Examples with KeywordExecutable org.apache.accumulo.start.spi.KeywordExecutable used on opensource projects

Example 1 with KeywordExecutable

use of org.apache.accumulo.start.spi.KeywordExecutable in project accumulo by apache.

the class Main method main.

public static void main(final String[] args) throws Exception {
    // Preload classes that cause a deadlock between the ServiceLoader and the DFSClient when
    // using the VFSClassLoader with jars in HDFS.
    ClassLoader loader = getClassLoader();
    Class<?> confClass = null;
    try {
        @SuppressWarnings("deprecation") var deprecatedConfClass = org.apache.accumulo.start.classloader.AccumuloClassLoader.getClassLoader().loadClass("org.apache.hadoop.conf.Configuration");
        confClass = deprecatedConfClass;
    } catch (ClassNotFoundException e) {
        log.error("Unable to find Hadoop Configuration class on classpath, check configuration.", e);
        throw e;
    }
    Object conf = null;
    try {
        conf = confClass.getDeclaredConstructor().newInstance();
    } catch (Exception e) {
        log.error("Error creating new instance of Hadoop Configuration", e);
        throw e;
    }
    try {
        Method getClassByNameOrNullMethod = conf.getClass().getMethod("getClassByNameOrNull", String.class);
        getClassByNameOrNullMethod.invoke(conf, "org.apache.hadoop.mapred.JobConf");
        getClassByNameOrNullMethod.invoke(conf, "org.apache.hadoop.mapred.JobConfigurable");
    } catch (Exception e) {
        log.error("Error pre-loading JobConf and JobConfigurable classes, VFS classloader with " + "system classes in HDFS may not work correctly", e);
        throw e;
    }
    if (args.length == 0) {
        printUsage();
        System.exit(1);
    }
    if (args[0].equals("-h") || args[0].equals("-help") || args[0].equals("--help")) {
        printUsage();
        return;
    }
    // determine whether a keyword was used or a class name, and execute it with the remaining
    // args
    String keywordOrClassName = args[0];
    KeywordExecutable keywordExec = getExecutables(loader).get(keywordOrClassName);
    if (keywordExec != null) {
        execKeyword(keywordExec, stripArgs(args, 1));
    } else {
        execMainClassName(keywordOrClassName, stripArgs(args, 1));
    }
}

Example 2 with KeywordExecutable

use of org.apache.accumulo.start.spi.KeywordExecutable in project accumulo by apache.

the class Main method checkDuplicates.

public static Map<String, KeywordExecutable> checkDuplicates(final Iterable<? extends KeywordExecutable> services) {
    TreeSet<String> banList = new TreeSet<>();
    TreeMap<String, KeywordExecutable> results = new TreeMap<>();
    for (KeywordExecutable service : services) {
        String keyword = service.keyword();
        if (banList.contains(keyword)) {
            // subsequent times a duplicate is found, just warn and exclude it
            warnDuplicate(service);
        } else if (results.containsKey(keyword)) {
            // the first time a duplicate is found, banList it and warn
            banList.add(keyword);
            warnDuplicate(results.remove(keyword));
            warnDuplicate(service);
        } else {
            // first observance of this keyword, so just add it to the list
            results.put(service.keyword(), service);
        }
    }
    return Collections.unmodifiableSortedMap(results);
}