Mercurial > hg > orthanc
annotate OrthancFramework/Sources/MetricsRegistry.cpp @ 5429:d40ac28b9702
News: thanks to James Addison
author | Alain Mazy <am@osimis.io> |
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date | Fri, 17 Nov 2023 13:56:13 +0100 |
parents | f41e1f635c4d |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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7 * |
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8 * This program is free software: you can redistribute it and/or |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, but |
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
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21 **/ |
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22 |
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23 |
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24 #include "PrecompiledHeaders.h" |
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25 #include "MetricsRegistry.h" |
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26 |
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27 #include "ChunkedBuffer.h" |
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28 #include "Compatibility.h" |
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29 #include "OrthancException.h" |
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30 |
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31 #include <boost/math/special_functions/round.hpp> |
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32 |
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33 namespace Orthanc |
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34 { |
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35 static const boost::posix_time::ptime GetNow() |
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36 { |
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37 return boost::posix_time::microsec_clock::universal_time(); |
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38 } |
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39 |
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40 namespace |
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41 { |
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42 template <typename T> |
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43 class TimestampedValue : public boost::noncopyable |
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44 { |
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45 private: |
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46 boost::posix_time::ptime time_; |
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47 bool hasValue_; |
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48 T value_; |
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49 |
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50 void SetValue(const T& value, |
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51 const boost::posix_time::ptime& now) |
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52 { |
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53 hasValue_ = true; |
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54 value_ = value; |
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55 time_ = now; |
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56 } |
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57 |
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58 bool IsLargerOverPeriod(const T& value, |
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59 int duration, |
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60 const boost::posix_time::ptime& now) const |
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61 { |
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62 if (hasValue_) |
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63 { |
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64 return (value > value_ || |
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65 (now - time_).total_seconds() > duration /* old value has expired */); |
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66 } |
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67 else |
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68 { |
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69 return true; // No value yet |
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70 } |
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71 } |
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72 |
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73 bool IsSmallerOverPeriod(const T& value, |
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74 int duration, |
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75 const boost::posix_time::ptime& now) const |
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76 { |
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77 if (hasValue_) |
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78 { |
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79 return (value < value_ || |
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80 (now - time_).total_seconds() > duration /* old value has expired */); |
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81 } |
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82 else |
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83 { |
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84 return true; // No value yet |
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85 } |
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86 } |
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87 |
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88 public: |
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89 explicit TimestampedValue() : |
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90 hasValue_(false), |
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91 value_(0) |
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92 { |
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93 } |
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94 |
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95 void Update(const T& value, |
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96 const MetricsUpdatePolicy& policy) |
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97 { |
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98 const boost::posix_time::ptime now = GetNow(); |
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99 |
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100 switch (policy) |
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101 { |
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102 case MetricsUpdatePolicy_Directly: |
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103 SetValue(value, now); |
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104 break; |
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105 |
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106 case MetricsUpdatePolicy_MaxOver10Seconds: |
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107 if (IsLargerOverPeriod(value, 10, now)) |
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108 { |
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109 SetValue(value, now); |
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110 } |
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111 break; |
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112 |
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113 case MetricsUpdatePolicy_MaxOver1Minute: |
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114 if (IsLargerOverPeriod(value, 60, now)) |
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115 { |
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116 SetValue(value, now); |
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117 } |
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118 break; |
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119 |
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120 case MetricsUpdatePolicy_MinOver10Seconds: |
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121 if (IsSmallerOverPeriod(value, 10, now)) |
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122 { |
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123 SetValue(value, now); |
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124 } |
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125 break; |
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126 |
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127 case MetricsUpdatePolicy_MinOver1Minute: |
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128 if (IsSmallerOverPeriod(value, 60, now)) |
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129 { |
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130 SetValue(value, now); |
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131 } |
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132 break; |
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133 |
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134 default: |
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135 throw OrthancException(ErrorCode_NotImplemented); |
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136 } |
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137 } |
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138 |
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139 void Increment(const T& delta) |
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140 { |
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141 if (hasValue_) |
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142 { |
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143 value_ += delta; |
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144 } |
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145 else |
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146 { |
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147 value_ = delta; |
