private void handleCommands(List<CommandOperation> ops, ConfigOverlay overlay) throws IOException { for (CommandOperation op : ops) { switch (op.name) { case SET_PROPERTY: overlay = applySetProp(op, overlay); break; case UNSET_PROPERTY: overlay = applyUnset(op, overlay); break; case SET_USER_PROPERTY: overlay = applySetUserProp(op, overlay); break; case UNSET_USER_PROPERTY: overlay = applyUnsetUserProp(op, overlay); break; case UPDATE_REQHANDLER: case CREATE_REQHANDLER: overlay = applyRequestHandler(op, overlay); break; case DELETE_REQHANDLER: overlay = applyDeleteHandler(op, overlay); break; } } List errs = CommandOperation.captureErrors(ops); if (!errs.isEmpty()) { resp.add(CommandOperation.ERR_MSGS, errs); return; } SolrResourceLoader loader = req.getCore().getResourceLoader(); if (loader instanceof ZkSolrResourceLoader) { ZkController.persistConfigResourceToZooKeeper( loader, overlay.getZnodeVersion(), ConfigOverlay.RESOURCE_NAME, overlay.toByteArray(), true); } else { SolrResourceLoader.persistConfLocally( loader, ConfigOverlay.RESOURCE_NAME, overlay.toByteArray()); req.getCore().getCoreDescriptor().getCoreContainer().reload(req.getCore().getName()); } }