public int NetworkClassId(string className)
{
if (_fdb == null || _dataset == null)
{
return(-1);
}
return(_fdb.FeatureClassID(_fdb.DatasetID(_dataset.DatasetName), className));
}
async public Task <int> NetworkClassId(string className)
{
if (_fdb == null || _dataset == null)
{
return(-1);
}
return(await _fdb.FeatureClassID(await _fdb.DatasetID(_dataset.DatasetName), className));
}
async public Task <IFeature> NextFeature()
{
if (_edgeCursor == null && _edgeFcs != null && _edgeFcIndex < _edgeFcs.Count)
{
IFeatureClass fc = _edgeFcs[_edgeFcIndex++];
_fcid = await _fdb.FeatureClassID(await _fdb.DatasetID(fc.Dataset.DatasetName), fc.Name);
if (_fcid < 0)
{
return(await NextFeature());
}
if (fc.Name == _networkName + "_ComplexEdges")
{
_fcid = -1;
}
IQueryFilter f = (IQueryFilter)_filter.Clone();
if (f.SubFields != "*")
{
f.AddField(fc.IDFieldName);
f.AddField(fc.ShapeFieldName);
}
_edgeCursor = await fc.GetFeatures(f);
if (_edgeCursor == null)
{
return(await NextFeature());
}
}
if (_edgeCursor != null)
{
IFeature feature = await _edgeCursor.NextFeature();
if (feature != null)
{
feature.Fields.Add(new FieldValue("NETWORK#FCID", _fcid));
return(feature);
}
_edgeCursor.Dispose();
_edgeCursor = null;
return(await NextFeature());
}
if (_nodeCursor == null && _nodeFc != null)
{
_nodeCursor = await _nodeFc.GetFeatures(_filter);
}
if (_nodeCursor != null)
{
return(await _nodeCursor.NextFeature());
}
return(null);
}
public SQLiteFDBNetworkFeatureClass(SQLiteFDB fdb, IDataset dataset, string name, GeometryDef geomDef)
{
_fdb = fdb;
_fcid = _fdb.FeatureClassID(_fdb.DatasetID(dataset.DatasetName), name);
_dataset = dataset;
_geomDef = (geomDef != null) ? geomDef : new GeometryDef();
if (_geomDef != null && _geomDef.SpatialReference == null && dataset is IFeatureDataset)
{
_geomDef.SpatialReference = ((IFeatureDataset)dataset).SpatialReference;
}
_fields = new Fields();
_name = _aliasname = name;
IDatasetElement element = _dataset[_name + "_Nodes"];
if (element != null)
{
_nodeFc = element.Class as IFeatureClass;
}
element = _dataset[_name + "_ComplexEdges"];
if (element != null && element.Class is IFeatureClass)
{
_edgeFcs.Add(-1, (IFeatureClass)element.Class);
}
DataTable tab = _fdb.Select("FCID", "FDB_NetworkClasses", "NetworkId=" + _fcid);
if (tab != null && tab.Rows.Count > 0)
{
StringBuilder where = new StringBuilder();
where.Append("\"GeometryType\"=" + ((int)geometryType.Polyline).ToString() + " AND \"ID\" in(");
for (int i = 0; i < tab.Rows.Count; i++)
{
if (i > 0)
{
where.Append(",");
}
where.Append(tab.Rows[i]["FCID"].ToString());
}
where.Append(")");
tab = _fdb.Select("ID,Name", "FDB_FeatureClasses", where.ToString());
if (tab != null)
{
foreach (DataRow row in tab.Rows)
{
element = _dataset[row["name"].ToString()];
if (element != null && element.Class is IFeatureClass)
{
_edgeFcs.Add(Convert.ToInt32(row["id"]), element.Class as IFeatureClass);
}
}
}
}
_weights = _fdb.GraphWeights(name);
Dictionary <Guid, string> weightTableNames = null;
Dictionary <Guid, GraphWeightDataType> weightDataTypes = null;
if (_weights != null && _weights.Count > 0)
{
weightTableNames = new Dictionary <Guid, string>();
weightDataTypes = new Dictionary <Guid, GraphWeightDataType>();
foreach (IGraphWeight weight in _weights)
{
if (weight == null)
{
continue;
}
weightTableNames.Add(weight.Guid, _fdb.TableName(_name + "_Weights_" + weight.Guid.ToString("N").ToLower()));
weightDataTypes.Add(weight.Guid, weight.DataType);
}
}
_pageManager = new NetworkObjectSerializer.PageManager(
gView.Framework.Db.DataProvider.SQLiteProviderFactory,
_fdb.ConnectionString, _name,
_fdb.TableName("FC_" + _name),
_fdb.TableName(_name + "_Edges"),
_fdb.TableName("FC_" + name + "_Nodes"),
weightTableNames, weightDataTypes, _fdb
);
}
