1 | ###########################################################################
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2 | #
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3 | # solrbuildproc.pm -- perl wrapper for building index with Solr
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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 solrbuildproc;
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27 |
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28 | # This document processor outputs a document for solr to process
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29 |
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30 | # Rather then use the XML structure developed for mgppbuilder/mgppbuildproc
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31 | # whose use was then extended to Lucene, Solr has its own XML syntax:
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32 | #
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33 | # http://wiki.apache.org/solr/UpdateXmlMessages
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34 | #
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35 | # Using this means we don't need to write SolrWrapper.jar, as had to be
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36 | # done for Lucene, translating the XML syntax piped to it into appropriate
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37 | # calls to the Lucene API
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38 |
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39 |
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40 | use lucenebuildproc;
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41 | use ghtml;
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42 | use strict;
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43 | no strict 'refs'; # allow filehandles to be variables and viceversa
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44 |
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45 |
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46 | use IncrementalBuildUtils;
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47 |
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48 | sub BEGIN {
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49 | @solrbuildproc::ISA = ('lucenebuildproc');
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50 | }
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51 |
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52 |
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53 | sub new {
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54 | my $class = shift @_;
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55 | my $self = new lucenebuildproc (@_);
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56 |
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57 | return bless $self, $class;
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58 | }
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59 |
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60 |
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61 | #----
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62 |
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63 | sub index_field_mapping_edit {
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64 | my $self = shift (@_);
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65 | my ($doc_obj,$file,$edit_mode) = @_;
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66 |
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67 | # Only add/update gets to here
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68 | # Currently there is no need to distinguish between these edit modes
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69 |
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70 | my $outhandle = $self->{'outhandle'};
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71 |
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72 | # only study this document if it is one to be indexed
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73 | return if ($doc_obj->get_doc_type() ne "indexed_doc");
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74 |
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75 | my $indexed_doc = $self->is_subcollection_doc($doc_obj);
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76 |
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77 | # get the parameters for the output
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78 | # split on : just in case there is subcoll and lang stuff
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79 | my ($fields) = split (/:/, $self->{'index'});
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80 |
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81 | my $doc_section = 0; # just for this document
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82 |
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83 | # get the text for this document
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84 | my $section = $doc_obj->get_top_section();
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85 |
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86 | while (defined $section)
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87 | {
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88 | $doc_section++;
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89 |
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90 | # if we are doing subcollections, then some docs shouldn't be
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91 | # considered for indexing
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92 |
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93 | my $indexed_section
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94 | = $doc_obj->get_metadata_element($section, "gsdldoctype")
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95 | || "indexed_section";
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96 |
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97 | if (($indexed_doc == 0)
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98 | || ($indexed_section ne "indexed_section" && $indexed_section ne "indexed_doc")) {
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99 | $section = $doc_obj->get_next_section($section);
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100 | next;
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101 | }
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102 |
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103 | # has the user added a 'metadata' index?
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104 | my $all_metadata_specified = 0;
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105 |
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106 | # which fields have already been indexed?
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107 | # (same as fields, but in a map)
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108 | my $specified_fields = {};
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109 |
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110 | # do we have an allfields index??
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111 | my $allfields_index = 0;
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112 |
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113 | # collect up all the text for it in here
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114 | my $allfields_text = "";
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115 |
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116 | foreach my $field (split (/;/, $fields)) {
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117 | if ($field eq "allfields") {
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118 | $allfields_index = 1;
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119 | } elsif ($field eq "metadata") {
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120 | $all_metadata_specified = 1;
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121 | }
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122 | }
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123 |
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124 | foreach my $field (split (/;/, $fields)) {
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125 |
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126 | # only deal with this field if it doesn't start with top or
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127 | # this is the first section
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128 | my $real_field = $field;
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129 | next if (($real_field =~ s/^top//) && ($doc_section != 1));
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130 |
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131 | # process these two later
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132 | next if ($real_field eq "allfields" || $real_field eq "metadata");
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133 |
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134 | # individual metadata and or text specified
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135 | # -- could be a comma separated list
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136 | $specified_fields->{$real_field} = 1;
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137 |
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138 | if (!defined $self->{'indexfieldmap'}->{$real_field}) {
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139 | my $shortname = $self->create_shortname($real_field);
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140 | $self->{'indexfieldmap'}->{$real_field} = $shortname;
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141 | $self->{'indexfieldmap'}->{$shortname} = 1;
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142 | }
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143 | } # foreach field
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144 |
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145 |
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146 | if ($all_metadata_specified) {
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147 |
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148 | my $new_text = "";
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149 | my $shortname = "";
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150 | my $metadata = $doc_obj->get_all_metadata ($section);
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151 |
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152 | foreach my $pair (@$metadata) {
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153 | my ($mfield, $mvalue) = (@$pair);
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154 |
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155 | # no value
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156 | next unless defined $mvalue && $mvalue ne "";
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157 |
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158 | # we have already indexed this
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159 | next if defined ($specified_fields->{$mfield});
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160 |
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161 | # check fields here, maybe others dont want - change to use dontindex!!