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148 } |
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149 } |
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150 |
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151 bool HasValue() const |
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152 { |
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153 return hasValue_; |
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154 } |
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155 |
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156 const boost::posix_time::ptime& GetTime() const |
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157 { |
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158 if (hasValue_) |
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159 { |
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160 return time_; |
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161 } |
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162 else |
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163 { |
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164 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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165 } |
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166 } |
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167 |
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168 const T& GetValue() const |
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169 { |
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170 if (hasValue_) |
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171 { |
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172 return value_; |
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173 } |
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174 else |
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175 { |
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176 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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177 } |
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178 } |
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179 }; |
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180 } |
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181 |
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182 |
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renamed MetricsType as MetricsUpdate to clarify
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diff
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|
183 class MetricsRegistry::Item : public boost::noncopyable |
3174
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184 { |
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|
185 private: |
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186 MetricsUpdatePolicy policy_; |
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187 |
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188 public: |
5344 | 189 explicit Item(MetricsUpdatePolicy policy) : |
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190 policy_(policy) |
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191 { |
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|
192 } |
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193 |
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194 virtual ~Item() |
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195 { |
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|
196 } |
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|
197 |
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|
198 MetricsUpdatePolicy GetPolicy() const |
3174
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|
199 { |
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200 return policy_; |
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201 } |
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202 |
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|
203 virtual void UpdateFloat(float value) = 0; |
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204 |
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|
205 virtual void UpdateInteger(int64_t value) = 0; |
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206 |
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|
207 virtual void IncrementInteger(int64_t delta) = 0; |
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208 |
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|
209 virtual MetricsDataType GetDataType() const = 0; |
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210 |
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|
211 virtual bool HasValue() const = 0; |
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212 |
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|
213 virtual const boost::posix_time::ptime& GetTime() const = 0; |
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214 |
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|
215 virtual std::string FormatValue() const = 0; |
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216 }; |
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217 |
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218 |
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|
219 class MetricsRegistry::FloatItem : public Item |
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220 { |
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221 private: |
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Metrics can be stored either as floating-point numbers, or as integers
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222 TimestampedValue<float> value_; |
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223 |
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224 public: |
5344 | 225 explicit FloatItem(MetricsUpdatePolicy policy) : |
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226 Item(policy) |
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227 { |
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228 } |
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229 |
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230 virtual void UpdateFloat(float value) ORTHANC_OVERRIDE |
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231 { |
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232 value_.Update(value, GetPolicy()); |
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233 } |
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234 |
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235 virtual void UpdateInteger(int64_t value) ORTHANC_OVERRIDE |
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236 { |
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237 value_.Update(static_cast<float>(value), GetPolicy()); |
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238 } |
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239 |
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240 virtual void IncrementInteger(int64_t delta) ORTHANC_OVERRIDE |
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241 { |
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242 value_.Increment(static_cast<float>(delta)); |
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243 } |
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244 |
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245 virtual MetricsDataType GetDataType() const ORTHANC_OVERRIDE |
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246 { |
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247 return MetricsDataType_Float; |
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248 } |
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249 |
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250 virtual bool HasValue() const ORTHANC_OVERRIDE |
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251 { |
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252 return value_.HasValue(); |
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253 } |
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254 |
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255 virtual const boost::posix_time::ptime& GetTime() const ORTHANC_OVERRIDE |
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256 { |
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257 return value_.GetTime(); |
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258 } |
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259 |
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260 virtual std::string FormatValue() const ORTHANC_OVERRIDE |
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261 { |
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262 return boost::lexical_cast<std::string>(value_.GetValue()); |
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263 } |
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264 }; |
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265 |
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266 |
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267 class MetricsRegistry::IntegerItem : public Item |
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268 { |
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269 private: |
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270 TimestampedValue<int64_t> value_; |
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271 |
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272 public: |
5344 | 273 explicit IntegerItem(MetricsUpdatePolicy policy) : |
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274 Item(policy) |
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275 { |
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276 } |
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277 |
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278 virtual void UpdateFloat(float value) ORTHANC_OVERRIDE |
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279 { |
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280 value_.Update(boost::math::llround(value), GetPolicy()); |
