/// <summary>
/// Creates a new table in a Microsoft SQL Server database and copies rows from an existing datasource.
/// </summary>
/// <remarks>
/// <para>The datatable created will contain six extra columns besides the attribute data: "OID" (Object ID row),
/// "WKB_Geometry" (Geometry stored as WKB), and Envelope_MinX, Envelope_MinY, Envelope_MaxX, Envelope_MaxY
/// for geometry bounding box.</para>
/// <para>
/// <example>
/// Upload a ShapeFile to a database:
/// <code>
/// public void CreateDatabase(string shapeFile)
/// {
/// if (!System.IO.File.Exists(shapeFile))
/// {
/// MessageBox.Show("File not found");
/// return;
/// }
/// ShapeFile shp = new ShapeFile(shapeFile, false);
/// //Create tablename from filename
/// string tablename = shapeFile.Substring(shapeFile.LastIndexOf('\\') + 1,
/// shapeFile.LastIndexOf('.') - shapeFile.LastIndexOf('\\') - 1);
/// //Create connectionstring
/// string connstr = @"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|GeoDatabase.mdf;Integrated Security=True;User Instance=True";
/// int count = SharpMap.Data.Providers.MsSql.CreateDataTable(shp, tablename, connstr);
/// MessageBox.Show("Uploaded " + count.ToString() + " features to datatable '" + tablename + "'");
/// }
/// </code>
/// </example>
/// </para>
/// </remarks>
/// <param name="datasource">Datasource to upload</param>
/// <param name="tablename">Name of table to create (existing table will be overwritten!)</param>
/// <param name="connstr">Connection string to database</param>
/// <returns>Number or rows inserted, -1 if failed and 0 if table created but no rows inserted.</returns>
public static int CreateDataTable(SharpMap.Data.Providers.IFeatureProvider datasource, string tablename, string connstr)
{
if (datasource is IFileBased)
{
IFileBased fileBasedDataSource = (IFileBased)datasource;
fileBasedDataSource.Open(fileBasedDataSource.Path);
}
// TODO: this should work as IFeature
FeatureDataRow geom = (FeatureDataRow)datasource.GetFeature(0);
DataColumnCollection columns = geom.Table.Columns;
int counter = -1;
using (SqlConnection conn = new SqlConnection(connstr))
{
SqlCommand command = new SqlCommand();
command.Connection = conn;
conn.Open();
//Try to drop table if it exists
try
{
command.CommandText = "DROP TABLE \"" + tablename + "\";";
command.ExecuteNonQuery();
}
catch { }
//Create new table for storing the datasource
string sql = "CREATE TABLE " + tablename + " (oid INTEGER IDENTITY PRIMARY KEY, WKB_Geometry Image, " +
"Envelope_MinX real, Envelope_MinY real, Envelope_MaxX real, Envelope_MaxY real";
foreach (DataColumn col in columns)
{
if (col.DataType != typeof(String))
{
sql += ", " + col.ColumnName + " " + Type2SqlType(col.DataType).ToString();
}
else
{
sql += ", " + col.ColumnName + " VARCHAR(256)";
}
}
command.CommandText = sql + ");";
command.ExecuteNonQuery();
counter++;
ICollection <int> indexes = datasource.GetObjectIDsInView(datasource.GetExtents());
//Select all indexes in shapefile, loop through each feature and insert them one-by-one
foreach (int idx in indexes)
{
//Get feature from shapefile
// TODO: this should work as IFeature
SharpMap.Data.FeatureDataRow feature = (FeatureDataRow)datasource.GetFeature(idx);
if (counter == 0)
{
//Create insert script
string strSQL = " (";
foreach (DataColumn col in feature.Table.Columns)
{
strSQL += "@" + col.ColumnName + ",";
}
strSQL += "@WKB_Geometry,@Envelope_MinX,@Envelope_MinY, " +
"@Envelope_MaxX,@Envelope_MaxY)";
strSQL = "INSERT INTO " + tablename + strSQL.Replace("@", "") + " VALUES" + strSQL;
command.CommandText = strSQL;
command.Parameters.Clear();
//Add datacolumn parameters
foreach (DataColumn col in feature.Table.Columns)
{
command.Parameters.Add("@" + col.ColumnName, Type2SqlType(col.DataType));
}
//Add geometry parameters
command.Parameters.Add("@WKB_Geometry", SqlDbType.VarBinary);
command.Parameters.Add("@Envelope_MinX", SqlDbType.Real);
command.Parameters.Add("@Envelope_MinY", SqlDbType.Real);
command.Parameters.Add("@Envelope_MaxX", SqlDbType.Real);
command.Parameters.Add("@Envelope_MaxY", SqlDbType.Real);
}
//Set values
foreach (DataColumn col in feature.Table.Columns)
{
command.Parameters["@" + col.ColumnName].Value = feature[col];
}
if (feature.Geometry != null)
{
command.Parameters["@WKB_Geometry"].Value = feature.Geometry.AsBinary(); //Add the geometry as Well-Known Binary