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162 | next if ($mfield eq "Identifier" || $mfield eq "classifytype" || $mfield eq "assocfilepath");
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163 | next if ($mfield =~ /^gsdl/);
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164 |
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165 | if (defined $self->{'indexfieldmap'}->{$mfield}) {
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166 | $shortname = $self->{'indexfieldmap'}->{$mfield};
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167 | }
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168 | else {
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169 | $shortname = $self->create_shortname($mfield);
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170 | $self->{'indexfieldmap'}->{$mfield} = $shortname;
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171 | $self->{'indexfieldmap'}->{$shortname} = 1;
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172 | }
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173 |
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174 | if (!defined $self->{'indexfields'}->{$mfield}) {
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175 | $self->{'indexfields'}->{$mfield} = 1;
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176 | }
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177 | }
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178 | }
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179 |
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180 | if ($allfields_index) {
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181 | # add the index name mapping
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182 | $self->{'indexfieldmap'}->{"allfields"} = "ZZ";
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183 | $self->{'indexfieldmap'}->{"ZZ"} = 1;
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184 | }
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185 |
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186 | $section = $doc_obj->get_next_section($section);
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187 |
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188 | } # while defined section
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189 |
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190 |
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191 | }
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192 |
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193 | sub index_field_mapping {
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194 | my $self = shift (@_);
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195 | my ($doc_obj,$file) = @_;
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196 |
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197 | $self->index_field_mapping_edit($doc_obj,$file,"add");
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198 | }
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199 |
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200 | sub index_field_mappingreindex
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201 | {
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202 | my $self = shift (@_);
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203 | my ($doc_obj,$file) = @_;
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204 |
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205 | $self->index_field_mapping_edit($doc_obj,$file,"update");
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206 | }
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207 |
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208 | sub index_field_mappingdelete
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209 | {
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210 | my $self = shift (@_);
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211 | my ($doc_obj,$file) = @_;
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212 |
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213 | return; # nothing to be done
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214 | }
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215 |
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216 |
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217 | #----
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218 |
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219 | sub textedit {
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220 | my $self = shift (@_);
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221 | my ($doc_obj,$file,$edit_mode) = @_;
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222 |
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223 |
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224 | if (!$self->get_indexing_text()) {
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225 | # In text-compress mode:
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226 | # => want document to be output in the simple <Doc>..</Doc> as is
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227 | # done by its super-class
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228 | return $self->SUPER::textedit(@_);
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229 | }
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230 |
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231 | # "update" for $edit_mode near identical to "add" as we use Solr in its
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232 | # default mode of replacing an existing document if the new document
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233 | # has the same doc id. Main area of difference between "add" and "update"
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234 | # is that we do not update our 'stats' for number of documents or number
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235 | # of bytes processed. The latter is inaccurate, but considered better
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236 | # than allowing the value to steadily climb.
