Mercurial > hg > orthanc
annotate Core/Logging.cpp @ 1490:596927722403
support of --logdir by the internal logger
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 04 Aug 2015 14:04:48 +0200 |
| parents | 1389834e130f |
| children | a13581480b1f |
| rev | line source |
|---|---|
| 1485 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 5 * | |
| 6 * This program is free software: you can redistribute it and/or | |
| 7 * modify it under the terms of the GNU General Public License as | |
| 8 * published by the Free Software Foundation, either version 3 of the | |
| 9 * License, or (at your option) any later version. | |
| 10 * | |
| 11 * In addition, as a special exception, the copyright holders of this | |
| 12 * program give permission to link the code of its release with the | |
| 13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 14 * that use the same license as the "OpenSSL" library), and distribute | |
| 15 * the linked executables. You must obey the GNU General Public License | |
| 16 * in all respects for all of the code used other than "OpenSSL". If you | |
| 17 * modify file(s) with this exception, you may extend this exception to | |
| 18 * your version of the file(s), but you are not obligated to do so. If | |
| 19 * you do not wish to do so, delete this exception statement from your | |
| 20 * version. If you delete this exception statement from all source files | |
| 21 * in the program, then also delete it here. | |
| 22 * | |
| 23 * This program is distributed in the hope that it will be useful, but | |
| 24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 26 * General Public License for more details. | |
| 27 * | |
| 28 * You should have received a copy of the GNU General Public License | |
| 29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 30 **/ | |
| 31 | |
| 32 | |
| 33 #include "PrecompiledHeaders.h" | |
| 34 #include "Logging.h" | |
| 35 | |
| 1488 | 36 #if ORTHANC_ENABLE_LOGGING == 1 |
| 1485 | 37 |
| 1489 | 38 |
| 39 #if ORTHANC_ENABLE_GOOGLE_LOG == 1 | |
| 40 | |
| 41 /********************************************************* | |
| 42 * Wrapper around Google Log | |
| 43 *********************************************************/ | |
| 44 | |
| 1485 | 45 namespace Orthanc |
| 46 { | |
| 47 namespace Logging | |
| 48 { | |
| 49 void Initialize() | |
| 50 { | |
| 51 // Initialize Google's logging library. | |
| 52 FLAGS_logtostderr = true; | |
| 53 FLAGS_minloglevel = 1; // Do not print LOG(INFO) by default | |
| 54 FLAGS_v = 0; // Do not print trace-level VLOG(1) by default | |
| 55 | |
| 56 google::InitGoogleLogging("Orthanc"); | |
| 57 } | |
| 58 | |
| 59 void Finalize() | |
| 60 { | |
| 61 google::ShutdownGoogleLogging(); | |
| 62 } | |
| 63 | |
| 64 void EnableInfoLevel(bool enabled) | |
| 65 { | |
| 66 FLAGS_minloglevel = (enabled ? 0 : 1); | |
| 67 } | |
| 68 | |
| 69 void EnableTraceLevel(bool enabled) | |
| 70 { | |
| 71 if (enabled) | |
| 72 { | |
| 73 FLAGS_minloglevel = 0; | |
| 74 FLAGS_v = 1; | |
| 75 } | |
| 76 else | |
| 77 { | |
| 78 FLAGS_v = 0; | |
| 79 } | |
| 80 } | |
| 1489 | 81 |
| 82 void SetTargetFolder(const std::string& path) | |
| 83 { | |
| 84 FLAGS_logtostderr = false; | |
| 85 FLAGS_log_dir = path; | |
| 86 } | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 #else | |
| 91 | |
| 92 /********************************************************* | |
| 93 * Use internal logger, not Google Log | |
| 94 *********************************************************/ | |
| 95 | |
| 96 #include "OrthancException.h" | |
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97 #include "Toolbox.h" |
| 1489 | 98 |
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99 #include <fstream> |
| 1489 | 100 #include <boost/filesystem.hpp> |
| 101 #include <boost/thread.hpp> | |
| 102 | |
| 103 #if BOOST_HAS_DATE_TIME == 1 | |
| 104 # include <boost/date_time/posix_time/posix_time.hpp> | |
| 105 #else | |
| 106 # error Boost::date_time is required | |
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107 #endif |
| 1489 | 108 |
| 109 | |
| 110 namespace | |
| 111 { | |
| 112 struct NullStream : public std::ostream | |
| 113 { | |
| 114 NullStream() : std::ios(0), std::ostream(0) | |
| 115 { | |
| 116 } | |
| 117 }; | |
| 118 } | |
| 119 | |
| 120 | |
| 121 static boost::mutex mutex_; | |
| 122 static bool infoEnabled_ = false; | |
| 123 static bool traceEnabled_ = false; | |
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124 |
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125 static std::ostream* error_ = &std::cerr; |
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126 static std::ostream* warning_ = &std::cerr; |
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127 static std::ostream* info_ = &std::cerr; |
| 1489 | 128 static NullStream null_; |
| 129 | |
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130 static std::auto_ptr<std::ofstream> errorFile_; |
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131 static std::auto_ptr<std::ofstream> warningFile_; |
