/// <summary>
/// Populate configuration from XML via the specified <see cref="XmlReader" />.
/// </summary>
/// <param name="reader"><see cref="XmlReader" /> stream from the configuration file.</param>
/// <seealso cref="NChronicle.ConfigureFrom(string, bool, int)"/>
public void ReadXml(XmlReader reader)
{
if (reader.Name != nameof(ChronicleConfiguration))
{
throw new XmlException($"Unexpected node '{reader.Name}', expected '{nameof(ChronicleConfiguration)}'.");
}
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case nameof(this.Libraries):
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.Name)
{
case "Library":
var typeStr = reader.GetAttribute("Type");
if (string.IsNullOrEmpty(typeStr))
{
throw new XmlException
("Unexpected library configuration, type is missing.");
}
var type = Type.GetType(typeStr, false, true);
if (type == null)
{
throw new TypeLoadException
($"Unexpected library configuration, type {typeStr} could not be found.");
}
#if NETFX
if (!typeof(IChronicleLibrary).IsAssignableFrom(type))
#else
if (!typeof(IChronicleLibrary).GetTypeInfo().IsAssignableFrom(type.GetTypeInfo()))
#endif
{ throw new TypeLoadException
($"Unexpected library configuration, type {type.Name} does not implement {nameof(IChronicleLibrary)}."); }
IChronicleLibrary library = null;
try {
library = Activator.CreateInstance(type) as IChronicleLibrary;
}
catch (MissingMethodException e) {
throw new TypeLoadException
($"Unexpected library configuration for {type.Name}, type does not define a public parameterless constructor.", e);
}
if (library == null)
{
throw new TypeLoadException
($"Unexpected library configuration for {type.Name}, instance could not be cast to {nameof(IChronicleLibrary)}.");
}
library.ReadXml(reader);
this.Libraries.Add(library);
break;
default:
reader.Skip();
break;
}
}
else if (reader.NodeType == XmlNodeType.EndElement)
{
break;
}
}
break;
default:
reader.Skip();
break;
}
}
else if (reader.NodeType == XmlNodeType.EndElement)
{
break;
}
}
}
/// <summary>
/// Add an <see cref="IChronicleLibrary"/> instance to this configuration.
/// </summary>
/// <param name="library">The configured <see cref="IChronicleLibrary"/>.</param>
public void WithLibrary(IChronicleLibrary library)
{
this.Libraries.Add(library);
}