/// <summary>
/// Attempts to create an <see cref="AppenderModel"/> from the specified <paramref name="appender"/> and <paramref name="log4NetNode"/>.
/// </summary>
/// <param name="appender">XML node representing the appender</param>
/// <param name="log4NetNode">Parent log4net node, used to determine how many incoming references there are to the specified <paramref name="appender"/></param>
/// <param name="appenderModel">Resulting appender model, if found</param>
/// <returns></returns>
public static bool TryCreate(XmlNode appender, XmlNode log4NetNode, out AppenderModel appenderModel)
{
string type = appender.Attributes[Log4NetXmlConstants.Type]?.Value;
if (AppenderDescriptor.TryFindByTypeNamespace(type, out AppenderDescriptor descriptor))
{
string name = appender.Attributes[Log4NetXmlConstants.Name]?.Value;
int incomingReferences = log4NetNode.SelectNodes($"//appender-ref[@ref='{name}']").Count;
if (descriptor == AppenderDescriptor.Async)
{
appenderModel = new AsyncAppenderModel(appender, incomingReferences);
}
else
{
appenderModel = new AppenderModel(descriptor, appender, incomingReferences);
}
return(true);
}
appenderModel = null;
return(false);
}
public void TryFindByTypeNamespace_ShouldReturnFalse_AndNull_ForInvalidTypeNamespace(string typeNamespace)
{
Assert.IsFalse(AppenderDescriptor.TryFindByTypeNamespace(typeNamespace, out AppenderDescriptor descriptor));
Assert.IsNull(descriptor);
}
public void EachAppender_ShouldBeFoundByTypeNamespace(string name, AppenderType type, string typeNamespace, string elementName)
{
Assert.IsTrue(AppenderDescriptor.TryFindByTypeNamespace(typeNamespace, out AppenderDescriptor appender));
Assert.IsTrue(AreEqual(appender, name, type, typeNamespace, elementName));
}
