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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7 This file copyright 2008 QMUL.
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8
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9 This program is free software; you can redistribute it and/or
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10 modify it under the terms of the GNU General Public License as
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11 published by the Free Software Foundation; either version 2 of the
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12 License, or (at your option) any later version. See the file
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13 COPYING included with this distribution for more information.
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14 */
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15
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16 #include "PluginRDFDescription.h"
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17
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18 #include "PluginRDFIndexer.h"
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19 #include "SimpleSPARQLQuery.h"
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20
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21 #include "base/Profiler.h"
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22
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23 #include "plugin/PluginIdentifier.h"
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24
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25 #include <iostream>
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26 using std::cerr;
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27 using std::endl;
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28
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29 PluginRDFDescription::PluginRDFDescription(QString pluginId) :
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30 m_pluginId(pluginId),
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31 m_haveDescription(false)
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32 {
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33 PluginRDFIndexer *indexer = PluginRDFIndexer::getInstance();
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34 m_pluginUri = indexer->getURIForPluginId(pluginId);
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35 if (m_pluginUri == "") {
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36 cerr << "PluginRDFDescription: WARNING: No RDF description available for plugin ID \""
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37 << pluginId.toStdString() << "\"" << endl;
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38 } else {
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39 // All the data we need should be in our RDF model already:
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40 // if it's not there, we don't know where to find it anyway
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41 if (index()) {
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42 m_haveDescription = true;
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43 }
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44 }
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45 }
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46
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47 PluginRDFDescription::~PluginRDFDescription()
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48 {
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49 }
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50
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51 bool
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52 PluginRDFDescription::haveDescription() const
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53 {
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54 return m_haveDescription;
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55 }
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56
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57 QString
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58 PluginRDFDescription::getPluginName() const
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59 {
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60 return m_pluginName;
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61 }
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62
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63 QString
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64 PluginRDFDescription::getPluginDescription() const
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65 {
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66 return m_pluginDescription;
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67 }
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68
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69 QString
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70 PluginRDFDescription::getPluginMaker() const
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71 {
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72 return m_pluginMaker;
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73 }
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74
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75 QString
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76 PluginRDFDescription::getPluginInfoURL() const
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77 {
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78 return m_pluginInfoURL;
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79 }
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80
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81 QStringList
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82 PluginRDFDescription::getOutputIds() const
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83 {
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84 QStringList ids;
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85 for (OutputDispositionMap::const_iterator i = m_outputDispositions.begin();
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86 i != m_outputDispositions.end(); ++i) {
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87 ids.push_back(i->first);
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88 }
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89 return ids;
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90 }
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91
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92 QString
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93 PluginRDFDescription::getOutputName(QString outputId) const
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94 {
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95 if (m_outputNames.find(outputId) == m_outputNames.end()) {
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96 return "";
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97 }
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98 return m_outputNames.find(outputId)->second;
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99 }
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100
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101 PluginRDFDescription::OutputDisposition
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102 PluginRDFDescription::getOutputDisposition(QString outputId) const
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103 {
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104 if (m_outputDispositions.find(outputId) == m_outputDispositions.end()) {
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105 return OutputDispositionUnknown;
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106 }
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107 return m_outputDispositions.find(outputId)->second;
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108 }
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109
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110 QString
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111 PluginRDFDescription::getOutputEventTypeURI(QString outputId) const
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112 {
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113 if (m_outputEventTypeURIMap.find(outputId) ==
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114 m_outputEventTypeURIMap.end()) {
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115 return "";
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116 }
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117 return m_outputEventTypeURIMap.find(outputId)->second;
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118 }
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119
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120 QString
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121 PluginRDFDescription::getOutputFeatureAttributeURI(QString outputId) const
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122 {
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123 if (m_outputFeatureAttributeURIMap.find(outputId) ==
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124 m_outputFeatureAttributeURIMap.end()) {
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125 return "";
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126 }
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127 return m_outputFeatureAttributeURIMap.find(outputId)->second;
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128 }
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129
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130 QString
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131 PluginRDFDescription::getOutputSignalTypeURI(QString outputId) const
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132 {
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133 if (m_outputSignalTypeURIMap.find(outputId) ==
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134 m_outputSignalTypeURIMap.end()) {
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135 return "";
