#!/usr/bin/env python
# -*- coding: utf-8 -*-
# $Id: regen_sched_queues.py $
# pylint: disable=C0301

"""
Interface used by the admin to regenerate scheduling queues.
"""

__copyright__ = \
"""
Copyright (C) 2012-2015 Oracle Corporation

This file is part of VirtualBox Open Source Edition (OSE), as
available from http://www.virtualbox.org. This file is free software;
you can redistribute it and/or modify it under the terms of the GNU
General Public License (GPL) as published by the Free Software
Foundation, in version 2 as it comes in the "COPYING" file of the
VirtualBox OSE distribution. VirtualBox OSE is distributed in the
hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.

The contents of this file may alternatively be used under the terms
of the Common Development and Distribution License Version 1.0
(CDDL) only, as it comes in the "COPYING.CDDL" file of the
VirtualBox OSE distribution, in which case the provisions of the
CDDL are applicable instead of those of the GPL.

You may elect to license modified versions of this file under the
terms and conditions of either the GPL or the CDDL or both.
"""
__version__ = "$Revision: 101450 $"

# Standard python imports
import sys;
import os;
from optparse import OptionParser;

# Add Test Manager's modules path
g_ksTestManagerDir = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))));
sys.path.append(g_ksTestManagerDir);

# Test Manager imports
from testmanager.core.db            import TMDatabaseConnection;
from testmanager.core.schedulerbase import SchedulerBase;
from testmanager.core.schedgroup    import SchedGroupLogic;

class RegenSchedQueues(object): # pylint: disable=R0903
    """
    Regenerates all the scheduling queues.
    """

    def __init__(self):
        """
        Parse command line.
        """

        oParser = OptionParser();
        oParser.add_option('-q', '--quiet', dest = 'fQuiet', action = 'store_true', default = False,
                           help = 'Quiet execution');
        oParser.add_option('-u', '--uid', dest = 'uid', action = 'store', type = 'int', default = 1,
                           help = 'User ID to accredit with this job');
        oParser.add_option('--profile', dest = 'fProfile', action = 'store_true', default = False,
                           help = 'User ID to accredit with this job');

        (self.oConfig, _) = oParser.parse_args();


    def doIt(self):
        """
        Does the job.
        """
        oDb = TMDatabaseConnection();

        aoGroups = SchedGroupLogic(oDb).getAll();
        iRc = 0;
        for oGroup in aoGroups:
            if not self.oConfig.fQuiet:
                print '%s (ID %#d):' % (oGroup.sName, oGroup.idSchedGroup,);
            try:
                (aoErrors, asMessages) = SchedulerBase.recreateQueue(oDb, self.oConfig.uid, oGroup.idSchedGroup, 2);
            except Exception as oXcpt:
                oDb.rollback();
                print '  !!Hit exception processing "%s": %s' % (oGroup.sName, oXcpt,);
            else:
                if len(aoErrors) == 0:
                    if not self.oConfig.fQuiet:
                        print '  Successfully regenerated.';
                else:
                    iRc = 1;
                    print '  %d errors:' % (len(aoErrors,));
                    for oError in aoErrors:
                        if oError[1]  is None:
                            print '  !!%s' % (oError[0],);
                        else:
                            print '  !!%s (%s)' % (oError[0], oError[1]);
                if len(asMessages) > 0 and not self.oConfig.fQuiet:
                    print '  %d messages:' % (len(asMessages),);
                    for sMsg in asMessages:
                        print '  ##%s' % (sMsg,);
        return iRc;

    @staticmethod
    def main():
        """ Main function. """
        oMain = RegenSchedQueues();
        if oMain.oConfig.fProfile is not True:
            iRc = oMain.doIt();
        else:
            import cProfile;
            oProfiler = cProfile.Profile();
            iRc = oProfiler.runcall(oMain.doIt);
            oProfiler.print_stats(sort = 'time');
            oProfiler = None;
        return iRc;

if __name__ == '__main__':
    sys.exit(RegenSchedQueues().main());

