/
vfkdatablockdb.cpp
1108 lines (911 loc) · 32.7 KB
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vfkdatablockdb.cpp
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/******************************************************************************
* $Id: vfkdatablockdb.cpp 33713 2016-03-12 17:41:57Z goatbar $
*
* Project: VFK Reader - Data block definition (DB)
* Purpose: Implements VFKDataBlockDB
* Author: Martin Landa, landa.martin gmail.com
*
******************************************************************************
* Copyright (c) 2012-2014, Martin Landa <landa.martin gmail.com>
* Copyright (c) 2012-2014, Even Rouault <even dot rouault at mines-paris dot org>
*
* 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.
****************************************************************************/
#include <algorithm>
#include "vfkreader.h"
#include "vfkreaderp.h"
#include "cpl_conv.h"
#include "cpl_error.h"
/*!
\brief Load geometry (point layers)
\return number of invalid features
*/
int VFKDataBlockDB::LoadGeometryPoint()
{
int nInvalid, rowId, nGeometries;
bool bSkipInvalid;
/* long iFID; */
double x, y;
CPLString osSQL;
VFKFeatureDB *poFeature;
VFKReaderDB *poReader;
nInvalid = nGeometries = 0;
poReader = (VFKReaderDB*) m_poReader;
if (LoadGeometryFromDB()) /* try to load geometry from DB */
return 0;
bSkipInvalid = EQUAL(m_pszName, "OB") || EQUAL(m_pszName, "OP") || EQUAL(m_pszName, "OBBP");
osSQL.Printf("SELECT SOURADNICE_Y,SOURADNICE_X,%s,rowid FROM %s",
FID_COLUMN, m_pszName);
if (poReader->IsSpatial())
poReader->ExecuteSQL("BEGIN");
std::vector<VFKDbValue> record;
record.push_back(VFKDbValue(DT_DOUBLE));
record.push_back(VFKDbValue(DT_DOUBLE));
record.push_back(VFKDbValue(DT_BIGINT));
record.push_back(VFKDbValue(DT_INT));
poReader->PrepareStatement(osSQL.c_str());
while(poReader->ExecuteSQL(record) == OGRERR_NONE && record.size() > 0) {
/* read values */
x = -1.0 * (double) record[0]; /* S-JTSK coordinate system expected */
y = -1.0 * (double) record[1];
#ifdef DEBUG
const GIntBig iFID = (GIntBig) record[2];
#endif
rowId = (int) record[3];
poFeature = (VFKFeatureDB *) GetFeatureByIndex(rowId - 1);
CPLAssert(NULL != poFeature && poFeature->GetFID() == iFID);
/* create geometry */
OGRPoint pt(x, y);
if (!poFeature->SetGeometry(&pt)) {
nInvalid++;
continue;
}
/* store also geometry in DB */
if (poReader->IsSpatial() &&
SaveGeometryToDB(&pt, rowId) != OGRERR_FAILURE)
nGeometries++;
}
/* update number of geometries in VFK_DB_TABLE table */
UpdateVfkBlocks(nGeometries);
if (poReader->IsSpatial())
poReader->ExecuteSQL("COMMIT");
return bSkipInvalid ? 0 : nInvalid;
}
/*!
