/// <summary>
/// 结束会话跟踪
/// </summary>
/// <param name="traceContext">跟踪上下文</param>
public static void EndSpan(UrlTraceContext traceContext)
{
try
{
if (traceContext.TraceSpan != null)
traceContext.TraceSpan.Stop();
}
catch
{ }
}
/// <summary>
/// 创建新的实例
/// </summary>
/// <returns></returns>
public static UrlTraceContext Create()
{
var context = new UrlTraceContext();
//跟踪开始时间
context.StartTime = DateTime.Now;
HttpContext.Current.Items.Add(cacheKey, context);
return context;
}
/// <summary>
/// 开始会话跟踪
/// </summary>
/// <param name="traceContext">跟踪上下文</param>
public static void StartSpan(UrlTraceContext traceContext)
{
ISpan span = null;
long traceId, spanId;
try
{
tracer.Clear();
var request = HttpContext.Current.Request;
if (long.TryParse(request.Headers["Tracing-TraceId"], out traceId) && long.TryParse(request.Headers["Tracing-SpanId"], out spanId))
span = tracer.ContinueSpan("HttpRequest", typeof(UrlTraceLogger).FullName, traceId, spanId, GetSpanType(request)); //延续现有跟踪
else
span = tracer.StartSpan("HttpRequest", typeof(UrlTraceLogger).FullName, GetSpanType(request)); //开始新的跟踪
//将TraceId存放起来供后续其他处理逻辑使用，例如写入Html<meta>标签等
HttpContext.Current.Items.Add(AppConst.CloggingTraceIdKey, span.TraceId);
traceContext.TraceSpan = span;
}
catch
{}
}
/// <summary>
/// 记录
/// </summary>
/// <param name="traceContext">跟踪上下文</param>
public static void Log(UrlTraceContext traceContext)
{
if (traceContext.TraceSpan == null || traceContext.TraceInfo == null)
return;
//写入Trace信息
WriteTraceInfo(traceContext.TraceInfo);
//写入component
UrlTracerContain.AddUrlTrace(traceContext.TraceInfo);
//写入Metric信息
WriteMetricInfo(traceContext.TraceInfo);
}
/// <summary>
/// 结束收集
/// </summary>
/// <param name="traceContext">跟踪上下文</param>
public static void EndColloct(UrlTraceContext traceContext)
{
if (traceContext.TraceSpan == null || traceContext.TraceInfo == null)
return;
var traceInfo = traceContext.TraceInfo;
try
{
//请求文件的虚拟路径
traceInfo.FilePath = GetFilePath();
if (traceInfo.TraceItems.ResponseStatus)
traceInfo.ResponseStatus = (int)HttpContext.Current.Response.StatusCode;
if (traceInfo.TraceItems.RequestCost)
traceInfo.RequestCost = DateTime.Now.Subtract(traceContext.StartTime).TotalMilliseconds;
}
catch
{ }
}
/// <summary>
/// 开始收集
/// </summary>
/// <param name="traceContext">跟踪上下文</param>
public static void StartCollect(UrlTraceContext traceContext)
{
if (traceContext.TraceSpan == null)
return;
var request = HttpContext.Current.Request;
var response = HttpContext.Current.Response;
UrlTraceInfo traceInfo = new UrlTraceInfo();
try
{
traceInfo.TraceItems = (UrlTraceItems)ConfigHelper.UrlTraceItems.Clone();
traceInfo.HostAddress = request.ServerVariables["Server_Name"].ToLower(); //主机域名或IP
//请求的目标服务方法
if (traceContext.TraceSpan.SpanType == SpanType.WEB_SERVICE && traceInfo.TraceItems.WSRequestInfo)
{
string requestType = request.Headers["Tracing-RequestType"];
if (requestType != null)
{
traceInfo.RequestType = requestType;
}
else
{
requestType = request.Headers["SOAPAction"];
if (requestType != null)
{
Match match = Regex.Match(requestType, "/?([^\"/]*)\"$", RegexOptions.Compiled);
if (match.Success && match.Groups.Count > 1)
traceInfo.RequestType = match.Groups[1].Value;
}
}
traceInfo.ClientAppId = request.Headers["ClientAppId"];
}
//请求内容大小
if (traceInfo.TraceItems.RequestSize)
{
long value;
if (long.TryParse(request.Headers["Content-Length"], out value))
traceInfo.RequestSize = value;
}
if (traceInfo.TraceItems.RawUrl)
{
traceInfo.RawUrl = request.RawUrl;
traceInfo.HttpMethod = request.HttpMethod;
}
if (traceInfo.TraceItems.ResponseSize)
response.Filter = new ResponseFilter(response.Filter, traceInfo); //响应内容大小
if (traceInfo.TraceItems.ClientIP)
traceInfo.ClientIP = IPHelper.GetClientIP(); //客户端IP
traceContext.TraceInfo = traceInfo;
}
catch
{ }
}
