//
// We don't really care if the indexing level is in the incorrect graph
//
void Nepomuk2::updateIndexingLevel(const QUrl& uri, int level)
{
QString uriN3 = Soprano::Node::resourceToN3( uri );
QString query = QString::fromLatin1("select ?g ?l where { graph ?g { %1 kext:indexingLevel ?l . } }")
.arg ( uriN3 );
Soprano::Model* model = ResourceManager::instance()->mainModel();
Soprano::QueryResultIterator it = model->executeQuery( query, Soprano::Query::QueryLanguageSparqlNoInference );
QUrl graph;
Soprano::Node prevLevel;
if( it.next() ) {
graph = it[0].uri();
prevLevel = it[1];
it.close();
}
if( !graph.isEmpty() ) {
QString graphN3 = Soprano::Node::resourceToN3( graph );
QString removeCommand = QString::fromLatin1("sparql delete { graph %1 { %2 kext:indexingLevel %3 . } }")
.arg( graphN3, uriN3, prevLevel.toN3() );
model->executeQuery( removeCommand, Soprano::Query::QueryLanguageUser, QLatin1String("sql") );
QString insertCommand = QString::fromLatin1("sparql insert { graph %1 { %2 kext:indexingLevel %3 . } }")
.arg( graphN3, uriN3, Soprano::Node::literalToN3(level) );
model->executeQuery( insertCommand, Soprano::Query::QueryLanguageUser, QLatin1String("sql") );
}
// Practically, this should never happen, but still
else {
QScopedPointer<KJob> job( Nepomuk2::setProperty( QList<QUrl>() << uri, KExt::indexingLevel(),
QVariantList() << QVariant(level) ) );
job->setAutoDelete(false);
job->exec();
}
}
void Worker::run()
{
m_canceled = false;
m_errorText.truncate( 0 );
Soprano::Model* model = Soprano::createModel( Soprano::BackendSettings() << Soprano::BackendSetting( Soprano::BackendOptionStorageMemory ) );
if ( !model ) {
m_errorText = i18n( "Failed to create Soprano memory model. Most likely the installation misses Soprano backend plugins" );
return;
}
model->addStatements( m_data.toList() );
// select all instances that do not have a subject -> these should be the extracted entities
Soprano::QueryResultIterator it = model->executeQuery( QString::fromLatin1( "select * where { "
"?r a ?type . "
"OPTIONAL { ?r <http://s.opencalais.com/1/pred/subject> ?sub . } . "
"FILTER(!bound(?sub)) . "
"}" ),
Soprano::Query::QueryLanguageSparql );
while ( !m_canceled && it.next() ) {
Soprano::Node r = it["r"];
Soprano::Graph graph;
Soprano::QueryResultIterator it2 = model->executeQuery( QString::fromLatin1( "construct { ?entity ?ep ?eo . ?rel ?relp ?relo . } "
"where { "
"?entity <http://s.opencalais.com/1/pred/subject> %1 . "
"?entity ?ep ?eo . "
"?rel a <http://s.opencalais.com/1/type/sys/RelevanceInfo> . "
"?rel <http://s.opencalais.com/1/pred/subject> %1 . "
"?rel ?relp ?relo . "
"}" )
.arg( r.toN3() ),
Soprano::Query::QueryLanguageSparql );
while ( !m_canceled && it2.next() ) {
graph << it2.currentStatement();
}
if ( m_canceled )
break;
it2 = model->executeQuery( QString::fromLatin1( "select ?name ?rel ?type ?offset ?length where { "
"%1 <http://s.opencalais.com/1/pred/name> ?name . "
"%1 a ?type . "
"?relInfo a <http://s.opencalais.com/1/type/sys/RelevanceInfo> . "
"?relInfo <http://s.opencalais.com/1/pred/subject> %1 . "
"?relInfo <http://s.opencalais.com/1/pred/relevance> ?rel . "
"?info a <http://s.opencalais.com/1/type/sys/InstanceInfo> . "
"?info <http://s.opencalais.com/1/pred/subject> %1 . "
"?info <http://s.opencalais.com/1/pred/offset> ?offset . "
"?info <http://s.opencalais.com/1/pred/length> ?length . "
"}" )
.arg( r.toN3() ),
Soprano::Query::QueryLanguageSparql );
if ( !m_canceled && it2.next() ) {
Nepomuk::Types::Class type( m_plugin->matchPimoType( it2["type"].uri() ) );
QString name = it2["name"].toString();
// FIXME: actually the opencalais resource should be used as the pimo:hasOtherRepresentation of the pimo thing
// but that would mean that Entity needs more information or the graph needs to be really used
Scribo::Entity entity( name, type, graph );
do {
double rel = it2["rel"].literal().toDouble();
int offset = it2["offset"].literal().toInt();
int length = it2["length"].literal().toInt();
Scribo::TextOccurrence oc;
oc.setStartPos( offset );
oc.setLength( length );
oc.setRelevance( rel );
entity.addOccurrence( oc );
kDebug() << type << type.label() << name << rel << offset << length;
} while ( !m_canceled && it2.next() );
if ( m_canceled )
break;
addNewMatch( entity );
// find relations for the entity
Soprano::QueryResultIterator it3 = model->executeQuery( QString::fromLatin1( "select ?verb ?offset ?length ?exact where { "
"?s a <http://s.opencalais.com/1/type/em/r/GenericRelations> . "
"?s <http://s.opencalais.com/1/pred/relationsubject> %1 . "
"?s <http://s.opencalais.com/1/pred/verb> ?verb . "
"?info a <http://s.opencalais.com/1/type/sys/InstanceInfo> . "
"?info <http://s.opencalais.com/1/pred/subject> ?s . "
"?info <http://s.opencalais.com/1/pred/offset> ?offset . "
"?info <http://s.opencalais.com/1/pred/length> ?length . "
"?info <http://s.opencalais.com/1/pred/exact> ?exact . "
"}" )
.arg( r.toN3() ),
Soprano::Query::QueryLanguageSparql );
if ( !m_canceled && it3.next() ) {
QString verb = it3["verb"].toString();
QString exact = it3["exact"].toString();
int offset = it3["offset"].literal().toInt();
int length = it3["length"].literal().toInt();
// FIXME: get the graph
Scribo::Statement s( verb, entity, exact, Soprano::Graph() );
Scribo::TextOccurrence oc;
oc.setStartPos( offset );
oc.setLength( length );
s.addOccurrence( oc );
addNewMatch( s );
}
}
}
delete model;
}