\brief Set geometry for linestrings
\param poLine VFK feature
\param oOGRLine line geometry
\param[in,out] bValid TRUE when feature's geometry is valid
\param[in,out] rowIdFeat list of row ids which forms linestring
\param[in,out] nGeometries number of features with valid geometry
*/
bool VFKDataBlockDB::SetGeometryLineString(VFKFeatureDB *poLine, OGRLineString *oOGRLine,
bool& bValid, const char *ftype,
std::vector<int>& rowIdFeat, int& nGeometries)
{
int npoints;
VFKReaderDB *poReader;
poReader = (VFKReaderDB*) m_poReader;
oOGRLine->setCoordinateDimension(2); /* force 2D */
/* check also VFK validity */
if (bValid) {
/* Feature types
- '3' - line (2 points)
- '4' - linestring (at least 2 points)
- '11' - curve (at least 2 points)
- '15' - circle (3 points)
- '15 r' - circle (center point & radius)
- '16' - arc (3 points)
*/
npoints = oOGRLine->getNumPoints();
if (EQUAL(ftype, "3") && npoints > 2) {
/* be less pedantic, just inform user about data
* inconsistency
bValid = FALSE;
*/
CPLDebug("OGR-VFK",
"Line (fid=" CPL_FRMT_GIB ") defined by more than two vertices",
poLine->GetFID());
}
else if (EQUAL(ftype, "11") && npoints < 2) {
bValid = FALSE;
CPLError(CE_Warning, CPLE_AppDefined,
"Curve (fid=" CPL_FRMT_GIB ") defined by less than two vertices",
poLine->GetFID());
}
else if (EQUAL(ftype, "15") && npoints != 3) {
bValid = FALSE;
CPLError(CE_Warning, CPLE_AppDefined,
"Circle (fid=" CPL_FRMT_GIB ") defined by invalid number of vertices (%d)",
poLine->GetFID(), oOGRLine->getNumPoints());
}
else if (strlen(ftype) > 2 && STARTS_WITH_CI(ftype, "15") && npoints != 1) {
bValid = FALSE;
CPLError(CE_Warning, CPLE_AppDefined,
"Circle (fid=" CPL_FRMT_GIB ") defined by invalid number of vertices (%d)",
poLine->GetFID(), oOGRLine->getNumPoints());
}
else if (EQUAL(ftype, "16") && npoints != 3) {
bValid = FALSE;
CPLError(CE_Warning, CPLE_AppDefined,
"Arc (fid=" CPL_FRMT_GIB ") defined by invalid number of vertices (%d)",
poLine->GetFID(), oOGRLine->getNumPoints());
}
}
/* set geometry (NULL for invalid features) */
if (bValid) {
if (!poLine->SetGeometry(oOGRLine, ftype)) {
bValid = FALSE;
}
}
else {
poLine->SetGeometry(NULL);
}
/* update fid column */
UpdateFID(poLine->GetFID(), rowIdFeat);
/* store also geometry in DB */
CPLAssert(0 != rowIdFeat.size());
if (bValid && poReader->IsSpatial() &&
SaveGeometryToDB(bValid ? poLine->GetGeometry() : NULL,
rowIdFeat[0]) != OGRERR_FAILURE)
nGeometries++;
rowIdFeat.clear();
oOGRLine->empty(); /* restore line */
return bValid;
}
/*!
\brief Load geometry (linestring SBP layer)
\return number of invalid features
*/
int VFKDataBlockDB::LoadGeometryLineStringSBP()
{
int nInvalid, nGeometries, rowId, iIdx;
CPLString szFType, szFTypeLine;
GUIntBig id, ipcb;
bool bValid;
std::vector<int> rowIdFeat;
CPLString osSQL;
VFKReaderDB *poReader;
VFKDataBlockDB *poDataBlockPoints;
VFKFeatureDB *poFeature, *poPoint, *poLine;
OGRLineString oOGRLine;
nInvalid = nGeometries = 0;
poReader = (VFKReaderDB*) m_poReader;
poLine = NULL;
poDataBlockPoints = (VFKDataBlockDB *) m_poReader->GetDataBlock("SOBR");
if (NULL == poDataBlockPoints) {
