public static FileChecker TryCreate(ReadedFileInfo fileInfo, WatchMode watch, TimeSpan? delay, CheckMode check)
{
switch (watch)
{
case WatchMode.None:
return null;
case WatchMode.Time:
if (delay == null)
throw new ArgumentNullException("delay");
return new PeriodicFileChecker(fileInfo, delay.Value, check);
case WatchMode.Auto:
try
{
return new WatchedFileChecker(fileInfo, delay, check);
}
catch (Exception)
{
if (delay == null)
throw;
}
return new PeriodicFileChecker(fileInfo, delay.Value, check);
case WatchMode.System:
return new WatchedFileChecker(fileInfo, delay, check);
default:
throw new ArgumentOutOfRangeException("unexpected mode");
}
}
public void DeleteDirectory()
{
var tempPath = Path.Combine(Path.GetTempPath(), "NConfiguration.Tests");
var dirName = Guid.NewGuid().ToString();
var watchedFile = Path.Combine(tempPath, dirName, "test.xml");
Directory.CreateDirectory(Path.Combine(tempPath, dirName));
File.WriteAllText(watchedFile, _xmlCfg);
var fileInfo = ReadedFileInfo.Create(watchedFile, _ => _.CopyTo(Stream.Null));
var fileChecker = FileChecker.TryCreate(fileInfo, WatchMode.System, TimeSpan.FromMilliseconds(100), CheckMode.All);
Thread.Sleep(50);
var wait = new ManualResetEvent(false);
fileChecker.Changed += (a, e) =>
{
wait.Set();
};
Directory.Delete(Path.Combine(tempPath, dirName), true);
Directory.CreateDirectory(Path.Combine(tempPath, dirName)); //no lock directory
Assert.IsTrue(wait.WaitOne(10000), "no event");
}
public static FileChecker TryCreate(ReadedFileInfo fileInfo, WatchMode watch, TimeSpan?delay, CheckMode check)
{
switch (watch)
{
case WatchMode.None:
return(null);
case WatchMode.Time:
if (delay == null)
{
throw new ArgumentNullException("delay");
}
return(new PeriodicFileChecker(fileInfo, delay.Value, check));
case WatchMode.Auto:
try
{
return(new WatchedFileChecker(fileInfo, delay, check));
}
catch (Exception)
{
if (delay == null)
{
throw;
}
}
return(new PeriodicFileChecker(fileInfo, delay.Value, check));
case WatchMode.System:
return(new WatchedFileChecker(fileInfo, delay, check));
default:
throw new ArgumentOutOfRangeException("unexpected mode");
}
}
public void ChangeByte(CheckMode checkMode, bool expectedEvent)
{
string file = Path.GetTempFileName();
File.WriteAllBytes(file, new byte[] { 1, 2, 3 });
var fileInfo = ReadedFileInfo.Create(file, _ => _.CopyTo(Stream.Null));
var m = createChecker(fileInfo, checkMode);
var wait = new ManualResetEvent(false);
m.Changed += (a, e) =>
{
wait.Set();
};
Task.Factory.StartNew(() =>
{
Thread.Sleep(400);
using (var fs = new FileStream(file, FileMode.Open, FileAccess.Write, FileShare.ReadWrite))
{
fs.Position = 2;
fs.WriteByte(1);
fs.Close();
}
}, TaskCreationOptions.LongRunning);
Assert.AreEqual(expectedEvent, wait.WaitOne(700), "700 ms elapsed");
}
public static FileChecker TryCreate(IConfigNodeProvider nodeProvider, ReadedFileInfo fileInfo)
{
var node = nodeProvider.ByName(ConfigSectionName).FirstOrDefault();
if (node == null)
return null;
var cfg = DefaultDeserializer.Instance.Deserialize<WatchFileConfig>(node);
return TryCreate(fileInfo, cfg.Mode, cfg.Delay, cfg.Check.GetValueOrDefault(CheckMode.All));
}
