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1 using System;
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2 using System.Diagnostics;
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3 using System.IO;
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4
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5 namespace Implab.Diagnostics {
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6 public class SimpleTraceListener : TextWriterTraceListener {
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7 public SimpleTraceListener() {
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8 }
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9
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10 public SimpleTraceListener(Stream stream) : base(stream) {
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11 }
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12
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13 public SimpleTraceListener(TextWriter writer) : base(writer) {
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14 }
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15
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16 public SimpleTraceListener(string fileName) : base(fileName) {
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17 }
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18
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19 public SimpleTraceListener(Stream stream, string name) : base(stream, name) {
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20 }
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21
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22 public SimpleTraceListener(TextWriter writer, string name) : base(writer, name) {
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23 }
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24
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25 public SimpleTraceListener(string fileName, string name) : base(fileName, name) {
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26 }
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27
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28 public override void TraceData(TraceEventCache eventCache, string source, TraceEventType eventType, int id, object data) {
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29 switch (id) {
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30 case TraceEventCodes.StartLogicalOperation:
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31 TraceEvent(eventCache, source, eventType, id, "+{0}", data);
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32 break;
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33 case TraceEventCodes.StopLogicalOperation:
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34 TraceEvent(eventCache, source, eventType, id, FormatStopLogicalOperation(data));
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35 break;
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36 default:
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37 TraceEvent(eventCache, source, eventType, id, data?.ToString());
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38 break;
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39 }
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40 }
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41
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42 string FormatStopLogicalOperation(object data) {
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43 if (data is LogicalOperation op) {
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44 return string.Format("-{0} ({1})", op, FormatTimespan(op.OperationStopwatch.Elapsed));
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45 } else {
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46 return data?.ToString();
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47 }
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48 }
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49
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50 string FormatTimespan(TimeSpan value) {
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51 if (value.TotalSeconds < 10) {
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52 return value.Milliseconds.ToString() + "ms";
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53 } else if (value.TotalSeconds < 30) {
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54 return string.Format("{0:0.###}s", value.TotalSeconds);
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55 } else {
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56 return value.ToString();
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57 }
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58 }
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59
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60 public override void TraceData(TraceEventCache eventCache, string source, TraceEventType eventType, int id, params object[] data) {
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61 var prev = IndentLevel;
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62 IndentLevel += eventCache.LogicalOperationStack.Count;
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63 try {
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64 base.TraceData(eventCache, source, eventType, id, data);
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65 } finally {
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66 IndentLevel = prev;
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67 }
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68 }
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69
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70 public override void TraceEvent(TraceEventCache eventCache, string source, TraceEventType eventType, int id) {
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71 var prev = IndentLevel;
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72 IndentLevel += eventCache.LogicalOperationStack.Count;
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73 try {
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74 base.TraceEvent(eventCache, source, eventType, id);
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75 } finally {
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76 IndentLevel = prev;
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77 }
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78 }
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79
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80 public override void TraceEvent(TraceEventCache eventCache, string source, TraceEventType eventType, int id, string format, params object[] args) {
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81 TraceEvent(eventCache, source, eventType, id, String.Format(format, args));
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82 }
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83
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84 public override void TraceEvent(TraceEventCache eventCache, string source, TraceEventType eventType, int id, string message) {
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85 var prev = IndentLevel;
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86 IndentLevel += eventCache.LogicalOperationStack.Count;
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87 try {
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88 LogicalOperation operation = null;
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89 if (eventCache.LogicalOperationStack.Count > 0)
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90 operation = eventCache.LogicalOperationStack.Peek() as LogicalOperation;
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91
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92 if (operation != null) {
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93 base.TraceData(eventCache, source, eventType, id, FormatTimespan(operation.OperationStopwatch.Elapsed) + ": " + message);
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94 } else {
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95 base.TraceData(eventCache, source, eventType, id, message);
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96 }
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97 } finally {
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98 IndentLevel = prev;
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99 }
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100 }
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101
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102 public override void TraceTransfer(TraceEventCache eventCache, string source, int id, string message, Guid relatedActivityId) {
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103 var prev = IndentLevel;
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104 IndentLevel += eventCache.LogicalOperationStack.Count;
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105 try {
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106 base.TraceTransfer(eventCache, source, id, message, relatedActivityId);
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107 } finally {
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108 IndentLevel = prev;
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109 }
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110 }
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111
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112
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113 }
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114 } |