CPLError(CE_Failure, CPLE_FileIO,
"Data block %s not found.\n", m_pszName);
return nInvalid;
}
poDataBlockPoints->LoadGeometry();
if (LoadGeometryFromDB()) /* try to load geometry from DB */
return 0;
osSQL.Printf("UPDATE %s SET %s = -1", m_pszName, FID_COLUMN);
poReader->ExecuteSQL(osSQL.c_str());
bValid = TRUE;
iIdx = 0;
for (int i = 0; i < 2; i++) {
/* first collect linestrings related to HP, OB or DPM
then collect rest of linestrings */
if (i == 0)
osSQL.Printf("SELECT BP_ID,PORADOVE_CISLO_BODU,PARAMETRY_SPOJENI,_rowid_ FROM '%s' WHERE "
"HP_ID IS NOT NULL OR OB_ID IS NOT NULL OR DPM_ID IS NOT NULL "
"ORDER BY HP_ID,OB_ID,DPM_ID,PORADOVE_CISLO_BODU", m_pszName);
else
osSQL.Printf("SELECT BP_ID,PORADOVE_CISLO_BODU,PARAMETRY_SPOJENI,_rowid_ FROM '%s' WHERE "
"OB_ID IS NULL AND HP_ID IS NULL AND DPM_ID IS NULL "
"ORDER BY ID,PORADOVE_CISLO_BODU", m_pszName);
if (poReader->IsSpatial())
poReader->ExecuteSQL("BEGIN");
std::vector<VFKDbValue> record;
record.push_back(VFKDbValue(DT_BIGINT));
record.push_back(VFKDbValue(DT_BIGINT));
record.push_back(VFKDbValue(DT_TEXT));
record.push_back(VFKDbValue(DT_INT));
poReader->PrepareStatement(osSQL.c_str());
while(poReader->ExecuteSQL(record) == OGRERR_NONE) {
// read values
id = (GIntBig) record[0];
ipcb = (GIntBig) record[1];
szFType = (CPLString) record[2];
rowId = (int) record[3];
if (ipcb == 1) {
poFeature = (VFKFeatureDB *) GetFeatureByIndex(iIdx);
if( poFeature == NULL )
{
CPLError(CE_Failure, CPLE_AppDefined, "Cannot retrieve feature %d", iIdx);
break;
}
poFeature->SetRowId(rowId);
/* set geometry & reset */
if (poLine && !SetGeometryLineString(poLine, &oOGRLine,
bValid, szFTypeLine, rowIdFeat, nGeometries)) {
nInvalid++;
}
bValid = TRUE;
poLine = poFeature;
szFTypeLine = szFType;
iIdx++;
}
poPoint = (VFKFeatureDB *) poDataBlockPoints->GetFeature("ID", id);
if (poPoint) {
OGRPoint *pt = (OGRPoint *) poPoint->GetGeometry();
if (pt) {
oOGRLine.addPoint(pt);
}
else {
CPLDebug("OGR-VFK",
"Geometry (point ID = " CPL_FRMT_GUIB ") not valid", id);
bValid = FALSE;
}
}
else {
CPLDebug("OGR-VFK",
"Point ID = " CPL_FRMT_GUIB " not found (rowid = %d)",
id, rowId);
bValid = FALSE;
}
/* add vertex to the linestring */
rowIdFeat.push_back(rowId);
}
/* add last line */
if (poLine && !SetGeometryLineString(poLine, &oOGRLine,
bValid, szFType.c_str(), rowIdFeat, nGeometries)) {
nInvalid++;
}
poLine = NULL;
if (poReader->IsSpatial())
poReader->ExecuteSQL("COMMIT");
}
/* update number of geometries in VFK_DB_TABLE table */
UpdateVfkBlocks(nGeometries);
return nInvalid;
}
/*!
\brief Load geometry (linestring HP/DPM layer)
\return number of invalid features
*/
int VFKDataBlockDB::LoadGeometryLineStringHP()
{
int nInvalid, nGeometries;
int rowId;
GIntBig iFID;
CPLString osColumn, osSQL;
const char *vrColumn[2];
GUIntBig vrValue[2];
sqlite3_stmt *hStmt;
OGRGeometry *poOgrGeometry;
VFKReaderDB *poReader;
VFKDataBlockDB *poDataBlockLines;
VFKFeatureDB *poFeature, *poLine;
nInvalid = nGeometries = 0;
poReader = (VFKReaderDB*) m_poReader;
poDataBlockLines = (VFKDataBlockDB *) m_poReader->GetDataBlock("SBP");
if (NULL == poDataBlockLines) {