public PeriodicFileChecker(ReadedFileInfo fileInfo, TimeSpan delay, CheckMode checkMode)
: base(fileInfo)
{
if (delay <= TimeSpan.FromMilliseconds(1))
throw new ArgumentOutOfRangeException("delay should be greater of 1 ms");
_delay = delay;
_checkMode = checkMode;
_cts = new CancellationTokenSource();
Task.Run(() => checkLoop()).ThrowUnhandledException("Error while file checking.");
}
public IChangeable createChecker(ReadedFileInfo fileInfo, CheckMode checkMode)
{
if (_fromConfig)
{
string modeText;
if (_monitorType == "Periodic")
{
modeText = "Time";
}
else if (_monitorType == "Watched")
{
modeText = "System";
}
else
{
throw new NotImplementedException();
}
string checkText = "None";
if (checkMode.HasFlag(CheckMode.Hash))
{
checkText = "Hash";
}
if (checkMode.HasFlag(CheckMode.Attr))
{
if (checkText == "None")
{
checkText = "Attr";
}
else
{
checkText += ",Attr";
}
}
var settings = string.Format(_xmlFormat, modeText, checkText).ToXmlSettings();
return(FileChecker.TryCreate(settings, fileInfo));
}
else
{
if (_monitorType == "Periodic")
{
return(new PeriodicFileChecker(fileInfo, TimeSpan.FromMilliseconds(100), checkMode));
}
if (_monitorType == "Watched")
{
return(new WatchedFileChecker(fileInfo, TimeSpan.FromMilliseconds(100), checkMode));
}
}
throw new NotImplementedException();
}
/// <summary>
/// settings loaded from a file
/// </summary>
/// <param name="fileName">file name</param>
public XmlFileSettings(string fileName)
{
try
{
_fileInfo = ReadedFileInfo.Create(fileName,
stream => { _root = XDocument.Load(stream).Root; });
}
catch(SystemException ex)
{
throw new ApplicationException(string.Format("Unable to load file `{0}'", fileName), ex);
}
}
public WatchedFileChecker(ReadedFileInfo fileInfo, TimeSpan? delay, CheckMode checkMode)
: base(fileInfo)
{
_delay = delay.GetValueOrDefault(TimeSpan.FromSeconds(5 * 60));
if (_delay <= TimeSpan.FromMilliseconds(1))
throw new ArgumentOutOfRangeException("delay should be greater of 1 ms");
_fileInfo = fileInfo;
_checkMode = checkMode;
_watcher = createWatch();
Task.Run(() => checkLoop()).ThrowUnhandledException("Error while file checking.");
}
public static FileChecker TryCreate(IConfigNodeProvider nodeProvider, ReadedFileInfo fileInfo)
{
var node = nodeProvider.ByName(ConfigSectionName).FirstOrDefault();
if (node == null)
{
return(null);
}
var cfg = DefaultDeserializer.Instance.Deserialize <WatchFileConfig>(node);
return(TryCreate(fileInfo, cfg.Mode, cfg.Delay, cfg.Check.GetValueOrDefault(CheckMode.All)));
}
private static IChangeable checkerCreatorByName(string name, ReadedFileInfo fi, TimeSpan delay, CheckMode mode)
{
switch (name)
{
case "PeriodicFileChecker":
return(new PeriodicFileChecker(fi, delay, mode));
case "WatchedFileChecker":
return(new WatchedFileChecker(fi, delay, mode));
default:
throw new NotSupportedException();
}
}
public void None(int?ms)
{
TimeSpan?ts = null;
if (ms != null)
{
ts = TimeSpan.FromMilliseconds(ms.Value);
}
string file = Path.GetTempFileName();
var fileInfo = ReadedFileInfo.Create(file, _ => _.CopyTo(Stream.Null));
Assert.IsNull(FileChecker.TryCreate(fileInfo, WatchMode.None, ts, CheckMode.All));
}
public void FileChange(WatchMode mode, int?ms)
