Examples of com.cloudera.lib.service.Hadoop.execute()

com.cloudera.lib.service.Hadoop.execute()

  private <T> T fsExecute(Principal user, String doAs, Hadoop.FileSystemExecutor<T> executor)
    throws IOException, HadoopException {
    String hadoopUser = getEffectiveUser(user, doAs);
    Hadoop hadoop = HoopServer.get().get(Hadoop.class);
    Configuration conf = HoopServer.get().get(Hadoop.class).getDefaultConfiguration();
    return hadoop.execute(hadoopUser, conf, executor);
  }


  /**
   * Returns a filesystem instance. The fileystem instance is wired for release at the completion of
   * the current Servlet request via the {@link FileSystemReleaseFilter}.

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    server.init();
    Hadoop hadoop = server.get(Hadoop.class);


    final FileSystem fsa[] = new FileSystem[1];


    hadoop.execute("u", getHadoopConf(), new Hadoop.FileSystemExecutor<Void>() {
      @Override
      public Void execute(FileSystem fs) throws IOException {
        fs.mkdirs(new Path("/tmp/foo"));
        fsa[0] = fs;
        return null;

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    server.init();
    Hadoop hadoop = server.get(Hadoop.class);


    JobConf jobConf = getHadoopConf();
    jobConf.set("fs.default.name", "");
    hadoop.execute("u", jobConf, new Hadoop.FileSystemExecutor<Void>() {
      @Override
      public Void execute(FileSystem fs) throws IOException {
        return null;
      }
    });

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    server.init();
    Hadoop hadoop = server.get(Hadoop.class);


    final FileSystem fsa[] = new FileSystem[1];
    try {
      hadoop.execute("u", getHadoopConf(), new Hadoop.FileSystemExecutor<Void>() {
        @Override
        public Void execute(FileSystem fs) throws IOException {
          fsa[0] = fs;
          throw new IOException();
        }

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    server.init();
    Hadoop hadoop = server.get(Hadoop.class);


    JobConf jobConf = getHadoopConf();
    jobConf.set("fs.default.name", "");
    hadoop.execute("u", jobConf, new Hadoop.JobClientExecutor<Void>() {
      @Override
      public Void execute(JobClient jobClient, FileSystem fs) throws IOException {
        return null;
      }
    });

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    server.init();
    Hadoop hadoop = server.get(Hadoop.class);


    JobConf jobConf = getHadoopConf();
    jobConf.set("mapred.job.tracker", "");
    hadoop.execute("u", jobConf, new Hadoop.JobClientExecutor<Void>() {
      @Override
      public Void execute(JobClient jobClient, FileSystem fs) throws IOException {
        return null;
      }
    });

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    Hadoop hadoop = server.get(Hadoop.class);


    final JobClient jca[] = new JobClient[1];
    final FileSystem fsa[] = new FileSystem[1];


    hadoop.execute("u", getHadoopConf(), new Hadoop.JobClientExecutor<Void>() {
      @Override
      public Void execute(JobClient jc, FileSystem fs) throws IOException {
        fs.mkdirs(new Path("/tmp/foo"));
        jc.getQueues();
        jca[0] = jc;

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    final JobClient jca[] = new JobClient[1];
    final FileSystem fsa[] = new FileSystem[1];


    try {
      hadoop.execute("u", getHadoopConf(), new Hadoop.JobClientExecutor<Void>() {
        @Override
        public Void execute(JobClient jc, FileSystem fs) throws IOException {
          jca[0] = jc;
          fsa[0] = fs;
          throw new IOException();

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