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132 static std::auto_ptr<std::ofstream> infoFile_; |
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133 |
| 1489 | 134 namespace Orthanc |
| 135 { | |
| 136 namespace Logging | |
| 137 { | |
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138 static void GetLogPath(boost::filesystem::path& log, |
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139 boost::filesystem::path& link, |
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140 const char* level, |
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141 const std::string& directory) |
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142 { |
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143 /** |
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144 From Google Log documentation: |
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145 |
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146 Unless otherwise specified, logs will be written to the filename |
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147 "<program name>.<hostname>.<user name>.log.<severity level>.", |
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148 followed by the date, time, and pid (you can't prevent the date, |
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149 time, and pid from being in the filename). |
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150 |
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151 In this implementation : "hostname" and "username" are not used |
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152 **/ |
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153 |
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154 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); |
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155 boost::filesystem::path root(directory); |
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156 boost::filesystem::path exe(Toolbox::GetPathToExecutable()); |
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157 |
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158 if (!boost::filesystem::exists(root) || |
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159 !boost::filesystem::is_directory(root)) |
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160 { |
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161 throw OrthancException(ErrorCode_CannotWriteFile); |
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162 } |
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163 |
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164 char date[64]; |
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165 sprintf(date, "%04d%02d%02d-%02d%02d%02d.%d", |
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166 static_cast<int>(now.date().year()), |
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167 now.date().month().as_number(), |
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168 now.date().day().as_number(), |
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169 now.time_of_day().hours(), |
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170 now.time_of_day().minutes(), |
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171 now.time_of_day().seconds(), |
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172 Toolbox::GetProcessId()); |
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173 |
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174 std::string programName = exe.filename().replace_extension("").string(); |
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175 |
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176 log = (root / (programName + ".log." + |
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177 std::string(level) + "." + |
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178 std::string(date))); |
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179 |
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180 link = (root / (programName + "." + std::string(level))); |
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181 } |
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182 |
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183 |
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184 static void PrepareLogFile(std::ostream*& stream, |
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185 std::auto_ptr<std::ofstream>& file, |
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186 const char* level, |
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187 const std::string& directory) |
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188 { |
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189 boost::filesystem::path log, link; |
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190 GetLogPath(log, link, level, directory); |
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191 |
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192 printf("[%s]\n", log.string().c_str()); |
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193 |
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194 #if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__))) |