{
TimeSpan?ts = null;
if (ms != null)
{
ts = TimeSpan.FromMilliseconds(ms.Value);
}
string file = Path.GetTempFileName();
File.WriteAllBytes(file, new byte[] { 1, 2, 3 });
var fileInfo = ReadedFileInfo.Create(file, _ => _.CopyTo(Stream.Null));
var m = FileChecker.TryCreate(fileInfo, mode, ts, CheckMode.All);
var wait = new ManualResetEvent(false);
m.Changed += (a, e) =>
{
wait.Set();
};
var t = Task.Factory.StartNew(() =>
{
Thread.Sleep(1000);
using (var fs = new FileStream(file, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite))
{
fs.Position = 2;
fs.WriteByte(1);
fs.Close();
};
}, TaskCreationOptions.LongRunning);
Task.WaitAll(t);
Assert.IsTrue(wait.WaitOne(10000), "10 sec elapsed");
wait.Reset();
m.Changed += (a, e) =>
{
wait.Set();
};
Assert.IsTrue(wait.WaitOne(10000), "10 sec elapsed");
}
public IniFileSettings(string fileName)
{
try
{
var context = new ParseContext();
_fileInfo = ReadedFileInfo.Create(fileName, stream =>
{
using (var sr = new StreamReader(stream, Encoding.UTF8))
context.ParseSource(sr.ReadToEnd());
});
_sections = new List<Section>(context.Sections);
}
catch(SystemException ex)
{
throw new ApplicationException(string.Format("Unable to load file `{0}'", fileName), ex);
}
}
public PeriodicFileChecker(ReadedFileInfo fileInfo, TimeSpan delay, CheckMode checkMode)
: base(fileInfo)
{
if (delay <= TimeSpan.FromMilliseconds(1))
{
throw new ArgumentOutOfRangeException("delay should be greater of 1 ms");
}
_delay = delay;
_checkMode = checkMode;
_cts = new CancellationTokenSource();
#if NET40
Task.Factory.StartNew(checkLoop, TaskCreationOptions.LongRunning).ThrowUnhandledException(MsgErrorWhileFileChecking);
#else
Task.Run(() => checkLoop()).ThrowUnhandledException(MsgErrorWhileFileChecking);
#endif
}
public WatchedFileChecker(ReadedFileInfo fileInfo, TimeSpan?delay, CheckMode checkMode)
: base(fileInfo)
{
_delay = delay.GetValueOrDefault(TimeSpan.FromSeconds(5 * 60));
if (_delay <= TimeSpan.FromMilliseconds(1))
{
throw new ArgumentOutOfRangeException("delay should be greater of 1 ms");
}
_fileInfo = fileInfo;
_checkMode = checkMode;
_watcher = createWatch();
#if NET40
Task.Factory.StartNew(checkLoop, TaskCreationOptions.LongRunning).ThrowUnhandledException(MsgErrorWhileFileChecking);
#else
Task.Run(() => checkLoop()).ThrowUnhandledException(MsgErrorWhileFileChecking);
#endif
}
public JsonFileSettings(string fileName)
{
try
{
JValue val = null;
_fileInfo = ReadedFileInfo.Create(fileName, stream =>
{
using (var sr = new StreamReader(stream, Encoding.UTF8))
val = JValue.Parse(sr.ReadToEnd());
});
if (val.Type != TokenType.Object)
throw new FormatException("required json object in content");
_obj = (JObject)val;
}
catch(SystemException ex)
{
throw new ApplicationException(string.Format("Unable to load file `{0}'", fileName), ex);
}
}
public void DeletedFile()
{
string file = Path.GetTempFileName();
File.WriteAllBytes(file, new byte[] { 1, 2, 3 });
var fileInfo = ReadedFileInfo.Create(file, _ => _.CopyTo(Stream.Null));
File.Delete(file);
var m = FileChecker.TryCreate(fileInfo, WatchMode.System, null, CheckMode.All);
var wait = new ManualResetEvent(false);
m.Changed += (a, e) =>
