| 1 |
# -*- Mode: Cperl -*- |
| 2 |
# Query.pm -- |
| 3 |
# ITIID : $ITI$ $Header $__Header$ |
| 4 |
# Author : Ulrich Pfeifer |
| 5 |
# Created On : Fri Sep 13 13:05:52 1996 |
| 6 |
# Last Modified By: Ulrich Pfeifer |
| 7 |
# Last Modified On: Fri Apr 14 16:27:01 2000 |
| 8 |
# Language : CPerl |
| 9 |
# Update Count : 57 |
| 10 |
# Status : Unknown, Use with caution! |
| 11 |
# |
| 12 |
# Copyright (c) 1996-1997, Ulrich Pfeifer |
| 13 |
# |
| 14 |
|
| 15 |
package WAIT::Query::Base; |
| 16 |
|
| 17 |
sub new { |
| 18 |
my $type = shift; |
| 19 |
my $table = shift; |
| 20 |
my $self = {Table => $table}; |
| 21 |
|
| 22 |
bless $self, ref($type) || $type; |
| 23 |
if (@_) { |
| 24 |
$self->add(@_); |
| 25 |
} else { |
| 26 |
$self; |
| 27 |
} |
| 28 |
} |
| 29 |
|
| 30 |
sub add { |
| 31 |
my ($self, $fldorref, %parm) = @_; |
| 32 |
my @fld = (ref $fldorref)?@$fldorref:$fldorref; |
| 33 |
my $fld; |
| 34 |
|
| 35 |
for $fld (@fld) { |
| 36 |
if (defined $parm{Plain}) { |
| 37 |
if (defined $self->{Plain}->{$fld}) { |
| 38 |
$self->{Plain}->{$fld} .= ' ' . $parm{Plain}; |
| 39 |
} else { |
| 40 |
$self->{Plain}->{$fld} = $parm{Plain}; |
| 41 |
} |
| 42 |
} |
| 43 |
if (defined $parm{Raw}) { |
| 44 |
if (defined $self->{Raw}->{$fld}) { |
| 45 |
$self->{Raw}->{$fld}->merge($parm{Raw}); |
| 46 |
} else { |
| 47 |
$self->{Raw}->{$fld} = $parm{Raw}; |
| 48 |
} |
| 49 |
} |
| 50 |
} |
| 51 |
$self; |
| 52 |
} |
| 53 |
|
| 54 |
sub merge { |
| 55 |
my ($self, $other) = @_; |
| 56 |
my $fld; |
| 57 |
|
| 58 |
if (ref($self) ne ref($other)) { |
| 59 |
return $other->merge($self); |
| 60 |
} |
| 61 |
for $fld (keys %{$other->{Plain}}) { |
| 62 |
$self->add($fld, Plain => $other->{Plain}->{$fld}); |
| 63 |
} |
| 64 |
for $fld (keys %{$other->{Raw}}) { |
| 65 |
$self->add($fld, Raw => $other->{Raw}->{$fld}); |
| 66 |
} |
| 67 |
|
| 68 |
$self; |
| 69 |
} |
| 70 |
|
| 71 |
sub clone { |
| 72 |
my $self = shift; |
| 73 |
my %copy; |
| 74 |
my $fld; |
| 75 |
|
| 76 |
for $fld (keys %{$self->{Plain}}) { |
| 77 |
$copy{Plain}->{$fld} = $self->{Plain}->{$fld}; |
| 78 |
} |
| 79 |
for $fld (keys %{$self->{Raw}}) { |
| 80 |
next unless defined $self->{Raw}->{$fld}; # XXX bug elsewere |
| 81 |
$copy{Raw}->{$fld} = $self->{Raw}->{$fld}->clone; |
| 82 |
} |
| 83 |
|
| 84 |
$self; |
| 85 |
} |
| 86 |
|
| 87 |
sub execute { |
| 88 |
my $self = shift; |
| 89 |
my $tb = $self->{Table}; |
| 90 |
my %result; |
| 91 |
my $fld; |
| 92 |
|
| 93 |
for $fld (keys %{$self->{Plain}}, keys %{$self->{Raw}}) { |
| 94 |
%r = $tb->search( |
| 95 |
{ attr => $fld, |
| 96 |
cont => $self->{Plain}->{$fld}, |
| 97 |
raw => $self->{Raw}->{$fld}, |
| 98 |
@_ |
| 99 |
} |
| 100 |
); |
| 101 |
my ($key, $val); |
| 102 |
while (($key, $val) = each %r) { |
| 103 |
if (exists $result{$key}) { |
| 104 |
$result{$key} += $val; |
| 105 |
} else { |
| 106 |
$result{$key} = $val; |
| 107 |
} |
| 108 |
} |
| 109 |
} |
| 110 |
%result; |
| 111 |
} |
| 112 |
|
| 113 |
sub hilight { |
| 114 |
my $self = shift; |
| 115 |
$self->{Table}->hilight($_[0], $self->{Plain}, $self->{Raw}) |
| 116 |
} |
| 117 |
|
| 118 |
sub flatten { |
| 119 |
my $self = shift; |
| 120 |
#print STDERR "WAIT::Query::Base::flatten($self)\n"; |
| 121 |
$self->clone() |
| 122 |
} |
| 123 |
|
| 124 |
package WAIT::Query::bin; |
| 125 |
|
| 126 |
sub new { |
| 127 |
my $type = shift; |
| 128 |
my $self = [@_]; |
| 129 |
|
| 130 |