CPLError(CE_Failure, CPLE_FileIO,
"Data block %s not found.", m_pszName);
return nInvalid;
}
poDataBlockLines->LoadGeometry();
if (LoadGeometryFromDB()) /* try to load geometry from DB */
return 0;
osColumn.Printf("%s_ID", m_pszName);
vrColumn[0] = osColumn.c_str();
vrColumn[1] = "PORADOVE_CISLO_BODU";
vrValue[1] = 1; /* reduce to first segment */
osSQL.Printf("SELECT ID,%s,rowid FROM %s", FID_COLUMN, m_pszName);
/* TODO: handle points in DPM */
if (EQUAL(m_pszName, "DPM"))
osSQL += " WHERE SOURADNICE_X IS NULL";
if (poReader->IsSpatial())
poReader->ExecuteSQL("BEGIN");
std::vector<VFKDbValue> record;
record.push_back(VFKDbValue(DT_BIGINT));
record.push_back(VFKDbValue(DT_BIGINT));
record.push_back(VFKDbValue(DT_INT));
poReader->PrepareStatement(osSQL.c_str());
while(poReader->ExecuteSQL(record) == OGRERR_NONE) {
/* read values */
vrValue[0] = static_cast<GIntBig> (record[0]);
iFID = static_cast<GIntBig> (record[1]);
rowId = static_cast<int> (record[2]);
poFeature = (VFKFeatureDB *) GetFeatureByIndex(rowId - 1);
CPLAssert(NULL != poFeature && poFeature->GetFID() == iFID);
poLine = poDataBlockLines->GetFeature(vrColumn, vrValue, 2, TRUE);
if (!poLine) {
poOgrGeometry = NULL;
}
else {
poOgrGeometry = poLine->GetGeometry();
}
if (!poOgrGeometry || !poFeature->SetGeometry(poOgrGeometry)) {
CPLDebug("OGR-VFK", "VFKDataBlockDB::LoadGeometryLineStringHP(): name=%s fid=%ld "
"id=" CPL_FRMT_GUIB " -> %s geometry", m_pszName, iFID, vrValue[0],
poOgrGeometry ? "invalid" : "empty");
nInvalid++;
continue;
}
/* store also geometry in DB */
if (poReader->IsSpatial() &&
SaveGeometryToDB(poOgrGeometry, rowId) != OGRERR_FAILURE &&
poOgrGeometry)
nGeometries++;
}
/* update number of geometries in VFK_DB_TABLE table */
UpdateVfkBlocks(nGeometries);
if (poReader->IsSpatial())
poReader->ExecuteSQL("COMMIT");
return nInvalid;
}
/*!
\brief Load geometry (polygon BUD/PAR layers)
\return number of invalid features
*/
int VFKDataBlockDB::LoadGeometryPolygon()
{
int nInvalidNoLines, nInvalidNoRings, nGeometries, nBridges;
int rowId, nCount, nCountMax;
size_t nLines;
GIntBig iFID;
bool bIsPar, bNewRing, bFound;
CPLString osSQL;
const char *vrColumn[2];
GUIntBig vrValue[2];
GUIntBig id, idOb;
sqlite3_stmt *hStmt;
VFKReaderDB *poReader;
VFKDataBlockDB *poDataBlockLines1, *poDataBlockLines2;
VFKFeatureDB *poFeature;
VFKFeatureDBList poLineList;
/* first is to be considered as exterior */
PointListArray poRingList;
std::vector<OGRLinearRing *> poLinearRingList;
OGRPolygon ogrPolygon;
OGRLinearRing *poOgrRing;
nInvalidNoLines = nInvalidNoRings = nGeometries = 0;
poReader = (VFKReaderDB*) m_poReader;
if (EQUAL (m_pszName, "PAR")) {
poDataBlockLines1 = (VFKDataBlockDB *) m_poReader->GetDataBlock("HP");
poDataBlockLines2 = poDataBlockLines1;
bIsPar = TRUE;
}
else {
poDataBlockLines1 = (VFKDataBlockDB *) m_poReader->GetDataBlock("OB");
poDataBlockLines2 = (VFKDataBlockDB *) m_poReader->GetDataBlock("SBP");
bIsPar = FALSE;
}
if (NULL == poDataBlockLines1) {
CPLError(CE_Warning, CPLE_FileIO,
"Data block %s not found. Unable to build geometry for %s.",
bIsPar ? "HP" : "OB", m_pszName);
