1 | ###########################################################################
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2 | #
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3 | # collConfigxml.pm --
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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 | # reads in configuration files of xml form
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27 |
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28 | package collConfigxml;
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29 | use strict;
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30 | no strict 'refs';
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31 | no strict 'subs';
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32 |
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33 | use XMLParser;
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34 |
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35 | # A mapping hash to resolve name discrepancy between gs2 and gs3.
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36 | # the first item is the gs3 element name from collectionConfig, the second one
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37 | # is the internal name for the option
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38 | my $nameMap = {"key" => "value",
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39 | "creator" => "creator",
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40 | "maintainer" => "maintainer",
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41 | "public" => "public",
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42 | "infodb" => "infodbtype",
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43 | "defaultIndex" => "defaultindex",
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44 | "defaultLevel" => "defaultlevel",
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45 | "name" => "collectionname",
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46 | "description" => "collectionextra",
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47 | "smallicon" => "iconcollectionsmall",
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48 | "icon" => "iconcollection",
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49 | "level" => "levels",
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50 | "classifier" => "classify",
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51 | "indexSubcollection" => "indexsubcollections",
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52 | "indexLanguage" => "languages",
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53 | "defaultIndexLanguage" => "defaultlanguage",
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54 | "index" => "indexes",
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55 | "indexfieldoptions" => "indexfieldoptions",
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56 | "sort" => "sortfields",
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57 | "defaultSort" => "defaultsort",
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58 | "facet" => "facetfields",
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59 | "plugin" => "plugin",
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60 | "plugout" => "plugout",
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61 | "indexOption" => "indexoptions",
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62 | "searchType" => "searchtype",
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63 | "languageMetadata" => "languagemetadata",
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64 | "buildType" => "buildtype",
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65 | "orthogonalBuildTypes" => "orthogonalbuildtypes",
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66 | };
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67 | # A hash structure which is returned by sub read_cfg_file.
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68 | my $data = {};
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69 |
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70 | my $repeatedBlock = q/^(browse|pluginList)$/;
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71 |
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72 | # use those unique attribute values to locate the text within the elements
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73 | # creator, public, maintainer and within a displayItem.
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74 | my $currentLocation = "";
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75 | my $stringexp = q/^(creator|maintainer|public|buildType)$/;
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76 | my $displayItemNames = q/^(name|description)$/;
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77 |
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78 | # these options get set at top level
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79 | my $topleveloptionexp = q/^(importOption|buildOption)$/;
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80 |
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81 | # For storing the attributes during the StartTag subroutine, so that
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82 | # we can use it later in Text (or EndTag) subroutines
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83 | my $currentAttrRef = undef;
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84 |
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85 | my $currentLevel = "";
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86 |
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87 | # Count the elements with same name within the same block
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88 | # ("plugin", "option")
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89 | my $currentIndex = 0;
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90 |
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91 | my $structexp = q/^(index)$/;
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92 | # structexp contains a hashmap of option(name, value) pairs per index name like allfields/ZZ or titles/TI
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93 | # e.g. <index name="allfields">
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94 | # <displayItem ... />
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95 | # <option name="solrfieldtype" value="text_ja" />
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96 | # </index>
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97 |
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98 | my $arrayexp = q/^(sort|facet|level|indexOption|indexSubcollection|indexLanguage|orthogonalBuildTypes)$/;
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99 | #my $arrayexp = q/^(index|sort|facet|level|indexOption|indexSubcollection|indexLanguage|orthogonalBuildTypes)$/;
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100 | my $arrayarrayexp = q/^(plugin|classifier)$/; #|buildOption)$/;
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101 | my $hashexp = q/^(subcollection)$/; # add other element names that should be represented by hash expressions here
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102 | my $hashhashexp = q/^(displayItem)$/; # add other (collectionmeta) element names that should be represented by hashes of hashes here.
