/// <summary>
/// Creates a directory tree, with all intermediate branches
/// </summary>
/// <param name="Directory">The directory to create</param>
public static void CreateDirectoryTree(DirectoryReference Directory)
{
if (!DirectoryReference.Exists(Directory))
{
CreateDirectoryTree(Directory.ParentDirectory);
DirectoryReference.CreateDirectory(Directory);
}
}
/// <summary>
/// Saves a file to disk, using the binary formatter
/// </summary>
/// <param name="Location">File to write to</param>
/// <param name="Object">Object to serialize</param>
public static void Save(FileReference Location, object Object)
{
DirectoryReference.CreateDirectory(Location.Directory);
using (FileStream Stream = new FileStream(Location.FullName, FileMode.Create, FileAccess.Write))
{
BinaryFormatter Formatter = new BinaryFormatter();
Formatter.Serialize(Stream, Object);
}
}
/// <summary>
/// Saves a file to disk using the binary formatter, without updating the timestamp if it hasn't changed
/// </summary>
/// <param name="Location">File to write to</param>
/// <param name="Object">Object to serialize</param>
public static void SaveIfDifferent(FileReference Location, object Object)
{
byte[] Contents;
using (MemoryStream Stream = new MemoryStream())
{
BinaryFormatter Formatter = new BinaryFormatter();
Formatter.Serialize(Stream, Object);
Contents = Stream.ToArray();
}
DirectoryReference.CreateDirectory(Location.Directory);
FileReference.WriteAllBytesIfDifferent(Location, Contents);
}
/// <summary>
/// Saves all the scope information to a file
/// </summary>
public static void Flush()
{
string TelemetryDir = Environment.GetEnvironmentVariable("UE_TELEMETRY_DIR");
if (TelemetryDir != null)
{
FileReference File;
using (Process Process = Process.GetCurrentProcess())
{
DirectoryReference TelemetryDirRef = new DirectoryReference(TelemetryDir);
DirectoryReference.CreateDirectory(TelemetryDirRef);
string FileName = String.Format("{0}.{1}.json", Path.GetFileName(Assembly.GetEntryAssembly().Location), Process.Id, Process.StartTime.Ticks);
File = FileReference.Combine(TelemetryDirRef, FileName);
}
using (JsonWriter Writer = new JsonWriter(File))
{
Writer.WriteObjectStart();
Writer.WriteArrayStart("Spans");
foreach (TraceSpanImpl Span in Spans)
{
if (Span.FinishTime != null)
{
Writer.WriteObjectStart();
Writer.WriteValue("Name", Span.Name);
if (Span.Resource != null)
{
Writer.WriteValue("Resource", Span.Resource);
}
if (Span.Service != null)
{
Writer.WriteValue("Service", Span.Service);
}
Writer.WriteValue("StartTime", Span.StartTime.ToString("o", CultureInfo.InvariantCulture));
Writer.WriteValue("FinishTime", Span.FinishTime.Value.ToString("o", CultureInfo.InvariantCulture));
Writer.WriteObjectStart("Metadata");
foreach (KeyValuePair <string, string> Pair in Span.Metadata)
{
Writer.WriteValue(Pair.Key, Pair.Value);
}
Writer.WriteObjectEnd();
Writer.WriteObjectEnd();
}
}
Writer.WriteArrayEnd();
Writer.WriteObjectEnd();
}
}
}
/// <summary>
/// Save a JSON object to a file on disk
/// </summary>
/// <param name="Location">The location of the file to read</param>
/// <param name="Object">The object to save</param>
public static void Save(FileReference Location, object Object)
{
string Text = Serialize(Object);
try
{
DirectoryReference.CreateDirectory(Location.Directory);
FileReference.WriteAllText(Location, Text);
}
catch (Exception Ex)
{
throw new Exception(String.Format("Unable to write '{0}'", Location), Ex);
}
}
/// <summary>
/// Adds a trace listener that writes to a log file
/// </summary>
/// <param name="OutputFile">The file to write to</param>
/// <returns>The created trace listener</returns>
public static TextWriterTraceListener AddFileWriter(string Name, FileReference OutputFile)
{
try
{
Log.OutputFile = OutputFile;
DirectoryReference.CreateDirectory(OutputFile.Directory);
TextWriterTraceListener LogTraceListener = new TextWriterTraceListener(new StreamWriter(OutputFile.FullName), Name);
Trace.Listeners.Add(LogTraceListener);
return(LogTraceListener);
}
catch (Exception Ex)
{
throw new Exception(String.Format("Unable to open log file for writing ({0})", OutputFile), Ex);
}
}