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281 } |
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282 |
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283 virtual void UpdateInteger(int64_t value) ORTHANC_OVERRIDE |
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284 { |
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285 value_.Update(value, GetPolicy()); |
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286 } |
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287 |
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288 virtual void IncrementInteger(int64_t delta) ORTHANC_OVERRIDE |
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289 { |
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290 value_.Increment(delta); |
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291 } |
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292 |
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293 virtual MetricsDataType GetDataType() const ORTHANC_OVERRIDE |
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294 { |
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295 return MetricsDataType_Integer; |
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296 } |
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297 |
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298 virtual bool HasValue() const ORTHANC_OVERRIDE |
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299 { |
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300 return value_.HasValue(); |
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301 } |
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302 |
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303 virtual const boost::posix_time::ptime& GetTime() const ORTHANC_OVERRIDE |
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304 { |
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305 return value_.GetTime(); |
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306 } |
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307 |
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308 virtual std::string FormatValue() const ORTHANC_OVERRIDE |
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309 { |
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310 return boost::lexical_cast<std::string>(value_.GetValue()); |
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311 } |
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312 }; |
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313 |
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314 |
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315 MetricsRegistry::~MetricsRegistry() |
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316 { |
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317 for (Content::iterator it = content_.begin(); it != content_.end(); ++it) |
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318 { |
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319 assert(it->second != NULL); |
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320 delete it->second; |
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321 } |
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322 } |
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323 |
4300 | 324 bool MetricsRegistry::IsEnabled() const |
325 { | |
326 return enabled_; | |
327 } | |
328 | |
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329 |
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330 void MetricsRegistry::SetEnabled(bool enabled) |
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331 { |
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332 boost::mutex::scoped_lock lock(mutex_); |
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333 enabled_ = enabled; |
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334 } |
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335 |
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336 |
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337 void MetricsRegistry::Register(const std::string& name, |
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338 MetricsUpdatePolicy policy, |
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339 MetricsDataType type) |
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340 { |
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341 boost::mutex::scoped_lock lock(mutex_); |
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342 |
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343 if (content_.find(name) != content_.end()) |
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344 { |
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345 throw OrthancException(ErrorCode_BadSequenceOfCalls, "Cannot register twice the same metrics: " + name); |
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346 } |
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347 else |
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348 { |
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349 GetItemInternal(name, policy, type); |
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350 } |
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351 } |
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352 |
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353 |
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354 MetricsRegistry::Item& MetricsRegistry::GetItemInternal(const std::string& name, |
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355 MetricsUpdatePolicy policy, |
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356 MetricsDataType type) |
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357 { |
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358 Content::iterator found = content_.find(name); |
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359 |
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360 if (found == content_.end()) |
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361 { |
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362 Item* item = NULL; |
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363 |
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364 switch (type) |
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365 { |
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366 case MetricsDataType_Float: |
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367 item = new FloatItem(policy); |
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368 break; |
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369 |
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370 case MetricsDataType_Integer: |
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371 item = new IntegerItem(policy); |
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372 break; |
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373 |
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374 default: |
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375 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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376 } |
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377 |
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378 content_[name] = item; |
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379 return *item; |
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380 } |
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381 else |
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382 { |
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383 assert(found->second != NULL); |
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384 return *found->second; |
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385 } |
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386 } |
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387 |
4300 | 388 MetricsRegistry::MetricsRegistry() : |
389 enabled_(true) | |
390 { | |
391 } | |
392 | |
393 | |
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394 void MetricsRegistry::SetFloatValue(const std::string& name, |
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395 float value, |
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396 MetricsUpdatePolicy policy) |
4300 | 397 { |
398 // Inlining to avoid loosing time if metrics are disabled | |
399 if (enabled_) | |
400 { | |
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401 boost::mutex::scoped_lock lock(mutex_); |
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402 GetItemInternal(name, policy, MetricsDataType_Float).UpdateFloat(value); |
4300 | 403 } |
404 } | |
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405 |
4300 | 406 |
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407 void MetricsRegistry::SetIntegerValue(const std::string &name, |
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408 int64_t value, |
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409 MetricsUpdatePolicy policy) |
4300 | 410 { |
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411 // Inlining to avoid loosing time if metrics are disabled |
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412 if (enabled_) |
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413 { |
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414 boost::mutex::scoped_lock lock(mutex_); |
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415 GetItemInternal(name, policy, MetricsDataType_Integer).UpdateInteger(value); |
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416 } |
4300 | 417 } |
418 | |
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419 |
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420 void MetricsRegistry::IncrementIntegerValue(const std::string &name, |
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421 int64_t delta) |
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422 { |
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423 // Inlining to avoid loosing time if metrics are disabled |
