Update attributes for an existing mount point.
| 32 | * Update attributes for an existing mount point. |
| 33 | */ |
| 34 | @ThreadSafe |
| 35 | @PublicApi |
| 36 | public final class UfsCommand extends AbstractFsAdminCommand { |
| 37 | private static final Option MODE_OPTION = |
| 38 | Option.builder() |
| 39 | .longOpt("mode") |
| 40 | .required(false) |
| 41 | .hasArg(true) |
| 42 | .desc("Set maintenance mode for a ufs path under one or more Alluxio mount points.") |
| 43 | .build(); |
| 44 | |
| 45 | /** |
| 46 | * @param context fsadmin command context |
| 47 | * @param alluxioConf Alluxio configuration |
| 48 | */ |
| 49 | public UfsCommand(Context context, AlluxioConfiguration alluxioConf) { |
| 50 | super(context); |
| 51 | } |
| 52 | |
| 53 | @Override |
| 54 | public String getCommandName() { |
| 55 | return "ufs"; |
| 56 | } |
| 57 | |
| 58 | @Override |
| 59 | public void validateArgs(CommandLine cl) throws InvalidArgumentException { |
| 60 | CommandUtils.checkNumOfArgsEquals(this, cl, 1); |
| 61 | } |
| 62 | |
| 63 | @Override |
| 64 | public Options getOptions() { |
| 65 | return new Options().addOption(MODE_OPTION); |
| 66 | } |
| 67 | |
| 68 | @Override |
| 69 | public int run(CommandLine cl) throws AlluxioException, IOException { |
| 70 | String[] args = cl.getArgs(); |
| 71 | String ufsPath = args[0]; |
| 72 | AlluxioURI ufsUri = new AlluxioURI(ufsPath); |
| 73 | if (!PathUtils.normalizePath(ufsUri.getPath(), AlluxioURI.SEPARATOR) |
| 74 | .equals(AlluxioURI.SEPARATOR)) { |
| 75 | System.out.println("The ufs path should have only scheme and authority but no path."); |
| 76 | return -1; |
| 77 | } |
| 78 | if (cl.hasOption(MODE_OPTION.getLongOpt())) { |
| 79 | UfsPMode mode; |
| 80 | switch (cl.getOptionValue(MODE_OPTION.getLongOpt())) { |
| 81 | case "noAccess": |
| 82 | mode = UfsPMode.NO_ACCESS; |
| 83 | break; |
| 84 | case "readOnly": |
| 85 | mode = UfsPMode.READ_ONLY; |
| 86 | break; |
| 87 | case "readWrite": |
| 88 | mode = UfsPMode.READ_WRITE; |
| 89 | break; |
| 90 | default: |
| 91 | System.out.println("Unrecognized mode"); |