1 | ###########################################################################
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2 | #
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3 | # mgbuilder.pm -- MGBuilder object
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4 | # A component of the Greenstone digital library software
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5 | # from the New Zealand Digital Library Project at the
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6 | # University of Waikato, New Zealand.
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7 | #
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8 | # Copyright (C) 1999 New Zealand Digital Library Project
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9 | #
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10 | # This program is free software; you can redistribute it and/or modify
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11 | # it under the terms of the GNU General Public License as published by
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12 | # the Free Software Foundation; either version 2 of the License, or
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13 | # (at your option) any later version.
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14 | #
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15 | # This program is distributed in the hope that it will be useful,
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16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | # GNU General Public License for more details.
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19 | #
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20 | # You should have received a copy of the GNU General Public License
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21 | # along with this program; if not, write to the Free Software
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22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | #
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24 | ###########################################################################
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25 |
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26 | package mgbuilder;
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27 |
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28 | use classify;
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29 | use cfgread;
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30 | use colcfg;
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31 | use plugin;
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32 | use util;
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33 | use FileHandle;
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34 |
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35 | BEGIN {
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36 | # set autoflush on for STDERR and STDOUT so that mg
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37 | # doesn't get out of sync with plugins
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38 | STDOUT->autoflush(1);
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39 | STDERR->autoflush(1);
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40 | }
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41 |
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42 | END {
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43 | STDOUT->autoflush(0);
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44 | STDERR->autoflush(0);
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45 | }
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46 |
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47 | $maxdocsize = 12000;
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48 |
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49 | %wanted_index_files = ('td'=>1,
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50 | 't'=>1,
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51 | 'idb'=>1,
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52 | 'ib1'=>1,
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53 | 'ib2'=>1,
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54 | 'ib3'=>1,
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55 | 'i'=>1,
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56 | 'ip'=>1,
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57 | 'tiw'=>1,
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58 | 'wa'=>1);
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59 |
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60 |
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61 | sub new {
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62 | my ($class, $collection, $source_dir, $build_dir, $verbosity,
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63 | $maxdocs, $debug, $keepold, $allclassifications, $outhandle) = @_;
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64 |
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65 | $outhandle = STDERR unless defined $outhandle;
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66 |
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67 | # create an mgbuilder object
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68 | my $self = bless {'collection'=>$collection,
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69 | 'source_dir'=>$source_dir,
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70 | 'build_dir'=>$build_dir,
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71 | 'verbosity'=>$verbosity,
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72 | 'maxdocs'=>$maxdocs,
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73 | 'debug'=>$debug,
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74 | 'keepold'=>$keepold,
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75 | 'allclassifications'=>$allclassifications,
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76 | 'outhandle'=>$outhandle,
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77 | 'notbuilt'=>[] # indexes not built
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78 | }, $class;
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79 |
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80 |
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81 | # read in the collection configuration file
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82 | my $colcfgname = "$ENV{'GSDLCOLLECTDIR'}/etc/collect.cfg";
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83 | if (!-e $colcfgname) {
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84 | die "mgbuilder::new - couldn't find collect.cfg for collection $collection\n";
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85 | }
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86 | $self->{'collect_cfg'} = &colcfg::read_collect_cfg ($colcfgname);
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87 |
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88 | # sort out subcollection indexes
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89 | if (defined $self->{'collect_cfg'}->{'indexsubcollections'}) {
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90 | my $indexes = $self->{'collect_cfg'}->{'indexes'};
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91 | $self->{'collect_cfg'}->{'indexes'} = [];
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92 | foreach $subcollection (@{$self->{'collect_cfg'}->{'indexsubcollections'}}) {
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93 | foreach $index (@$indexes) {
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94 | push (@{$self->{'collect_cfg'}->{'indexes'}}, "$index:$subcollection");
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95 | }
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96 | }
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97 | }
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98 |
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99 | # sort out language subindexes
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100 | if (defined $self->{'collect_cfg'}->{'languages'}) {
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101 | my $indexes = $self->{'collect_cfg'}->{'indexes'};
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102 | $self->{'collect_cfg'}->{'indexes'} = [];
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103 | foreach $language (@{$self->{'collect_cfg'}->{'languages'}}) {
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104 | foreach $index (@$indexes) {
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105 | push (@{$self->{'collect_cfg'}->{'indexes'}}, "$index:$language");
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106 | }
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107 | }
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108 | }
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109 |
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110 | # get the list of plugins for this collection
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111 | my $plugins = [];
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112 | if (defined $self->{'collect_cfg'}->{'plugin'}) {
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113 | $plugins = $self->{'collect_cfg'}->{'plugin'};
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114 | }
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115 |