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103 |
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104 | my $defaults = q/^(defaultIndex|defaultLevel|defaultSort|defaultIndexLanguage|languageMetadata)$/;
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105 |
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106 | # Reads in the model collection configuration file, collectionConfig.xml,
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107 | # into a structure which complies with the one used by gs2 (i.e. one read
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108 | # in by &cfgread::read_cfg_file).
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109 | sub read_cfg_file {
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110 | my ($filename) = @_;
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111 | $data = {};
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112 | if ($filename !~ /collectionConfig\.xml$/ || !-f $filename) {
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113 | return undef;
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114 | }
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115 | # Removed ProtocolEncoding (see MetadataXMLPlugin for details)
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116 |
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117 | # create XML::Parser object for parsing metadata.xml files
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118 | my $parser = new XML::Parser('Style' => 'Stream',
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119 | 'Pkg' => 'collConfigxml',
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120 | 'Handlers' => {'Char' => \&Char,
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121 | 'Doctype' => \&Doctype
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122 | });
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123 | if (!open (COLCFG, $filename)) {
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124 | print STDERR "cfgread::read_cfg_file couldn't read the cfg file $filename\n";
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125 | } else {
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126 |
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127 | $parser->parsefile ($filename);# (COLCFG);
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128 | close (COLCFG);
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129 | }
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130 |
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131 | #&Display;
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132 | return $data;
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133 | }
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134 |
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135 | sub StartTag {
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136 | # Those marked with #@ will not be executed at the same time when this sub is being called
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137 | # so that if/elsif is used to avoid unnecessary tests
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138 | my ($expat, $element) = @_;
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139 |
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140 | # See http://search.cpan.org/~msergeant/XML-Parser-2.36/Parser.pm#Stream
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141 | # %_ is a hash of all the attributes of this element, we want to store them so we can use the attributes
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142 | # when the textnode contents of the element are parsed in the subroutine Text (that's the handler for Text).
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143 | $currentAttrRef = \%_;
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144 |
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145 | my $name = $_{'name'};
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146 | my $value = $_{'value'};
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147 | my $type = $_{'type'};
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148 | my $orthogonal = $_{'orthogonal'};
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149 |
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150 | # for subcollections
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151 | my $filter = $_{'filter'};
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152 |
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153 | # was this just a flax thing??
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154 | my $assigned = $_{'assigned'};
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155 |
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156 | #@ Marking repeated block
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157 | if ($element =~ /$repeatedBlock/) {
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158 | $currentIndex = 0;
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159 | }
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160 |
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161 | #@ handling block metadataList
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162 | elsif (defined $name and $name =~ /$stringexp/){
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163 | $currentLocation = $name;
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164 | }
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165 | #@ handling default search index/level/indexLanguage and languageMetadata
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166 | elsif ($element =~ /$defaults/) {
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167 | if (defined $name and $name =~ /\w/) {
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168 | $data->{$nameMap->{$element}} = $name;
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169 | }
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170 | }
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171 |
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172 | #@ handling the displayItems name and description (known as collectionname and collectionextra in GS2)
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173 | elsif($element eq "displayItemList") {
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174 | $currentLevel = "displayItemList"; # storing the parent if it is displayItemList
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175 | }
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176 | elsif($element =~ /$hashhashexp/) { # can expand on this to check for other collectionmeta elements
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177 | if((!defined $assigned) || (defined $assigned and $assigned =~ /\w/ and $assigned eq "true")) {
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178 | # either when there is no "assigned" attribute, or when assigned=true (for displayItems):
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179 | $currentLocation = $name;
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180 | }
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181 | }
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182 |
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183 | #@ Handling database type: gdbm or gdbm-txtgz, later jdbm.
