protected override UserProfileDataObject DoGet(UserProfileDataObject entity, LambdaExpression securityFilterExpression, List <string> includes, IObjectsDataSet context, Dictionary <string, object> parameters)
{
var userProfileUri = entity.Uri;
var result = new UserProfileDataObject();
result.Uri = entity.Uri;
var dataset = ApplicationSettings.Container.Resolve <IObjectsDataSet>();
dataset.AddObject(result);
string tempfile = null;
try
{
tempfile = DataProviderHelper.DownloadFile(userProfileUri, ".ttl");
var g = new Graph();
g.LoadFromFile(tempfile);
//UriLoader.Load(g, new Uri(userProfileUri)); // NOT WORKING ... ??? SOMEHOW SHOULD WORK
var query = @"SELECT * WHERE
{ ?me a <http://xmlns.com/foaf/0.1/Person> .
OPTIONAL
{
?me <http://www.w3.org/2006/vcard/ns#fn> ?Name .
}
OPTIONAL
{
?me <http://www.w3.org/2006/vcard/ns#organization-name> ?OrganizationName .
}
OPTIONAL
{
?me <http://www.w3.org/2006/vcard/ns#role> ?Role .
}
}";
var returned = ((SparqlResultSet)g.ExecuteQuery(query)).SingleOrDefault();
if (returned == null)
{
return(null);
}
result.Role = returned.HasValue("Role") ? returned["Role"].ToString() : null;
result.OrganizationName = returned.HasValue("OrganizationName") ? returned["OrganizationName"].ToString() : null;
result.Name = returned.HasValue("Name") ? returned["Name"].ToString() : null;
result.IsNew = false;
result.IsDirty = false;
return(result);
}
finally
{
if (File.Exists(tempfile))
{
File.Delete(tempfile);
}
}
}
protected override DataObjectCollection <VisitedPlaceDataObject> DoGetCollection(LambdaExpression securityFilterExpression, string filterPredicate, object[] filterArguments, string orderByPredicate, int pageNumber, int pageSize, List <string> includes, IObjectsDataSet context, Dictionary <string, object> parameters)
{
var userUri = GetUserBaseUriFromFilter(filterPredicate);
if (userUri == null)
{
// search all the users registered in application
var userNames = DataFacade.GOUserDataProvider.GetCollection(null).Select(u => u.UserName);
var toReturn = new DataObjectCollection <VisitedPlaceDataObject>();
toReturn.ObjectsDataSet = ApplicationSettings.Container.Resolve <IObjectsDataSet>();
foreach (var userName in userNames)
{
try
{
var userfilter = $"UserProfileUri == \"{userName}\" && {filterPredicate}";
var subvisitedplaces = DoGetCollection(securityFilterExpression, userfilter, filterArguments, orderByPredicate, 0, 0, includes, context, parameters);
foreach (var subvisitedplace in subvisitedplaces)
{
toReturn.Add(subvisitedplace);
}
}
catch (Exception e)
{ }
}
return(toReturn);
}
string visitedPlaceDocumentName = "myvisitedplaces.ttl";
string visitedPlaceDocumentUri = $"{userUri}/public/{visitedPlaceDocumentName}";
string tempfile = null;
var placeUriFilter = GetPropertyFromFilter(filterPredicate, "PlaceURI");
var countryUriFilter = GetPropertyFromFilter(filterPredicate, "CountryURI");
try
{
tempfile = DataProviderHelper.DownloadFile(visitedPlaceDocumentUri, ".ttl");
var g = new Graph();
g.LoadFromFile(tempfile);
//UriLoader.Load(g, new Uri(visitedPlaceDocumentUri)); // NOT WORKING ... ??? SOMEHOW SHOULD WORK
var query = new SparqlParameterizedString();
if (placeUriFilter == null && countryUriFilter == null)
{
query.CommandText = @"SELECT *
WHERE
{
?VisitedPlace a <http://generativeobjects.com/apps#VisitedPlace> ;
<http://schema.org/startDate> ?Date;
<http://schema.org/description> ?Description .
