public MappingTreeStructure convert(WebServiceRequestStructure req, boolean isTarget, CallbackResult callback) {
IntegrationServer server = IntegrationServer.getInstance();
TreeMapperInfoProvider infoProvider = server.getServerCall(TreeMapperInfoProvider.class);
DefaultMappingStructureCallback cb = new DefaultMappingStructureCallback(callback);
WebServiceOperationInfo opInfo = req.getOpInfo();
WebServiceOperationIdentifier opId = new WebServiceOperationIdentifier(
opInfo.getProperty(WebServiceOperationInfo.OPERATION_NAME),
opInfo.getProperty(WebServiceOperationInfo.INPUT_NAME),
opInfo.getProperty(WebServiceOperationInfo.OUTPUT_NAME)
);
infoProvider.getJtrForWS(