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184 | elsif ($element eq "infodb") {
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185 | $data->{'infodbtype'} = $type;
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186 | }
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187 |
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188 | #@ Handling indexer: mgpp/mg/lucene; stringexp
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189 | #@ Handling orthogonal indexers: audioDB; arrayexp
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190 | elsif ($element eq "search") {
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191 | if ((defined $orthogonal) && ($orthogonal =~ m/^(true|on|1)$/i)) {
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192 | push(@{$data->{'orthogonalbuildtypes'}},$type);
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193 | my $service_rack = $_{'serviceRack'};
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194 | if ((defined $service_rack) && $service_rack =~ /\w/) {
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195 | $data->{'orthogonalcustomservicerack'}->{$type} = $service_rack;;
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196 | }
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197 | }
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198 | else {
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199 | $data->{'buildtype'} = $type;
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200 | }
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201 | }
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202 |
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203 | elsif ($element eq "store_metadata_coverage")
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204 | {
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205 | ## print STDERR "*&*&*&*&*& HERE &*&*&*&*&*&*";
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206 | $data->{'store_metadata_coverage'} = $value;
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207 | }
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208 |
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209 | #@ Handling searchtype: plain,form; arrayexp
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210 | #elsif ($element eq "format" and defined $name and $name =~ /searchType/) {
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211 | #@ Handling searchtype: plain, form
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212 | #$currentLocation = $name;
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213 | #}
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214 |
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215 | #@ Handle sort|facet|level|indexOption|indexSubcollection|indexLanguage
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216 | elsif ($element =~ /$arrayexp/) {
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217 | my $key = $nameMap->{$element}; #
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218 | if (!defined $data->{$key}) {
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219 | $data->{$key} = [];
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220 | }
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221 |
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222 | if (defined $name) {
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223 | push (@{$data->{$key}},$name);
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224 | }
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225 | }
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226 |
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227 | #@ Handle index which can have options as children to be put in a map: <option name="name" value="value" />
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228 | elsif ($element =~ /$structexp/) {
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229 | # find the gs2 mapping name
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230 | $currentLevel = $element;
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231 |
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232 | # for GS2, 'indexes' should be an arrayexp, so maintain that part of the code as it is
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233 | my $key = $nameMap->{$element}; # 'indexes'
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234 | if (!defined $data->{$key}) {
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235 | $data->{$key} = [];
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236 | }
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237 |
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238 | if (defined $name) {
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239 | push (@{$data->{$key}},$name);
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240 | }
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241 | }
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242 |
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243 | #@ Handling the option elements in each index structure, if any, only for GS2
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244 | elsif ($currentLevel =~ /$structexp/ && $element eq "option") {
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245 | # find the gs2 mapping name for classifier and plugin
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246 | my $key = $nameMap->{$currentLevel."fieldoptions"}; # my $key = $currentLevel."fieldoptions"; # indexfieldoptions
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247 |
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248 | # The last element of the 'indexes' array contains the name of the index currently being processed
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249 | # e.g. "allfields"
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250 | my $indexKey = $nameMap->{$currentLevel}; # 'indexes'
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251 | my $arrSize = scalar( @{$data->{$indexKey}} ); # length of 'indexes' array
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252 | my $indexName = @{$data->{$indexKey}}[$arrSize-1]; # name of index currently being processed in prev elsif
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253 |
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254 | if (!defined $data->{$key}) {
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255 | $data->{$key} = {}; # 'indexoptions' is a new hashmap
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256 | }
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257 | if (defined $name and $name =~ /\w/ && defined $value and $value =~ /\w/) {
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258 | # we have a name and value to this option, add them as options associated with the current index
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259 |
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260 | if (!defined $data->{$key}->{$indexName}) {
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261 | $data->{$key}->{$indexName} = {}; # indexoptions -> allfields is a new hashmap
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262 | }
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263 |
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264 | $data->{$key}->{$indexName}->{$name} = $value;
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265 |
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266 | #print STDERR "@@@ Found: Value: data->{'indexfieldoptions'}->{$indexName}->{$name}: " . $data->{'indexfieldoptions'}->{$indexName}->{$name} . "\n";
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267 | }
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268 | }
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269 |
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270 | # importOption and buildOption, just stored at top level, name=value,
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271 | # as per gs2 version
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272 | elsif ($element =~ /$topleveloptionexp/) {
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273 | if (defined $name) {
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274 | $name =~ s/^-//; # remove initial - if there was one
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275 | if (!defined $value) {
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276 | # flag option, set to true
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277 | $value = "true";
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278 | }