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116 | # load all the plugins
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117 | $self->{'pluginfo'} = &plugin::load_plugins ($plugins, $verbosity, $outhandle);
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118 | if (scalar(@{$self->{'pluginfo'}}) == 0) {
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119 | print $outhandle "No plugins were loaded.\n";
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120 | die "\n";
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121 | }
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122 |
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123 | # get the list of classifiers for this collection
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124 | my $classifiers = [];
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125 | if (defined $self->{'collect_cfg'}->{'classify'}) {
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126 | $classifiers = $self->{'collect_cfg'}->{'classify'};
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127 | }
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128 |
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129 | # load all the classifiers
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130 | $self->{'classifiers'} = &classify::load_classifiers ($classifiers, $outhandle);
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131 |
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132 | # load up any dontgdbm fields
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133 | $self->{'dontgdbm'} = {};
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134 | if (defined ($self->{'collect_cfg'}->{'dontgdbm'})) {
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135 | foreach $dg (@{$self->{'collect_cfg'}->{'dontgdbm'}}) {
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136 | $self->{'dontgdbm'}->{$dg} = 1;
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137 | }
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138 | }
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139 |
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140 | # load up the document processor for building
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141 | # if a buildproc class has been created for this collection, use it
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142 | # otherwise, use the mg buildproc
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143 | my ($buildprocdir, $buildproctype);
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144 | if (-e "$ENV{'GSDLCOLLECTDIR'}/perllib/${collection}buildproc.pm") {
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145 | $buildprocdir = "$ENV{'GSDLCOLLECTDIR'}/perllib";
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146 | $buildproctype = "${collection}buildproc";
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147 | } else {
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148 | $buildprocdir = "$ENV{'GSDLHOME'}/perllib";
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149 | $buildproctype = "mgbuildproc";
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150 | }
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151 | require "$buildprocdir/$buildproctype.pm";
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152 |
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153 | eval("\$self->{'buildproc'} = new $buildproctype(\$collection, " .
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154 | "\$source_dir, \$build_dir, \$verbosity, \$outhandle)");
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155 | die "$@" if $@;
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156 |
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157 | return $self;
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158 | }
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159 |
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160 | sub init {
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161 | my $self = shift (@_);
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162 |
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163 | if (!$self->{'debug'} && !$self->{'keepold'}) {
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164 | # remove any old builds
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165 | &util::rm_r($self->{'build_dir'});
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166 | &util::mk_all_dir($self->{'build_dir'});
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167 |
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168 | # make the text directory
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169 | my $textdir = "$self->{'build_dir'}/text";
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170 | &util::mk_all_dir($textdir);
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171 | }
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172 | }
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173 |
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174 | sub compress_text {
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175 | my $self = shift (@_);
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176 | my ($textindex) = @_;
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177 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
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178 | my $exe = &util::get_os_exe ();
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179 | my $mg_passes_exe = &util::filename_cat($exedir, "mg_passes$exe");
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180 | my $mg_compression_dict_exe = &util::filename_cat($exedir, "mg_compression_dict$exe");
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181 | my $outhandle = $self->{'outhandle'};
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182 |
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183 | &util::mk_all_dir (&util::filename_cat($self->{'build_dir'}, "text"));
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184 | my $basefilename = "text/$self->{'collection'}";
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185 | my $fulltextprefix = &util::filename_cat ($self->{'build_dir'}, $basefilename);
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186 |
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187 | my $osextra = "";
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188 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
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189 | $fulltextprefix =~ s/\//\\/g;
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190 | } else {
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191 | $osextra = " -d /";
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192 | }
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193 |
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194 | print $outhandle "\n*** creating the compressed text\n" if ($self->{'verbosity'} >= 1);
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195 |
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196 | # collect the statistics for the text
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197 | # -b $maxdocsize sets the maximum document size to be 12 meg
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198 | print $outhandle "\n collecting text statistics\n" if ($self->{'verbosity'} >= 1);
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199 |
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200 | my ($handle);
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201 | if ($self->{'debug'}) {
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202 | $handle = STDOUT;
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203 | } else {
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204 | if (!-e "$mg_passes_exe" ||
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205 | !open (PIPEOUT, "| $mg_passes_exe -f $fulltextprefix -b $maxdocsize -T1 $osextra")) {
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206 | die "mgbuilder::compress_text - couldn't run $mg_passes_exe\n";
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207 | }
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208 | $handle = mgbuilder::PIPEOUT;
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209 | }
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210 |
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211 | $self->{'buildproc'}->set_output_handle ($handle);
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212 | $self->{'buildproc'}->set_mode ('text');
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213 | $self->{'buildproc'}->set_index ($textindex);
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214 | $self->{'buildproc'}->set_indexing_text (0);
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215 | $self->{'buildproc'}->reset();
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216 | &plugin::begin($self->{'pluginfo'}, $self->{'source_dir'},
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217 | $self->{'buildproc'}, $self->{'maxdocs'});
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218 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
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219 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
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220 | &plugin::end($self->{'pluginfo'});
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221 |
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222 | close ($handle) unless $self->{'debug'};
