public string Execute(string query)
{
var stringResults = new List <string>();
var ds = new InMemoryDataset(DatabaseInitializer.Initialize());
var sparqlparser = new SparqlQueryParser();
ISparqlQueryProcessor processor = new LeviathanQueryProcessor(ds);
var sparqlQuery = sparqlparser.ParseFromString(query);
var results = processor.ProcessQuery(sparqlQuery);
if (results is SparqlResultSet)
{
var sparqlResultSet = (SparqlResultSet)results;
foreach (var entry in sparqlResultSet)
{
stringResults.Add(entry.ToString());
}
}
return(string.Join(",", stringResults));
}
public void InsertImage(ImorImage image)
{
graph = DatabaseInitializer.Initialize();
var node = graph.CreateUriNode(new Uri(image.Uri));
var typeNode = graph.GetUriNode(new Uri(ImorEnum.RdfType));
var imageNode = graph.GetUriNode(new Uri(ImorEnum.Image));
var t = new Triple(node, typeNode, imageNode);
if (!string.IsNullOrEmpty(image.Description))
{
var descriptionNode = graph.GetUriNode(new Uri(ImorEnum.Description));
var descriptionTriple = new Triple(node, descriptionNode, graph.CreateLiteralNode(image.Description));
graph.Assert(descriptionTriple);
}
if (!string.IsNullOrEmpty(image.Content))
{
var contentNode = graph.GetUriNode(new Uri(ImorEnum.Content));
var contenTriple = new Triple(node, contentNode, graph.CreateLiteralNode(image.Content));
graph.Assert(contenTriple);
}
if (image.Tags.Any())
{
foreach (var tag in image.Tags)
{
var tagNode = graph.GetUriNode(new Uri(tag.Uri));
if (tagNode != null)
{
var hasNode = graph.GetUriNode(new Uri(ImorEnum.HasA));
var tagTriple = new Triple(node, hasNode, tagNode);
graph.Assert(tagTriple);
}
}
}
graph.Assert(t);
graph.SaveToFile(DatabaseInitializer.ontology);
}
public ImagesRepository()
{
graph = DatabaseInitializer.Initialize();
tagsRepository = new TagsRepository();
}
public TagsRepository()
{
this.graph = DatabaseInitializer.Initialize();
}