OPTIONAL {
?VisitedPlace <http://generativeobjects.com/apps#VisitedPlaceType> ?PlaceOrCountry .
}
OPTIONAL {
?VisitedPlace <http://dbpedia.org/ontology/Place> ?PlaceURI .
}
OPTIONAL {
?VisitedPlace <http://dbpedia.org/class/yago/WikicatMemberStatesOfTheUnitedNations> ?CountryURI .
}
} ";
////<http://dbpedia.org/class/yago/WikicatMemberStatesOfTheUnitedNations> ?CountryURI ;
if (pageNumber != 0 || pageSize != 0)
{
query.CommandText += $"LIMIT {pageSize} OFFSET {(pageNumber - 1) * pageSize}";
}
}
else if (placeUriFilter != null)
{
query.CommandText = @"SELECT *
WHERE
{
?VisitedPlace a <http://generativeobjects.com/apps#VisitedPlace> ;
<http://dbpedia.org/ontology/Place> @PlaceUri ;
<http://schema.org/startDate> ?Date;
<http://schema.org/description> ?Description .
OPTIONAL {
?VisitedPlace <http://generativeobjects.com/apps#VisitedPlaceType> ?PlaceOrCountry .
}
} ";
query.SetUri("@PlaceUri", new Uri(placeUriFilter));
}
else
{
query.CommandText = @"SELECT *
WHERE
{
?VisitedPlace a <http://generativeobjects.com/apps#VisitedPlace> ;
<http://dbpedia.org/class/yago/WikicatMemberStatesOfTheUnitedNations> @CountryURI ;
<http://schema.org/startDate> ?Date;
<http://schema.org/description> ?Description .
OPTIONAL {
?VisitedPlace <http://generativeobjects.com/apps#VisitedPlaceType> ?PlaceOrCountry .
}
} ";
query.SetUri("@CountryURI", new Uri(countryUriFilter));
}
var results = (SparqlResultSet)g.ExecuteQuery(query);
var toReturn = new DataObjectCollection <VisitedPlaceDataObject>();
toReturn.ObjectsDataSet = ApplicationSettings.Container.Resolve <IObjectsDataSet>();
foreach (var result in results)
{
var visitedPlace = MapSparqlResultToVisitedPlace(result);
visitedPlace.UserProfileUri = GetPropertyFromFilter(filterPredicate, "UserProfileUri");
toReturn.Add(visitedPlace);
}
return(toReturn);
}
finally
{
if (File.Exists(tempfile))
{
File.Delete(tempfile);
}
}
}
protected override int DoCount(LambdaExpression securityFilterExpression, string filterPredicate, object[] filterArguments, IObjectsDataSet context, Dictionary <string, object> parameters)
{
var userUri = GetUserBaseUriFromFilter(filterPredicate);
if (userUri == null)
{
// search all the users registered in application
var userNames = DataFacade.GOUserDataProvider.GetCollection(null).Select(u => u.UserName);
int count = 0;
foreach (var userName in userNames)
{
try
{
var userfilter = $"UserProfileUri == \"{userName}\" && {filterPredicate}";
count += DoCount(securityFilterExpression, userfilter, filterArguments, context, parameters);
}
catch (Exception e)
{ }
}
return(count);
}
string visitedPlaceDocumentName = "myvisitedplaces.ttl";
string visitedPlaceDocumentUri = $"{userUri}/public/{visitedPlaceDocumentName}";
string tempfile = null;
var placeUriFilter = GetPropertyFromFilter(filterPredicate, "PlaceURI");
var countryUriFilter = GetPropertyFromFilter(filterPredicate, "CountryURI");
try
{
tempfile = DataProviderHelper.DownloadFile(visitedPlaceDocumentUri, ".ttl");
var g = new Graph();
g.LoadFromFile(tempfile);
//UriLoader.Load(g, new Uri(visitedPlaceDocumentUri)); // NOT WORKING ... ??? SOMEHOW SHOULD WORK
var query = new SparqlParameterizedString();
query.Namespaces.AddNamespace("go", new Uri("http://generativeobjects.com/apps#"));
query.Namespaces.AddNamespace("schem", new Uri("http://schema.org"));
if (placeUriFilter == null && countryUriFilter == null)
{
query.CommandText = @"SELECT count(?visitedplace) AS ?count
WHERE {
?visitedplace a go:VisitedPlace
} ";
}
else if (placeUriFilter != null)
{
query.CommandText = @"SELECT count(?visitedplace) AS ?count
WHERE {
?visitedplace a go:VisitedPlace ;
<http://dbpedia.org/ontology/Place> @PlaceUri .
