MessageLogger Class Reference

#include <kaldi-error.h>

Collaboration diagram for MessageLogger:

Classes
struct	Log
struct	LogAndThrow

Public Member Functions
	MessageLogger (LogMessageEnvelope::Severity severity, const char *func, const char *file, int32 line)
	The constructor stores the message's "envelope", a set of data which. More...
template<typename T >
MessageLogger &	operator<< (const T &val)

Private Member Functions
std::string	GetMessage () const
void	LogMessage () const

Private Attributes
LogMessageEnvelope	envelope_
std::ostringstream	ss_

Detailed Description

Definition at line 109 of file kaldi-error.h.

Constructor & Destructor Documentation

MessageLogger()

MessageLogger	(	LogMessageEnvelope::Severity	severity,
		const char *	func,
		const char *	file,
		int32	line
	)

The constructor stores the message's "envelope", a set of data which.

Definition at line 174 of file kaldi-error.cc.

References kaldi::GetShortFileName().

                                                                             {
  // Obviously, we assume the strings survive the destruction of this object.
  envelope_.severity = severity;
  envelope_.func = func;
  envelope_.file = GetShortFileName(file); // Points inside 'file'.
  envelope_.line = line;
}

Member Function Documentation

GetMessage()

std::string GetMessage ( ) const

inlineprivate

Definition at line 139 of file kaldi-error.h.

Referenced by MessageLogger::LogAndThrow::operator=().

{ return ss_.str(); }

LogMessage()

void LogMessage ( ) const

private

Definition at line 183 of file kaldi-error.cc.

References KALDI_VERSION, kaldi::KaldiGetStackTrace(), LogMessageEnvelope::kAssertFailed, LogMessageEnvelope::kError, LogMessageEnvelope::kInfo, LogMessageEnvelope::kWarning, and kaldi::log_handler.

Referenced by MessageLogger::Log::operator=(), and MessageLogger::LogAndThrow::operator=().

                                     {
  // Send to the logging handler if provided.
  if (log_handler != NULL) {
    log_handler(envelope_, GetMessage().c_str());
    return;
  }

  // Otherwise, use the default Kaldi logging.
  // Build the log-message header.
  std::stringstream full_message;
  if (envelope_.severity > LogMessageEnvelope::kInfo) {
    full_message << "VLOG[" << envelope_.severity << "] (";
  } else {
    switch (envelope_.severity) {
    case LogMessageEnvelope::kInfo:
      full_message << "LOG (";
      break;
    case LogMessageEnvelope::kWarning:
      full_message << "WARNING (";
      break;
    case LogMessageEnvelope::kAssertFailed:
      full_message << "ASSERTION_FAILED (";
      break;
    case LogMessageEnvelope::kError:
    default: // If not the ERROR, it still an error!
      full_message << "ERROR (";
      break;
    }
  }
  // Add other info from the envelope and the message text.
  full_message << program_name.c_str() << "[" KALDI_VERSION "]" << ':'
               << envelope_.func << "():" << envelope_.file << ':'
               << envelope_.line << ") " << GetMessage().c_str();

  // Add stack trace for errors and assertion failures, if available.
  if (envelope_.severity < LogMessageEnvelope::kWarning) {
    const std::string &stack_trace = KaldiGetStackTrace();
    if (!stack_trace.empty()) {
      full_message << "\n\n" << stack_trace;
    }
  }

  // Print the complete message to stderr.
  full_message << "\n";
  std::cerr << full_message.str();
}

operator<<()

MessageLogger& operator<< ( const T &  val )

inline

Definition at line 119 of file kaldi-error.h.

                                                                {
    ss_ << val;
    return *this;
  }

Member Data Documentation

envelope_

LogMessageEnvelope envelope_

private

Definition at line 142 of file kaldi-error.h.

ss_

std::ostringstream ss_

private

Definition at line 143 of file kaldi-error.h.

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The documentation for this class was generated from the following files:

• base/kaldi-error.h
• base/kaldi-error.cc