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195 boost::filesystem::remove(link); |
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196 boost::filesystem::create_symlink(log.filename(), link); |
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197 #endif |
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198 |
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199 file.reset(new std::ofstream(log.c_str())); |
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200 stream = file.get(); |
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201 } |
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202 |
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203 |
| 1489 | 204 void Initialize() |
| 205 { | |
| 206 infoEnabled_ = false; | |
| 207 traceEnabled_ = false; | |
| 208 } | |
| 209 | |
| 210 void Finalize() | |
| 211 { | |
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212 errorFile_.reset(NULL); |
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213 warningFile_.reset(NULL); |
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214 infoFile_.reset(NULL); |
| 1489 | 215 } |
| 216 | |
| 217 void EnableInfoLevel(bool enabled) | |
| 218 { | |
| 219 boost::mutex::scoped_lock lock(mutex_); | |
| 220 infoEnabled_ = enabled; | |
| 221 } | |
| 222 | |
| 223 void EnableTraceLevel(bool enabled) | |
| 224 { | |
| 225 boost::mutex::scoped_lock lock(mutex_); | |
| 226 traceEnabled_ = enabled; | |
| 227 | |
| 228 if (enabled) | |
| 229 { | |
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230 // Also enable the "INFO" level when trace-level debugging is enabled |
| 1489 | 231 infoEnabled_ = true; |
| 232 } | |
| 233 } | |
| 234 | |
| 235 void SetTargetFolder(const std::string& path) | |
| 236 { | |
| 237 boost::mutex::scoped_lock lock(mutex_); | |
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238 PrepareLogFile(error_, errorFile_, "ERROR", path); |
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239 PrepareLogFile(warning_, warningFile_, "WARNING", path); |
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240 PrepareLogFile(info_, infoFile_, "INFO", path); |
| 1489 | 241 } |
| 242 | |
| 243 InternalLogger::InternalLogger(const char* level, | |
| 244 const char* file, | |
| 245 int line) : | |
| 246 lock_(mutex_) | |
| 247 { | |
| 248 char c; | |
| 249 | |
| 250 if (strcmp(level, "ERROR") == 0) | |
| 251 { | |
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252 stream_ = error_; |
| 1489 | 253 c = 'E'; |
| 254 } | |
| 255 else if (strcmp(level, "WARNING") == 0) | |
| 256 { | |
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257 stream_ = warning_; |
| 1489 | 258 c = 'W'; |
| 259 } | |
| 260 else if (strcmp(level, "INFO") == 0) | |
| 261 { | |
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262 stream_ = infoEnabled_ ? info_ : &null_; |
| 1489 | 263 c = 'I'; |
| 264 } | |
| 265 else if (strcmp(level, "TRACE") == 0) | |
| 266 { | |
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267 stream_ = traceEnabled_ ? info_ : &null_; |
| 1489 | 268 c = 'T'; |
| 269 } | |
| 270 else | |
| 271 { | |
| 272 // Unknown logging level | |
| 273 throw OrthancException(ErrorCode_InternalError); | |
| 274 } | |
| 275 | |
| 276 if (stream_ != &null_) | |
| 277 { | |
| 278 boost::filesystem::path path(file); | |
| 279 boost::posix_time::ptime now = boost::posix_time::microsec_clock::local_time(); | |
| 280 boost::posix_time::time_duration duration = now.time_of_day(); | |
| 281 | |
| 282 /** | |
| 283 From Google Log documentation: | |
| 284 | |
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285 "Log lines have this form: |
| 1489 | 286 |
| 287 Lmmdd hh:mm:ss.uuuuuu threadid file:line] msg... | |
| 288 | |
| 289 where the fields are defined as follows: | |
| 290 | |
| 291 L A single character, representing the log level (eg 'I' for INFO) | |
| 292 mm The month (zero padded; ie May is '05') | |
| 293 dd The day (zero padded) | |
| 294 hh:mm:ss.uuuuuu Time in hours, minutes and fractional seconds | |
| 295 threadid The space-padded thread ID as returned by GetTID() (this matches the PID on Linux) | |
| 296 file The file name | |
| 297 line The line number | |
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298 msg The user-supplied message" |
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299 |
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300 In this implementation, "threadid" is not printed. |
| 1489 | 301 **/ |
| 302 | |
| 303 char date[32]; | |
| 304 sprintf(date, "%c%02d%02d %02d:%02d:%02d.%06d ", c, | |
| 305 now.date().month().as_number(), | |
| 306 now.date().day().as_number(), | |
| 307 duration.hours(), | |
| 308 duration.minutes(), | |
| 309 duration.seconds(), | |
| 310 static_cast<int>(duration.fractional_seconds())); | |
| 311 | |
| 312 *stream_ << date << path.filename().string() << ":" << line << "] "; | |
| 313 } | |
| 314 } | |
| 1485 | 315 } |
| 316 } | |
| 1488 | 317 |
| 318 #endif | |
| 1489 | 319 |
| 320 | |
| 321 #endif // ORTHANC_ENABLE_LOGGING |