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237 |
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238 |
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239 | my $solrhandle = $self->{'output_handle'};
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240 | my $outhandle = $self->{'outhandle'};
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241 |
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242 | # only output this document if it is one to be indexed
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243 | return if ($doc_obj->get_doc_type() ne "indexed_doc");
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244 |
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245 | # skip this document if in "compress-text" mode and asked to delete it
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246 | return if (!$self->get_indexing_text() && ($edit_mode eq "delete"));
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247 |
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248 | my $indexed_doc = $self->is_subcollection_doc($doc_obj);
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249 |
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250 | # this is another document
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251 | if ($edit_mode eq "add") {
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252 | $self->{'num_docs'} += 1;
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253 | }
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254 | elsif ($edit_mode eq "delete") {
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255 | $self->{'num_docs'} -= 1;
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256 | }
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257 |
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258 | # get the parameters for the output
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259 | # split on : just in case there is subcoll and lang stuff
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260 | my ($fields) = split (/:/, $self->{'index'});
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261 |
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262 | my $levels = $self->{'levels'};
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263 | my $ldoc_level = $levels->{'document'};
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264 | my $lsec_level = $levels->{'section'};
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265 |
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266 | my $gs2_docOID = $doc_obj->get_OID();
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267 |
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268 |
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269 | my $start_doc;
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270 | my $end_doc;
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271 |
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272 | if ($edit_mode eq "add") {
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273 | $start_doc = " <add>\n";
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274 | $start_doc .= " <doc>\n";
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275 | $start_doc .= " <field name=\"docOID\">$gs2_docOID</field>\n";
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276 |
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277 | $end_doc = " </doc>\n";
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278 | $end_doc .= " </add>\n";
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279 | }
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280 | else {
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281 | $start_doc = " <delete>\n";
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282 | $start_doc .= " <id>$gs2_docOID</id>\n";
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283 |
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284 | $end_doc = " </delete>\n";
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285 | }
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286 |
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287 | # add/update, delete
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288 |
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289 | my $sec_tag_name = "";
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290 | if ($lsec_level)
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291 | {
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292 | $sec_tag_name = $mgppbuildproc::level_map{'section'};
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293 | }
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294 |
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295 | my $doc_section = 0; # just for this document
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296 |
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297 | # only output if working with doc level
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298 | my $text = $start_doc if ($sec_tag_name eq "");
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299 |
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300 | # get the text for this document
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301 | my $section = $doc_obj->get_top_section();
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302 |
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303 | while (defined $section)
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304 | {
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305 | # update a few statistics
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306 | $doc_section++;
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307 | $self->{'num_sections'}++;
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308 |
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309 | my $sec_gs2_id = $self->{'num_sections'};
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310 | my $sec_gs2_docOID = $gs2_docOID;
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311 | $sec_gs2_docOID .= ".$section" if ($section ne "");
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312 |
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313 | my $start_sec;
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314 | my $end_sec;
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315 |
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316 | if ($edit_mode eq "add") {
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317 | $start_sec = " <add>\n";
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318 | $start_sec .= " <doc>\n";
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319 | $start_sec .= " <field name=\"docOID\">$sec_gs2_docOID</field>\n";
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320 |
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321 | $end_sec = " </doc>\n";
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322 | $end_sec .= " </add>\n";
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323 | }
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324 | else {
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325 | $start_sec = " <delete>\n";
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326 | $start_sec .= " <id>$sec_gs2_docOID</id>\n";
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327 |
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328 | $end_sec = " </delete>\n";
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329 | }
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330 |
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331 |
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332 | # if we are doing subcollections, then some docs shouldn't be indexed.
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333 | # but we need to put the section tag placeholders in there so the
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334 | # sections match up with database
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335 | my $indexed_section = $doc_obj->get_metadata_element($section, "gsdldoctype") || "indexed_section";
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336 | if (($indexed_doc == 0) || ($indexed_section ne "indexed_section" && $indexed_section ne "indexed_doc")) {
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337 | if ($sec_tag_name ne "") {
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338 | $text .= $start_sec;
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339 | $text .= $end_sec;
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340 | }
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341 | $section = $doc_obj->get_next_section($section);
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342 | next;
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343 | }
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344 |
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345 | # add in start section tag if indexing at the section level
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346 | $text .= $start_sec if ($sec_tag_name ne "");
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347 |
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348 | if ($edit_mode eq "add") {
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349 | $self->{'num_bytes'} += $doc_obj->get_text_length ($section);
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350 | }
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351 | elsif ($edit_mode eq "delete") {
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352 | $self->{'num_bytes'} -= $doc_obj->get_text_length ($section);
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353 | }
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354 |
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355 |
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356 | # has the user added a 'metadata' index?
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357 | my $all_metadata_specified = 0;
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358 | # which fields have already been indexed? (same as fields, but in a map)
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359 | my $specified_fields = {};
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360 |
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361 | # do we have an allfields index??
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362 | my $allfields_index = 0;
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363 | # collect up all the text for it in here
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364 | my $allfields_text = "";
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365 | foreach my $field (split (/;/, $fields)) {
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366 | if ($field eq "allfields") {
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367 | $allfields_index = 1;
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368 | } elsif ($field eq "metadata") {
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369 | $all_metadata_specified = 1;
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370 | }
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371 | }
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372 |
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373 | foreach my $field (split (/;/, $fields)) {
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374 |
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375 | # only deal with this field if it doesn't start with top or
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376 | # this is the first section
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377 | my $real_field = $field;
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378 | next if (($real_field =~ s/^top//) && ($doc_section != 1));
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379 |
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380 | # process these two later
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381 | next if ($real_field eq "allfields" || $real_field eq "metadata");
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382 |
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383 | #individual metadata and or text specified - could be a comma separated list
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384 | $specified_fields->{$real_field} = 1;
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385 | my $shortname="";
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386 | my $new_field = 0; # have we found a new field name?
