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git-vendor-name: easylogging git-vendor-dir: vendor/github.com/muflihun/easyloggingpp git-vendor-repository: https://github.com/muflihun/easyloggingpp git-vendor-ref: master
87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
//
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// This file is part of Easylogging++ samples
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//
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// Custom format specifier to demonstrate usage of el::Helpers::installCustomFormatSpecifier
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//
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// Revision 1.2
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// @author mkhan3189
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//
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#include "easylogging++.h"
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INITIALIZE_EASYLOGGINGPP
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enum ELogLevel : el::base::type::VerboseLevel {
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kLogLevel_Off = 0,
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kLogLevel_Error,
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kLogLevel_Warning,
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kLogLevel_Info,
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kLogLevel_Debug,
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kLogLevel_Verbose
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};
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static std::map<ELogLevel, std::string> sSeverityMap {
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{ kLogLevel_Error, "ouch!" },
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{ kLogLevel_Warning, "oops" },
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{ kLogLevel_Info, "hey" },
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{ kLogLevel_Debug, "debugging" },
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{ kLogLevel_Verbose, "loquacious" }
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};
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std::string
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getSeverity(const el::LogMessage* message) {
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return sSeverityMap[static_cast<ELogLevel>(message->verboseLevel())].c_str();
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}
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class HttpRequest {
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public:
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std::string getIp(const el::LogMessage*) {
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return "192.168.1.1";
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}
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};
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int main(void) {
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using namespace std::placeholders;
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HttpRequest request;
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// Install format specifier
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el::Helpers::installCustomFormatSpecifier(el::CustomFormatSpecifier("%ip_addr", std::bind(&HttpRequest::getIp, request, _1)));
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// Either you can do what's done above (for member function) or if you have static function you can simply say
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// el::CustomFormatSpecifier("%ip_addr", getIp)
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// Configure loggers
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el::Loggers::reconfigureAllLoggers(el::ConfigurationType::Format, "%datetime %level %ip_addr : %msg");
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LOG(INFO) << "This is after installed 'ip_addr' spec";
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// Uninstall custom format specifier
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el::Helpers::uninstallCustomFormatSpecifier("%ip_addr");
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LOG(INFO) << "This is after uninstalled";
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// Install format specifier
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el::Helpers::installCustomFormatSpecifier(el::CustomFormatSpecifier("%severity", getSeverity));
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// Configure loggers
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el::Loggers::reconfigureAllLoggers(el::ConfigurationType::Format, "%datetime{%b %d %H:%m:%s}: [%severity] %msg");
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el::Loggers::setVerboseLevel(kLogLevel_Verbose);
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VLOG(kLogLevel_Info) << "Installed 'severity' custom formatter";
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VLOG(kLogLevel_Error) << "This is an error";
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VLOG(kLogLevel_Warning) << "This is a warning";
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VLOG(kLogLevel_Info) << "This is info";
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VLOG(kLogLevel_Debug) << "This is debug";
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VLOG(kLogLevel_Verbose) << "This is verbose";
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// Uninstall custom format specifier
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el::Helpers::uninstallCustomFormatSpecifier("%severity");
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VLOG(kLogLevel_Info) << "Uninstalled 'severity' custom formatter";
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VLOG(kLogLevel_Error) << "This is an error";
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VLOG(kLogLevel_Warning) << "This is a warning";
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VLOG(kLogLevel_Info) << "This is info";
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VLOG(kLogLevel_Debug) << "This is debug";
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VLOG(kLogLevel_Verbose) << "This is verbose";
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return 0;
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}
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