1 | /**********************************************************************
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2 | *
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3 | * dublincore.cpp --
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4 | *
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5 | * Copyright (C) 2004-2010 The New Zealand Digital Library Project
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6 | *
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7 | * A component of the Greenstone digital library software
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8 | * from the New Zealand Digital Library Project at the
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9 | * University of Waikato, New Zealand.
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10 | *
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11 | * This program is free software; you can redistribute it and/or modify
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12 | * it under the terms of the GNU General Public License as published by
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13 | * the Free Software Foundation; either version 2 of the License, or
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14 | * (at your option) any later version.
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15 | *
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16 | * This program is distributed in the hope that it will be useful,
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17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 | * GNU General Public License for more details.
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20 | *
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21 | * You should have received a copy of the GNU General Public License
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22 | * along with this program; if not, write to the Free Software
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23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 | *
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25 | *********************************************************************/
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26 |
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27 |
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28 | #include "dublincore.h"
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29 | #include "gsdltools.h"
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30 |
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31 | dublin_core::dublin_core() : metaformat() {
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32 | // These element names taken from the schema
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33 | // http://www.openarchives.org/OAI/2.0/oai_dc.xsd
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34 | elementSet.insert("contributor");
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35 | elementSet.insert("coverage");
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36 | elementSet.insert("creator");
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37 | elementSet.insert("date");
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38 | elementSet.insert("description");
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39 | elementSet.insert("format");
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40 | elementSet.insert("identifier");
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41 | elementSet.insert("language");
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42 | elementSet.insert("publisher");
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43 | elementSet.insert("relation");
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44 | elementSet.insert("rights");
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45 | elementSet.insert("source");
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46 | elementSet.insert("subject");
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47 | elementSet.insert("title");
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48 | elementSet.insert("type");
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49 |
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50 |
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51 | }
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52 |
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53 | const text_t dublin_core::formatName() {
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54 | return "oai_dc";
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55 | }
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56 |
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57 | const text_t dublin_core::formatPrefix() {
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58 | return "dc";
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59 | }
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60 |
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61 | bool dublin_core::output_record(ostream &output, recptproto *protocol, const text_t &collection,
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62 | const text_t &record_OID)
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63 | {
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64 | return metaformat::output_record(output, protocol, collection, record_OID);
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65 | }
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66 |
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67 | void dublin_core::output_metadata_header(ostream &output)
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68 | {
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69 | output << " <metadata>\n";
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70 |
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71 | if (this->oaiConfigure->getOAIVersion() <= 110){
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72 | // output dublin core wrapper for OAI v1.1
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73 | output << " <dc xmlns=\"http://purl.org/dc/elements/1.1/\"\n"
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74 | << " xmlns:xsi=\"http://www.w3c.org/2001/XMLSchema-instance\"\n"
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75 | << " xsi:schemaLocation=\"http://purl.org/dc/elements/1.1/\n"
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76 | << " http://www.openarchives.org/OAI/1.1/dc.xsd\">\n";
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77 | }
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78 | else {
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79 | output << " <oai_dc:dc\n"
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80 | << " xmlns:oai_dc=\"http://www.openarchives.org/OAI/2.0/oai_dc/\"\n"
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81 | << " xmlns:dc=\"http://purl.org/dc/elements/1.1/\"\n"
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82 | << " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
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83 | << " xsi:schemaLocation=\"http://www.openarchives.org/OAI/2.0/oai_dc/\n"
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84 | << " http://www.openarchives.org/OAI/2.0/oai_dc.xsd\">\n";
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85 | }
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86 | }
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87 |
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88 | void dublin_core::output_metadata_footer(ostream &output)
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89 | {
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90 | if (this->oaiConfigure->getOAIVersion() <= 110) {
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91 | output << " </dc>" << endl;
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92 | }
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93 | else {
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94 | output << " </oai_dc:dc>" << endl;
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95 | }
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96 |
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97 | output << " </metadata>" << endl;
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98 | output.flush();
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99 | }
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100 |
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101 | bool dublin_core::output_custom_metadata(ostream &output, outconvertclass &outconvert, bool &headerDone, const text_t &collection, ResultDocInfo_t &docInfo) {
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102 | text_t value = get_metadata_value(docInfo, "gs.OAIResourceURL");
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103 | if (value.empty()) {
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104 | // try srclinkFile (the metaname "srclink_file" is deprecated, use "srclinkFile")
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105 | value = get_metadata_value(docInfo, "srclinkFile");
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106 | if (value.empty()) {
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107 | // we have no file to link to, so link to the Greenstone version of the
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108 | // document
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109 | value = this->oaiConfigure->getBaseLibraryURL()+"?a=d&c="+collection+"&d="+docInfo.OID;
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110 | } else {
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111 | if (starts_with(value, "[")) {
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112 | // its a format statement type value eg [SourceFile], need to get the appropriate metadata
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113 | value = substr(findchar(value.begin(), value.end(), '[')+1,findchar(value.begin(), value.end(), ']') );
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114 | value = get_metadata_value(docInfo, value);
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115 | }
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116 |
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117 | if (!value.empty()) {
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118 | text_t assocfilepath = get_metadata_value(docInfo, "assocfilepath");
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119 | if (!assocfilepath.empty()) {
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120 | value = this->oaiConfigure->getBaseDocRoot()+"/collect/"+collection+"/index/assoc/"+assocfilepath+"/"+value;
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121 | } else {
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122 | value = "";
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123 | }
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124 | }
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125 | }
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126 | }
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127 | if (!value.empty()) {
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128 | if (!headerDone) {
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129 | this->output_metadata_header(output);
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130 | headerDone = true;
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131 | }
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132 | if (this->oaiConfigure->getOAIVersion() >= 200) {
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133 | output << outconvert << " <dc:identifier>" << xml_safe(value) << "</dc:identifier>\n";
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134 | }
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135 | else {
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136 | output << outconvert << " <identifier>" << xml_safe(value) << "</identifier>\n";
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137 | }
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138 | }
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139 | return true;
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140 | }
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141 |
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142 | bool dublin_core::output_formatdata(ostream &output)
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143 | {
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144 | output << " <metadataPrefix>oai_dc</metadataPrefix>" << endl;
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145 |
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146 | if (this->oaiConfigure->getOAIVersion() <= 110) {
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147 | output << " <schema>http://www.openarchives.org/OAI/1.1/dc.xsd</schema>" << endl
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148 | << " <metadataNamespace>http://purl.org/dc/elements/1.1/</metadataNamespace>" << endl;
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149 | }
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150 | else {
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151 | output << " <schema>http://www.openarchives.org/OAI/2.0/oai_dc.xsd</schema>" << endl
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152 | << " <metadataNamespace>http://www.openarchives.org/OAI/2.0/oai_dc/</metadataNamespace>"
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153 | << endl;
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154 | }
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155 | return true;
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156 | }
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157 |
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