public IFeatureClass OpenFeatureClass(string Name)
{
try
{
log.enterFunc("OpenFeatureClass");
// Name should look like "view" or "schema.view".
// Default the schema to "public".
string[] bits = Name.Split('.');
string schema = "public";
string view = bits[0];
if (bits.Length > 1)
{
schema = bits[0];
view = bits[1];
}
PostGisDatasetName dsName = new PostGisDatasetName();
dsName.WorkspaceName = PostGisWorkspaceName;
dsName.Name = schema;
// Todo - ensure the schema exists. Is it possible?
PostGisFeatureDataset featureDs = new PostGisFeatureDataset(dsName, this);
IFeatureClass retVal = new PostGisFeatureClass(featureDs, view);
log.leaveFunc();
return retVal;
}
catch (Exception ex)
{
System.Diagnostics.EventLog.WriteEntry("OpenFeatureClass", ex.ToString() + "///" + ex.StackTrace, System.Diagnostics.EventLogEntryType.Information);
return null;
}
}
public PostGisFeatureDataset(PostGisDatasetName postGisDatasetName, PostGisFeatureWorkspace PostGisFeatureWorkspace)
{
m_dsName = postGisDatasetName;
m_fwks = PostGisFeatureWorkspace;
}
public PostGisFeatureDataset(PostGisDatasetName postGisDatasetName)
{
}
/// <summary>
/// This constructor accepts a connection and loads the array that will drive the enumerator
/// </summary>
/// <param name="conn">connection</param>
public PostGisEnumDatasetName(Connection conn) //constructor with connection
{
try
{
m_conn = conn; //save the connection. we save not need to do list.
string sql = "select count(*) from public.geometry_columns;";
AutoDataReader dr = conn.doQuery(sql); //get the number of layers in the database
dr.Read();
layerCount = Convert.ToInt32(dr["count"]); //capture the layer count
dr.Close();
sql = "select * from public.geometry_columns order by f_table_schema, f_table_name;";
dr = conn.doQuery(sql); //get the records for the layers
if (layerCount > 0) //if there's data
{
pgdsn = new PostGisDatasetName[layerCount]; //init the array
int i = 0;
while (dr.Read()) //loop the data reader
{
pgdsn[i] = new PostGisDatasetName(); //instantiate a new dataset name
pgdsn[i].Name = dr["f_table_schema"] + "." + dr["f_table_name"]; //assign the name using the schema.view format
i += 1;
}
}
}
catch (Exception ex)
{
//what the heck went wrong here?
System.Diagnostics.EventLog.WriteEntry("PostGisEnumDatasetName", ex.ToString() + "///" + ex.StackTrace, System.Diagnostics.EventLogEntryType.Error);
}
}
