/// <summary>
/// takes the list of Predicates and add tothem the domain and Range data needed in two steps
/// 1st : searching for direct Domain and ranges
/// 2nd : searching for predicates who don't have domain and ranges and select the all predicates and objects
/// get their types and add them to the domain and range field
/// </summary>
/// <param name="predicateList">the predicate list without the domain and range data</param>
/// <returns>the predicate list with the predicates have domain and ranges</returns>
private List <LexiconPredicate> addDomainAndRange(List <LexiconPredicate> predicateList)
{
//now interating over the final predicate list and fill the rest of it's details <Domain , Range>
// step 1 : the Direct Way
foreach (LexiconPredicate x in predicateList)
{
string Query = "Select distinct ?domain ?range where { {" +
"<" + x.URI + ">" + "<http://www.w3.org/2000/01/rdf-schema#domain> ?domain.}" +
"union { <" + x.URI + ">" + " <http://www.w3.org/2000/01/rdf-schema#range> ?range ." +
"}}";
//QueryHandler.startConnection();
//SparqlResultSet resulSet = QueryHandler.ExecuteQueryWithString(Query);
//QueryHandler.closeConnection();
SparqlResultSet resulSet = Request.RequestWithHTTP(Query);
if (resulSet.Count() != 0)
{
foreach (SparqlResult result in resulSet)
{
// check that the domain field is not empty // and check that this domain wasn't added before
if (result.Value("domain") != null)
{
if (!x.domains.Contains(result.Value("domain").ToString()))
{
x.domains.Add(result.Value("domain").ToString());
}
}
// check that the range field is not empty // and check that this range wasn't added before
if (result.Value("range") != null)
{
if (!x.ranges.Contains(result.Value("range").ToString()) && result.Value("range") != null)
{
x.ranges.Add(result.Value("range").ToString());
}
}
}
}
}
List <LexiconPredicate> toRemove = new List <LexiconPredicate>();
//step2 : the inDirect Way -- for predicates that didn't have a Domain or range selected before
foreach (LexiconPredicate x in predicateList)
{
bool hasDomain = (x.domains.Count == 0) ? false : true;
bool hasRange = (x.ranges.Count == 0) ? false : true;
if (!hasDomain && !hasRange)
{
toRemove.Add(x);
continue;
}
string Query = "Select distinct ";
Query += (hasDomain) ? "" : "?domain";
Query += (hasRange) ? "" : "?range";
Query += " where {{";
if (!hasDomain)
{
Query += "{ ?X <" + x.URI + "> ?Y ." +
"?X a ?domain . " +
"filter(!REGEX(STR(?domain) ,'http://www.w3.org/2002/07/owl#Thing','i'))" +
"}";
}
Query += "}";
if (!hasRange)
{
Query += "union { ?X <" + x.URI + "> ?Y ." +
"?Y a ?range . " +
"filter(!REGEX(STR(?range) ,'http://www.w3.org/2002/07/owl#Thing','i'))" +
"}";
}
Query += "}";
Query += "limit 20 ";
//QueryHandler.startConnection();
//SparqlResultSet resulSet = QueryHandler.ExecuteQueryWithString(Query);
//QueryHandler.closeConnection();
SparqlResultSet resulSet = Request.RequestWithHTTP(Query);
if (resulSet.Count() != 0)
{
foreach (SparqlResult result in resulSet)
{
// check that the domain field is not empty // and check that this domain wasn't added before
if (!hasDomain)
{
if (result.Value("domain") != null)
{
if (!x.domains.Contains(result.Value("domain").ToString()))
{
x.domains.Add(result.Value("domain").ToString());
}
}
}
// check that the range field is not empty // and check that this range wasn't added before
if (!hasRange)
{
if (result.Value("range") != null)
{
if (!x.ranges.Contains(result.Value("range").ToString()) && result.Value("range") != null)
{
x.ranges.Add(result.Value("range").ToString());
}
}
}
}
}
}
foreach (LexiconPredicate x in toRemove)
{
predicateList.Remove(x);
}
return(predicateList);
}