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279 | $data->{$name} = $value;
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280 | }
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281 | }
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282 |
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283 | #@ plugout options
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284 | elsif ($element eq "plugout") {
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285 | $currentLevel = "plugout";
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286 | my $key = $nameMap->{$currentLevel};
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287 | if (!defined $data->{$key}) {
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288 | $data->{$key} = [];
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289 | }
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290 | if(defined $name and $name ne ""){
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291 | push (@{$data->{$key}},$name);
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292 | }
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293 | else{
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294 | push (@{$data->{$key}},"GreenstoneXMLPlugout");
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295 | }
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296 | }
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297 | if ($currentLevel eq "plugout" and $element eq "option") {
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298 | my $key = $nameMap->{$currentLevel};
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299 | if (defined $name and $name ne ""){
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300 | push (@{$data->{$key}},$name);
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301 | }
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302 | if (defined $value and $value ne ""){
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303 | push (@{$data->{$key}},$value);
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304 | }
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305 | }
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306 |
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307 | #@ use hash of hash of strings: hashexp
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308 | elsif ($element =~ /$hashexp/) {
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309 | if (!defined $data->{$element}) {
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310 | $data->{$element} = {};
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311 | }
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312 | if (defined $name and $name =~ /\w/) {
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313 | if (defined $filter and $filter =~ /\w/) {
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314 | $data->{$element}->{$name} = $filter;
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315 |
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316 | }
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317 | }
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318 | }
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319 |
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320 | #@ Handling each classifier/plugin element
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321 | elsif ($element =~ /$arrayarrayexp/) {
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322 | # find the gs2 mapping name
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323 | $currentLevel = $element;
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324 | my $key = $nameMap->{$element};
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325 |
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326 | # define an array of array of strings foreach $k (@{$data->{$key}}) {
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327 | if (!defined $data->{$key}) {
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328 | $data->{$key} = [];
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329 | }
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330 |
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331 | # Push classifier/plugin name (e.g. AZList) into $data as the first string
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332 | push (@{$data->{$key}->[$currentIndex]},$name);
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333 | if (defined $value and $value =~ /\w/) {
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334 | push (@{$data->{$key}->[$currentIndex]}, $value);
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335 | print "$value\n";
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336 | }
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337 | #print $currentIndex."indexup\n";
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338 | }
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339 |
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340 | #@ Handling the option elements in each classifier/plugin element (as the following strings)
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341 | elsif ($currentLevel =~ /$arrayarrayexp/ and $element eq "option") {
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342 | # find the gs2 mapping name for classifier and plugin
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343 | my $key = $nameMap->{$currentLevel};
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344 |
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345 | if (defined $name and $name =~ /\w/) {
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346 | push (@{$data->{$key}->[$currentIndex]}, $name);
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347 | }
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348 | if (defined $value and $value !~ /^\s*$/) {
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349 | push (@{$data->{$key}->[$currentIndex]}, $value);
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350 | }
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351 |
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352 | }
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353 |
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354 |
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355 | }
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356 |
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357 | sub EndTag {
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358 | my ($expat, $element) = @_;
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359 | my $endTags = q/^(browse|pluginList|displayItemList|indexOption)$/; #|buildOptionList)$/;
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360 | if ($element =~ /$endTags/) {
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361 | $currentIndex = 0;
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362 | $currentLevel = "";
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363 | }
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364 |
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365 | # $arrayarrayexp contains classifier|plugin
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366 | elsif($element =~ /$arrayarrayexp/ ){
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367 | $currentIndex = $currentIndex + 1;
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368 | }
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369 | }
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370 |
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371 | sub Text {
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372 | if (defined $currentLocation) {
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373 | #@ Handling block metadataList(creator, maintainer, public)
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374 | if($currentLocation =~ /$stringexp/){
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375 | #print $currentLocation;
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376 | my $key = $nameMap->{$currentLocation};
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377 | $data->{$key} = $_;
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378 | undef $currentLocation;
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379 | }
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380 |
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381 | #@ Handling displayItem metadata that are children of displayItemList
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382 | # that means we will be getting the collection's name and possibly description ('collectionextra' in GS2).