} ";
query.SetUri("@PlaceUri", new Uri(placeUriFilter));
}
else
{
query.CommandText = @"SELECT count(?visitedplace) AS ?count
WHERE {
?visitedplace a go:VisitedPlace ;
<http://dbpedia.org/class/yago/WikicatMemberStatesOfTheUnitedNations> @CountryURI .
} ";
query.SetUri("@CountryURI", new Uri(countryUriFilter));
}
var results = (SparqlResultSet)g.ExecuteQuery(query);
var res = results.Single();
var count = Convert.ToInt32((res.Single().Value as BaseLiteralNode).Value);
return(count);
}
finally
{
if (File.Exists(tempfile))
{
File.Delete(tempfile);
}
}
}
protected override VisitedPlaceDataObject DoGet(VisitedPlaceDataObject entity, LambdaExpression securityFilterExpression, List <string> includes, IObjectsDataSet context, Dictionary <string, object> parameters)
{
var userUri = DataProviderHelper.GetWebIdRootURL(entity.UserProfileUri);
string visitedPlaceDocumentName = "myvisitedplaces.ttl";
string visitedPlacesDocumentUri = $"{userUri}/public/{visitedPlaceDocumentName}";
//string visitedPlaceUri = $"{visitedPlacesDocumentUri}#{entity.Id}"; // to be used with UriLoader.Load
string tempfile = null;
try
{
tempfile = DataProviderHelper.DownloadFile(visitedPlacesDocumentUri, ".ttl");
var g = new Graph();
g.LoadFromFile(tempfile);
//UriLoader.Load(g, new Uri(visitedPlaceDocumentUri)); // NOT WORKING ... ??? SOMEHOW SHOULD WORK
var query = new SparqlParameterizedString();
query.CommandText = @"SELECT *
WHERE
{
@VisitedPlace <http://schema.org/startDate> ?Date ;
<http://schema.org/description> ?Description.
OPTIONAL {
@VisitedPlace <http://generativeobjects.com/apps#VisitedPlaceType> ?PlaceOrCountry .
}
OPTIONAL {
@VisitedPlace <http://dbpedia.org/ontology/Place> ?PlaceURI .
}
OPTIONAL {
@VisitedPlace <http://dbpedia.org/class/yago/WikicatMemberStatesOfTheUnitedNations> ?CountryURI .
}
}";
// <http://dbpedia.org/class/yago/WikicatMemberStatesOfTheUnitedNations> ?CountryURI ;
string visitedPlaceLocalFileUri = $"file://////{tempfile}#{entity.Id}";
query.SetUri("VisitedPlace", new Uri(visitedPlaceLocalFileUri));
var results = (SparqlResultSet)g.ExecuteQuery(query);
var result = results.SingleOrDefault();
if (result == null)
{
throw new GOServerException("Cannot load the VisitedPlace");
}
var visitedPlace = MapSparqlResultToVisitedPlace(result, mapId: false);
visitedPlace.Id = entity.Id;
visitedPlace.UserProfileUri = entity.UserProfileUri;
var dataset = ApplicationSettings.Container.Resolve <IObjectsDataSet>();
dataset.AddObject(visitedPlace);
return(visitedPlace);
}
finally
{
if (File.Exists(tempfile))
{
File.Delete(tempfile);
}
}
}