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plugin/syslog/logging.cc
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2009 Sun Microsystems, Inc.
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 *  Copyright (C) 2010 Mark Atwood
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; version 2 of the License.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#include "config.h"
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#include <stdarg.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <boost/date_time.hpp>
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#include <drizzled/gettext.h>
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#include <drizzled/session.h>
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#include "logging.h"
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#include "wrap.h"
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namespace drizzle_plugin
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{
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logging::Syslog::Syslog(const std::string &facility,
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                        const std::string &priority,
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                        uint64_t threshold_slow,
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                        uint64_t threshold_big_resultset,
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                        uint64_t threshold_big_examined) :
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  drizzled::plugin::Logging("Syslog Logging"),
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  _facility(WrapSyslog::getFacilityByName(facility.c_str())),
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  _priority(WrapSyslog::getPriorityByName(priority.c_str())),
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  _threshold_slow(threshold_slow),
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  _threshold_big_resultset(threshold_big_resultset),
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  _threshold_big_examined(threshold_big_examined)
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{
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  if (_facility < 0)
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  {
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    drizzled::errmsg_printf(drizzled::error::WARN,
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                            _("syslog facility \"%s\" not known, using \"local0\""),
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                            facility.c_str());
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    _facility= WrapSyslog::getFacilityByName("local0");
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  }
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  if (_priority < 0)
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  {
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    drizzled::errmsg_printf(drizzled::error::WARN,
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                            _("syslog priority \"%s\" not known, using \"info\""),
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                            priority.c_str());
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    _priority= WrapSyslog::getPriorityByName("info");
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  }
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}
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bool logging::Syslog::post(drizzled::Session *session)
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{
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  assert(session != NULL);
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  // return if query was not too small
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  if (session->sent_row_count < _threshold_big_resultset)
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    return false;
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  if (session->examined_row_count < _threshold_big_examined)
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    return false;
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  /*
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    TODO, the session object should have a "utime command completed"
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    inside itself, so be more accurate, and so this doesnt have to
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    keep calling current_utime, which can be slow.
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  */
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  uint64_t t_mark= session->getCurrentTimestamp(false);
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  // return if query was not too slow
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  if (session->getElapsedTime() < _threshold_slow)
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    return false;
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  drizzled::Session::QueryString query_string(session->getQueryString());
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  drizzled::util::string::const_shared_ptr schema(session->schema());
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  WrapSyslog::singleton()
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    .log(_facility, _priority,
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         "thread_id=%ld query_id=%ld"
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         " db=\"%.*s\""
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         " query=\"%.*s\""
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         " command=\"%.*s\""
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         " t_connect=%lld t_start=%lld t_lock=%lld"
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         " rows_sent=%ld rows_examined=%ld"
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         " tmp_table=%ld total_warn_count=%ld\n",
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         (unsigned long) session->thread_id,
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         (unsigned long) session->getQueryId(),
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         (int) schema->size(),
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         schema->empty() ? "" : schema->c_str(),
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         (int) query_string->length(), 
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         query_string->empty() ? "" : query_string->c_str(),
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         (int) drizzled::getCommandName(session->command).size(),
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         drizzled::getCommandName(session->command).c_str(),
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         (unsigned long long) (t_mark - session->getConnectMicroseconds()),
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         (unsigned long long) (session->getElapsedTime()),
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         (unsigned long long) (t_mark - session->utime_after_lock),
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         (unsigned long) session->sent_row_count,
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         (unsigned long) session->examined_row_count,
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         (unsigned long) session->tmp_table,
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         (unsigned long) session->total_warn_count);
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    return false;
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}
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} /* namespsace drizzle_plugin */