#print STDERR "WAIT::Query::bin::new $type $self\n"; |
| 131 |
bless $self, ref($type) || $type; |
| 132 |
} |
| 133 |
|
| 134 |
sub flatten { |
| 135 |
my $self = shift; |
| 136 |
#print STDERR "WAIT::Query::bin::flatten($self)\n"; |
| 137 |
$self->[0]->flatten->merge($self->[1]->flatten) |
| 138 |
} |
| 139 |
|
| 140 |
sub hilight { |
| 141 |
my $self = shift; |
| 142 |
my $query = $self->flatten(); |
| 143 |
|
| 144 |
$query->hilight(@_); |
| 145 |
} |
| 146 |
|
| 147 |
package WAIT::Query::and; |
| 148 |
|
| 149 |
@ISA = qw(WAIT::Query::bin); |
| 150 |
|
| 151 |
sub execute { |
| 152 |
my $self = shift; |
| 153 |
my %ra = $self->[0]->execute(); |
| 154 |
my %rb = $self->[1]->execute(); |
| 155 |
|
| 156 |
#print STDERR "WAIT::Query::and::execute\n"; |
| 157 |
for (keys %ra) { |
| 158 |
if (exists $rb{$_}) { |
| 159 |
$ra{$_} *= $rb{$_}; |
| 160 |
delete $ra{$_} if $ra{$_} <= 0; |
| 161 |
} else { |
| 162 |
delete $ra{$_}; |
| 163 |
} |
| 164 |
} |
| 165 |
%ra; |
| 166 |
} |
| 167 |
|
| 168 |
|
| 169 |
sub merge { |
| 170 |
#print STDERR "WAIT::Query::and::merge(@_)\n"; |
| 171 |
new WAIT::Query::or @_; # XXX |
| 172 |
} |
| 173 |
|
| 174 |
package WAIT::Query::or; |
| 175 |
|
| 176 |
@ISA = qw(WAIT::Query::bin); |
| 177 |
|
| 178 |
sub execute { |
| 179 |
my $self = shift; |
| 180 |
my %ra = $self->[0]->execute(); |
| 181 |
my %rb = $self->[1]->execute(); |
| 182 |
|
| 183 |
for (keys %ra) { |
| 184 |
if (exists $rb{$_}) { |
| 185 |
$ra{$_} += $rb{$_} |
| 186 |
} |
| 187 |
} |
| 188 |
for (keys %rb) { |
| 189 |
unless (exists $ra{$_}) { |
| 190 |
$ra{$_} = $rb{$_} |
| 191 |
} |
| 192 |
} |
| 193 |
%ra; |
| 194 |
} |
| 195 |
|
| 196 |
|
| 197 |
sub merge { |
| 198 |
my $self = shift; |
| 199 |
|
| 200 |
if (ref($_[0]) eq 'WAIT::Query::Base') { |
| 201 |
$self->[0] = $self->[0]->merge($_[0]); |
| 202 |
} else { |
| 203 |
new WAIT::Query::or $self, @_; # XXX |
| 204 |
} |
| 205 |
} |
| 206 |
|
| 207 |
package WAIT::Query::not; |
| 208 |
|
| 209 |
@ISA = qw(WAIT::Query::and WAIT::Query::bin); |
| 210 |
|
| 211 |
sub execute { |
| 212 |
my $self = shift; |
| 213 |
my %ra = $self->[0]->execute(); |
| 214 |
my %rb = $self->[1]->execute(); |
| 215 |
|
| 216 |
for (keys %ra) { |
| 217 |
if (exists $rb{$_}) { |
| 218 |
if (exists $ra{$_}) { |
| 219 |
$ra{$_} -= $rb{$_}; |
| 220 |
delete $ra{$_} if $ra{$_} <= 0; |
| 221 |
} |
| 222 |
} |
| 223 |
} |
| 224 |
|
| 225 |
%ra; |
| 226 |
} |
| 227 |
|
| 228 |
package WAIT::Query::Raw; |
| 229 |
use strict; |
| 230 |
use Carp; |
| 231 |
|
| 232 |
sub new { |
| 233 |
my $type = shift; |
| 234 |
my $self = shift; |
| 235 |
|
| 236 |
$self = {} unless defined $self; |
| 237 |
bless $self, ref($type) || $type; |
| 238 |
} |
| 239 |
|
| 240 |
sub clone { |
| 241 |
my $self = shift; |
| 242 |
my %copy; |
| 243 |
|
| 244 |
for (keys %$self) { |
| 245 |
$copy{$_} = [@{$self->{$_}}]; |
| 246 |
} |
| 247 |
$self->new(\%copy); |
| 248 |
} |
| 249 |
|
| 250 |
# Modifies first argument |
| 251 |
sub merge { |
| 252 |
my $self = shift; |
| 253 |
my $other = shift; |
| 254 |
|
| 255 |
croak "$other is not at 'WAIT::Query'" unless ref($other) =~ /^WAIT::Query/; |
| 256 |
for (keys %$other) { |
| 257 |
if (exists $self->{$_}) { |
| 258 |
push @{$self->{$_}}, @{$other->{$_}} |
| 259 |
} else { |
| 260 |
$self->{$_} = $other->{$_}; |
| 261 |
} |
| 262 |
} |
| 263 |
} |
| 264 |
|
| 265 |
1; |
Parent Directory
| 
Revision Log