Examples with BasicParser org.apache.commons.cli.BasicParser used on opensource projects

Example 26 with BasicParser

use of org.apache.commons.cli.BasicParser in project cdap by caskdata.

the class CoprocessorBuildTool method main.

public static void main(final String[] args) throws ParseException {
    Options options = new Options().addOption(new Option("h", "help", false, "Print this usage message.")).addOption(new Option("f", "force", false, "Overwrites any coprocessors that already exist."));
    CommandLineParser parser = new BasicParser();
    CommandLine commandLine = parser.parse(options, args);
    String[] commandArgs = commandLine.getArgs();
    // if help is an option, or if there isn't a single 'ensure' command, print usage and exit.
    if (commandLine.hasOption("h") || commandArgs.length != 1 || !"check".equalsIgnoreCase(commandArgs[0])) {
        HelpFormatter helpFormatter = new HelpFormatter();
        helpFormatter.printHelp(CoprocessorBuildTool.class.getName() + " check", "Checks that HBase coprocessors required by CDAP are loaded onto HDFS. " + "If not, the coprocessors are built and placed on HDFS.", options, "");
        System.exit(0);
    }
    boolean overwrite = commandLine.hasOption("f");
    CConfiguration cConf = CConfiguration.create();
    Configuration hConf = HBaseConfiguration.create();
    Injector injector = Guice.createInjector(new ConfigModule(cConf, hConf), // for LocationFactory
    new PrivateModule() {

        @Override
        protected void configure() {
            bind(FileContext.class).toProvider(FileContextProvider.class).in(Scopes.SINGLETON);
            expose(LocationFactory.class);
        }

        @Provides
        @Singleton
        private LocationFactory providesLocationFactory(Configuration hConf, CConfiguration cConf, FileContext fc) {
            final String namespace = cConf.get(Constants.CFG_HDFS_NAMESPACE);
            if (UserGroupInformation.isSecurityEnabled()) {
                return new FileContextLocationFactory(hConf, namespace);
            }
            return new InsecureFileContextLocationFactory(hConf, namespace, fc);
        }
    });
    try {
        SecurityUtil.loginForMasterService(cConf);
    } catch (Exception e) {
        LOG.error("Failed to login as CDAP user", e);
        System.exit(1);
    }
    LocationFactory locationFactory = injector.getInstance(LocationFactory.class);
    HBaseTableUtil tableUtil = new HBaseTableUtilFactory(cConf).get();
    CoprocessorManager coprocessorManager = new CoprocessorManager(cConf, locationFactory, tableUtil);
    try {
        Location location = coprocessorManager.ensureCoprocessorExists(overwrite);
        LOG.info("coprocessor exists at {}.", location);
    } catch (IOException e) {
        LOG.error("Unable to build and upload coprocessor jars.", e);
        System.exit(1);
    }
}