Feature: support open parquet file (#2456)

Author: lixun910

DataViewer/DataSource.cpp

@@ -50,6 +50,7 @@ bool IDataSource::IsWritable(GdaConst::DataSourceType ds_type)
         ds_type == GdaConst::ds_gpkg ||
         ds_type == GdaConst::ds_mysql ||
         ds_type == GdaConst::ds_oci ||
+        ds_type == GdaConst::ds_parquet ||
         ds_type == GdaConst::ds_postgresql )
         return true;
     return false;
@@ -141,6 +142,8 @@ wxString IDataSource::GetDataTypeNameByExt(wxString ext)
         ds_format = "Idrisi";
     else if(ext.CmpNoCase("ods")==0)
         ds_format = "ODS";
+    else if(ext.CmpNoCase("parquet")==0)
+        ds_format = "Parquet";
 
     //else
     //    ds_format = "Unknown";
@@ -192,6 +195,7 @@ IDataSource* IDataSource::CreateDataSource(wxString data_type_name,
         type == GdaConst::ds_gpkg ||
         type == GdaConst::ds_xls ||
         type == GdaConst::ds_xlsx ||
+        type == GdaConst::ds_parquet ||
         type == GdaConst::ds_geo_json )
     {
         // using <file>xxx</file> to create DataSource instance
@@ -249,6 +253,7 @@ IDataSource* IDataSource::CreateDataSource(wxString ds_json)
                 type == GdaConst::ds_gpkg ||
                 type == GdaConst::ds_xls ||
                 type == GdaConst::ds_xlsx ||
+                type == GdaConst::ds_parquet ||
                 type == GdaConst::ds_geo_json )
             {
                 json_spirit::Value json_ds_path;

DialogTools/DatasourceDlg.cpp

@@ -52,6 +52,7 @@ void DatasourceDlg::Init()
 	ds_file_path = wxFileName("");
 
     // create file type dataset pop-up menu dynamically
+    ds_names.Add("GeoParquet (*.parquet)|*.parquet");
 	ds_names.Add("ESRI Shapefile (*.shp)|*.shp");
     ds_names.Add("ESRI File Geodatabase (*.gdb)|*.gdb");
     ds_names.Add("GeoJSON (*.geojson;*.json)|*.geojson;*.json");

GdaConst.cpp

@@ -773,6 +773,17 @@ void GdaConst::init()
 	datasrc_field_illegal_regex[ds_dbf] = db_field_name_illegal_regex;
 	datasrc_field_casesensitive[ds_dbf] = false;
 
+    datasrc_str_to_type["Parquet"] = ds_parquet;
+    datasrc_type_to_prefix[ds_parquet] = "";
+    datasrc_type_to_fullname[ds_parquet] = "Parquet";
+    // share the same with DBF
+    datasrc_table_lens[ds_parquet] = 128;
+    datasrc_field_lens[ds_parquet] = 10;
+    datasrc_field_warning[ds_parquet] = default_field_warning;
+    datasrc_field_regex[ds_parquet] = db_field_name_regex;
+    datasrc_field_illegal_regex[ds_parquet] = db_field_name_illegal_regex;
+    datasrc_field_casesensitive[ds_parquet] = false;
+    
 	datasrc_str_to_type["ESRI Shapefile"] = ds_shapefile;
 	datasrc_type_to_prefix[ds_shapefile] = "";
 	datasrc_type_to_fullname[ds_shapefile] = "ESRI Shapefile";

GdaConst.h

@@ -73,7 +73,8 @@ class GdaConst {
 		ds_esri_personal_gdb, ds_esri_arc_sde,
 		ds_csv, ds_dbf, ds_geo_json, ds_gml, ds_kml,
 		ds_mapinfo, ds_mysql, ds_ms_sql, ds_oci, ds_odbc, ds_postgresql,
-		ds_shapefile, ds_sqlite, ds_gpkg, ds_wfs, ds_xls, ds_xlsx, ds_osm, ds_ods, ds_cartodb, ds_unknown };
+		ds_shapefile, ds_sqlite, ds_gpkg, ds_wfs, ds_xls, ds_xlsx, ds_osm,
+        ds_ods, ds_cartodb, ds_parquet, ds_unknown };
 
 	static std::map<std::string, DataSourceType> datasrc_str_to_type;
 	static std::map<DataSourceType, std::string> datasrc_type_to_str;