private void UpdateListViewGraph()
{
try
{
listViewGraph.Items.Clear();
var graphs = new List <string>();
graphs.Add("default");
graphs.AddRange(fuseki.ListGraphs().Select(uri => uri.ToString()).OrderBy(ee => ee));
foreach (var uri in graphs)
{
var graphBase64 = GraphEditor.Base64Encode(uri);
var filePath = string.Format(@"{0}\{1}.txt", DocumentRoot, graphBase64);
var updateDate = "";
if (File.Exists(filePath))
{
var info = new FileInfo(filePath);
updateDate = info.LastWriteTime.ToShortDateString();
}
var item = new ListViewItem(new[] { uri, updateDate })
{
Tag = uri
};
listViewGraph.Items.Add(item);
}
UpdateListViewGraphColor("");
}
catch (Exception ex)
{
MessageBox.Show("error during UpdateListViewGraph. " + ex);
}
}
private void truncateToolStripMenuItem_Click(object sender, EventArgs e)
{
if (listViewGraph.SelectedItems.Count != 1)
{
MessageBox.Show("no graph is selected");
return;
}
var graphUri = (string)listViewGraph.SelectedItems[0].Tag;
if (
MessageBox.Show(string.Format("are you want to truncate {0}", graphUri), "Warning",
MessageBoxButtons.YesNo) != DialogResult.Yes)
{
return;
}
var tabPage = GetTabPage(graphUri);
if (tabPage != null)
{
tabControlGraph.TabPages.Remove(tabPage);
}
var loadUri = graphUri;
if (graphUri == "default")
{
loadUri = "";
}
var g = new Graph();
fuseki.LoadGraph(g, loadUri);
g.Clear();
if (graphUri != "default")
{
SetNewGraphTriple(g, graphUri);
}
fuseki.SaveGraph(g);
var graphBase64 = GraphEditor.Base64Encode(graphUri);
var filePath = string.Format(@"{0}\{1}.txt", DocumentRoot, graphBase64);
File.WriteAllText(filePath, "");
}
private void duplicateToolStripMenuItem_Click(object sender, EventArgs e)
{
if (listViewGraph.SelectedItems.Count != 1)
{
MessageBox.Show("no graph is selected");
return;
}
var graphUri = (string)listViewGraph.SelectedItems[0].Tag;
var g = new Graph();
fuseki.LoadGraph(g, graphUri);
var form = new SingleForm {
Title = "Set New Graph URI", Label = "URI", Content = graphUri
};
if (form.ShowDialog() != DialogResult.OK)
{
return;
}
var srcUri = graphUri;
var srcGraphBase64 = GraphEditor.Base64Encode(srcUri);
var dstUri = form.Content;
var dstGraphLabel = dstUri.Split(new[] { '/', '#' }).Last();
var dstGraphBase64 = GraphEditor.Base64Encode(dstUri);
var newg = new Graph {
BaseUri = new Uri(dstUri)
};
var nLabel = newg.CreateUriNode(UriFactory.Create("http://www.w3.org/2000/01/rdf-schema#label"));
newg.Assert(new Triple(newg.CreateUriNode(UriFactory.Create(dstUri)), nLabel,
newg.CreateLiteralNode(dstGraphLabel)));
var cnt = 0;
foreach (var triple in g.Triples)
{
INode news = newg.CreateUriNode(UriFactory.Create(triple.Subject.ToString().Replace(srcUri, dstUri)));
INode newp = newg.CreateUriNode(UriFactory.Create(triple.Predicate.ToString().Replace(srcUri, dstUri)));
INode newo = null;
if (triple.Object.NodeType == NodeType.Uri)
{
newo = newg.CreateUriNode(UriFactory.Create(triple.Object.ToString().Replace(srcUri, dstUri)));
}
else if (triple.Object.NodeType == NodeType.Literal)
{
newo = newg.CreateLiteralNode(triple.Object.ToString().Replace(srcUri, dstUri));
}
var asserted = newg.Assert(new Triple(news, newp, newo));
if (asserted)
{
cnt++;
}
}
var srcPath = string.Format(@"{0}\{1}.txt", DocumentRoot, srcGraphBase64);
var dstPath = string.Format(@"{0}\{1}.txt", DocumentRoot, dstGraphBase64);
File.Copy(srcPath, dstPath);
fuseki.SaveGraph(newg);
UpdateListViewGraph();
MessageBox.Show(string.Format("total {0} triples cloned", cnt));
}
