gdalalg_dataset_identify.h

/******************************************************************************
 *
 * Project:  GDAL
 * Purpose:  gdal "dataset identify" subcommand
 * Author:   Even Rouault <even dot rouault at spatialys.com>
 *
 ******************************************************************************
 * Copyright (c) 2025, Even Rouault <even dot rouault at spatialys.com>
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/
 
#ifndef GDALALG_MANAGE_IDENTIFY_INCLUDED
#define GDALALG_MANAGE_IDENTIFY_INCLUDED
 
#include "gdalalgorithm.h"
 
#include "cpl_json_streaming_writer.h"
#include "cpl_vsi_virtual.h"
 
 
class OGRLayer;
 
/************************************************************************/
/*                     GDALDatasetIdentifyAlgorithm                     */
/************************************************************************/
 
class GDALDatasetIdentifyAlgorithm final : public GDALAlgorithm
{
  public:
    static constexpr const char *NAME = "identify";
    static constexpr const char *DESCRIPTION =
        "Identify driver opening dataset(s).";
    static constexpr const char *HELP_URL =
        "/programs/gdal_dataset_identify.html";
 
    GDALDatasetIdentifyAlgorithm();
    ~GDALDatasetIdentifyAlgorithm() override;
 
  private:
    std::vector<std::string> m_filename{};
    std::string m_format{};
    std::vector<std::string> m_creationOptions{};
    std::vector<std::string> m_layerCreationOptions{};
    GDALArgDatasetValue m_outputDataset{};
    std::string m_outputLayerName{};
    bool m_overwrite = false;
    std::string m_output{};
    bool m_recursive = false;
    bool m_forceRecursive = false;
    bool m_reportFailures = false;
    bool m_detailed = false;
    bool m_stdout = false;
 
    CPLJSonStreamingWriter m_oWriter;
    VSIVirtualHandleUniquePtr m_fpOut{};
    std::unique_ptr<GDALDataset> m_poOutDS{};
    OGRLayer *m_poLayer = nullptr;
 
    bool RunImpl(GDALProgressFunc, void *) override;
    void Print(const char *str);
    bool Process(const char *pszTarget, CSLConstList papszSiblingList,
                 GDALProgressFunc pfnProgress, void *pProgressData);
    static void JSONPrint(const char *pszTxt, void *pUserData);
 
    GDALDatasetIdentifyAlgorithm(const GDALDatasetIdentifyAlgorithm &) = delete;
    GDALDatasetIdentifyAlgorithm &
    operator=(const GDALDatasetIdentifyAlgorithm &) = delete;
};
 
 
#endif