void OGRESRIJSONReader::ReadLayers( OGRGeoJSONDataSource* poDS,
GeoJSONSourceType eSourceType )
{
CPLAssert( nullptr == poLayer_ );
if( nullptr == poGJObject_ )
{
CPLDebug( "ESRIJSON",
"Missing parsed ESRIJSON data. Forgot to call Parse()?" );
return;
}
OGRSpatialReference* poSRS = OGRESRIJSONReadSpatialReference( poGJObject_ );
const char* pszName = "ESRIJSON";
if( eSourceType == eGeoJSONSourceFile )
{
pszName = poDS->GetDescription();
if( STARTS_WITH_CI(pszName, "ESRIJSON:") )
pszName += strlen("ESRIJSON:");
pszName = CPLGetBasename(pszName);
}
auto eGeomType = OGRESRIJSONGetGeometryType(poGJObject_);
if( eGeomType == wkbNone && poSRS != nullptr )
{
eGeomType = wkbUnknown;
}
poLayer_ = new OGRGeoJSONLayer( pszName, poSRS,
eGeomType,
poDS, nullptr );
if( poSRS != nullptr )
poSRS->Release();
if( !GenerateLayerDefn() )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Layer schema generation failed." );
delete poLayer_;
return;
}
OGRGeoJSONLayer *poThisLayer = ReadFeatureCollection( poGJObject_ );
if( poThisLayer == nullptr )
{
delete poLayer_;
return;
}
CPLErrorReset();
poLayer_->DetectGeometryType();
poDS->AddLayer(poLayer_);
}
OGRGeoJSONLayer* OGRESRIJSONReader::ReadLayer( const char* pszName,
OGRGeoJSONDataSource* poDS )
{
CPLAssert( NULL == poLayer_ );
if( NULL == poGJObject_ )
{
CPLDebug( "ESRIJSON",
"Missing parset ESRIJSON data. Forgot to call Parse()?" );
return NULL;
}
poLayer_ = new OGRGeoJSONLayer( pszName, NULL,
OGRESRIJSONGetGeometryType(poGJObject_),
poDS );
if( !GenerateLayerDefn() )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Layer schema generation failed." );
delete poLayer_;
return NULL;
}
OGRGeoJSONLayer* poThisLayer = NULL;
poThisLayer = ReadFeatureCollection( poGJObject_ );
if (poThisLayer == NULL)
{
delete poLayer_;
return NULL;
}
OGRSpatialReference* poSRS = NULL;
poSRS = OGRESRIJSONReadSpatialReference( poGJObject_ );
if (poSRS != NULL )
{
poLayer_->SetSpatialRef( poSRS );
delete poSRS;
}
return poLayer_;
}
void OGRESRIJSONReader::ReadLayers( OGRGeoJSONDataSource* poDS )
{
CPLAssert( NULL == poLayer_ );
if( NULL == poGJObject_ )
{
CPLDebug( "ESRIJSON",
"Missing parset ESRIJSON data. Forgot to call Parse()?" );
return;
}
OGRSpatialReference* poSRS = NULL;
poSRS = OGRESRIJSONReadSpatialReference( poGJObject_ );
poLayer_ = new OGRGeoJSONLayer( OGRGeoJSONLayer::DefaultName, poSRS,
OGRESRIJSONGetGeometryType(poGJObject_),
poDS );
if( poSRS != NULL )
poSRS->Release();
if( !GenerateLayerDefn() )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Layer schema generation failed." );
delete poLayer_;
return;
}
OGRGeoJSONLayer* poThisLayer = NULL;
poThisLayer = ReadFeatureCollection( poGJObject_ );
if (poThisLayer == NULL)
{
delete poLayer_;
return;
}
CPLErrorReset();
poDS->AddLayer(poLayer_);
}
OGRGeoJSONLayer* OGRGeoJSONReader::ReadLayer( const char* pszName,
OGRGeoJSONDataSource* poDS )
{
CPLAssert( NULL == poLayer_ );
if( NULL == poGJObject_ )
{
CPLDebug( "GeoJSON",
"Missing parset GeoJSON data. Forgot to call Parse()?" );
return NULL;
}
poLayer_ = new OGRGeoJSONLayer( pszName, NULL,
OGRGeoJSONLayer::DefaultGeometryType,
NULL, poDS );
if( !GenerateLayerDefn() )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Layer schema generation failed." );
delete poLayer_;
return NULL;
}
/* -------------------------------------------------------------------- */
/* Translate single geometry-only Feature object. */
/* -------------------------------------------------------------------- */
GeoJSONObject::Type objType = OGRGeoJSONGetType( poGJObject_ );
if( GeoJSONObject::ePoint == objType
|| GeoJSONObject::eMultiPoint == objType
|| GeoJSONObject::eLineString == objType
|| GeoJSONObject::eMultiLineString == objType
|| GeoJSONObject::ePolygon == objType
|| GeoJSONObject::eMultiPolygon == objType
|| GeoJSONObject::eGeometryCollection == objType )
{
OGRGeometry* poGeometry = NULL;
poGeometry = ReadGeometry( poGJObject_ );
if( !AddFeature( poGeometry ) )
{
CPLDebug( "GeoJSON",
"Translation of single geometry failed." );
delete poLayer_;
return NULL;
}
}
/* -------------------------------------------------------------------- */
/* Translate single but complete Feature object. */
/* -------------------------------------------------------------------- */
else if( GeoJSONObject::eFeature == objType )
{
OGRFeature* poFeature = NULL;
poFeature = ReadFeature( poGJObject_ );
if( !AddFeature( poFeature ) )
{
CPLDebug( "GeoJSON",
"Translation of single feature failed." );
delete poLayer_;
return NULL;
}
}
/* -------------------------------------------------------------------- */
/* Translate multi-feature FeatureCollection object. */
/* -------------------------------------------------------------------- */
else if( GeoJSONObject::eFeatureCollection == objType )
{
OGRGeoJSONLayer* poThisLayer = NULL;
poThisLayer = ReadFeatureCollection( poGJObject_ );
CPLAssert( poLayer_ == poThisLayer );
}
else
{
CPLError( CE_Failure, CPLE_AppDefined,
"Unrecognized GeoJSON structure." );
delete poLayer_;
return NULL;
}
OGRSpatialReference* poSRS = NULL;
poSRS = OGRGeoJSONReadSpatialReference( poGJObject_ );
if (poSRS == NULL ) {
// If there is none defined, we use 4326
poSRS = new OGRSpatialReference();
if( OGRERR_NONE != poSRS->importFromEPSG( 4326 ) )
{
delete poSRS;
poSRS = NULL;
}
poLayer_->SetSpatialRef( poSRS );
delete poSRS;
}
else {
poLayer_->SetSpatialRef( poSRS );
delete poSRS;
}
// TODO: FeatureCollection
return poLayer_;
}