Mercurial > hg > orthanc
annotate OrthancFramework/Sources/MetricsRegistry.cpp @ 4792:434843934307 storage-cache
Added a StorageCache in the StorageAccessor
author | Alain Mazy <am@osimis.io> |
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date | Thu, 30 Sep 2021 12:14:19 +0200 |
parents | d9473bd5ed43 |
children | 7053502fbf97 |
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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) 2017-2021 Osimis S.A., Belgium |
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6 * |
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7 * This program is free software: you can redistribute it and/or |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Lesser General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
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20 **/ |
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21 |
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22 |
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23 #include "PrecompiledHeaders.h" |
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24 #include "MetricsRegistry.h" |
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25 |
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26 #include "ChunkedBuffer.h" |
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27 #include "Compatibility.h" |
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28 #include "OrthancException.h" |
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29 |
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30 namespace Orthanc |
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31 { |
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32 static const boost::posix_time::ptime GetNow() |
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33 { |
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34 return boost::posix_time::microsec_clock::universal_time(); |
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35 } |
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36 |
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37 class MetricsRegistry::Item |
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38 { |
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39 private: |
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40 MetricsType type_; |
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41 boost::posix_time::ptime time_; |
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42 bool hasValue_; |
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43 float value_; |
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44 |
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45 void Touch(float value, |
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46 const boost::posix_time::ptime& now) |
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47 { |
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48 hasValue_ = true; |
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49 value_ = value; |
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50 time_ = now; |
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51 } |
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52 |
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53 void Touch(float value) |
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54 { |
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55 Touch(value, GetNow()); |
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56 } |
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57 |
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58 void UpdateMax(float value, |
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59 int duration) |
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60 { |
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61 if (hasValue_) |
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62 { |
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63 const boost::posix_time::ptime now = GetNow(); |
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64 |
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65 if (value > value_ || |
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66 (now - time_).total_seconds() > duration) |
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67 { |
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68 Touch(value, now); |
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69 } |
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70 } |
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71 else |
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72 { |
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73 Touch(value); |
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74 } |
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75 } |
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76 |
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77 void UpdateMin(float value, |
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78 int duration) |
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79 { |
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80 if (hasValue_) |
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81 { |
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82 const boost::posix_time::ptime now = GetNow(); |
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83 |
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84 if (value < value_ || |
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85 (now - time_).total_seconds() > duration) |
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86 { |
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87 Touch(value, now); |
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88 } |
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89 } |
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90 else |
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91 { |
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92 Touch(value); |
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93 } |
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94 } |
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95 |
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96 public: |
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97 explicit Item(MetricsType type) : |
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98 type_(type), |
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99 hasValue_(false), |
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100 value_(0) |
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101 { |
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102 } |
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103 |
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104 MetricsType GetType() const |
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105 { |
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106 return type_; |
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107 } |
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108 |
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109 void Update(float value) |
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110 { |
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111 switch (type_) |
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112 { |
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113 case MetricsType_Default: |
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114 Touch(value); |
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115 break; |
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116 |
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117 case MetricsType_MaxOver10Seconds: |
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118 UpdateMax(value, 10); |
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119 break; |
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120 |
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121 case MetricsType_MaxOver1Minute: |
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122 UpdateMax(value, 60); |
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123 break; |
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124 |
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125 case MetricsType_MinOver10Seconds: |
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126 UpdateMin(value, 10); |
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127 break; |
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128 |
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129 case MetricsType_MinOver1Minute: |
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130 UpdateMin(value, 60); |
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131 break; |
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132 |
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133 default: |
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134 throw OrthancException(ErrorCode_NotImplemented); |
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135 } |
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136 } |
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137 |
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138 bool HasValue() const |
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139 { |
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140 return hasValue_; |
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141 } |
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142 |
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143 const boost::posix_time::ptime& GetTime() const |
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144 { |
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145 if (hasValue_) |
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146 { |
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147 return time_; |
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148 } |
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149 else |
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150 { |
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151 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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152 } |
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153 } |
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154 |
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155 float GetValue() const |
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156 { |
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157 if (hasValue_) |
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158 { |
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159 return value_; |
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160 } |
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161 else |
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162 { |
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163 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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164 } |
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165 } |
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166 }; |
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167 |
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168 |
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169 MetricsRegistry::~MetricsRegistry() |
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170 { |
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171 for (Content::iterator it = content_.begin(); it != content_.end(); ++it) |
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172 { |
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173 assert(it->second != NULL); |
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174 delete it->second; |
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175 } |
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176 } |
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177 |
4300 | 178 bool MetricsRegistry::IsEnabled() const |
179 { | |
180 return enabled_; | |
181 } | |
182 | |
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183 |
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184 void MetricsRegistry::SetEnabled(bool enabled) |