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387 | if (defined $self->{'indexfieldmap'}->{$real_field}) {
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388 | $shortname = $self->{'indexfieldmap'}->{$real_field};
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389 | }
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390 | else {
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391 | $shortname = $self->create_shortname($real_field);
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392 | $new_field = 1;
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393 | }
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394 |
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395 | my @metadata_list = (); # put any metadata values in here
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396 | my $section_text = ""; # put the text in here
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397 | foreach my $submeta (split /,/, $real_field) {
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398 | if ($submeta eq "text") {
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399 | # no point in indexing text more than once
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400 | if ($section_text eq "") {
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401 | $section_text = $doc_obj->get_text($section);
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402 | if ($self->{'indexing_text'}) {
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403 | # we always strip html
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404 | $section_text = $self->preprocess_text($section_text, 1, "");
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405 | }
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406 | else {
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407 | # leave html stuff in, but escape the tags
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408 | &ghtml::htmlsafe($section_text);
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409 | }
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410 | }
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411 | }
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412 | else {
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413 | $submeta =~ s/^ex\.//; #strip off ex.
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414 |
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415 | # its a metadata element
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416 | my @section_metadata = @{$doc_obj->get_metadata ($section, $submeta)};
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417 | if ($section ne $doc_obj->get_top_section() && $self->{'indexing_text'} && defined ($self->{'sections_index_document_metadata'})) {
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418 | if ($self->{'sections_index_document_metadata'} eq "always" || ( scalar(@section_metadata) == 0 && $self->{'sections_index_document_metadata'} eq "unless_section_metadata_exists")) {
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419 | push (@section_metadata, @{$doc_obj->get_metadata ($doc_obj->get_top_section(), $submeta)});
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420 | }
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421 | }
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422 | push (@metadata_list, @section_metadata);
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423 | }
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424 | } # for each field in this one index
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425 |
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426 | # now we add the text and/or metadata into new_text
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427 | if ($section_text ne "" || scalar(@metadata_list)) {
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428 | my $new_text = "";
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429 |
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430 | if ($section_text ne "") {
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431 | $new_text .= "$section_text ";
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432 | }
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433 |
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434 | foreach my $item (@metadata_list) {
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435 | &ghtml::htmlsafe($item);
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436 | $new_text .= "$item ";
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437 | }
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438 |
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439 | if ($allfields_index) {
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440 | $allfields_text .= $new_text;
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441 | }
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442 |
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443 | if ($self->{'indexing_text'}) {
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444 | # add the tag
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445 | $new_text = "<field name=\"$shortname\" >$new_text</field>\n";
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446 | }
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447 | # filter the text
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448 | $new_text = $self->filter_text ($field, $new_text);
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449 |
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450 | if ($edit_mode eq "add") {
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451 | $self->{'num_processed_bytes'} += length ($new_text);
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452 | $text .= "$new_text";
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453 | }
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454 | elsif ($edit_mode eq "update") {
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455 | $text .= "$new_text";
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456 | }
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457 | elsif ($edit_mode eq "delete") {
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458 | $self->{'num_processed_bytes'} -= length ($new_text);
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459 | }
|
---|
460 |
|
---|
461 |
|
---|
462 | if ($self->{'indexing_text'} && $new_field) {
|
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463 | # we need to add to the list in indexfields
|
---|
464 |
|
---|
465 | $self->{'indexfieldmap'}->{$real_field} = $shortname;
|
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466 | $self->{'indexfieldmap'}->{$shortname} = 1;
|
---|
467 | }
|
---|
468 |
|
---|
469 | }
|
---|
470 |
|
---|
471 | } # foreach field
|
---|
472 |
|
---|
473 |
|
---|
474 | if ($all_metadata_specified) {
|
---|
475 |
|
---|
476 | my $new_text = "";
|
---|
477 | my $shortname = "";
|
---|
478 | my $metadata = $doc_obj->get_all_metadata ($section);
|
---|
479 | foreach my $pair (@$metadata) {
|
---|
480 | my ($mfield, $mvalue) = (@$pair);
|
---|
481 |
|
---|
482 | # no value
|
---|
483 | next unless defined $mvalue && $mvalue ne "";
|
---|
484 |
|
---|
485 | # we have already indexed this
|
---|
486 | next if defined ($specified_fields->{$mfield});
|
---|
487 |
|
---|
488 | # check fields here, maybe others dont want - change to use dontindex!!
