlock.HasRawXmlData(paddingNode))
property.paddingData = new SRRawDataBlock(paddingNode);
}
catch (Exception e)
{
// Add context information for the error message
if (index >= 0)
e.Data[BlockName] = index + 1;
throw;
}
return property;
}