public static RdfWriter Create(string type, TextWriter output, RdfXmlWriter.Options options)
{
switch (RdfReader.NormalizeMimeType(type))
{
case "xml":
#if !SILVERLIGHT
return(new RdfXmlWriter(output, options));
#else
throw new NotSupportedException("RDF/XML output is not supported by the Silverlight build of the SemWeb library.");
#endif
case "n3":
#if DOTNET2
return(new N3Writer(output));
#endif
case "turtle":
return(new TurtleWriter(output));
case "nt":
case "ntriples":
return(new NTriplesWriter(output));
case "dot":
return(new GraphVizWriter(output));
default:
throw new ArgumentException("Unknown parser or MIME type: " + type);
}
}
private void ButtonGroupAdd_Click(object sender, EventArgs e)
{
if (ListViewCandidates.SelectedItems.Count < 2)
{
MessageBox.Show("To use the Group add functionality you have to select at least 2 candidates from the list");
return;
}
Store tempStore = new MemoryStore();
foreach (ListViewItem item in ListViewCandidates.SelectedItems)
{
string label = (item.Tag as Tuple<string, double>).Item1;
string uri = GetSuggestedConceptUri(label);
if (_ao.ConceptUriToDescription.ContainsKey(uri))
{
MessageBox.Show("The concept with uri " + uri + " already exists. Ignoring it.");
continue;
}
if (_ao.ConceptLabelToUri.ContainsKey(label.ToLower()))
{
MessageBox.Show("The label " + label + " is already assigned to concept " + _ao.ConceptLabelToUri[label.ToLower()] + ". Skipping the label.");
continue;
}
tempStore.Add(new Statement(new Entity(uri), AnnotationOntology.RelRdfsLabel, (Literal)label));
}
// remove the added items
List<ListViewItem> selectedItems = new List<ListViewItem>(from ListViewItem item in ListViewCandidates.SelectedItems select item);
foreach (var item in selectedItems)
ListViewCandidates.Items.Remove(item);
// send the statements as an event
System.IO.StringWriter strWriter = new System.IO.StringWriter();
RdfXmlWriter.Options options = new RdfXmlWriter.Options();
options.EmbedNamedNodes = false;
using (RdfWriter writer = new RdfXmlWriter(strWriter, options))
writer.Write(tempStore);
string newRDFData = strWriter.ToString();
SendRDFData(newRDFData);
_ao.AddNewRDFData(newRDFData, true);
}
private void ButtonAddSelectedConcept_Click(object sender, EventArgs e)
{
string candidate = TextBoxLabels.Text;
Debug.Assert(!string.IsNullOrEmpty(candidate));
if (string.IsNullOrEmpty(TextBoxConceptUri.Text))
{
MessageBox.Show("You have to specify a URI of the concept.");
return;
}
if (_ao.ConceptUriToDescription.ContainsKey(TextBoxConceptUri.Text) && _editingExistingConcept == false)
{
MessageBox.Show("The concept with uri " + TextBoxConceptUri.Text + " already exists. Please specify a unique URI.");
return;
}
// compute what are all the labels for the concept
List<string> labels = candidate.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries).ToList();
labels = (from label in labels select label.Trim()).ToList();
if (labels.Count == 0)
{
MessageBox.Show("You have to specify at least one label for the concept.");
return;
}
string uri = TextBoxConceptUri.Text;
Entity concept = new Entity(uri);
Store tempStore = new MemoryStore();
foreach (string label in labels)
{
if (_ao.ConceptLabelToUri.ContainsKey(label.ToLower()) && _editingExistingConcept == false)
{
MessageBox.Show("The label " + label + " is already assigned to concept " + _ao.ConceptLabelToUri[label.ToLower()] + ". Skipping the label.");
continue;
}
tempStore.Add(new Statement(concept, AnnotationOntology.RelRdfsLabel, (Literal)label));
}
if (!string.IsNullOrEmpty(TextBoxDescription.Text))
tempStore.Add(new Statement(concept, AnnotationOntology.RelRdfsComment, (Literal)TextBoxDescription.Text));
foreach (ListViewItem item in ListViewRelated.Items)
{
string conceptUri = (string)item.Tag;
string relationStr = item.SubItems[2].Text;
tempStore.Add(new Statement(concept, (Entity)_relationToUri[relationStr], new Entity(conceptUri)));
}
// send the statements as an event
System.IO.StringWriter strWriter = new System.IO.StringWriter();
RdfXmlWriter.Options options = new RdfXmlWriter.Options();
options.EmbedNamedNodes = false;
using (RdfWriter writer = new RdfXmlWriter(strWriter, options))