|
---|
489 | next if ($mfield eq "Identifier" || $mfield eq "classifytype" || $mfield eq "assocfilepath");
|
---|
490 | next if ($mfield =~ /^gsdl/);
|
---|
491 |
|
---|
492 | &ghtml::htmlsafe($mvalue);
|
---|
493 |
|
---|
494 | if (defined $self->{'indexfieldmap'}->{$mfield}) {
|
---|
495 | $shortname = $self->{'indexfieldmap'}->{$mfield};
|
---|
496 | }
|
---|
497 | else {
|
---|
498 | $shortname = $self->create_shortname($mfield);
|
---|
499 | $self->{'indexfieldmap'}->{$mfield} = $shortname;
|
---|
500 | $self->{'indexfieldmap'}->{$shortname} = 1;
|
---|
501 | }
|
---|
502 | $new_text .= "<field name=\"$shortname\">$mvalue</field>\n";
|
---|
503 | if ($allfields_index) {
|
---|
504 | $allfields_text .= "$mvalue ";
|
---|
505 | }
|
---|
506 |
|
---|
507 | if (!defined $self->{'indexfields'}->{$mfield}) {
|
---|
508 | $self->{'indexfields'}->{$mfield} = 1;
|
---|
509 | }
|
---|
510 |
|
---|
511 | }
|
---|
512 | # filter the text
|
---|
513 | $new_text = $self->filter_text ("metadata", $new_text);
|
---|
514 |
|
---|
515 | if ($edit_mode eq "add") {
|
---|
516 | $self->{'num_processed_bytes'} += length ($new_text);
|
---|
517 | $text .= "$new_text";
|
---|
518 | }
|
---|
519 | elsif ($edit_mode eq "update") {
|
---|
520 | $text .= "$new_text";
|
---|
521 | }
|
---|
522 | elsif ($edit_mode eq "delete") {
|
---|
523 | $self->{'num_processed_bytes'} -= length ($new_text);
|
---|
524 | }
|
---|
525 | }
|
---|
526 |
|
---|
527 | if ($allfields_index) {
|
---|
528 | # add the index name mapping
|
---|
529 | $self->{'indexfieldmap'}->{"allfields"} = "ZZ";
|
---|
530 | $self->{'indexfieldmap'}->{"ZZ"} = 1;
|
---|
531 |
|
---|
532 | my $new_text = "<field name=\"ZZ\">$allfields_text</field>\n";
|
---|
533 | # filter the text
|
---|
534 | $new_text = $self->filter_text ("allfields", $new_text);
|
---|
535 |
|
---|
536 | if ($edit_mode eq "add") {
|
---|
537 | $self->{'num_processed_bytes'} += length ($new_text);
|
---|
538 | $text .= "$new_text";
|
---|
539 | }
|
---|
540 | elsif ($edit_mode eq "update") {
|
---|
541 | $text .= "$new_text";
|
---|
542 | }
|
---|
543 | elsif ($edit_mode eq "delete") {
|
---|
544 | $self->{'num_processed_bytes'} -= length ($new_text);
|
---|
545 | }
|
---|
546 | }
|
---|
547 |
|
---|
548 | # add in end tag if at top-level doc root, or indexing at the section level
|
---|
549 | $text .= $end_sec if ($sec_tag_name ne "");
|
---|
550 |
|
---|
551 | $section = $doc_obj->get_next_section($section);
|
---|
552 | } # while defined section
|
---|
553 |
|
---|
554 |
|
---|
555 | # only output if working with doc level
|
---|
556 | $text .= $end_doc if ($sec_tag_name eq "");
|
---|
557 |
|
---|
558 | ## $text .= "<commit/>\n";
|
---|
559 |
|
---|
560 | print $solrhandle $text;
|
---|
561 |
|
---|
562 | }
|
---|
563 |
|
---|
564 |
|
---|
565 |
|
---|
566 |
|
---|
567 | sub textreindex
|
---|
568 | {
|
---|
569 | my $self = shift (@_);
|
---|
570 | my ($doc_obj,$file) = @_;
|
---|
571 |
|
---|
572 | $self->textedit($doc_obj,$file,"update");
|
---|
573 | }
|
---|
574 |
|
---|
575 |
|
---|
576 | 1;
|
---|
577 |
|
---|
578 |
|
---|