GeoAPI.Geometries.IEnvelope box = feature.Geometry.EnvelopeInternal;
command.Parameters["@Envelope_MinX"].Value = box.MinX;
command.Parameters["@Envelope_MinY"].Value = box.MinY;
command.Parameters["@Envelope_MaxX"].Value = box.MaxX;
command.Parameters["@Envelope_MaxY"].Value = box.MaxY;
}
else
{
command.Parameters["@WKB_Geometry"].Value = DBNull.Value;
command.Parameters["@Envelope_MinX"].Value = DBNull.Value;
command.Parameters["@Envelope_MinY"].Value = DBNull.Value;
command.Parameters["@Envelope_MaxX"].Value = DBNull.Value;
command.Parameters["@Envelope_MaxY"].Value = DBNull.Value;
}
//Insert row
command.ExecuteNonQuery();
counter++;
}
//Create indexes
command.Parameters.Clear();
command.CommandText = "CREATE INDEX [IDX_Envelope_MinX] ON " + tablename + " (Envelope_MinX)";
command.ExecuteNonQuery();
command.CommandText = "CREATE INDEX [IDX_Envelope_MinY] ON " + tablename + " (Envelope_MinY)";
command.ExecuteNonQuery();
command.CommandText = "CREATE INDEX [IDX_Envelope_MaxX] ON " + tablename + " (Envelope_MaxX)";
command.ExecuteNonQuery();
command.CommandText = "CREATE INDEX [IDX_Envelope_MaxY] ON " + tablename + " (Envelope_MaxY)";
command.ExecuteNonQuery();
conn.Close();
}
if (datasource is IFileBased)
{
((IFileBased)datasource).Close();
}
return(counter);
}
/// <summary>
/// Initializes a new instance of the <see cref="NtsProvider"/> class
/// from another <see cref="SharpMap.Data.Providers.IFeatureProvider" />.
/// </summary>
/// <param name="provider">
/// The base <see cref="SharpMap.Data.Providers.IFeatureProvider"/>
/// from witch initialize the <see cref="NtsProvider"/> instance.
/// </param>
/// <param name="operation">
/// The <see cref="GeometryOperationDelegate"/> to apply
/// to all geometry elements in the <paramref name="provider"/>.
/// </param>
/// <param name="precisionModel">
/// The <see cref="GisSharpBlog.NetTopologySuite.Geometries.PrecisionModel"/>
/// to use for define the precision of the geometry operations.
/// </param>
/// <seealso cref="PrecisionModels"/>
/// <seealso cref="GisSharpBlog.NetTopologySuite.Geometries.GeometryFactory"/>
public NtsProvider(SharpMap.Data.Providers.IFeatureProvider provider, GeometryOperationDelegate operation,
GisSharpBlog.NetTopologySuite.Geometries.PrecisionModel precisionModel) : this(provider, precisionModel)
{
operation(features);
}
/// <summary>
/// Initializes a new instance of the <see cref="NtsProvider"/> class
/// from another <see cref="SharpMap.Data.Providers.IFeatureProvider" />.
/// </summary>
/// <param name="provider">
/// The base <see cref="SharpMap.Data.Providers.IFeatureProvider"/>
/// from witch initialize the <see cref="NtsProvider"/> instance.
/// </param>
/// <param name="precisionModel">
/// The <see cref="GisSharpBlog.NetTopologySuite.Geometries.PrecisionModel"/>
/// to use for define the precision of the geometry operations.
/// </param>
/// <seealso cref="PrecisionModels"/>
/// <seealso cref="GisSharpBlog.NetTopologySuite.Geometries.GeometryFactory"/>
public NtsProvider(SharpMap.Data.Providers.IFeatureProvider provider,
GisSharpBlog.NetTopologySuite.Geometries.PrecisionModel precisionModel) : this(precisionModel)
{
BuildFromProvider(provider);
}
/// <summary>
/// Initializes a new instance of the <see cref="NtsProvider"/> class
/// from another <see cref="SharpMap.Data.Providers.IFeatureProvider" />.
/// </summary>
/// <param name="provider">
/// The base <see cref="SharpMap.Data.Providers.IFeatureProvider"/>
/// from witch initialize the <see cref="NtsProvider"/> instance.
/// </param>
/// <param name="operation">
/// The <see cref="GeometryOperationDelegate"/> to apply
/// to all geometry elements in the <paramref name="provider"/>.
/// </param>
public NtsProvider(SharpMap.Data.Providers.IFeatureProvider provider, GeometryOperationDelegate operation) : this(provider)
{
operation(features);
}
/// <summary>
/// Initializes a new instance of the <see cref="NtsProvider"/> class
/// from another <see cref="SharpMap.Data.Providers.IFeatureProvider" />.
/// </summary>
/// <param name="provider">
/// The base <see cref="SharpMap.Data.Providers.IFeatureProvider"/>
/// from witch initialize the <see cref="NtsProvider"/> instance.
/// </param>
public NtsProvider(SharpMap.Data.Providers.IFeatureProvider provider) : this()
{
BuildFromProvider(provider);
}
