/// <summary>
/// This makes sure that the writer exists to be written to.
/// </summary>
private void ensureWriter()
{
//Resolve file name given. relative paths (if present) are resolved to full paths.
// Also allows for paths like this: initializeData="~/Logs/{ApplicationName}_{DateTime:yyyy-MM-dd}.log"
var logFileFullPath = ServerPathUtility.ResolvePhysicalPath(fileName);
var writer = base.Writer;
if (writer == null && createWriter(logFileFullPath))
{
writer = base.Writer;
}
if (!File.Exists(logFileFullPath))
{
if (writer != null)
{
try {
writer.Flush();
writer.Close();
writer.Dispose();
} catch (ObjectDisposedException) { }
}
createWriter(logFileFullPath);
}
//Custom code to package the previous log file(s) into a zip file.
if (AddToArchive)
{
TextFileArchiveHelper.Archive(logFileFullPath);
}
}
bool createWriter(string logFileFullPath)
{
try {
logFileFullPath = ServerPathUtility.ResolveOrCreatePath(logFileFullPath);
var writer = new StreamWriter(logFileFullPath, true);
base.Writer = writer;
return(true);
} catch (IOException) {
//locked as already in use
return(false);
} catch (UnauthorizedAccessException) {
//ERROR_ACCESS_DENIED, mostly ACL issues
return(false);
}
}