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223 |
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224 | $self->print_stats();
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225 |
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226 | # create the compression dictionary
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227 | # the compression dictionary is built by assuming the stats are from a seed
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228 | # dictionary (-S), if a novel word is encountered it is spelled out (-H),
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229 | # and the resulting dictionary must be less than 5 meg with the most frequent
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230 | # words being put into the dictionary first (-2 -k 5120)
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231 | if (!$self->{'debug'}) {
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232 | print $outhandle "\n creating the compression dictionary\n" if ($self->{'verbosity'} >= 1);
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233 | if (!-e "$mg_compression_dict_exe") {
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234 | die "mgbuilder::compress_text - couldn't run $mg_compression_dict_exe\n";
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235 | }
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236 | system ("$mg_compression_dict_exe -f $fulltextprefix -S -H -2 -k 5120 $osextra");
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237 |
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238 | # -b $maxdocsize sets the maximum document size to be 12 meg
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239 | if (!-e "$mg_passes_exe" ||
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240 | !open ($handle, "| $mg_passes_exe -f $fulltextprefix -b $maxdocsize -T2 $osextra")) {
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241 | die "mgbuilder::compress_text - couldn't run $mg_passes_exe\n";
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242 | }
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243 | }
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244 |
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245 | $self->{'buildproc'}->reset();
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246 | # compress the text
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247 | print $outhandle "\n compressing the text\n" if ($self->{'verbosity'} >= 1);
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248 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
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249 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
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250 | close ($handle) unless $self->{'debug'};
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251 |
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252 | $self->print_stats();
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253 | }
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254 |
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255 | sub want_built {
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256 | my $self = shift (@_);
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257 | my ($index) = @_;
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258 |
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259 | if (defined ($self->{'collect_cfg'}->{'dontbuild'})) {
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260 | foreach $checkstr (@{$self->{'collect_cfg'}->{'dontbuild'}}) {
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261 | if ($index =~ /^$checkstr$/) {
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262 | push (@{$self->{'notbuilt'}}, $self->{'index_mapping'}->{$index});
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263 | return 0;
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264 | }
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265 | }
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266 | }
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267 |
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268 | return 1;
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269 | }
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270 |
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271 | sub build_indexes {
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272 | my $self = shift (@_);
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273 | my ($indexname) = @_;
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274 | my $outhandle = $self->{'outhandle'};
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275 |
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276 | my $indexes = [];
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277 | if (defined $indexname && $indexname =~ /\w/) {
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278 | push @$indexes, $indexname;
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279 | } else {
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280 | $indexes = $self->{'collect_cfg'}->{'indexes'};
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281 | }
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282 |
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283 | # create the mapping between the index descriptions
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284 | # and their directory names
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285 | $self->{'index_mapping'} = $self->create_index_mapping ($indexes);
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286 |
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287 | # build each of the indexes
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288 | foreach $index (@$indexes) {
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289 | if ($self->want_built($index)) {
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290 | print $outhandle "\n*** building index $index in subdirectory " .
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291 | "$self->{'index_mapping'}->{$index}\n" if ($self->{'verbosity'} >= 1);
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292 | $self->build_index($index);
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293 | } else {
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294 | print $outhandle "\n*** ignoring index $index\n" if ($self->{'verbosity'} >= 1);
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295 | }
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296 | }
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297 | }
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298 |
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299 | # creates directory names for each of the index descriptions
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300 | sub create_index_mapping {
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301 | my $self = shift (@_);
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302 | my ($indexes) = @_;
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303 |
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304 | my %mapping = ();
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305 | $mapping{'indexmaporder'} = [];
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306 | $mapping{'subcollectionmaporder'} = [];
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307 | $mapping{'languagemaporder'} = [];
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308 |
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309 | # dirnames is used to check for collisions. Start this off
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310 | # with the manditory directory names
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311 | my %dirnames = ('text'=>'text',
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312 | 'extra'=>'extra');
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313 | my %pnames = ('index' => '', 'subcollection' => '', 'languages' => '');
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314 |
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315 | foreach $index (@$indexes) {
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316 | my ($level, $gran, $subcollection, $languages) = split (":", $index);
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317 |
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318 | # the directory name starts with the first character of the index level
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319 | my ($pindex) = $level =~ /^(.)/;
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320 |
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321 | # next comes a processed version of the index
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322 | $pindex .= $self->process_field ($gran);
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323 | $pindex = lc ($pindex);
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324 |
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325 | # next comes a processed version of the subcollection if there is one.
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326 | my $psub = $self->process_field ($subcollection);
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327 | $psub = lc ($psub);
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328 |
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329 | # next comes a processed version of the language if there is one.
