~MyOGRHandler() {
m_layer_polygon->CommitTransaction();
m_layer_linestring->CommitTransaction();
m_layer_point->CommitTransaction();
OGRDataSource::DestroyDataSource(m_data_source);
OGRCleanupAll();
}
void after_nodes() {
m_layer_point->CommitTransaction();
}
OGRLayer *OGRDataSource::CopyLayer( OGRLayer *poSrcLayer,
const char *pszNewName,
char **papszOptions )
{
OGRFeatureDefn *poSrcDefn = poSrcLayer->GetLayerDefn();
OGRLayer *poDstLayer = NULL;
/* -------------------------------------------------------------------- */
/* Create the layer. */
/* -------------------------------------------------------------------- */
if( !TestCapability( ODsCCreateLayer ) )
{
CPLError( CE_Failure, CPLE_NotSupported,
"This datasource does not support creation of layers." );
return NULL;
}
CPLErrorReset();
poDstLayer = CreateLayer( pszNewName, poSrcLayer->GetSpatialRef(),
poSrcDefn->GetGeomType(), papszOptions );
if( poDstLayer == NULL )
return NULL;
/* -------------------------------------------------------------------- */
/* Add fields. Default to copy all field. */
/* If only a subset of all fields requested, then output only */
/* the selected fields, and in the order that they were */
/* selected. */
/* -------------------------------------------------------------------- */
int iField;
for( iField = 0; iField < poSrcDefn->GetFieldCount(); iField++ )
poDstLayer->CreateField( poSrcDefn->GetFieldDefn(iField) );
/* -------------------------------------------------------------------- */
/* Check if the destination layer supports transactions and set a */
/* default number of features in a single transaction. */
/* -------------------------------------------------------------------- */
int nGroupTransactions = 0;
if( poDstLayer->TestCapability( OLCTransactions ) )
nGroupTransactions = 128;
/* -------------------------------------------------------------------- */
/* Transfer features. */
/* -------------------------------------------------------------------- */
OGRFeature *poFeature;
poSrcLayer->ResetReading();
if( nGroupTransactions <= 0 )
{
while( TRUE )
{
OGRFeature *poDstFeature = NULL;
poFeature = poSrcLayer->GetNextFeature();
if( poFeature == NULL )
break;
CPLErrorReset();
poDstFeature = OGRFeature::CreateFeature( poDstLayer->GetLayerDefn() );
if( poDstFeature->SetFrom( poFeature, TRUE ) != OGRERR_NONE )
{
delete poFeature;
CPLError( CE_Failure, CPLE_AppDefined,
"Unable to translate feature %ld from layer %s.\n",
poFeature->GetFID(), poSrcDefn->GetName() );
return poDstLayer;
}
poDstFeature->SetFID( poFeature->GetFID() );
OGRFeature::DestroyFeature( poFeature );
CPLErrorReset();
if( poDstLayer->CreateFeature( poDstFeature ) != OGRERR_NONE )
{
OGRFeature::DestroyFeature( poDstFeature );
return poDstLayer;
}
OGRFeature::DestroyFeature( poDstFeature );
}
}
else
{
int i, bStopTransfer = FALSE, bStopTransaction = FALSE;
int nFeatCount = 0; // Number of features in the temporary array
int nFeaturesToAdd = 0;
while( !bStopTransfer )
{
OGRFeature **papoDstFeature =
(OGRFeature **)CPLCalloc(sizeof(OGRFeature *), nGroupTransactions);
/* -------------------------------------------------------------------- */
/* Fill the array with features */
/* -------------------------------------------------------------------- */
for( nFeatCount = 0; nFeatCount < nGroupTransactions; nFeatCount++ )
{
poFeature = poSrcLayer->GetNextFeature();
if( poFeature == NULL )
{
bStopTransfer = 1;
break;
}
CPLErrorReset();
papoDstFeature[nFeatCount] =
OGRFeature::CreateFeature( poDstLayer->GetLayerDefn() );
if( papoDstFeature[nFeatCount]->SetFrom( poFeature, TRUE ) != OGRERR_NONE )
{
OGRFeature::DestroyFeature( poFeature );
CPLError( CE_Failure, CPLE_AppDefined,
"Unable to translate feature %ld from layer %s.\n",
poFeature->GetFID(), poSrcDefn->GetName() );
bStopTransfer = TRUE;
break;
}
papoDstFeature[nFeatCount]->SetFID( poFeature->GetFID() );
OGRFeature::DestroyFeature( poFeature );
}
nFeaturesToAdd = nFeatCount;
CPLErrorReset();
bStopTransaction = FALSE;
while( !bStopTransaction )
{
bStopTransaction = TRUE;
poDstLayer->StartTransaction();
for( i = 0; i < nFeaturesToAdd; i++ )
{
if( poDstLayer->CreateFeature( papoDstFeature[i] ) != OGRERR_NONE )
{
nFeaturesToAdd = i;
bStopTransfer = TRUE;
bStopTransaction = FALSE;
}
}
if( bStopTransaction )
poDstLayer->CommitTransaction();
else
poDstLayer->RollbackTransaction();
}
for( i = 0; i < nFeatCount; i++ )
OGRFeature::DestroyFeature( papoDstFeature[i] );
}
}
return poDstLayer;
}