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424 if (enabled_) |
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425 { |
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426 boost::mutex::scoped_lock lock(mutex_); |
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427 GetItemInternal(name, MetricsUpdatePolicy_Directly, MetricsDataType_Integer).IncrementInteger(delta); |
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428 } |
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429 } |
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430 |
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431 |
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432 MetricsUpdatePolicy MetricsRegistry::GetUpdatePolicy(const std::string& metrics) |
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433 { |
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434 boost::mutex::scoped_lock lock(mutex_); |
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435 |
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436 Content::const_iterator found = content_.find(metrics); |
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437 |
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438 if (found == content_.end()) |
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439 { |
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440 throw OrthancException(ErrorCode_InexistentItem); |
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441 } |
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442 else |
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443 { |
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444 assert(found->second != NULL); |
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445 return found->second->GetPolicy(); |
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446 } |
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447 } |
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448 |
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449 |
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450 MetricsDataType MetricsRegistry::GetDataType(const std::string& metrics) |
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451 { |
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452 boost::mutex::scoped_lock lock(mutex_); |
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453 |
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454 Content::const_iterator found = content_.find(metrics); |
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455 |
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456 if (found == content_.end()) |
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457 { |
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458 throw OrthancException(ErrorCode_InexistentItem); |
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459 } |
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460 else |
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461 { |
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462 assert(found->second != NULL); |
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463 return found->second->GetDataType(); |
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464 } |
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changeset
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465 } |
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diff
changeset
|
466 |
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diff
changeset
|
467 |
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468 void MetricsRegistry::ExportPrometheusText(std::string& s) |
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469 { |
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470 // https://www.boost.org/doc/libs/1_69_0/doc/html/date_time/examples.html#date_time.examples.seconds_since_epoch |
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471 static const boost::posix_time::ptime EPOCH(boost::gregorian::date(1970, 1, 1)); |
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472 |
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473 boost::mutex::scoped_lock lock(mutex_); |
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474 |
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475 s.clear(); |
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476 |
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477 if (!enabled_) |
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478 { |
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479 return; |
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480 } |
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481 |
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482 ChunkedBuffer buffer; |
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483 |
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484 for (Content::const_iterator it = content_.begin(); |
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485 it != content_.end(); ++it) |
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486 { |
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487 assert(it->second != NULL); |
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488 |
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489 if (it->second->HasValue()) |
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490 { |
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491 boost::posix_time::time_duration diff = it->second->GetTime() - EPOCH; |
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492 |
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493 std::string line = (it->first + " " + |
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494 it->second->FormatValue() + " " + |
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495 boost::lexical_cast<std::string>(diff.total_milliseconds()) + "\n"); |
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496 |
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497 buffer.AddChunk(line); |
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498 } |
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499 } |
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500 |
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501 buffer.Flatten(s); |
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502 } |
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503 |
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504 |
4300 | 505 MetricsRegistry::SharedMetrics::SharedMetrics(MetricsRegistry ®istry, |
506 const std::string &name, | |
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507 MetricsUpdatePolicy policy) : |
4300 | 508 registry_(registry), |
509 name_(name), | |
510 value_(0) | |
511 { | |
512 } | |
513 | |
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514 void MetricsRegistry::SharedMetrics::Add(int64_t delta) |
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515 { |
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516 boost::mutex::scoped_lock lock(mutex_); |
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517 value_ += delta; |
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518 registry_.SetIntegerValue(name_, value_); |
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519 } |
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520 |
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521 |
4300 | 522 MetricsRegistry::ActiveCounter::ActiveCounter(MetricsRegistry::SharedMetrics &metrics) : |
523 metrics_(metrics) | |
524 { | |
525 metrics_.Add(1); | |
526 } | |
527 | |
528 MetricsRegistry::ActiveCounter::~ActiveCounter() | |
529 { | |
530 metrics_.Add(-1); | |
531 } | |
532 | |
533 | |
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534 void MetricsRegistry::Timer::Start() |
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535 { |
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536 if (registry_.IsEnabled()) |
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537 { |
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538 active_ = true; |
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539 start_ = GetNow(); |
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540 } |
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541 else |
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542 { |
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543 active_ = false; |
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544 } |
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545 } |
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546 |
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547 |
4300 | 548 MetricsRegistry::Timer::Timer(MetricsRegistry ®istry, |
549 const std::string &name) : | |
550 registry_(registry), | |
551 name_(name), | |
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552 policy_(MetricsUpdatePolicy_MaxOver10Seconds) |
4300 | 553 { |
554 Start(); | |
555 } | |
556 | |
557 | |
558 MetricsRegistry::Timer::Timer(MetricsRegistry ®istry, | |
559 const std::string &name, | |
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560 MetricsUpdatePolicy policy) : |
4300 | 561 registry_(registry), |
562 name_(name), | |
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563 policy_(policy) |
4300 | 564 { |
565 Start(); | |
566 } | |
567 | |
568 | |
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569 MetricsRegistry::Timer::~Timer() |
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570 { |
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571 if (active_) |
4300 | 572 { |
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573 boost::posix_time::time_duration diff = GetNow() - start_; |
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574 registry_.SetIntegerValue(name_, static_cast<int64_t>(diff.total_milliseconds()), policy_); |
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575 } |
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576 } |
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577 } |