{
wait.Set();
};
Assert.IsTrue(wait.WaitOne(10000), "10 sec elapsed");
}
public void ExceptionInEventHandler(Func <ReadedFileInfo, IChangeable> checkerCreator, string[] workflow)
{
string file = Path.GetTempFileName();
File.WriteAllBytes(file, new byte[] { 1, 2, 3 });
var fileInfo = ReadedFileInfo.Create(file, _ => _.CopyTo(Stream.Null));
IChangeable monitor = null;
var wait = new ManualResetEvent(false);
Exception unhandledException = null;
UnhandledExceptionEventHandler handler = (sender, args) =>
{
unhandledException = (Exception)args.ExceptionObject;
wait.Set();
};
AppDomain.CurrentDomain.UnhandledException += handler;
try
{
foreach (var op in workflow)
{
switch (op)
{
case "create":
monitor = checkerCreator(fileInfo);
break;
case "subscribe":
monitor.Changed += (a, e) =>
{
throw new Exception("test");
};
break;
case "delete":
SafeDelete(file);
break;
case "modify":
Task.Factory.StartNew(() =>
{
Thread.Sleep(150);
using (var fs = new FileStream(file, FileMode.Open, FileAccess.Write, FileShare.ReadWrite))
{
fs.Position = 2;
fs.WriteByte(1);
fs.Close();
};
}, TaskCreationOptions.LongRunning);
break;
case "delay":
Thread.Sleep(75);
break;
default:
throw new NotSupportedException();
}
}
Assert.IsTrue(wait.WaitOne(10000), "10 sec elapsed");
}
finally
{
AppDomain.CurrentDomain.UnhandledException -= handler;
}
Console.WriteLine(unhandledException);
Assert.That(unhandledException.Message, Is.EqualTo("Error while file checking."));
Assert.That(unhandledException.InnerException, Is.Not.Null);
Assert.That(unhandledException.InnerException.Message, Is.EqualTo("test"));
}
public void WrongTimeArguments_Null()
{
var fileInfo = ReadedFileInfo.Create(Path.GetTempFileName(), _ => _.CopyTo(Stream.Null));
Assert.Throws <ArgumentNullException>(() => FileChecker.TryCreate(fileInfo, WatchMode.Time, null, CheckMode.All));
}
protected FileChecker(ReadedFileInfo fileInfo)
{
_fileInfo = fileInfo;
}
public void WrongTimeArguments_OutOfRange()
{
var fileInfo = ReadedFileInfo.Create(Path.GetTempFileName(), _ => _.CopyTo(Stream.Null));
Assert.Throws <ArgumentOutOfRangeException>(() => FileChecker.TryCreate(fileInfo, WatchMode.Time, TimeSpan.FromMilliseconds(1), CheckMode.All));
}
public IChangeable createChecker(ReadedFileInfo fileInfo, CheckMode checkMode)
{
if (_fromConfig)
{
string modeText;
if (_monitorType == "Periodic")
modeText = "Time";
else if(_monitorType == "Watched")
modeText = "System";
else
throw new NotImplementedException();
string checkText = "None";
if(checkMode.HasFlag(CheckMode.Hash))
checkText = "Hash";
if(checkMode.HasFlag(CheckMode.Attr))
{
if(checkText == "None")
checkText = "Attr";
else
checkText += ",Attr";
}
var settings = string.Format(_xmlFormat, modeText, checkText).ToXmlSettings();
return FileChecker.TryCreate(settings, fileInfo);
}
else
{
if (_monitorType == "Periodic")
return new PeriodicFileChecker(fileInfo, TimeSpan.FromMilliseconds(100), checkMode);
if (_monitorType == "Watched")
return new WatchedFileChecker(fileInfo, TimeSpan.FromMilliseconds(100), checkMode);
}
throw new NotImplementedException();
}
protected FileChecker(ReadedFileInfo fileInfo)
{
_fileInfo = fileInfo;
}