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136 }
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137 return m_outputSignalTypeURIMap.find(outputId)->second;
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138 }
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139
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140 QString
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141 PluginRDFDescription::getOutputUnit(QString outputId) const
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142 {
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143 if (m_outputUnitMap.find(outputId) == m_outputUnitMap.end()) {
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144 return "";
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145 }
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146 return m_outputUnitMap.find(outputId)->second;
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147 }
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148
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149 QString
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150 PluginRDFDescription::getOutputUri(QString outputId) const
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151 {
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152 if (m_outputUriMap.find(outputId) == m_outputUriMap.end()) {
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153 return "";
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154 }
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155 return m_outputUriMap.find(outputId)->second;
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156 }
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157
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158 bool
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159 PluginRDFDescription::index()
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160 {
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161 Profiler profiler("PluginRDFDescription::index");
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162
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163 bool success = true;
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164 if (!indexMetadata()) success = false;
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165 if (!indexOutputs()) success = false;
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166
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167 return success;
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168 }
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169
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170 bool
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171 PluginRDFDescription::indexMetadata()
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172 {
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173 Profiler profiler("PluginRDFDescription::index");
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174
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175 SimpleSPARQLQuery::QueryType m = SimpleSPARQLQuery::QueryFromModel;
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176
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177 QString queryTemplate =
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178 QString(
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179 " PREFIX vamp: <http://purl.org/ontology/vamp/> "
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180 " PREFIX foaf: <http://xmlns.com/foaf/0.1/> "
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181 " PREFIX dc: <http://purl.org/dc/elements/1.1/> "
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182 " SELECT ?%3 "
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183 " WHERE { "
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184 " <%1> %2 ?%3 . "
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185 " }")
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186 .arg(m_pluginUri);
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187
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188 SimpleSPARQLQuery::Value v;
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189
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190 v = SimpleSPARQLQuery::singleResultQuery
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191 (m, queryTemplate.arg("vamp:name").arg("name"), "name");
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192
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193 if (v.type == SimpleSPARQLQuery::LiteralValue && v.value != "") {
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194 m_pluginName = v.value;
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195 }
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196
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197 v = SimpleSPARQLQuery::singleResultQuery
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198 (m, queryTemplate.arg("dc:description").arg("description"), "description");
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199
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200 if (v.type == SimpleSPARQLQuery::LiteralValue && v.value != "") {
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201 m_pluginDescription = v.value;
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202 }
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203
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204 v = SimpleSPARQLQuery::singleResultQuery
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205 (m,
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206 QString(
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207 " PREFIX vamp: <http://purl.org/ontology/vamp/> "
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208 " PREFIX foaf: <http://xmlns.com/foaf/0.1/> "
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209 " SELECT ?name "
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210 " WHERE { "
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211 " <%1> foaf:maker ?maker . "
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212 " ?maker foaf:name ?name . "
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213 " }")
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214 .arg(m_pluginUri),
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215 "name");
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216
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217 if (v.type == SimpleSPARQLQuery::LiteralValue && v.value != "") {
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218 m_pluginMaker = v.value;
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219 }
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220
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221 // If we have a more-information URL for this plugin, then we take
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222 // that. Otherwise, a more-information URL for the plugin
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223 // library would do nicely. Failing that, we could perhaps use
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224 // any foaf:page URL at all that appears in the file -- but
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225 // perhaps that would be unwise
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226
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227 v = SimpleSPARQLQuery::singleResultQuery
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228 (m,
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229 QString(
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230 " PREFIX vamp: <http://purl.org/ontology/vamp/> "
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231 " PREFIX foaf: <http://xmlns.com/foaf/0.1/> "
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232 " SELECT ?page "
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233 " WHERE { "
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234 " <%1> foaf:page ?page . "
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235 " }")
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236 .arg(m_pluginUri),
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237 "page");
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238
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239 if (v.type == SimpleSPARQLQuery::URIValue && v.value != "") {
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240
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241 m_pluginInfoURL = v.value;
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242
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243 } else {
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244
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245 v = SimpleSPARQLQuery::singleResultQuery
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246 (m,
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247 QString(
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248 " PREFIX vamp: <http://purl.org/ontology/vamp/> "
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249 " PREFIX foaf: <http://xmlns.com/foaf/0.1/> "
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250 " SELECT ?page "
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251 " WHERE { "
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252 " ?library vamp:available_plugin <%1> ; "
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253 " a vamp:PluginLibrary ; "
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254 " foaf:page ?page . "
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255 " }")
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256 .arg(m_pluginUri),
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257 "page");
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258
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259 if (v.type == SimpleSPARQLQuery::URIValue && v.value != "") {
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260
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261 m_pluginInfoURL = v.value;
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262 }
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263 }