return -1;
}
if (NULL == poDataBlockLines2) {
CPLError(CE_Warning, CPLE_FileIO,
"Data block %s not found. Unable to build geometry for %s.",
"SBP", m_pszName);
return -1;
}
poDataBlockLines1->LoadGeometry();
poDataBlockLines2->LoadGeometry();
if (LoadGeometryFromDB()) /* try to load geometry from DB */
return 0;
if (bIsPar) {
vrColumn[0] = "PAR_ID_1";
vrColumn[1] = "PAR_ID_2";
}
else {
vrColumn[0] = "OB_ID";
vrColumn[1] = "PORADOVE_CISLO_BODU";
vrValue[1] = 1;
}
osSQL.Printf("SELECT ID,%s,rowid FROM %s", FID_COLUMN, m_pszName);
if (poReader->IsSpatial())
poReader->ExecuteSQL("BEGIN");
std::vector<VFKDbValue> record;
record.push_back(VFKDbValue(DT_BIGINT));
record.push_back(VFKDbValue(DT_BIGINT));
record.push_back(VFKDbValue(DT_INT));
poReader->PrepareStatement(osSQL.c_str());
while(poReader->ExecuteSQL(record) == OGRERR_NONE) {
nBridges = 0;
/* read values */
id = static_cast<GIntBig> (record[0]);
iFID = static_cast<GIntBig> (record[1]);
rowId = static_cast<int> (record[2]);
poFeature = (VFKFeatureDB *) GetFeatureByIndex(rowId - 1);
CPLAssert(NULL != poFeature && poFeature->GetFID() == iFID);
if (bIsPar) {
vrValue[0] = vrValue[1] = id;
poLineList = poDataBlockLines1->GetFeatures(vrColumn, vrValue, 2);
}
else {
VFKFeatureDB *poLineSbp;
std::vector<VFKFeatureDB *> poLineListOb;
sqlite3_stmt *hStmtOb;
osSQL.Printf("SELECT ID FROM %s WHERE BUD_ID = " CPL_FRMT_GUIB,
poDataBlockLines1->GetName(), id);
if (poReader->IsSpatial()) {
CPLString osColumn;
osColumn.Printf(" AND %s IS NULL", GEOM_COLUMN);
osSQL += osColumn;
}
std::vector<VFKDbValue> record1;
record1.push_back(VFKDbValue(DT_BIGINT));
poReader->PrepareStatement(osSQL.c_str(), 1);
while(poReader->ExecuteSQL(record, 1) == OGRERR_NONE) {
idOb = static_cast<GIntBig> (record[0]);
vrValue[0] = idOb;
poLineSbp = poDataBlockLines2->GetFeature(vrColumn, vrValue, 2);
if (poLineSbp)
poLineList.push_back(poLineSbp);
}
}
nLines = poLineList.size();
if (nLines < 1) {
CPLDebug("OGR-VFK",
"%s: unable to collect rings for polygon fid = %ld (no lines)",
m_pszName, iFID);
nInvalidNoLines++;
continue;
}
/* clear */
ogrPolygon.empty();
poRingList.clear();
/* collect rings from lines */
bFound = FALSE;
nCount = 0;
nCountMax = static_cast<int>(nLines) * 2;
while (poLineList.size() > 0 && nCount < nCountMax) {
bNewRing = !bFound ? TRUE : FALSE;
bFound = FALSE;
int i = 1;
for (VFKFeatureDBList::iterator iHp = poLineList.begin(), eHp = poLineList.end();
iHp != eHp; ++iHp, ++i) {
const OGRLineString *pLine = (OGRLineString *) (*iHp)->GetGeometry();
if (pLine && AppendLineToRing(&poRingList, pLine, bNewRing)) {
bFound = TRUE;
poLineList.erase(iHp);
break;
}
}
nCount++;
}
CPLDebug("OGR-VFK", "%s: fid = %ld nlines = %d -> nrings = %d", m_pszName,
iFID, (int)nLines, (int)poRingList.size());
if (poLineList.size() > 0) {
CPLDebug("OGR-VFK",
"%s: unable to collect rings for polygon fid = %ld",
m_pszName, iFID);
nInvalidNoRings++;
continue;
}
/* build rings */
poLinearRingList.clear();
int i = 1;
for (PointListArray::const_iterator iRing = poRingList.begin(), eRing = poRingList.end();
iRing != eRing; ++iRing) {
