Beispiel #1
0
        private IDisposable WriteStartElement(string title, IDictionary <string, string> attribs)
        {
            try
            {
                var info = new TraceInfo(title, attribs);

                var ensureMaxXmlFiles = false;
                if (String.IsNullOrEmpty(_file))
                {
                    ensureMaxXmlFiles = true;

                    // generate trace file name base on attribs
                    _file = GenerateFileName(info);
                }

                var strb = new StringBuilder();

                if (_isStartElement)
                {
                    strb.AppendLine(">");
                }

                strb.Append(new String(' ', _infos.Count * 2));
                strb.AppendFormat("<step title=\"{0}\" ", XmlUtility.EscapeXmlText(title));
                strb.AppendFormat("date=\"{0}\" ", info.StartTime.ToString("yyyy-MM-ddTHH:mm:ss.fff"));
                if (_infos.Count == 0)
                {
                    strb.AppendFormat("instance=\"{0}\" ", InstanceIdUtility.GetShortInstanceId());
                }

                foreach (var attrib in attribs)
                {
                    if (TraceExtensions.IsNonDisplayableAttribute(attrib.Key))
                    {
                        continue;
                    }

                    strb.AppendFormat("{0}=\"{1}\" ", attrib.Key, XmlUtility.EscapeXmlText(attrib.Value));
                }

                FileSystemHelpers.AppendAllTextToFile(_file, strb.ToString());
                _infos.Push(info);
                _isStartElement = true;

                if (ensureMaxXmlFiles)
                {
                    EnsureMaxXmlFiles();
                }

                return(new DisposableAction(() => WriteEndTrace()));
            }
            catch (Exception ex)
            {
                WriteUnexpectedException(ex);
            }

            return(DisposableAction.Noop);
        }
Beispiel #2
0
        private IDisposable WriteStartElement(string title, IDictionary<string, string> attribs)
        {
            try
            {
                var info = new TraceInfo(title, attribs);

                var ensureMaxXmlFiles = false;
                if (String.IsNullOrEmpty(_file))
                {
                    ensureMaxXmlFiles = true;

                    // generate trace file name base on attribs
                    _file = GenerateFileName(info);
                }

                var strb = new StringBuilder();

                if (_isStartElement)
                {
                    strb.AppendLine(">");
                }

                strb.Append(new String(' ', _infos.Count * 2));
                strb.AppendFormat("<step title=\"{0}\" ", XmlUtility.EscapeXmlText(title));
                strb.AppendFormat("date=\"{0}\" ", info.StartTime.ToString("yyyy-MM-ddTHH:mm:ss.fff"));
                if (_infos.Count == 0)
                {
                    strb.AppendFormat("instance=\"{0}\" ", InstanceIdUtility.GetShortInstanceId());
                }

                foreach (var attrib in attribs)
                {
                    if (TraceExtensions.IsNonDisplayableAttribute(attrib.Key))
                    {
                        continue;
                    }

                    strb.AppendFormat("{0}=\"{1}\" ", attrib.Key, XmlUtility.EscapeXmlText(attrib.Value));
                }

                FileSystemHelpers.AppendAllTextToFile(_file, strb.ToString());
                _infos.Push(info);
                _isStartElement = true;

                if (ensureMaxXmlFiles)
                {
                    EnsureMaxXmlFiles();
                }

                return new DisposableAction(() => WriteEndTrace());
            }
            catch (Exception ex)
            {
                WriteUnexpectedException(ex);
            }

            return DisposableAction.Noop;
        }
Beispiel #3
0
        public static bool ShouldTrace(TraceLevel level, TraceInfo info, int statusCode)
        {
            // if SCM_TRACE_LEVEL is set to 4 (verbose), always trace.
            if (level >= TraceLevel.Verbose)
            {
                return(true);
            }

            // for api taking long time (>10s), always trace.
            if (DateTime.UtcNow - info.StartTime >= ElapsedThreshold)
            {
                return(true);
            }

            string type;
            string method;
            string path;

            if (!info.Attributes.TryGetValue("type", out type) ||
                !info.Attributes.TryGetValue("method", out method) ||
                !info.Attributes.TryGetValue("url", out path))
            {
                return(true);
            }

            // trace non get request
            if (!String.Equals("request", type, StringComparison.OrdinalIgnoreCase) ||
                !String.Equals("GET", method, StringComparison.OrdinalIgnoreCase))
            {
                return(true);
            }

            // NotModified
            if (statusCode == 304)
            {
                return(false);
            }

            // non OK
            if (statusCode != 200)
            {
                return(true);
            }

            // filter out those that may be polled by portal.
            // remove query string
            path = path.Split('?')[0].TrimEnd('/');
            return(!TraceFilters.Any(filter => String.Equals(filter, path, StringComparison.OrdinalIgnoreCase)));
        }
Beispiel #4
0
        // such as <datetime>_<instance>_<salt>_get_<url>_<statusCode>.xml
        // sample: 2014-11-17T04-59-21_d10e51_366_GET_api-deployments_200.xml
        private string GenerateFileName(TraceInfo info)
        {
            var strb = new StringBuilder();

