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/******************************************************************************
* $Id: hdf5dataset.h 26062 2013-06-04 21:16:21Z rouault $
*
* Project: Hierarchical Data Format Release 5 (HDF5)
* Purpose: Header file for HDF5 datasets reader.
* Author: Denis Nadeau (denis.nadeau@gmail.com)
*
******************************************************************************
* Copyright (c) 2005, Frank Warmerdam <warmerdam@pobox.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#ifndef _HDF5DATASET_H_INCLUDED_
#define _HDF5DATASET_H_INCLUDED_
#include "gdal_pam.h"
#include "cpl_list.h"
typedef struct HDF5GroupObjects {
char *pszName;
char *pszPath;
char *pszUnderscorePath;
char *pszTemp;
int nType;
int nIndex;
hsize_t nbObjs;
int nbAttrs;
int nRank;
hsize_t *paDims;
hid_t native;
hid_t HDatatype;
unsigned long objno[2];
struct HDF5GroupObjects *poHparent;
struct HDF5GroupObjects *poHchild;
} HDF5GroupObjects;
herr_t HDF5CreateGroupObjs(hid_t, const char *,void *);
/************************************************************************/
/* ==================================================================== */
/* HDF5Dataset */
/* ==================================================================== */
/************************************************************************/
class HDF5Dataset : public GDALPamDataset
{
protected:
hid_t hHDF5;
hid_t hGroupID; /* H handler interface */
char **papszSubDatasets;
int bIsHDFEOS;
int nDatasetType;
int nSubDataCount;
HDF5GroupObjects *poH5RootGroup; /* Contain hdf5 Groups information */
CPLErr ReadGlobalAttributes(int);
CPLErr HDF5ListGroupObjects(HDF5GroupObjects *, int );
CPLErr CreateMetadata( HDF5GroupObjects *, int );
HDF5GroupObjects* HDF5FindDatasetObjects( HDF5GroupObjects *, const char * );
HDF5GroupObjects* HDF5FindDatasetObjectsbyPath( HDF5GroupObjects *, const char * );
char* CreatePath(HDF5GroupObjects *);
void DestroyH5Objects(HDF5GroupObjects *);
GDALDataType GetDataType(hid_t);
const char * GetDataTypeName(hid_t);
/**
* Reads an array of double attributes from the HDF5 metadata.
* It reads the attributes directly on it's binary form directly,
* thus avoiding string conversions.
*
* Important: It allocates the memory for the attributes internally,
* so the caller must free the returned array after using it.
* @param pszAttrName Name of the attribute to be read.
* the attribute name must be the form:
* root attribute name
* SUBDATASET/subdataset attribute name
* @param pdfValues pointer wich will store the array of doubles read.
* @param nLen it stores the length of the array read. If NULL it doesn't inform
* the lenght of the array.
* @return CPLErr CE_None in case of success, CE_Failure in case of failure
*/
CPLErr HDF5ReadDoubleAttr(const char* pszAttrName,double **pdfValues,int *nLen=NULL);
public:
char **papszMetadata;
HDF5GroupObjects *poH5CurrentObject;
HDF5Dataset();
~HDF5Dataset();
static GDALDataset *Open(GDALOpenInfo *);
static int Identify(GDALOpenInfo *);
};
#endif /* _HDF5DATASET_H_INCLUDED_ */
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