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330 | my $plang = $self->process_field ($languages);
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331 | $plang = lc ($plang);
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332 |
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333 | my $dirname = $pindex . $psub . $plang;
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334 |
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335 | # check to be sure all index names are unique
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336 | while (defined ($dirnames{$dirname})) {
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337 | $dirname = $self->make_unique (\%pnames, $index, \$pindex, \$psub, \$plang);
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338 | }
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339 |
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340 | # store the mapping orders as well as the maps
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341 | if (!defined $mapping{'indexmap'}{"$level:$gran"}) {
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342 | $mapping{'indexmap'}{"$level:$gran"} = $pindex;
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343 | push (@{$mapping{'indexmaporder'}}, "$level:$gran");
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344 | }
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345 | if ($psub =~ /\w/ && !defined ($mapping{'subcollectionmap'}{$subcollection})) {
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346 | $mapping{'subcollectionmap'}{$subcollection} = $psub;
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347 | push (@{$mapping{'subcollectionmaporder'}}, $subcollection);
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348 | }
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349 | if ($plang =~ /\w/ && !defined ($mapping{'languagemap'}{$languages})) {
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350 | $mapping{'languagemap'}{$languages} = $plang;
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351 | push (@{$mapping{'languagemaporder'}}, $language);
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352 | }
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353 | $mapping{$index} = $dirname;
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354 | $dirnames{$dirname} = $index;
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355 | $pnames{'index'}{$pindex} = "$level:$gran";
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356 | $pnames{'subcollection'}{$psub} = $subcollection;
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357 | $pnames{'languages'}{$plang} = $languages;
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358 | }
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359 |
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360 | return \%mapping;
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361 | }
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362 |
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363 | # returns a processed version of a field.
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364 | # if the field has only one component the processed
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365 | # version will contain the first character and next consonant
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366 | # of that componant - otherwise it will contain the first
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367 | # character of the first two components
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368 | sub process_field {
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369 | my $self = shift (@_);
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370 | my ($field) = @_;
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371 |
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372 | return "" unless (defined ($field) && $field =~ /\w/);
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373 |
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374 | my @components = split /,/, $field;
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375 | if (scalar @components >= 2) {
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376 | splice (@components, 2);
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377 | map {s/^(.).*$/$1/;} @components;
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378 | return join("", @components);
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379 | } else {
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380 | my ($a, $b) = $field =~ /^(.).*?([bcdfghjklmnpqrstvwxyz])/i;
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381 | ($a, $b) = $field =~ /^(.)(.)/ unless defined $a && defined $b;
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382 | return "$a$b";
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383 | }
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384 | }
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385 |
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386 | sub make_unique {
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387 | my $self = shift (@_);
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388 | my ($namehash, $index, $indexref, $subref, $langref) = @_;
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389 | my ($level, $gran, $subcollection, $languages) = split (":", $index);
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390 |
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391 | if ($namehash->{'index'}->{$$indexref} ne "$level:$gran") {
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392 | $self->get_next_version ($indexref);
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393 | } elsif ($namehash->{'subcollection'}->{$$subref} ne $subcollection) {
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394 | $self->get_next_version ($subref);
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395 | } elsif ($namehash->{'languages'}->{$$langref} ne $languages) {
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396 | $self->get_next_version ($langref);
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397 | }
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398 | return "$$indexref$$subref$$langref";
