MastersListCommand.java 文件源码

@Override
protected void execute() {
    ClusterService service = get(ClusterService.class);
    MastershipService mastershipService = get(MastershipService.class);
    List<ControllerNode> nodes = newArrayList(service.getNodes());
    Collections.sort(nodes, Comparators.NODE_COMPARATOR);

    if (outputJson()) {
        print("%s", json(service, mastershipService, nodes));
    } else {
        for (ControllerNode node : nodes) {
            List<DeviceId> ids = Lists.newArrayList(mastershipService.getDevicesOf(node.id()));
            Collections.sort(ids, Comparators.ELEMENT_ID_COMPARATOR);
            print("%s: %d devices", node.id(), ids.size());
            for (DeviceId deviceId : ids) {
                print("  %s", deviceId);
            }
        }
    }
}