private TextStreamWriter CreateWriter()
{
string fileName = _fileBaseName;
if (string.IsNullOrEmpty(fileName))
{
fileName = Path.GetFullPath("log.log");
}
DirectoryInfo dinfo = new DirectoryInfo(Path.GetDirectoryName(fileName));
string name = Path.GetFileNameWithoutExtension(fileName);
if (!dinfo.Exists)
{
dinfo.Create();
}
FileStream stream = null;
using (StringBuilderCache c = StringBuilderCache.Acquire()) {
c.Builder.Append(Path.Combine(dinfo.FullName, name)).Append('-');
string ext = Path.GetExtension(fileName);
FileRollOver rollOver = _settings.RollOver;
if (rollOver >= FileRollOver.Monthly &&
rollOver <= FileRollOver.Hourly)
{
GetDateMetric(c, rollOver);
}
else if (rollOver == FileRollOver.Size)
{
stream = GetCounterFile(c.Builder, dinfo, name, ext);
}
else
{
_metricDue = DateTime.MaxValue;
}
c.Builder.Append(ext);
fileName = c.ToString();
}
if (stream == null)
{
stream = new FileStream(fileName, FileMode.Append, FileAccess.Write, FileShare.Read);
}
//} catch ( IOException ) {
// fileName += Guid.NewGuid().ToString();
// stream = new FileStream( fileName, FileMode.Append, FileAccess.Write, FileShare.Read );
//}
var file = new TextStreamWriter(stream, Encoding.UTF8, 4096, true);
using (StringBuilderCache c = StringBuilderCache.Acquire()) {
c.Builder.Append("## ")
.Append(stream.Length > 0 ? "Append" : "Created")
.Append('[')
.Append(DateTime.UtcNow.ToString("s", DateTimeFormatInfo.InvariantInfo))
.Append(']')
.Append(Environment.NewLine);
file.Write(c);
}
return(file);
}
protected internal override void Write(StringBuilder b)
{
TextStreamWriter file = LockWriter();
try {
file.Write(b);
} finally {
Monitor.Exit(_fileSync);
}
}