public IEnumerable <Triple> GetItemTriplesBySubjectPredicate(Item item, string predicate)
{
var itemUri = SitecoreTripleHelper.ItemToUri(item);
var query = SitecoreTripleHelper.StringToSparqlQuery(String.Format(TriplesBySubjectPredicateFormat, itemUri, predicate));
return(TripleQuery(query));
}
public IEnumerable <Triple> GetItemTriplesByObject(Item item)
{
var itemUri = SitecoreTripleHelper.ItemToUri(item);
var query = SitecoreTripleHelper.StringToSparqlQuery(String.Format(TriplesByObjectFormat, itemUri));
return(TripleQuery(query));
}
protected void Page_Load(object sender, EventArgs e)
{
var sublayout = Parent as Sitecore.Web.UI.WebControls.Sublayout;
var dataSourceItem = Sitecore.Context.Database.GetItem(sublayout.DataSource);
var factory = DependencyResolver.Instance.Resolve <SitecoreManagerFactory>();
var manager = factory.GetContextWebDatabaseDataManager();
//string rawParameters = Attributes["sc_parameters"];
//var parameters = Sitecore.Web.WebUtil.ParseUrlParameters(rawParameters);
var title = dataSourceItem.Fields["Title"].Value;
var sparqlQuery = dataSourceItem.Fields["SparqlQuery"].Value;
litTitle.Text = title;
SitecoreTriples = new List <SitecoreTriple>();
if (!string.IsNullOrEmpty(sparqlQuery))
{
//Format the query
var formattedQuery = String.Format(sparqlQuery,
SitecoreTripleHelper.ItemToUri(Sitecore.Context.Item));
var sqp = new SparqlQueryParser();
var query = sqp.ParseFromString(formattedQuery);
if (query.QueryType == SparqlQueryType.Construct)
{
var triples = manager.TripleQuery(query);
SitecoreTriples = triples.ToSitecoreTriples();
}
else if (query.QueryType == SparqlQueryType.Select || query.QueryType == SparqlQueryType.SelectAll)
{
var resultSet = manager.ResultSetQuery(query);
foreach (SparqlResult result in resultSet)
{
foreach (var variable in result.ToList())
{
var sitecoreNode = variable.Value.ToSitecoreNode();
if (sitecoreNode != null)
{
litSparqlQueryResult.Text += string.Format("Key: {0} Value: <a href=\"{1}\">{2}</a><br/>",
variable.Key, LinkManager.GetItemUrl(sitecoreNode.Item), sitecoreNode.Item.Name);
}
else
{
litSparqlQueryResult.Text += string.Format("Key: {0} Value: {1}<br/>",
variable.Key, variable.Value.ToString());
}
}
}
}
}
}
public void RemoveLinksForItem(Item item, ItemLink link)
{
var parser = new SparqlQueryParser();
var subjectUri = SitecoreTripleHelper.ItemToUri(item);
var objectUri = SitecoreTripleHelper.ItemToUri(link.GetTargetItem());
var query = SitecoreTripleHelper.StringToSparqlQuery(String.Format(TriplesBySubjectObjectFormat, subjectUri, objectUri));
var triplesToDelete = TripleQuery(query);
DeleteTriples(triplesToDelete);
}
