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Annotation of loncom/debugging_tools/seed_accesscount.pl, revision 1.1

1.1     ! matthew     1: #!/usr/bin/perl -w
        !             2: #
        !             3: # The LearningOnline Network
        !             4: #
        !             5: # $Id: dump_db.pl,v 1.3 2003/09/04 14:32:46 matthew Exp $
        !             6: #
        !             7: # Copyright Michigan State University Board of Trustees
        !             8: #
        !             9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
        !            10: #
        !            11: # LON-CAPA is free software; you can redistribute it and/or modify
        !            12: # it under the terms of the GNU General Public License as published by
        !            13: # the Free Software Foundation; either version 2 of the License, or
        !            14: # (at your option) any later version.
        !            15: #
        !            16: # LON-CAPA is distributed in the hope that it will be useful,
        !            17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            19: # GNU General Public License for more details.
        !            20: #
        !            21: # You should have received a copy of the GNU General Public License
        !            22: # along with LON-CAPA; if not, write to the Free Software
        !            23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
        !            24: #
        !            25: # /home/httpd/html/adm/gpl.txt
        !            26: #
        !            27: # http://www.lon-capa.org/
        !            28: #
        !            29: #################################################
        !            30: use strict;
        !            31: use Getopt::Long;
        !            32: use GDBM_File;
        !            33: 
        !            34: #
        !            35: # Options
        !            36: my ($verbose,$help) = (0);
        !            37: GetOptions("v"    => \$verbose,
        !            38:            "help" => \$help);
        !            39: 
        !            40: #
        !            41: # Help them out if they ask for it
        !            42: if ($help) {
        !            43:     print <<END;
        !            44: seed_accesscount.pl 
        !            45: END
        !            46:     exit;
        !            47: }
        !            48: 
        !            49: #
        !            50: # Loop through ARGV getting files.
        !            51: $|=1;
        !            52: while (my $resDBname = shift()) {
        !            53:     my ($path) = ($resDBname =~ /^(.*)nohist_resevaldata.db$/);
        !            54:     print STDERR $path.$/;
        !            55:     my %resevalDB;
        !            56:     if (! tie(%resevalDB,'GDBM_File',$resDBname,&GDBM_READER,0640)) {
        !            57:         warn "Unable to tie to $resDBname";
        !            58:         next;
        !            59:     }
        !            60:     #
        !            61:     my $accessDBname = $path.'nohist_accesscount.db';
        !            62:     my %accessDB;
        !            63:     if (! tie(%accessDB,'GDBM_File',$accessDBname,&GDBM_WRCREAT,0640)) {
        !            64:         warn "Unable to tie to $accessDBname";
        !            65:         next;
        !            66:     }
        !            67:     #
        !            68:     my @Keys;
        !            69:     my ($basekey,$value);
        !            70:     #
        !            71:     $! = 0;
        !            72:     while (eval('($basekey,$value) = each(%resevalDB);')) {
        !            73:         if ($!) {
        !            74:             print STDERR $1.$/;
        !            75:             $!=0;
        !            76:         }
        !            77:         my $key = &unescape($basekey);
        !            78:         my $src;
        !            79:         next if (! ((undef,$src) = ($key =~ /^(.*)___(.*)___count/)));
        !            80:         my $value = &unescape($value);
        !            81:         if (exists($accessDB{$src})) {
        !            82:             $accessDB{$src}+=$value;
        !            83:         } else {
        !            84:             $accessDB{$src}=$value;
        !            85:         }
        !            86:         push (@Keys,$basekey);
        !            87:     }
        !            88:     #
        !            89:     untie %accessDB;    
        !            90:     untie %resevalDB;
        !            91:     # remove the keys we saved.
        !            92:     next if (! scalar(@Keys)); # skip it if we did not get anything...
        !            93:     if (! tie(%resevalDB,'GDBM_File',$resDBname,&GDBM_WRITER,0640)) {
        !            94:         die "Unable to re-tie to $resDBname.  No deletes occured.";
        !            95:     }
        !            96:     foreach my $basekey (@Keys) {
        !            97:         delete($resevalDB{$basekey});
        !            98:     }
        !            99:     untie %resevalDB;
        !           100: }
        !           101: exit;
        !           102: 
        !           103: ######################################
        !           104: sub unescape {
        !           105:     my $str=shift;
        !           106:     $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
        !           107:     return $str;
        !           108: }