OGRPoint *poPoint;
PointList *poList = *iRing;
poLinearRingList.push_back(new OGRLinearRing());
poOgrRing = poLinearRingList.back();
CPLAssert(NULL != poOgrRing);
for (PointList::iterator iPoint = poList->begin(), ePoint = poList->end();
iPoint != ePoint; ++iPoint) {
poPoint = &(*iPoint);
poOgrRing->addPoint(poPoint);
}
i++;
}
/* find exterior ring */
if (poLinearRingList.size() > 1) {
double dArea, dMaxArea;
std::vector<OGRLinearRing *>::iterator exteriorRing;
exteriorRing = poLinearRingList.begin();
dMaxArea = -1.;
for (std::vector<OGRLinearRing *>::iterator iRing = poLinearRingList.begin(),
eRing = poLinearRingList.end(); iRing != eRing; ++iRing) {
poOgrRing = *iRing;
if (!IsRingClosed(poOgrRing))
continue; /* skip unclosed rings */
dArea = poOgrRing->get_Area();
if (dArea > dMaxArea) {
dMaxArea = dArea;
exteriorRing = iRing;
}
}
if (exteriorRing != poLinearRingList.begin()) {
std::swap(*poLinearRingList.begin(), *exteriorRing);
}
}
/* build polygon from rings */
for (std::vector<OGRLinearRing *>::iterator iRing = poLinearRingList.begin(),
eRing = poLinearRingList.end(); iRing != eRing; ++iRing) {
poOgrRing = *iRing;
/* check if ring is closed */
if (IsRingClosed(poOgrRing)) {
ogrPolygon.addRing(poOgrRing);
}
else {
if (poOgrRing->getNumPoints() == 2) {
CPLDebug("OGR-VFK", "%s: Polygon (fid = %ld) bridge removed",
m_pszName, iFID);
nBridges++;
}
else {
CPLDebug("OGR-VFK",
"%s: Polygon (fid = %ld) unclosed ring skipped",
m_pszName, iFID);
}
}
delete poOgrRing;
*iRing = NULL;
}
/* set polygon */
ogrPolygon.setCoordinateDimension(2); /* force 2D */
if (ogrPolygon.getNumInteriorRings() + nBridges != (int) poLinearRingList.size() - 1 ||
!poFeature->SetGeometry(&ogrPolygon)) {
nInvalidNoRings++;
continue;
}
/* store also geometry in DB */
if (poReader->IsSpatial() &&
SaveGeometryToDB(&ogrPolygon, rowId) != OGRERR_FAILURE)
nGeometries++;
}
/* free ring list */
for (PointListArray::iterator iRing = poRingList.begin(), eRing = poRingList.end();
iRing != eRing; ++iRing) {
delete (*iRing);
*iRing = NULL;
}
CPLDebug("OGR-VFK", "%s: nolines = %d norings = %d",
m_pszName, nInvalidNoLines, nInvalidNoRings);
/* update number of geometries in VFK_DB_TABLE table */
UpdateVfkBlocks(nGeometries);
if (poReader->IsSpatial())
poReader->ExecuteSQL("COMMIT");
return nInvalidNoLines + nInvalidNoRings;
}
/*!
\brief Get feature by FID
Modifies next feature id.
\param nFID feature id
\return pointer to feature definition or NULL on failure (not found)
*/
IVFKFeature *VFKDataBlockDB::GetFeature(GIntBig nFID)
{
int rowId;
CPLString osSQL;
VFKReaderDB *poReader;
if (m_nFeatureCount < 0) {
m_poReader->ReadDataRecords(this);
}
if (nFID < 1 || nFID > m_nFeatureCount)
return NULL;
if (m_bGeometryPerBlock && !m_bGeometry) {
LoadGeometry();
}
poReader = (VFKReaderDB*) m_poReader;
osSQL.Printf("SELECT rowid FROM %s WHERE %s = " CPL_FRMT_GIB,
m_pszName, FID_COLUMN, nFID);
if (EQUAL(m_pszName, "SBP")) {
osSQL += " AND PORADOVE_CISLO_BODU = 1";
}
if (poReader->ExecuteSQL(osSQL.c_str(), rowId) != OGRERR_NONE) {
rowId = -1; // TODO: solve
}
return GetFeatureByIndex(rowId - 1);
}
/*!
