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// Copyright (C) 2012 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
#include <log/buffer_appender_impl.h>
#include <log4cplus/loglevel.h>
#include <boost/scoped_ptr.hpp>
#include <cstdio>
namespace isc {
namespace log {
namespace internal {
BufferAppender::~BufferAppender() {
// If there is anything left in the buffer,
// it means no reconfig has been done, and
// we can assume the logging system was either
// never setup, or broke while doing so.
// So dump all that is left to stdout
try {
flushStdout();
destructorImpl();
} catch (...) {
// Ok if we can't even seem to dump to stdout, never mind.
}
}
void
BufferAppender::flushStdout() {
// This does not show a bit of information normal log messages
// do, so perhaps we should try and setup a new logger here
// However, as this is called from a destructor, it may not
// be a good idea; as we can't reliably know whether in what
// state the logger instance is now (or what the specific logger's
// settings were).
LogEventList::const_iterator it;
for (it = stored_.begin(); it != stored_.end(); ++it) {
const std::string level(it->first);
LogEventPtr event(it->second);
std::printf("%s [%s]: %s\n", level.c_str(),
event->getLoggerName().c_str(),
event->getMessage().c_str());
}
stored_.clear();
}
void
BufferAppender::flush() {
LogEventList stored_copy;
stored_.swap(stored_copy);
LogEventList::const_iterator it;
for (it = stored_copy.begin(); it != stored_copy.end(); ++it) {
LogEventPtr event(it->second);
log4cplus::Logger logger =
log4cplus::Logger::getInstance(event->getLoggerName());
logger.log(event->getLogLevel(), event->getMessage());
}
flushed_ = true;
}
size_t
BufferAppender::getBufferSize() const {
return (stored_.size());
}
void
BufferAppender::append(const log4cplus::spi::InternalLoggingEvent& event) {
if (flushed_) {
isc_throw(LogBufferAddAfterFlush,
"Internal log buffer has been flushed already");
}
// get a clone, and put the pointer in a shared_ptr in the list
std::auto_ptr<log4cplus::spi::InternalLoggingEvent> event_aptr =
event.clone();
// Also store the string representation of the log level, to be
// used in flushStdout if necessary
stored_.push_back(LevelAndEvent(
log4cplus::LogLevelManager().toString(event.getLogLevel()),
LogEventPtr(event_aptr.release())));
}
} // end namespace internal
} // end namespace log
} // end namespace isc
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