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Annotation of loncom/debugging_tools/seed_accesscount.pl, revision 1.2

1.1       matthew     1: #!/usr/bin/perl -w
                      2: #
                      3: # The LearningOnline Network
                      4: #
1.2     ! matthew     5: # $Id: seed_accesscount.pl,v 1.1 2003/11/14 19:52:10 matthew Exp $
1.1       matthew     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);
1.2     ! matthew    81:         $src = &escape($src);
1.1       matthew    82:         if (exists($accessDB{$src})) {
                     83:             $accessDB{$src}+=$value;
                     84:         } else {
                     85:             $accessDB{$src}=$value;
                     86:         }
                     87:         push (@Keys,$basekey);
                     88:     }
                     89:     #
                     90:     untie %accessDB;    
                     91:     untie %resevalDB;
                     92:     # remove the keys we saved.
                     93:     next if (! scalar(@Keys)); # skip it if we did not get anything...
                     94:     if (! tie(%resevalDB,'GDBM_File',$resDBname,&GDBM_WRITER,0640)) {
                     95:         die "Unable to re-tie to $resDBname.  No deletes occured.";
                     96:     }
                     97:     foreach my $basekey (@Keys) {
                     98:         delete($resevalDB{$basekey});
                     99:     }
                    100:     untie %resevalDB;
                    101: }
                    102: exit;
                    103: 
                    104: ######################################
1.2     ! matthew   105: sub escape {
        !           106:     my $str=shift;
        !           107:     $str =~ s/(\W)/"%".unpack('H2',$1)/eg;
        !           108:     return $str;
        !           109: }
        !           110: 
1.1       matthew   111: sub unescape {
                    112:     my $str=shift;
                    113:     $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
                    114:     return $str;
                    115: }