writer.Write(tempStore);
string newRDFData = strWriter.ToString();
SendRDFData(newRDFData);
_ao.AddNewRDFData(newRDFData, true);
// remove the added items
List<ListViewItem> selectedItems = new List<ListViewItem>(from ListViewItem item in ListViewCandidates.SelectedItems select item);
foreach (var item in selectedItems)
ListViewCandidates.Items.Remove(item);
TextBoxLabels.Text = "";
TextBoxConceptUri.Text = "";
TextBoxDescription.Text = "";
ListViewRelated.Items.Clear();
}
/// <summary>
/// new ontology concepts can be added while KEUI is running. we have to store the new data
/// </summary>
public void SaveAnnotationOntology(string fileName)
{
try
{
string RDFS = "http://www.w3.org/2000/01/rdf-schema#";
string RDF = "http://www.w3.org/1999/02/22-rdf-syntax-ns#";
Entity rdfValue = RDF + "value";
Entity rdfsComment = RDFS + "comment";
// remove existing value properties
_conceptsStore.Remove(new Statement(null, rdfValue, null));
// create new value properties with updated values
foreach (Statement s in _conceptsStore.Select(new Statement(null, rdfsComment, null)))
{
int value = GetConceptFrequencyCount(s.Subject.Uri);
if (value > 0)
_conceptsStore.Add(new Statement(s.Subject.Uri, rdfValue, (Literal)value.ToString()));
}
string tempName = fileName + ".temp";
RdfXmlWriter.Options options = new RdfXmlWriter.Options();
options.EmbedNamedNodes = false;
using (RdfWriter writer = new RdfXmlWriter(tempName, options))
{
writer.Namespaces.AddNamespace("http://example.org/", "ex");
writer.Namespaces.AddNamespace("http://www.w3.org/2002/27/owl#", "owl");
writer.Namespaces.AddNamespace("http://dbpedia.org/ontology/", "DBpedia");
writer.Namespaces.AddNamespace("http://ailab.ijs.si/alert/predicate/", "ailab");
writer.Namespaces.AddNamespace("http://purl.org/dc/terms/", "purl");
writer.Namespaces.AddNamespace("http://www.w3.org/1999/02/22-rdf-syntax-ns#", "rdf");
writer.Namespaces.AddNamespace("http://www.w3.org/2000/01/rdf-schema#", "rdfs");
writer.Write(_conceptsStore);
}
// if we successfully saved the ontology to the temp name only then rename the temp file to the correct name
if (System.IO.File.Exists(fileName))
System.IO.File.Delete(fileName);
System.IO.File.Move(tempName, fileName);
}
catch (Exception ex)
{
AddEvent("Exception while saving the annotation ontology. Error: " + ex.Message);
GenLib.Log.LogService.LogException("Exception while saving the annotation ontology", ex);
}
}
public string GetAnnotationOntologyRDF(bool includeComment, bool includeLinksTo)
{
try
{
Store smallStore = new MemoryStore();
foreach (Statement s in _conceptsStore.Select(new Statement(null, null, null)))
{
if (s.Predicate == RelRdfsComment && includeComment == false)
continue;
if (s.Predicate == RelDbAbstract && includeComment == false)
continue;
if (s.Predicate == RelLinksTo && includeLinksTo == false)
continue;
smallStore.Add(s);
}
System.IO.StringWriter strWriter = new System.IO.StringWriter();
RdfXmlWriter.Options options = new RdfXmlWriter.Options();
options.EmbedNamedNodes = false;
using (RdfWriter writer = new RdfXmlWriter(strWriter, options))
{
writer.Namespaces.AddNamespace("http://example.org/", "ex");
writer.Namespaces.AddNamespace("http://www.w3.org/2002/27/owl#", "owl");
writer.Namespaces.AddNamespace("http://dbpedia.org/ontology/", "DBpedia");
writer.Namespaces.AddNamespace("http://ailab.ijs.si/alert/predicate/", "ailab");
writer.Namespaces.AddNamespace("http://purl.org/dc/terms/", "purl");
writer.Namespaces.AddNamespace("http://www.w3.org/1999/02/22-rdf-syntax-ns#", "rdf");
writer.Namespaces.AddNamespace("http://www.w3.org/2000/01/rdf-schema#", "rdfs");
writer.Write(smallStore);
}
return strWriter.ToString();
}
catch (Exception ex)
{
AddEvent("Exception while sending the annotation ontology as string. Error: " + ex.Message);
GenLib.Log.LogService.LogException("Exception while sending the annotation ontology as string", ex);
return "";
}
}
public void Describe(SelectableSource source, TextWriter output)
{
RdfXmlWriter.Options opts = new RdfXmlWriter.Options();
opts.KeepRoots = true;
using (RdfWriter w = RdfWriter.Create(MimeType, output, opts))
Describe(source, w);
}