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399 | }
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400 |
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401 | sub get_next_version {
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402 | my $self = shift (@_);
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403 | my ($nameref) = @_;
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404 |
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405 | if ($$nameref =~ /(\d\d)$/) {
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406 | my $num = $1; $num ++;
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407 | $$nameref =~ s/\d\d$/$num/;
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408 | } elsif ($$nameref =~ /(\d)$/) {
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409 | my $num = $1;
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410 | if ($num == 9) {$$nameref =~ s/\d\d$/10/;}
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411 | else {$num ++; $$nameref =~ s/\d$/$num/;}
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412 | } else {
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413 | $$nameref =~ s/.$/0/;
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414 | }
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415 | }
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416 |
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417 | sub build_index {
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418 | my $self = shift (@_);
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419 | my ($index) = @_;
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420 | my $outhandle = $self->{'outhandle'};
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421 |
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422 | # get the full index directory path and make sure it exists
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423 | my $indexdir = $self->{'index_mapping'}->{$index};
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424 | &util::mk_all_dir (&util::filename_cat($self->{'build_dir'}, $indexdir));
|
---|
425 | my $fullindexprefix = &util::filename_cat ($self->{'build_dir'}, $indexdir,
|
---|
426 | $self->{'collection'});
|
---|
427 | my $fulltextprefix = &util::filename_cat ($self->{'build_dir'}, "text",
|
---|
428 | $self->{'collection'});
|
---|
429 |
|
---|
430 | # get any os specific stuff
|
---|
431 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
|
---|
432 | my $exe = &util::get_os_exe ();
|
---|
433 | my $mg_passes_exe = &util::filename_cat($exedir, "mg_passes$exe");
|
---|
434 | my $mg_perf_hash_build_exe =
|
---|
435 | &util::filename_cat($exedir, "mg_perf_hash_build$exe");
|
---|
436 | my $mg_weights_build_exe =
|
---|
437 | &util::filename_cat ($exedir, "mg_weights_build$exe");
|
---|
438 | my $mg_invf_dict_exe =
|
---|
439 | &util::filename_cat ($exedir, "mg_invf_dict$exe");
|
---|
440 | my $mg_stem_idx_exe =
|
---|
441 | &util::filename_cat ($exedir, "mg_stem_idx$exe");
|
---|
442 |
|
---|
443 | my $osextra = "";
|
---|
444 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
|
---|
445 | $fullindexprefix =~ s/\//\\/g;
|
---|
446 | } else {
|
---|
447 | $osextra = " -d /";
|
---|
448 | }
|
---|
449 |
|
---|
450 | # get the index level from the index description
|
---|
451 | # the index will be level 2 unless we are building a
|
---|
452 | # paragraph level index
|
---|
453 | my $index_level = 2;
|
---|
454 | $index_level = 3 if $index =~ /^paragraph/i;
|
---|
455 |
|
---|
456 | # get the index expression if this index belongs
|
---|
457 | # to a subcollection
|
---|
458 | my $indexexparr = [];
|
---|
459 | my ($level, $fields, $subcollection) = split (":", $index);
|
---|
460 | my @subcollections = ();
|
---|
461 | @subcollections = split /,/, $subcollection if (defined $subcollection);
|
---|
462 |
|
---|
463 | foreach $subcollection (@subcollections) {
|
---|
464 | if (defined ($self->{'collect_cfg'}->{'subcollection'}->{$subcollection})) {
|
---|
465 | push (@$indexexparr, $self->{'collect_cfg'}->{'subcollection'}->{$subcollection});
|
---|
466 | }
|
---|
467 | }
|
---|
468 |
|
---|
469 | # add expressions for languages if this index belongs to
|
---|
470 | # a language subcollection
|
---|
471 | foreach $language (@{$self->{'collect_cfg'}->{'languages'}}) {
|
---|
472 | if ($language =~ s/^\!//) {
|
---|
473 | push (@$indexexparr, "!Language/$language/");
|
---|
474 | } else {
|
---|
475 | push (@$indexexparr, "Language/$language/");
|
---|
476 | }
|
---|
477 | }
|
---|
478 |
|
---|
479 | # Build index dictionary. Uses verbatim stem method
|
---|
480 | print $outhandle "\n creating index dictionary\n" if ($self->{'verbosity'} >= 1);
|
---|
481 | my ($handle);
|
---|
482 | if ($self->{'debug'}) {
|
---|
483 | $handle = STDOUT;
|
---|
484 | } else {
|
---|
485 | if (!-e "$mg_passes_exe" ||
|
---|
486 | !open (PIPEOUT, "| $mg_passes_exe -f $fullindexprefix -b $maxdocsize " .
|
---|
487 | "-$index_level -m 32 -s 0 -G -t 10 -N1 $osextra")) {
|
---|
488 | die "mgbuilder::build_index - couldn't run $mg_passes_exe\n";
|
---|
489 | }
|
---|
490 | $handle = mgbuilder::PIPEOUT;
|
---|
491 | }
|
---|
492 |
|
---|
493 | # set up the document processor
|
---|
494 | $self->{'buildproc'}->set_output_handle ($handle);
|
---|
495 | $self->{'buildproc'}->set_mode ('text');
|
---|
496 | $self->{'buildproc'}->set_index ($index, $indexexparr);
|
---|
497 | $self->{'buildproc'}->set_indexing_text (1);
|
---|
498 |
|
---|
499 | $self->{'buildproc'}->reset();
|
---|
500 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
|
---|
501 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
|
---|
502 | close ($handle) unless $self->{'debug'};
|
---|
503 |
|
---|
504 | $self->print_stats();
|
---|
505 |
|
---|
506 | if (!$self->{'debug'}) {
|
---|
507 | # create the perfect hash function
|
---|
508 | if (!-e "$mg_perf_hash_build_exe") {
|
---|
509 | die "mgbuilder::build_index - couldn't run $mg_perf_hash_build_exe\n";
|
---|
510 | }
|
---|
511 | system ("$mg_perf_hash_build_exe -f $fullindexprefix $osextra");
|
---|
512 |
|
---|
513 | if (!-e "$mg_passes_exe" ||
|
---|
514 | !open ($handle, "| $mg_passes_exe -f $fullindexprefix -b $maxdocsize " .