\brief Get first found feature based on it's property
\param column property name
\param value property value
\param bGeom True to check also geometry != NULL
\return pointer to feature definition or NULL on failure (not found)
*/
VFKFeatureDB *VFKDataBlockDB::GetFeature(const char *column, GUIntBig value,
bool bGeom)
{
int idx;
CPLString osSQL;
VFKReaderDB *poReader;
poReader = (VFKReaderDB*) m_poReader;
osSQL.Printf("SELECT %s from %s WHERE %s = " CPL_FRMT_GUIB,
FID_COLUMN, m_pszName, column, value);
if (bGeom) {
CPLString osColumn;
osColumn.Printf(" AND %s IS NOT NULL", GEOM_COLUMN);
osSQL += osColumn;
}
if (poReader->ExecuteSQL(osSQL.c_str(), idx) != OGRERR_NONE)
return NULL;
idx -= 1;
if (idx < 0 || idx >= m_nFeatureCount) // ? assert
return NULL;
return (VFKFeatureDB *) GetFeatureByIndex(idx);
}
/*!
\brief Get first found feature based on it's properties (AND)
\param column array of property names
\param value array of property values
\param num number of array items
\param bGeom True to check also geometry != NULL
\return pointer to feature definition or NULL on failure (not found)
*/
VFKFeatureDB *VFKDataBlockDB::GetFeature(const char **column, GUIntBig *value, int num,
bool bGeom)
{
int idx;
CPLString osSQL, osItem;
VFKReaderDB *poReader;
poReader = (VFKReaderDB*) m_poReader;
osSQL.Printf("SELECT %s FROM %s WHERE ", FID_COLUMN, m_pszName);
for (int i = 0; i < num; i++) {
if (i > 0)
osItem.Printf(" AND %s = " CPL_FRMT_GUIB, column[i], value[i]);
else
osItem.Printf("%s = " CPL_FRMT_GUIB, column[i], value[i]);
osSQL += osItem;
}
if (bGeom) {
osItem.Printf(" AND %s IS NOT NULL", GEOM_COLUMN);
osSQL += osItem;
}
if (poReader->ExecuteSQL(osSQL.c_str(), idx) != OGRERR_NONE)
return NULL;
idx -= 1; /* rowid starts at 1 */
if (idx < 0 || idx >= m_nFeatureCount) // ? assert
return NULL;
return (VFKFeatureDB *) GetFeatureByIndex(idx);
}
/*!
\brief Get features based on properties
\param column array of property names
\param value array of property values
\param num number of array items
\return list of features
*/
VFKFeatureDBList VFKDataBlockDB::GetFeatures(const char **column, GUIntBig *value, int num)
{
int iRowId;
CPLString osSQL, osItem;
VFKReaderDB *poReader;
VFKFeatureDBList fList;
poReader = (VFKReaderDB*) m_poReader;
osSQL.Printf("SELECT rowid from %s WHERE ", m_pszName);
for (int i = 0; i < num; i++) {
if (i > 0)
osItem.Printf(" OR %s = " CPL_FRMT_GUIB, column[i], value[i]);
else
osItem.Printf("%s = " CPL_FRMT_GUIB, column[i], value[i]);
osSQL += osItem;
}
osSQL += " ORDER BY ";
osSQL += FID_COLUMN;
std::vector<VFKDbValue> record;
record.push_back(VFKDbValue(DT_INT));
poReader->PrepareStatement(osSQL.c_str());
while (poReader->ExecuteSQL(record) == OGRERR_NONE) {
iRowId = static_cast<int> (record[0]);
fList.push_back((VFKFeatureDB *)GetFeatureByIndex(iRowId - 1));
}
return fList;
}
/*!