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383 | elsif($currentLevel eq "displayItemList" && $currentLocation =~ /$displayItemNames/) {
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384 | my $lang = $currentAttrRef->{'lang'};
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385 | my $name = $currentAttrRef->{'name'};
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386 |
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387 | # this is how data->collectionmeta's language is set in Greenstone 2.
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388 | # Need to be consistent, since export.pl accesses these values all in the same way
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389 | if(!defined $lang) {
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390 | $lang = 'default';
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391 | } else {
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392 | $lang = "[l=$lang]";
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393 | }
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394 |
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395 | if(defined $name and $name =~ /$displayItemNames/) { # attribute name = 'name' || 'description'
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396 | # using $nameMap->$name resolves to 'collectionname' if $name='name' and 'collectionextra' if $name='description'
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397 | $data->{'collectionmeta'}->{$nameMap->{$name}}->{$lang} = $_; # the value is the Text parsed
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398 | #print STDERR "***Found: $nameMap->{$name} collectionmeta, lang is $lang. Value: $data->{'collectionmeta'}->{$nameMap->{$name}}->{$lang}\n";
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399 | }
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400 | undef $currentLocation;
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401 | }
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402 |
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403 | #@ Handling searchtype: plain,form; arrayexp
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404 | elsif (defined $currentLocation and $currentLocation =~ /searchType/) {
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405 | # map 'searchType' into 'searchtype'
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406 | my $key = $nameMap->{$currentLocation};
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407 | # split it by ','
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408 | my ($plain, $form) = split (",", $_);
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409 |
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410 | if (!defined $data->{$key}) {
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411 | $data->{$key} = [];
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412 | }
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413 | if (defined $plain and $plain =~ /\w/) {
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414 | push @{ $data->{$key} }, $plain;
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415 | }
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416 | if (defined $form and $form =~ /\w/) {
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417 | push @{ $data->{$key} }, $form;
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418 | }
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419 | }
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420 | }
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421 | }
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422 |
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423 | # This sub is for debugging purposes
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424 | sub Display {
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425 | # metadataList
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426 | foreach my $k (keys %{$data}) {
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427 | print STDERR "*** metadatalist key $k\n";
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428 | }
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429 |
|
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430 | print STDERR "*** creator: ".$data->{'creator'}."\n" if (defined $data->{'creator'});
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431 | print STDERR "*** maintainer: ".$data->{"maintainer"}."\n" if (defined $data->{"maintainer"});
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432 | print STDERR "*** public: ".$data->{"public"}."\n" if (defined $data->{"public"});