|
---|
515 | "-$index_level -c 3 -G -t 10 -N2 $osextra")) {
|
---|
516 | die "mgbuilder::build_index - couldn't run $mg_passes_exe\n";
|
---|
517 | }
|
---|
518 | }
|
---|
519 |
|
---|
520 | # invert the text
|
---|
521 | print $outhandle "\n inverting the text\n" if ($self->{'verbosity'} >= 1);
|
---|
522 |
|
---|
523 | $self->{'buildproc'}->reset();
|
---|
524 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
|
---|
525 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
|
---|
526 |
|
---|
527 | $self->print_stats ();
|
---|
528 |
|
---|
529 | if (!$self->{'debug'}) {
|
---|
530 |
|
---|
531 | close ($handle);
|
---|
532 |
|
---|
533 | # create the weights file
|
---|
534 | print $outhandle "\n create the weights file\n" if ($self->{'verbosity'} >= 1);
|
---|
535 | if (!-e "$mg_weights_build_exe") {
|
---|
536 | die "mgbuilder::build_index - couldn't run $mg_weights_build_exe\n";
|
---|
537 | }
|
---|
538 | system ("$mg_weights_build_exe -f $fullindexprefix -t $fulltextprefix $osextra");
|
---|
539 |
|
---|
540 | # create 'on-disk' stemmed dictionary
|
---|
541 | print $outhandle "\n creating 'on-disk' stemmed dictionary\n" if ($self->{'verbosity'} >= 1);
|
---|
542 | if (!-e "$mg_invf_dict_exe") {
|
---|
543 | die "mgbuilder::build_index - couldn't run $mg_invf_dict_exe\n";
|
---|
544 | }
|
---|
545 | system ("$mg_invf_dict_exe -f $fullindexprefix $osextra");
|
---|
546 |
|
---|
547 |
|
---|
548 | # creates stem index files for the various stemming methods
|
---|
549 | print $outhandle "\n creating stem indexes\n" if ($self->{'verbosity'} >= 1);
|
---|
550 | if (!-e "$mg_stem_idx_exe") {
|
---|
551 | die "mgbuilder::build_index - couldn't run $mg_stem_idx_exe\n";
|
---|
552 | }
|
---|
553 | system ("$mg_stem_idx_exe -b 4096 -s1 -f $fullindexprefix $osextra");
|
---|
554 | system ("$mg_stem_idx_exe -b 4096 -s2 -f $fullindexprefix $osextra");
|
---|
555 | system ("$mg_stem_idx_exe -b 4096 -s3 -f $fullindexprefix $osextra");
|
---|
556 |
|
---|
557 |
|
---|
558 | # remove unwanted files
|
---|
559 | my $tmpdir = &util::filename_cat ($self->{'build_dir'}, $indexdir);
|
---|
560 | opendir (DIR, $tmpdir) || die
|
---|
561 | "mgbuilder::build_index - couldn't read directory $tmpdir\n";
|
---|
562 | foreach $file (readdir(DIR)) {
|
---|
563 | next if $file =~ /^\./;
|
---|
564 | my ($suffix) = $file =~ /\.([^\.]+)$/;
|
---|
565 | if (defined $suffix && !defined $wanted_index_files{$suffix}) {
|
---|
566 | # delete it!
|
---|
567 | print $outhandle "deleting $file\n" if $self->{'verbosity'} > 2;
|
---|
568 | &util::rm (&util::filename_cat ($tmpdir, $file));
|
---|
569 | }
|
---|
570 | }
|
---|
571 | closedir (DIR);
|
---|
572 | }
|
---|
573 | }
|
---|
574 |
|
---|
575 | sub make_infodatabase {
|
---|
576 | my $self = shift (@_);
|
---|
577 | my $outhandle = $self->{'outhandle'};
|
---|
578 |
|
---|
579 | my $textdir = &util::filename_cat($self->{'build_dir'}, "text");
|
---|
580 | my $assocdir = &util::filename_cat($self->{'build_dir'}, "assoc");
|
---|
581 | &util::mk_all_dir ($textdir);
|
---|
582 | &util::mk_all_dir ($assocdir);
|
---|
583 |
|
---|
584 | # get db name
|
---|
585 | my $dbext = ".bdb";
|
---|
586 | $dbext = ".ldb" if &util::is_little_endian();
|
---|
587 | my $fulldbname = &util::filename_cat ($textdir, "$self->{'collection'}$dbext");
|
---|
588 | $fulldbname =~ s/\//\\/g if ($ENV{'GSDLOS'} =~ /^windows$/i);
|
---|
589 |
|
---|
590 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
|
---|
591 | my $exe = &util::get_os_exe ();
|
---|
592 | my $txt2db_exe = &util::filename_cat($exedir, "txt2db$exe");
|
---|
593 |
|
---|
594 | print $outhandle "\n*** creating the info database and processing associated files\n"
