/// <summary>
/// Reads the attribute <c>customsession</c>
/// from <see cref="MonoRailConfiguration"/> and
/// instantiate it based on the type name provided.
/// </summary>
/// <exception cref="ConfigurationException">
/// If the typename was not provided or the type
/// could not be instantiated/found
/// </exception>
/// <param name="configuration"></param>
public override void Init(MonoRailConfiguration configuration)
{
XmlAttribute customSessionAtt =
configuration.ConfigSection.Attributes["customsession"];
if (customSessionAtt == null || customSessionAtt.Value.Length == 0)
{
throw new ConfigurationException("The CustomSessionExtension requires that " +
"the type that implements ICustomSessionFactory be specified through the " +
"'customsession' attribute on 'monoRail' configuration node");
}
Type customSessType = MonoRailConfiguration.GetType(customSessionAtt.Value);
if (customSessType == null)
{
throw new ConfigurationException("The Type for the custom session could not be loaded. " +
customSessionAtt.Value);
}
try
{
customSession = (ICustomSessionFactory)Activator.CreateInstance(customSessType);
}
catch (InvalidCastException)
{
throw new ConfigurationException("The Type for the custom session must " +
"implement ICustomSessionFactory. " + customSessionAtt.Value);
}
}
private void InstallExceptionHandler(XmlNode node, String typeName)
{
IExceptionHandler handler = null;
Type handlerType = MonoRailConfiguration.GetType(typeName);
if (handlerType == null)
{
throw new ConfigurationException("The Type for the custom session could not be loaded. " +
typeName);
}
try
{
handler = (IExceptionHandler)Activator.CreateInstance(handlerType);
}
catch (InvalidCastException)
{
throw new ConfigurationException("The Type for the custom session must " +
"implement ICustomSessionFactory. " + typeName);
}
IConfigurableHandler configurableHandler = handler as IConfigurableHandler;
if (configurableHandler != null)
{
configurableHandler.Configure(node);
}
handler.Initialize();
if (firstHandler == null)
{
firstHandler = handler;
}
else
{
IExceptionHandler navHandler = firstHandler;
while (navHandler != null)
{
if (navHandler.Next == null)
{
navHandler.Next = handler;
break;
}
navHandler = navHandler.Next;
}
}
}