Mercurial > hg > svcore
view rdf/PluginRDFDescription.cpp @ 444:14521503f196
* Start work on TransformFinder dialog
author | Chris Cannam |
---|---|
date | Tue, 23 Sep 2008 13:39:25 +0000 |
parents | 5746c559af15 |
children | ef14acd6d102 |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This file copyright 2008 QMUL. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #include "PluginRDFDescription.h" #include "PluginRDFIndexer.h" #include "SimpleSPARQLQuery.h" #include "plugin/PluginIdentifier.h" #include <iostream> using std::cerr; using std::endl; PluginRDFDescription::PluginRDFDescription(QString pluginId) : m_pluginId(pluginId), m_haveDescription(false) { PluginRDFIndexer *indexer = PluginRDFIndexer::getInstance(); QString url = indexer->getDescriptionURLForPluginId(pluginId); if (url == "") { cerr << "PluginRDFDescription: WARNING: No RDF description available for plugin ID \"" << pluginId.toStdString() << "\"" << endl; } else { if (!indexURL(url)) { cerr << "PluginRDFDescription: ERROR: Failed to query RDF description for plugin ID \"" << pluginId.toStdString() << "\"" << endl; } else { m_haveDescription = true; } } } PluginRDFDescription::~PluginRDFDescription() { } bool PluginRDFDescription::haveDescription() const { return m_haveDescription; } PluginRDFDescription::OutputDisposition PluginRDFDescription::getOutputDisposition(QString outputId) const { if (m_outputDispositions.find(outputId) == m_outputDispositions.end()) { return OutputDispositionUnknown; } return m_outputDispositions.find(outputId)->second; } QString PluginRDFDescription::getOutputEventTypeURI(QString outputId) const { if (m_outputEventTypeURIMap.find(outputId) == m_outputEventTypeURIMap.end()) { return ""; } return m_outputEventTypeURIMap.find(outputId)->second; } QString PluginRDFDescription::getOutputFeatureAttributeURI(QString outputId) const { if (m_outputFeatureAttributeURIMap.find(outputId) == m_outputFeatureAttributeURIMap.end()) { return ""; } return m_outputFeatureAttributeURIMap.find(outputId)->second; } QString PluginRDFDescription::getOutputSignalTypeURI(QString outputId) const { if (m_outputSignalTypeURIMap.find(outputId) == m_outputSignalTypeURIMap.end()) { return ""; } return m_outputSignalTypeURIMap.find(outputId)->second; } QString PluginRDFDescription::getOutputUnit(QString outputId) const { if (m_outputUnitMap.find(outputId) == m_outputUnitMap.end()) { return ""; } return m_outputUnitMap.find(outputId)->second; } bool PluginRDFDescription::indexURL(QString url) { QString type, soname, label; PluginIdentifier::parseIdentifier(m_pluginId, type, soname, label); SimpleSPARQLQuery query (QString ( " PREFIX vamp: <http://purl.org/ontology/vamp/> " " SELECT ?output ?output_id ?output_type ?unit " " FROM <%1> " " WHERE { " " ?plugin a vamp:Plugin ; " " vamp:identifier \"%2\" ; " " vamp:output ?output . " " ?output vamp:identifier ?output_id ; " " a ?output_type . " " OPTIONAL { " " ?output vamp:unit ?unit " " } . " " } " ) .arg(url) .arg(label)); SimpleSPARQLQuery::ResultList results = query.execute(); if (!query.isOK()) { cerr << "ERROR: PluginRDFDescription::indexURL: ERROR: Failed to query document at <" << url.toStdString() << ">: " << query.getErrorString().toStdString() << endl; return false; } if (results.empty()) { cerr << "ERROR: PluginRDFDescription::indexURL: NOTE: Document at <" << url.toStdString() << "> does not appear to describe any outputs for plugin with id \"" << label.toStdString() << "\"" << endl; return false; } // Note that an output may appear more than once, if it inherits // more than one type (e.g. DenseOutput and QuantizedOutput). So // these results must accumulate for (int i = 0; i < results.size(); ++i) { QString outputUri = results[i]["output"].value; QString outputId = results[i]["output_id"].value; QString outputType = results[i]["output_type"].value; if (outputType.contains("DenseOutput")) { m_outputDispositions[outputId] = OutputDense; } else if (outputType.contains("SparseOutput")) { m_outputDispositions[outputId] = OutputSparse; } else if (outputType.contains("TrackLevelOutput")) { m_outputDispositions[outputId] = OutputTrackLevel; } if (results[i]["unit"].type == SimpleSPARQLQuery::LiteralValue) { QString unit = results[i]["unit"].value; if (unit != "") { m_outputUnitMap[outputId] = unit; } } QString queryTemplate = QString(" PREFIX vamp: <http://purl.org/ontology/vamp/> " " SELECT ?%3 FROM <%1> " " WHERE { <%2> vamp:computes_%3 ?%3 } ") .arg(url).arg(outputUri); SimpleSPARQLQuery::Value v; v = SimpleSPARQLQuery::singleResultQuery (queryTemplate.arg("event_type"), "event_type"); if (v.type == SimpleSPARQLQuery::URIValue && v.value != "") { m_outputEventTypeURIMap[outputId] = v.value; } v = SimpleSPARQLQuery::singleResultQuery (queryTemplate.arg("feature_attribute"), "feature_attribute"); if (v.type == SimpleSPARQLQuery::URIValue && v.value != "") { m_outputFeatureAttributeURIMap[outputId] = v.value; } v = SimpleSPARQLQuery::singleResultQuery (queryTemplate.arg("signal_type"), "signal_type"); if (v.type == SimpleSPARQLQuery::URIValue && v.value != "") { m_outputSignalTypeURIMap[outputId] = v.value; } } return true; }