protected override void WriteLog(LogEntry entry, Stream stream)
{
using(var writer = new StreamWriter(stream, System.Text.Encoding.UTF8))
{
writer.WriteLine(entry.ToString());
}
}
public void Log(LogEntry entry)
{
if(entry == null)
return;
//根据日志级别来调整控制台的前景色
switch(entry.Level)
{
case LogLevel.Trace:
Console.ForegroundColor = ConsoleColor.Gray;
break;
case LogLevel.Debug:
Console.ForegroundColor = ConsoleColor.DarkGray;
break;
case LogLevel.Warn:
Console.ForegroundColor = ConsoleColor.Yellow;
break;
case LogLevel.Error:
case LogLevel.Fatal:
Console.ForegroundColor = ConsoleColor.Red;
break;
}
try
{
//打印日志信息
Console.WriteLine(entry);
}
finally
{
//恢复默认颜色
Console.ResetColor();
}
}
protected override void WriteLog(LogEntry entry, Stream stream)
{
//注意：此处不能关闭stream参数传入的流，该流由基类确保安全释放！
using(var writer = new StreamWriter(stream, System.Text.Encoding.UTF8, 1024 * 16, true))
{
writer.WriteLine(entry.ToString());
}
}
public void Log(LogEntry entry)
{
if(entry == null)
return;
var filePath = this.ResolveSequence(entry);
if(string.IsNullOrWhiteSpace(filePath))
throw new InvalidOperationException("Unspecified path of the log file.");
//将日志实体加入内存队列中
_queue.Enqueue(entry);
//从线程池拉出一个后台线程进行具体的日志记录操作
ThreadPool.QueueUserWorkItem(this.LogFile, filePath);
}
private string ResolveSequence(LogEntry entry)
{
const string PATTERN = @"(?<no>\d+)";
const string SEQUENCE = "{sequence}";
var maximum = 0;
var result = string.Empty;
var filePath = this.GetFilePath(entry);
if(string.IsNullOrEmpty(filePath) || (!filePath.Contains(SEQUENCE)))
return filePath;
if(this.FileSize < 1)
return filePath.Replace(SEQUENCE, string.Empty);
var fileName = System.IO.Path.GetFileName(filePath);
var infos = Zongsoft.IO.LocalFileSystem.Instance.Directory.GetFiles(System.IO.Path.GetDirectoryName(filePath), fileName.Replace(SEQUENCE, "|" + PATTERN + "|"), false);
var pattern = string.Empty;
int index = 0, position = 0;
while((index = fileName.IndexOf(SEQUENCE, index)) >= 0)
{
if(index > 0)
pattern += Zongsoft.IO.LocalFileSystem.LocalDirectoryProvider.EscapePattern(fileName.Substring(position, index - position));
pattern += PATTERN;
index += SEQUENCE.Length;
position = index;
}
if(position < fileName.Length)
pattern += Zongsoft.IO.LocalFileSystem.LocalDirectoryProvider.EscapePattern(fileName.Substring(position));
//设置正则匹配模式为完整匹配
if(pattern != null && pattern.Length > 0)
pattern = "^" + pattern + "$";
foreach(var info in infos)
{
var match = System.Text.RegularExpressions.Regex.Match(info.Name, pattern);
if(match.Success)
{
var number = int.Parse(match.Groups["no"].Value);
if(number > maximum)
{
maximum = number;
if(info.Size < this.FileSize * KB)
result = info.Path.Url;
}
}
}
if(string.IsNullOrEmpty(result))
return filePath.Replace(SEQUENCE, (maximum + 1).ToString());
return result;
}
protected virtual string GetFilePath(LogEntry entry)
{
var filePath = string.Empty;
if(string.IsNullOrWhiteSpace(_filePath))
filePath = string.IsNullOrWhiteSpace(entry.Source) ? string.Empty : entry.Source + ".log";
else
filePath = Logger.TemplateManager.Evaluate<string>(_filePath.Trim(), entry);
if(string.IsNullOrWhiteSpace(filePath))
return null;
filePath = filePath.Replace((Path.DirectorySeparatorChar == '/' ? '\\' : '/'), Path.DirectorySeparatorChar).Trim();
if(filePath[0] == '/' || filePath[0] == '\\')
{
filePath = Path.Combine(Path.GetPathRoot(Zongsoft.ComponentModel.ApplicationContextBase.Current.ApplicationDirectory), filePath.Substring(1));
if(!Directory.Exists(Path.GetDirectoryName(filePath)))
Directory.CreateDirectory(Path.GetDirectoryName(filePath));
return filePath;
}
string directoryPath;
if(filePath.StartsWith("~/") || filePath.StartsWith("~\\"))
directoryPath = Zongsoft.ComponentModel.ApplicationContextBase.Current.EnsureDirectory(Path.GetDirectoryName(filePath.Substring(2)));
else
directoryPath = Zongsoft.ComponentModel.ApplicationContextBase.Current.EnsureDirectory(Path.GetDirectoryName(filePath));
return Path.Combine(directoryPath, Path.GetFileName(filePath));
}
protected abstract void WriteLog(LogEntry entry, Stream output);
private static void Log(LogEntry entry)
{
if(entry == null || _handlers == null)
return;
System.Threading.Tasks.Parallel.ForEach(_handlers, handler =>
{
if(handler != null)
handler.Handle(entry);
});
}
protected virtual void Log(LogEntry entry)
{
if(entry == null)
return;
var loggers = _selector.Select(_parameter);
System.Threading.Tasks.Parallel.ForEach(loggers, logger =>
{
if(logger != null)
logger.Log(entry);
});
}
public void Log(LogEntry entry)
{
var dataAccess = this.DataAccess;
if(dataAccess == null)
return;
var storage = this.Storage;
Zongsoft.Collections.IQueue queue = null;
foreach(Zongsoft.Options.Configuration.SettingElement parameter in _configuration.Parameters)
{
Logger.TemplateManager.Evaluate<string>(parameter.Value, entry);
}
throw new NotImplementedException();
}
public void Handle(LogEntry entry)
{
this.Execute(entry);
}