private void removeFromHistory()

in modeler/cayenne-modeler/src/main/java/org/apache/cayenne/modeler/ProjectController.java [457:503]
43 lines of code
26 McCabe index (conditional complexity)

    private void removeFromHistory(EventObject e) {

        int count = controllerStateHistory.size();
        List<ControllerState> removeList = new ArrayList<>();

        for (int i = 0; i < count; i++) {
            ControllerState cs = controllerStateHistory.get(i);
            if (cs == null || cs.event == null) {
                continue;
            }
            EventObject csEvent = cs.event;

            if (e instanceof EntityEvent && csEvent instanceof EntityDisplayEvent) {
                if (((EntityEvent) e).getEntity() == ((EntityDisplayEvent) csEvent).getEntity()) {
                    removeList.add(cs);
                }
            } else if (e instanceof EmbeddableEvent && csEvent instanceof EmbeddableDisplayEvent) {
                if (((EmbeddableEvent) e).getEmbeddable() == ((EmbeddableDisplayEvent) csEvent).getEmbeddable()) {
                    removeList.add(cs);
                }
            } else if (e instanceof ProcedureEvent && csEvent instanceof ProcedureDisplayEvent) {
                if (((ProcedureEvent) e).getProcedure() == ((ProcedureDisplayEvent) csEvent).getProcedure()) {
                    removeList.add(cs);
                }
            } else if (e instanceof QueryEvent && csEvent instanceof QueryDisplayEvent) {
                if (((QueryEvent) e).getQuery() == ((QueryDisplayEvent) csEvent).getQuery()) {
                    removeList.add(cs);
                }
            } else if (e instanceof DataMapEvent && csEvent instanceof DataMapDisplayEvent) {
                if (((DataMapEvent) e).getDataMap() == ((DataMapDisplayEvent) csEvent).getDataMap()) {
                    removeList.add(cs);
                }
            } else if (e instanceof DataNodeEvent && csEvent instanceof DataNodeDisplayEvent) {
                if (((DataNodeEvent) e).getDataNode() == ((DataNodeDisplayEvent) csEvent).getDataNode()) {
                    removeList.add(cs);
                }
            } else if (e instanceof DomainEvent && csEvent instanceof DomainDisplayEvent) {
                if (((DomainEvent) e).getDomain() == ((DomainDisplayEvent) csEvent).getDomain()) {
                    removeList.add(cs);
                }
            }
        }

        for (ControllerState o : removeList) {
            controllerStateHistory.remove(o);
        }
    }