            // add salt to avoid collision
            // mathematically improbable for salt to overflow
            strb.AppendFormat("{0}_{1}_{2:000}",
                              info.StartTime.ToString("yyyy-MM-ddTHH-mm-ss"),
                              InstanceIdUtility.GetShortInstanceId(),
                              Interlocked.Increment(ref _salt) % 1000);

            if (info.Title == XmlTracer.IncomingRequestTrace)
            {
                var path = info.Attributes["url"].Split('?')[0].Trim('/');
                strb.AppendFormat("_{0}_{1}", info.Attributes["method"], path.ToSafeFileName());
            }
            else if (info.Title == XmlTracer.StartupRequestTrace)
            {
                var path = info.Attributes["url"].Split('?')[0].Trim('/');
                strb.AppendFormat("_Startup_{0}_{1}", info.Attributes["method"], path.ToSafeFileName());
            }
            else if (info.Title == XmlTracer.ProcessShutdownTrace)
            {
                strb.Append("_Shutdown");
            }
            else if (info.Title == XmlTracer.ExecutingExternalProcessTrace)
            {
                var path = info.Attributes["path"].Split('\\').Last();
                strb.AppendFormat("_{0}", path);
            }
            else if (string.Equals(XmlTracer.BackgroundTrace, info.Title, StringComparison.Ordinal))
            {
                var path = info.Attributes["url"].Split('?')[0].Trim('/');
                strb.AppendFormat("_Background_{0}_{1}", info.Attributes["method"], path.ToSafeFileName());
            }
            else if (!String.IsNullOrEmpty(info.Title))
            {
                strb.AppendFormat("_{0}", info.Title.ToSafeFileName());
            }

            strb.Append(PendingXml);

            return(Path.Combine(_path, strb.ToString()));
        }
Beispiel #5
0
        // such as <datetime>_<instance>_<salt>_get_<url>_<statusCode>.xml
        // sample: 2014-11-17T04-59-21_d10e51_366_GET_api-deployments_200.xml
        private string GenerateFileName(TraceInfo info)
        {
            var strb = new StringBuilder();

            // add salt to avoid collision
            // mathematically improbable for salt to overflow 
            strb.AppendFormat("{0}_{1}_{2:000}",
                info.StartTime.ToString("yyyy-MM-ddTHH-mm-ss"),
                InstanceIdUtility.GetShortInstanceId(),
                Interlocked.Increment(ref _salt) % 1000);

            if (info.Title == XmlTracer.IncomingRequestTrace)
            {
                var path = info.Attributes["url"].Split('?')[0].Trim('/');
                strb.AppendFormat("_{0}_{1}", info.Attributes["method"], path.ToSafeFileName());
            }
            else if (info.Title == XmlTracer.StartupRequestTrace)
            {
                var path = info.Attributes["url"].Split('?')[0].Trim('/');
                strb.AppendFormat("_Startup_{0}_{1}", info.Attributes["method"], path.ToSafeFileName());
            }
            else if (info.Title == XmlTracer.ProcessShutdownTrace)
            {
                strb.Append("_Shutdown");
            }
            else if (info.Title == XmlTracer.ExecutingExternalProcessTrace)
            {
                var path = info.Attributes["path"].Split('\\').Last();
                strb.AppendFormat("_{0}", path);
            }
            else if (string.Equals(XmlTracer.BackgroundTrace, info.Title, StringComparison.Ordinal))
            {
                var path = info.Attributes["url"].Split('?')[0].Trim('/');
                strb.AppendFormat("_Background_{0}_{1}", info.Attributes["method"], path.ToSafeFileName());
            }
            else if (!String.IsNullOrEmpty(info.Title))
            {
                strb.AppendFormat("_{0}", info.Title.ToSafeFileName());
            }

            strb.Append(PendingXml);

            return Path.Combine(_path, strb.ToString());
        }
Beispiel #6
0
        public static bool ShouldTrace(TraceLevel level, TraceInfo info, int statusCode)
        {
            // if SCM_TRACE_LEVEL is set to 4 (verbose), always trace.
            if (level >= TraceLevel.Verbose)
            {
                return true;
            }

            // for api taking long time (>10s), always trace.
            if (DateTime.UtcNow - info.StartTime >= ElapsedThreshold)
            {
                return true;
            }

            string type;
            string method;
            string path;
            if (!info.Attributes.TryGetValue("type", out type)
                || !info.Attributes.TryGetValue("method", out method)
                || !info.Attributes.TryGetValue("url", out path))
            {
                return true;
            }

            // trace non get request
            if (!String.Equals("request", type, StringComparison.OrdinalIgnoreCase)
                || !String.Equals("GET", method, StringComparison.OrdinalIgnoreCase))
            {
                return true;
            }

            // NotModified
            if (statusCode == 304)
            {
                return false;
            }

            // non OK
            if (statusCode != 200)
            {
                return true;
            }

            // filter out those that may be polled by portal.
            // remove query string
            path = path.Split('?')[0].TrimEnd('/');
            return !TraceFilters.Any(filter => String.Equals(filter, path, StringComparison.OrdinalIgnoreCase));
        }