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264
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265 return true;
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266 }
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267
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268 bool
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269 PluginRDFDescription::indexOutputs()
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270 {
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271 Profiler profiler("PluginRDFDescription::indexOutputs");
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272
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273 SimpleSPARQLQuery::QueryType m = SimpleSPARQLQuery::QueryFromModel;
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274
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275 SimpleSPARQLQuery query
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276 (m,
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277 QString
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278 (
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279 " PREFIX vamp: <http://purl.org/ontology/vamp/> "
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280
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281 " SELECT ?output ?output_id ?output_type ?unit "
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282
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283 " WHERE { "
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284
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285 " <%1> vamp:output ?output . "
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286
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287 " ?output vamp:identifier ?output_id ; "
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288 " a ?output_type . "
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289
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290 " OPTIONAL { "
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291 " ?output vamp:unit ?unit "
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292 " } . "
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293
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294 " } "
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295 )
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296 .arg(m_pluginUri));
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297
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298 SimpleSPARQLQuery::ResultList results = query.execute();
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299
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300 if (!query.isOK()) {
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301 cerr << "ERROR: PluginRDFDescription::index: ERROR: Failed to query outputs for <"
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302 << m_pluginUri.toStdString() << ">: "
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303 << query.getErrorString().toStdString() << endl;
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304 return false;
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305 }
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306
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307 if (results.empty()) {
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308 cerr << "ERROR: PluginRDFDescription::indexURL: NOTE: No outputs defined for <"
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309 << m_pluginUri.toStdString() << ">" << endl;
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310 return false;
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311 }
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312
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313 // Note that an output may appear more than once, if it inherits
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314 // more than one type (e.g. DenseOutput and QuantizedOutput). So
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315 // these results must accumulate
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316
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317 for (int i = 0; i < results.size(); ++i) {
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318
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319 QString outputUri = results[i]["output"].value;
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320 QString outputId = results[i]["output_id"].value;
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321 QString outputType = results[i]["output_type"].value;
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322
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323 m_outputUriMap[outputId] = outputUri;
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324
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325 if (outputType.contains("DenseOutput")) {
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326 m_outputDispositions[outputId] = OutputDense;
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327 } else if (outputType.contains("SparseOutput")) {
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328 m_outputDispositions[outputId] = OutputSparse;
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329 } else if (outputType.contains("TrackLevelOutput")) {
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330 m_outputDispositions[outputId] = OutputTrackLevel;
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331 } else {
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332 m_outputDispositions[outputId] = OutputDispositionUnknown;
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333 }
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334
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335 if (results[i]["unit"].type == SimpleSPARQLQuery::LiteralValue) {
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336
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337 QString unit = results[i]["unit"].value;
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338
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339 if (unit != "") {
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340 m_outputUnitMap[outputId] = unit;
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341 }
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342 }
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343
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344 SimpleSPARQLQuery::Value v;
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345
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346 v = SimpleSPARQLQuery::singleResultQuery
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347 (m,
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348 QString(" PREFIX vamp: <http://purl.org/ontology/vamp/> "
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349 " PREFIX dc: <http://purl.org/dc/elements/1.1/> "
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350 " SELECT ?title "
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351 " WHERE { <%2> dc:title ?title } ")
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352 .arg(outputUri), "title");
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353
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354 if (v.type == SimpleSPARQLQuery::LiteralValue && v.value != "") {
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355 m_outputNames[outputId] = v.value;
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356 }
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357
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358 QString queryTemplate =
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359 QString(" PREFIX vamp: <http://purl.org/ontology/vamp/> "
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Chris@489
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360 " SELECT ?%3 "
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361 " WHERE { <%2> vamp:computes_%3 ?%3 } ")
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362 .arg(outputUri);
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363
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364 v = SimpleSPARQLQuery::singleResultQuery
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365 (m, queryTemplate.arg("event_type"), "event_type");
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366
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367 if (v.type == SimpleSPARQLQuery::URIValue && v.value != "") {
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368 m_outputEventTypeURIMap[outputId] = v.value;
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369 }
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370
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371 v = SimpleSPARQLQuery::singleResultQuery
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372 (m, queryTemplate.arg("feature"), "feature");
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373
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374 if (v.type == SimpleSPARQLQuery::URIValue && v.value != "") {
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375 m_outputFeatureAttributeURIMap[outputId] = v.value;
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376 }
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377
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378 v = SimpleSPARQLQuery::singleResultQuery
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379 (m, queryTemplate.arg("signal_type"), "signal_type");
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380
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381 if (v.type == SimpleSPARQLQuery::URIValue && v.value != "") {
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382 m_outputSignalTypeURIMap[outputId] = v.value;
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383 }
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384 }
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385
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386 return true;
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387 }
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388
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