public void LogRotatorFileCountDetection()
{
ClearTestLoggingPath();
var config = new TextLogOutputConfig {
// we're generating 15 files from 1900 - thus the 15th file is 1914
LoggingPath = _folderPath + "/log 1994-01-01T00-00-00.txt",
LogRotate = true,
LogRotateMaxFiles = 10
};
var rotator = new LogRotator(config);
for (var i = 0; i < 15; i++)
{
var filePath = _folderPath + string.Format(_filenameFormat, new DateTime(1980 + i, 1, 1));
var fs = File.Create(filePath);
fs.Close();
// File creation dates are only per seconds, so we're skipping a bit on time (giving us a future).
File.SetCreationTimeUtc(filePath, new DateTime(1980 + i, 1, 1));
File.SetLastAccessTimeUtc(filePath, new DateTime(1980 + i, 1, 1));
File.SetLastWriteTimeUtc(filePath, new DateTime(1980 + i, 1, 1));
}
rotator.RefreshObservedFiles();
rotator.PerformLogCountTrimming();
var files = Directory.GetFiles(_folderPath);
Assert.AreEqual(10, files.Length);
Assert.IsTrue(files.Contains(config.LoggingPath));
}
public void LogRotatorFileAgeDetection()
{
ClearTestLoggingPath();
var config = new TextLogOutputConfig {
LoggingPath = _folderPath + "/log 1994-01-01T00-00-00.txt",
LogRotate = true,
// a year.
LogRotateMaxAge = new TimeSpan(365, 0, 0, 0)
};
var rotator = new LogRotator(config);
for (var i = 0; i < 15; i++)
{
var filePath = _folderPath + string.Format(_filenameFormat, new DateTime(1980 + i, 1, 1));
var fs = File.Create(filePath);
fs.Close();
File.SetCreationTimeUtc(filePath, new DateTime(1980 + i, 1, 1));
File.SetLastAccessTimeUtc(filePath, new DateTime(1980 + i, 1, 1));
File.SetLastWriteTimeUtc(filePath, new DateTime(1980 + i, 1, 1));
}
File.SetCreationTimeUtc(config.LoggingPath, DateTime.UtcNow);
File.SetLastAccessTimeUtc(config.LoggingPath, DateTime.UtcNow);
File.SetLastWriteTimeUtc(config.LoggingPath, DateTime.UtcNow);
rotator.RefreshObservedFiles();
rotator.PerformLogTimeSpanTrimming();
var files = Directory.GetFiles(_folderPath);
Assert.AreEqual(1, files.Length);
Assert.AreEqual(config.LoggingPath, files[0]);
}
public void LogRotatorFileSizeDetection()
{
ClearTestLoggingPath();
var config = new TextLogOutputConfig {
LoggingPath = _folderPath + "/log 1994-01-01T00-00-00.txt",
LogRotate = true,
LogRotateMaxSize = 5 * 1024
};
var rotator = new LogRotator(config);
for (var i = 0; i < 15; i++)
{
var filePath = _folderPath + string.Format(_filenameFormat, new DateTime(1980 + i, 1, 1));
var fs = File.Create(filePath);
// dump 1024 bytes into the file, so we should have 15kbyte of actual log data,
// disregarding drive chunk size
for (var j = 0; j < 1024; j++)
{
fs.WriteByte(0x00);
}
fs.Flush();
fs.Close();
File.SetCreationTimeUtc(filePath, new DateTime(1980 + i, 1, 1));
File.SetLastAccessTimeUtc(filePath, new DateTime(1980 + i, 1, 1));
File.SetLastWriteTimeUtc(filePath, new DateTime(1980 + i, 1, 1));
}
rotator.RefreshObservedFiles();
rotator.PerformLogSizeTrimming();
var files = Directory.GetFiles(_folderPath);
Assert.AreEqual(5, files.Length);
Assert.IsTrue(files.Contains(config.LoggingPath));
}
/// <summary>
/// return int position - current position
/// return string[] lines - lines from current log file
/// </summary>
/// <param name="lines">max lines to return</param>
/// <param name="position">position to seek</param>
/// <returns></returns>
private object GetLog(int lines, int position)
{
string log_file = LogRotator.GetCurrentLogFile();
if (string.IsNullOrEmpty(log_file))
{
return(APIStatus.notFound404("Could not find current log name. Sorry"));
}
if (!File.Exists(log_file))
{
return(APIStatus.notFound404());
}
Dictionary <string, object> result = new Dictionary <string, object>();
FileStream fs = File.OpenRead(@log_file);
if (position >= fs.Length)
{
result.Add("position", fs.Length);
result.Add("lines", new string[] { });
return(result);
}
List <string> logLines = new List <string>();
LogReader reader = new LogReader(fs, position);
for (int i = 0; i < lines; i++)
{
string line = reader.ReadLine();
if (line == null)
{
break;
}
logLines.Add(line);
}
result.Add("position", reader.Position);
result.Add("lines", logLines.ToArray());
return(result);
}