public static string GetText(this LogEntryBase logEntry)
{
var sb = new StringBuilder();
sb.AppendFormat("[{0}] ", logEntry.EntryDateTime)
.AppendLine(logEntry.Message)
.AppendLine(logEntry.AdditionalInformation);
return(sb.ToString());
}
public void SaveLogEntry(LogEntryBase logEntry)
{
var exception = logEntry as ExceptionLogEntry;
if (exception != null)
{
SaveException(exception);
}
else
{
var simpleLogEntry = logEntry as SimpleLogEntry;
if (simpleLogEntry != null)
{
SaveSimpleLogEntry(simpleLogEntry);
}
}
}
// functional version of visitor pattern
public static void Match(this LogEntryBase logEntryBase, Action<ExceptionLogEntry> exceptionLogEntryMatch,
Action<SimpleLogEntry> simpleLogEntryMatch)
{
var exceptionLogEntry = logEntryBase as ExceptionLogEntry;
if (exceptionLogEntry != null)
{
exceptionLogEntryMatch(exceptionLogEntry);
return;
}
var simpleLogEntry = logEntryBase as SimpleLogEntry;
if (simpleLogEntry != null)
{
simpleLogEntryMatch(simpleLogEntry);
return;
}
throw new InvalidOperationException("Unknown LogEntry type");
}
public void SaveLogEntry(LogEntryBase logEntry)
{
logEntry.Accept(this);
}
public void SaveLogEntry(LogEntryBase logEntry)
{
logEntry.Accept(this);
}
public void SaveLogEntry(LogEntryBase logEntry)
{
logEntry.Match(SaveException, SaveSimpleLogEntry);
}