\brief Save geometry to DB (as WKB)
TODO: solve
\param poGeom pointer to OGRGeometry to be saved
\param iRowId row id to update
\return OGRERR_NONE on success otherwise OGRERR_FAILURE
*/
OGRErr VFKDataBlockDB::SaveGeometryToDB(const OGRGeometry *poGeom, int iRowId)
{
int rc, nWKBLen;
GByte *pabyWKB;
CPLString osSQL;
VFKReaderDB *poReader;
poReader = (VFKReaderDB*) m_poReader;
if (poGeom) {
nWKBLen = poGeom->WkbSize();
pabyWKB = (GByte *) CPLMalloc(nWKBLen + 1);
poGeom->exportToWkb(wkbNDR, pabyWKB);
osSQL.Printf("UPDATE %s SET %s = ? WHERE rowid = %d",
m_pszName, GEOM_COLUMN, iRowId);
/* TODO: solve
hStmt = poReader->PrepareStatement(osSQL.c_str());
rc = sqlite3_bind_blob(hStmt, 1, pabyWKB, nWKBLen, CPLFree);
if (rc != SQLITE_OK) {
sqlite3_finalize(hStmt);
CPLError(CE_Failure, CPLE_AppDefined,
"Storing geometry in DB failed");
return OGRERR_FAILURE;
}
*/
}
else { /* invalid */
/*
osSQL.Printf("UPDATE %s SET %s = NULL WHERE rowid = %d",
m_pszName, GEOM_COLUMN, iRowId);
poReader->PrepareStatement(osSQL.c_str());
*/
}
return 0; // poReader->ExecuteSQL(hStmt); /* calls sqlite3_finalize() */
}
/*!
\brief Load geometry from DB
\return TRUE geometry successfully loaded otherwise FALSE
*/
bool VFKDataBlockDB::LoadGeometryFromDB()
{
int nInvalid, nGeometries, nGeometriesCount, nBytes, rowId;
#ifdef DEBUG
GIntBig iFID;
#endif
bool bSkipInvalid;
CPLString osSQL;
OGRGeometry *poGeometry;
VFKFeatureDB *poFeature;
VFKReaderDB *poReader;
poReader = (VFKReaderDB*) m_poReader;
if (!poReader->IsSpatial()) /* check if DB is spatial */
return FALSE;
osSQL.Printf("SELECT num_geometries FROM %s WHERE table_name = '%s'",
VFK_DB_TABLE, m_pszName);
if (poReader->ExecuteSQL(osSQL.c_str(), nGeometries) != OGRERR_NONE)
return FALSE;
if (nGeometries < 1)
return FALSE;
bSkipInvalid = EQUAL(m_pszName, "OB") || EQUAL(m_pszName, "OP") || EQUAL(m_pszName, "OBBP");
/* load geometry from DB */
nInvalid = nGeometriesCount = 0;
osSQL.Printf("SELECT %s,rowid,%s FROM %s ",
GEOM_COLUMN, FID_COLUMN, m_pszName);
if (EQUAL(m_pszName, "SBP"))
osSQL += "WHERE PORADOVE_CISLO_BODU = 1 ";
osSQL += "ORDER BY ";
osSQL += FID_COLUMN;
rowId = 0;
std::vector<VFKDbValue> record;
record.push_back(VFKDbValue(DT_INT)); // TODO: blob
record.push_back(VFKDbValue(DT_INT));
record.push_back(VFKDbValue(DT_BIGINT));
poReader->PrepareStatement(osSQL.c_str());
while(poReader->ExecuteSQL(record) == OGRERR_NONE) {
rowId++; // =sqlite3_column_int(hStmt, 1);
#ifdef DEBUG
iFID = static_cast<GIntBig> (record[2]);
#endif
poFeature = (VFKFeatureDB *) GetFeatureByIndex(rowId - 1);
CPLAssert(NULL != poFeature && poFeature->GetFID() == iFID);
// read geometry from DB
nBytes = 0; // TODO: sqlite3_column_byte(hStmt, 0);
/* TODO: solve
if (nBytes > 0 &&
OGRGeometryFactory::createFromWkb((GByte*) sqlite3_column_blob(hStmt, 0),
NULL, &poGeometry, nBytes) == OGRERR_NONE) {
nGeometriesCount++;
if (!poFeature->SetGeometry(poGeometry)) {
nInvalid++;
}
delete poGeometry;
}
else {
nInvalid++;
}
*/
}
CPLDebug("OGR-VFK", "%s: %d geometries loaded from DB",
m_pszName, nGeometriesCount);
if (nGeometriesCount != nGeometries) {
CPLError(CE_Warning, CPLE_AppDefined,
"%s: %d geometries loaded (should be %d)",
m_pszName, nGeometriesCount, nGeometries);
}
if (nInvalid > 0 && !bSkipInvalid) {
CPLError(CE_Warning, CPLE_AppDefined,
"%s: %d features with invalid or empty geometry",