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[Backport release-3_18][Server] Speed up WMS GetCapabilities by remov…

…ing featureCount

Backport 803848a from #42409
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elpaso authored and nyalldawson committed Mar 30, 2021
1 parent 70eac1c commit 66c8ec6cd3b5fde95002d73c31263c65075fccf0
Showing with 17 additions and 21 deletions.
  1. +17 −21 src/server/services/wms/qgswmsgetcapabilities.cpp
@@ -1076,32 +1076,28 @@ namespace QgsWms

//Ex_GeographicBoundingBox
QgsRectangle extent = l->extent(); // layer extent by default
if ( l->type() == QgsMapLayerType::VectorLayer )
if ( extent.isEmpty() )
{
QgsVectorLayer *vl = qobject_cast<QgsVectorLayer *>( l );
if ( vl && vl->featureCount() == 0 )
// if the extent is empty (not only Null), use the wms extent
// defined in the project...
extent = QgsServerProjectUtils::wmsExtent( *project );
if ( extent.isNull() )
{
// if there's no feature, use the wms extent defined in the
// project...
extent = QgsServerProjectUtils::wmsExtent( *project );
if ( extent.isNull() )
// or the CRS extent otherwise
extent = l->crs().bounds();
}
else if ( l->crs() != project->crs() )
{
// If CRS is different transform it to layer's CRS
try
{
// or the CRS extent otherwise
extent = vl->crs().bounds();
QgsCoordinateTransform ct( project->crs(), l->crs(), project->transformContext() );
extent = ct.transform( extent );
}
// If CRS is different transform it to layer's CRS
else if ( vl->crs() != project->crs() )
catch ( QgsCsException &cse )
{
try
{
QgsCoordinateTransform ct( project->crs(), vl->crs(), project->transformContext() );
extent = ct.transform( extent );
}
catch ( QgsCsException &cse )
{
QgsMessageLog::logMessage( QStringLiteral( "Error transforming extent for layer %1: %2" ).arg( vl->name() ).arg( cse.what() ), QStringLiteral( "Server" ), Qgis::MessageLevel::Warning );
continue;
}
QgsMessageLog::logMessage( QStringLiteral( "Error transforming extent for layer %1: %2" ).arg( l->name() ).arg( cse.what() ), QStringLiteral( "Server" ), Qgis::MessageLevel::Warning );
continue;
}
}
}

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