GDAL

gdalalg_vector_concat.h
1/******************************************************************************
2 *
3 * Project: GDAL
4 * Purpose: gdal "vector concat" subcommand
5 * Author: Even Rouault <even dot rouault at spatialys.com>
6 *
7 ******************************************************************************
8 * Copyright (c) 2025, Even Rouault <even dot rouault at spatialys.com>
9 *
10 * SPDX-License-Identifier: MIT
11 ****************************************************************************/
12
13#ifndef GDALALG_VECTOR_CONCAT_INCLUDED
14#define GDALALG_VECTOR_CONCAT_INCLUDED
15
16#include "gdalalg_vector_pipeline.h"
17
18#include "ogrsf_frmts.h"
19#include "ogrlayerpool.h"
20
22
23/************************************************************************/
24/* GDALVectorConcatAlgorithm */
25/************************************************************************/
26
27 class GDALVectorConcatAlgorithm /* non final */
28 : public GDALVectorPipelineStepAlgorithm
29{
30 public:
31 static constexpr const char *NAME = "concat";
32 static constexpr const char *DESCRIPTION = "Concatenate vector datasets.";
33 static constexpr const char *HELP_URL = "/programs/gdal_vector_concat.html";
34
35 explicit GDALVectorConcatAlgorithm(bool bStandalone = false);
36 ~GDALVectorConcatAlgorithm() override;
37
38 bool CanBeFirstStep() const override
39 {
40 return true;
41 }
42
43 private:
44 bool RunStep(GDALPipelineStepRunContext &ctxt) override;
45 bool RunImpl(GDALProgressFunc pfnProgress, void *pProgressData) override;
46
47 std::string m_layerNameTemplate{};
48 std::string m_sourceLayerFieldName{};
49 std::string m_sourceLayerFieldContent{};
50 std::string m_mode = "merge-per-layer-name";
51 std::string m_fieldStrategy = "union";
52 std::string m_srsCrs{};
53 std::string m_dstCrs{};
54
55 std::unique_ptr<OGRLayerPool> m_poLayerPool{};
56 std::vector<std::unique_ptr<OGRLayer>> m_tempLayersKeeper{};
57};
58
59/************************************************************************/
60/* GDALVectorConcatAlgorithmStandalone */
61/************************************************************************/
62
63 class GDALVectorConcatAlgorithmStandalone final
64 : public GDALVectorConcatAlgorithm
65{
66 public:
67 GDALVectorConcatAlgorithmStandalone()
68 : GDALVectorConcatAlgorithm(/* standaloneStep = */ true)
69 {
70 }
71
72 ~GDALVectorConcatAlgorithmStandalone() override;
73};
74
76
77#endif
ogrsf_frmts.h
Classes related to registration of format support, and opening datasets.