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185 { |
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186 boost::mutex::scoped_lock lock(mutex_); |
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187 enabled_ = enabled; |
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188 } |
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189 |
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190 |
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191 void MetricsRegistry::Register(const std::string& name, |
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192 MetricsType type) |
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193 { |
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194 boost::mutex::scoped_lock lock(mutex_); |
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195 |
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196 Content::iterator found = content_.find(name); |
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197 |
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198 if (found == content_.end()) |
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199 { |
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200 content_[name] = new Item(type); |
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201 } |
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202 else |
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203 { |
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204 assert(found->second != NULL); |
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205 |
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206 // This metrics already exists: Only recreate it if there is a |
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207 // mismatch in the type of metrics |
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208 if (found->second->GetType() != type) |
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209 { |
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210 delete found->second; |
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211 found->second = new Item(type); |
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212 } |
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213 } |
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214 } |
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215 |
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216 void MetricsRegistry::SetValueInternal(const std::string& name, |
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217 float value, |
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218 MetricsType type) |
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219 { |
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220 boost::mutex::scoped_lock lock(mutex_); |
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221 |
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222 Content::iterator found = content_.find(name); |
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223 |
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224 if (found == content_.end()) |
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225 { |
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226 std::unique_ptr<Item> item(new Item(type)); |
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227 item->Update(value); |
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228 content_[name] = item.release(); |
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229 } |
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230 else |
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231 { |
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232 assert(found->second != NULL); |
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233 found->second->Update(value); |
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234 } |
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235 } |
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236 |
4300 | 237 MetricsRegistry::MetricsRegistry() : |
238 enabled_(true) | |
239 { | |
240 } | |
241 | |
242 | |
243 void MetricsRegistry::SetValue(const std::string &name, | |
244 float value, | |
245 MetricsType type) | |
246 { | |
247 // Inlining to avoid loosing time if metrics are disabled | |
248 if (enabled_) | |
249 { | |
250 SetValueInternal(name, value, type); | |
251 } | |
252 } | |
253 | |
254 | |
255 void MetricsRegistry::SetValue(const std::string &name, float value) | |
256 { | |
257 SetValue(name, value, MetricsType_Default); | |
258 } | |
259 | |
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260 |
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261 MetricsType MetricsRegistry::GetMetricsType(const std::string& name) |
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262 { |
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263 boost::mutex::scoped_lock lock(mutex_); |
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264 |
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265 Content::const_iterator found = content_.find(name); |
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266 |
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267 if (found == content_.end()) |
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268 { |
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269 throw OrthancException(ErrorCode_InexistentItem); |
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270 } |
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271 else |
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272 { |
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273 assert(found->second != NULL); |
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274 return found->second->GetType(); |
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275 } |
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276 } |
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277 |
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278 |
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279 void MetricsRegistry::ExportPrometheusText(std::string& s) |
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280 { |
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281 // 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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282 static const boost::posix_time::ptime EPOCH(boost::gregorian::date(1970, 1, 1)); |
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283 |
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284 boost::mutex::scoped_lock lock(mutex_); |
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285 |
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286 s.clear(); |
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287 |
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288 if (!enabled_) |
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289 { |
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290 return; |
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291 } |
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292 |
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293 ChunkedBuffer buffer; |
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294 |
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295 for (Content::const_iterator it = content_.begin(); |
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296 it != content_.end(); ++it) |
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297 { |
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298 assert(it->second != NULL); |
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299 |
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300 if (it->second->HasValue()) |
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301 { |
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302 boost::posix_time::time_duration diff = it->second->GetTime() - EPOCH; |
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303 |
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304 std::string line = (it->first + " " + |
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305 boost::lexical_cast<std::string>(it->second->GetValue()) + " " + |
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306 boost::lexical_cast<std::string>(diff.total_milliseconds()) + "\n"); |
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307 |
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308 buffer.AddChunk(line); |
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309 } |
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310 } |
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311 |
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312 buffer.Flatten(s); |
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313 } |
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314 |
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315 |
4300 | 316 MetricsRegistry::SharedMetrics::SharedMetrics(MetricsRegistry ®istry, |
317 const std::string &name, | |
318 MetricsType type) : | |
319 registry_(registry), | |
320 name_(name), | |
321 value_(0) | |
322 { | |
323 } | |
324 | |
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325 void MetricsRegistry::SharedMetrics::Add(float delta) |
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326 { |
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327 boost::mutex::scoped_lock lock(mutex_); |
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328 value_ += delta; |
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329 registry_.SetValue(name_, value_); |
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330 } |
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331 |
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332 |
4300 | 333 MetricsRegistry::ActiveCounter::ActiveCounter(MetricsRegistry::SharedMetrics &metrics) : |
334 metrics_(metrics) | |
335 { | |
336 metrics_.Add(1); | |
337 } | |
338 | |
339 MetricsRegistry::ActiveCounter::~ActiveCounter() | |
340 { | |
341 metrics_.Add(-1); | |
342 } | |
343 | |
344 | |
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345 void MetricsRegistry::Timer::Start() |
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346 { |
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347 if (registry_.IsEnabled()) |
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348 { |
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349 active_ = true; |
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350 start_ = GetNow(); |
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351 } |
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352 else |
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353 { |
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354 active_ = false; |
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355 } |
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356 } |
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357 |
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358 |
4300 | 359 MetricsRegistry::Timer::Timer(MetricsRegistry ®istry, |
360 const std::string &name) : | |
361 registry_(registry), | |
362 name_(name), | |
363 type_(MetricsType_MaxOver10Seconds) | |
364 { | |
365 Start(); | |
366 } | |
367 | |
368 | |
369 MetricsRegistry::Timer::Timer(MetricsRegistry ®istry, | |
370 const std::string &name, | |
371 MetricsType type) : | |
372 registry_(registry), | |
373 name_(name), | |
374 type_(type) | |
375 { | |
376 Start(); | |
377 } | |
378 | |
379 | |
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380 MetricsRegistry::Timer::~Timer() |
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381 { |
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382 if (active_) |
4300 | 383 { |
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384 boost::posix_time::time_duration diff = GetNow() - start_; |
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385 registry_.SetValue( |
4300 | 386 name_, static_cast<float>(diff.total_milliseconds()), type_); |
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387 } |
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388 } |
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389 } |