|
---|
595 | if ($self->{'verbosity'} >= 1);
|
---|
596 |
|
---|
597 | # init all the classifiers
|
---|
598 | &classify::init_classifiers ($self->{'classifiers'});
|
---|
599 |
|
---|
600 | # set up the document processor
|
---|
601 | my ($handle);
|
---|
602 | if ($self->{'debug'}) {
|
---|
603 | $handle = STDOUT;
|
---|
604 | } else {
|
---|
605 | if (!-e "$txt2db_exe" || !open (PIPEOUT, "| $txt2db_exe $fulldbname")) {
|
---|
606 | die "mgbuilder::make_infodatabase - couldn't run $txt2db_exe\n";
|
---|
607 | }
|
---|
608 | $handle = mgbuilder::PIPEOUT;
|
---|
609 | }
|
---|
610 |
|
---|
611 | $self->{'buildproc'}->set_output_handle ($handle);
|
---|
612 | $self->{'buildproc'}->set_mode ('infodb');
|
---|
613 | $self->{'buildproc'}->set_assocdir ($assocdir);
|
---|
614 | $self->{'buildproc'}->set_dontgdbm ($self->{'dontgdbm'});
|
---|
615 | $self->{'buildproc'}->set_classifiers ($self->{'classifiers'});
|
---|
616 | $self->{'buildproc'}->set_indexing_text (0);
|
---|
617 | $self->{'buildproc'}->reset();
|
---|
618 |
|
---|
619 | if (defined $self->{'collect_cfg'}->{'collectionmeta'}) {
|
---|
620 |
|
---|
621 | if (!defined $self->{'index_mapping'}) {
|
---|
622 | $self->{'index_mapping'} =
|
---|
623 | $self->create_index_mapping ($self->{'collect_cfg'}->{'indexes'});
|
---|
624 | }
|
---|
625 |
|
---|
626 | print $handle "[collection]\n";
|
---|
627 |
|
---|
628 | foreach $cmeta (keys (%{$self->{'collect_cfg'}->{'collectionmeta'}})) {
|
---|
629 | if ($cmeta =~ s/^\.//) {
|
---|
630 | if (defined $self->{'index_mapping'}->{$cmeta}) {
|
---|
631 | print $handle "<$self->{'index_mapping'}->{$cmeta}>" .
|
---|
632 | $self->{'collect_cfg'}->{'collectionmeta'}->{".$cmeta"} . "\n";
|
---|
633 | } else {
|
---|
634 | print $outhandle "mgbuilder: warning bad collectionmeta option '$cmeta' - ignored\n";
|
---|
635 | }
|
---|
636 | } else {
|
---|
637 | print $handle "<$cmeta>$self->{'collect_cfg'}->{'collectionmeta'}->{$cmeta}\n";
|
---|
638 | }
|
---|
639 | }
|
---|
640 | print $handle "\n" . ('-' x 70) . "\n";
|
---|
641 |
|
---|
642 | }
|
---|
643 |
|
---|
644 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
|
---|
645 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
|
---|
646 |
|
---|
647 | # output classification information
|
---|
648 | &classify::output_classify_info ($self->{'classifiers'}, $handle,
|
---|
649 | $self->{'allclassifications'});
|
---|
650 |
|
---|
651 | close ($handle) if !$self->{'debug'};
|
---|
652 | }
|
---|
653 |
|
---|
654 | sub collect_specific {
|
---|
655 | my $self = shift (@_);
|
---|
656 | }
|
---|
657 |
|
---|
658 | sub make_auxiliary_files {
|
---|
659 | my $self = shift (@_);
|
---|
660 | my ($index);
|
---|
661 | my %build_cfg = ();
|
---|
662 | my $outhandle = $self->{'outhandle'};
|
---|
663 |
|
---|
664 | print $outhandle "\n*** creating auxiliary files \n" if ($self->{'verbosity'} >= 1);
|
---|
665 |
|
---|
666 | # get the text directory
|
---|
667 | &util::mk_all_dir ($self->{'build_dir'});
|
---|
668 |
|
---|
669 | # store the build date
|
---|
670 | $build_cfg->{'builddate'} = time;
|
---|
671 |
|
---|
672 | # store the number of documents and number of bytes
|
---|
673 | $build_cfg->{'numdocs'} = $self->{'buildproc'}->get_num_docs();
|
---|
674 | $build_cfg->{'numbytes'} = $self->{'buildproc'}->get_num_bytes();
|
---|
675 |
|
---|
676 | # get additional stats from mg
|
---|
677 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
|
---|
678 | my $exe = &util::get_os_exe ();
|
---|
679 | my $mgstat_exe = &util::filename_cat($exedir, "mgstat$exe");
|
---|
680 | my $input_file = &util::filename_cat ("text", $self->{'collection'});