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433 | print STDERR "*** default index: ".$data->{"defaultindex"}."\n" if (defined $data->{"defaultindex"});
|
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434 | print STDERR "*** default level: ".$data->{"defaultlevel"}."\n" if (defined $data->{"defaultlevel"});
|
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435 | print STDERR "*** build type: ".$data->{"buildtype"}."\n" if (defined $data->{"buildtype"});
|
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436 | print STDERR "*** orthogonal build types: ".join(",",@{$data->{"orthogonalbuildtypes"}})."\n" if (defined $data->{"orthogonalbuildtypes"});
|
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437 | if (defined $data->{"orthogonalcustomservicerack"}) {
|
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438 | print STDERR "*** orthogonal custom service racks: \n";
|
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439 | foreach my $s (keys %{$data->{"orthogonalcustomservicerack"}}) {
|
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440 | print STDERR "$s -> ". $data->{"orthogonalcustomservicerack"}->{$s}."\n";
|
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441 | }
|
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442 | }
|
---|
443 | print STDERR "*** search types: \n";
|
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444 | print STDERR join(",",@{$data->{"searchtype"}})."\n" if (defined $data->{"searchtype"});
|
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445 | print STDERR "*** levels: \n";
|
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446 | print STDERR join(",",@{$data->{'levels'}})."\n" if (defined $data->{'levels'});
|
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447 | print STDERR "*** index subcollections: \n";
|
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448 | print STDERR join(",",@{$data->{'indexsubcollections'}})."\n" if (defined $data->{'indexsubcollections'});
|
---|
449 | print STDERR "*** indexes: \n";
|
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450 | print STDERR join(",",@{$data->{'indexes'}})."\n" if (defined $data->{'indexes'});
|
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451 | print STDERR "*** index options: \n";
|
---|
452 | print STDERR join(",",@{$data->{'indexoptions'}})."\n" if (defined $data->{'indexoptions'});
|
---|
453 | print STDERR "*** languages: \n";
|
---|
454 | print STDERR join(",",@{$data->{'languages'}})."\n" if (defined $data->{'languages'});
|
---|
455 | print STDERR "*** language metadata: \n";
|
---|
456 | print STDERR join(",",@{$data->{'languagemetadata'}})."\n" if (defined $data->{'languagemetadata'});
|
---|
457 |
|
---|
458 | print STDERR "*** Plugins: \n";
|
---|
459 | if (defined $data->{'plugin'}) {
|
---|
460 | foreach $a (@{$data->{'plugin'}}) {
|
---|
461 | print join(",",@$a);
|
---|
462 | print "\n";
|
---|
463 | }
|
---|
464 | }
|
---|
465 |
|
---|
466 | #print STDERR "*** Build options: \n";
|
---|
467 | #if (defined $data->{'store_metadata_coverage'}) {
|
---|
468 | #foreach $a (@{$data->{'store_metadata_coverage'}}) {
|
---|
469 | # print join(",",@$a,@$_);
|
---|
470 | # print "\n";
|
---|
471 | #}
|
---|
472 | #}
|
---|
473 |
|
---|
474 | if (defined $data->{'classify'}) {
|
---|
475 | print STDERR "*** Classifiers: \n";
|
---|
476 | map { print join(",",@$_)."\n"; } @{$data->{'classify'}};
|
---|
477 | }
|
---|
478 |
|
---|
479 | if (defined $data->{'subcollection'}) {
|
---|
480 | foreach my $key (keys %{$data->{'subcollection'}}) {
|
---|
481 | print "subcollection ".$key." ".$data->{'subcollection'}->{$key}."\n";
|
---|
482 | }
|
---|
483 | }
|
---|
484 | }
|
---|
485 | # is this actually used??
|
---|
486 | sub Doctype {
|
---|
487 | my ($expat, $name, $sysid, $pubid, $internal) = @_;
|
---|
488 |
|
---|
489 | die if ($name !~ /^CollectionConfig$/);
|
---|
490 | }
|
---|
491 |
|
---|
492 | # This Char function overrides the one in XML::Parser::Stream to overcome a
|
---|
493 | # problem where $expat->{Text} is treated as the return value, slowing
|
---|
494 | # things down significantly in some cases.
|
---|
495 | sub Char {
|
---|
496 | if ($]<5.008) {
|
---|
497 | use bytes; # Necessary to prevent encoding issues with XML::Parser 2.31+ and Perl 5.6
|
---|
498 | }
|
---|
499 | $_[0]->{'Text'} .= $_[1];
|
---|
500 | return undef;
|
---|
501 | }
|
---|
502 |
|
---|
503 |
|
---|
504 |
|
---|
505 |
|
---|
506 | #########################################################
|
---|
507 |
|
---|
508 | 1;
|
---|