|
---|
681 | if (!-e "$mgstat_exe" || !open (PIPEIN, "$mgstat_exe -d $self->{'build_dir'} -f $input_file |")) {
|
---|
682 | print $outhandle "Warning: Couldn't open pipe to $mgstat_exe to get additional stats\n";
|
---|
683 | } else {
|
---|
684 | my $line = "";
|
---|
685 | while (defined ($line = <PIPEIN>)) {
|
---|
686 | if ($line =~ /^Words in collection \[dict\]\s+:\s+(\d+)/) {
|
---|
687 | ($build_cfg->{'numwords'}) = $1;
|
---|
688 | } elsif ($line =~ /^Documents\s+:\s+(\d+)/) {
|
---|
689 | ($build_cfg->{'numsections'}) = $1;
|
---|
690 | }
|
---|
691 | }
|
---|
692 | close PIPEIN;
|
---|
693 | }
|
---|
694 |
|
---|
695 | # store the mapping between the index names and the directory names
|
---|
696 | my @indexmap = ();
|
---|
697 | foreach $index (@{$self->{'index_mapping'}->{'indexmaporder'}}) {
|
---|
698 | push (@indexmap, "$index\-\>$self->{'index_mapping'}->{'indexmap'}->{$index}");
|
---|
699 | }
|
---|
700 | $build_cfg->{'indexmap'} = \@indexmap;
|
---|
701 |
|
---|
702 | my @subcollectionmap = ();
|
---|
703 | foreach $subcollection (@{$self->{'index_mapping'}->{'subcollectionmaporder'}}) {
|
---|
704 | push (@subcollectionmap, "$subcollection\-\>" .
|
---|
705 | $self->{'index_mapping'}->{'subcollectionmap'}->{$subcollection});
|
---|
706 | }
|
---|
707 | $build_cfg->{'subcollectionmap'} = \@subcollectionmap if scalar (@subcollectionmap);
|
---|
708 |
|
---|
709 | my @languagemap = ();
|
---|
710 | foreach $language (@{$self->{'index_mapping'}->{'languagemaporder'}}) {
|
---|
711 | push (@languagemap, "$language\-\>" .
|
---|
712 | $self->{'index_mapping'}->{'languagemap'}->{$language});
|
---|
713 | }
|
---|
714 | $build_cfg->{'languagemap'} = \@languagemap if scalar (@languagemap);
|
---|
715 |
|
---|
716 | $build_cfg->{'notbuilt'} = $self->{'notbuilt'} if scalar @{$self->{'notbuilt'}};
|
---|
717 |
|
---|
718 | # write out the build information
|
---|
719 | &cfgread::write_cfg_file("$self->{'build_dir'}/build.cfg", $build_cfg,
|
---|
720 | '^(builddate|numdocs|numbytes|numwords|numsections)$',
|
---|
721 | '^(indexmap|subcollectionmap|languagemap|notbuilt)$');
|
---|
722 |
|
---|
723 | }
|
---|
724 |
|
---|
725 | sub deinit {
|
---|
726 | my $self = shift (@_);
|
---|
727 | }
|
---|
728 |
|
---|
729 | sub print_stats {
|
---|
730 | my $self = shift (@_);
|
---|
731 |
|
---|
732 | my $outhandle = $self->{'outhandle'};
|
---|
733 | my $indexing_text = $self->{'buildproc'}->get_indexing_text();
|
---|
734 | my $index = $self->{'buildproc'}->get_index();
|
---|
735 | my $num_bytes = $self->{'buildproc'}->get_num_bytes();
|
---|
736 | my $num_processed_bytes = $self->{'buildproc'}->get_num_processed_bytes();
|
---|
737 |
|
---|
738 | if ($indexing_text) {
|
---|
739 | print $outhandle "Stats (Creating index $index)\n";
|
---|
740 | } else {
|
---|
741 | print $outhandle "Stats (Compressing text from $index)\n";
|
---|
742 | }
|
---|
743 | print $outhandle "Total bytes in collection: $num_bytes\n";
|
---|
744 | print $outhandle "Total bytes in $index: $num_processed_bytes\n";
|
---|
745 |
|
---|
746 | if ($num_processed_bytes < 50) {
|
---|
747 | print $outhandle "***************\n";
|
---|
748 | print $outhandle "WARNING: There is very little or no text to process for $index\n";
|
---|
749 | if ($indexing_text) {
|
---|
750 | print $outhandle "This may cause an error while attempting to build the index\n";
|
---|
751 | } else {
|
---|
752 | print $outhandle "This may cause an error while attempting to compress the text\n";
|
---|
753 | }
|
---|
754 | print $outhandle "***************\n";
|
---|
755 | }
|
---|
756 | }
|
---|
757 |
|
---|
758 | 1;
|
---|
759 |
|
---|
760 |
|
---|