private String[] getParams() {
    ArrayList<String> list = new ArrayList<String>();

    Map<String, String> map = getPigParams();
    if (map != null) {
      for (Map.Entry<String, String> entry : map.entrySet()) {
        list.add("-param");
        list.add(
            StringUtils.shellQuote(
                entry.getKey() + "=" + entry.getValue(), StringUtils.SINGLE_QUOTE));
      }
    }

    // Run in local mode if filesystem is set to local.
    if (prop.getString("reportal.output.filesystem", "local").equals("local")) {
      list.add("-x");
      list.add("local");
    }

    // Register any additional Pig jars
    String additionalPigJars = prop.getString(PIG_ADDITIONAL_JARS, null);
    if (additionalPigJars != null && additionalPigJars.length() > 0) {
      list.add("-Dpig.additional.jars=" + additionalPigJars);
    }

    // Add UDF import list
    String udfImportList = prop.getString(UDF_IMPORT_LIST, null);
    if (udfImportList != null && udfImportList.length() > 0) {
      list.add("-Dudf.import.list=" + udfImportList);
    }

    list.add(prop.getString(PIG_SCRIPT));
    return list.toArray(new String[0]);
  }
  @Override
  protected String getMainArguments() {
    ArrayList<String> list = new ArrayList<String>();
    Map<String, String> map = getPigParams();
    if (map != null) {
      for (Map.Entry<String, String> entry : map.entrySet()) {
        list.add(
            "-param "
                + StringUtils.shellQuote(
                    entry.getKey() + "=" + entry.getValue(), StringUtils.SINGLE_QUOTE));
      }
    }

    List<String> paramFiles = getPigParamFiles();
    if (paramFiles != null) {
      for (String paramFile : paramFiles) {
        list.add("-param_file " + paramFile);
      }
    }

    if (getDebug()) {
      list.add("-debug");
    }

    try {
      pigLogFile = File.createTempFile("piglogfile", ".log", new File(getWorkingDirectory()));
      jobProps.put("env." + "PIG_LOG_FILE", pigLogFile.getAbsolutePath());
    } catch (IOException e) {
      e.printStackTrace();
    }

    if (pigLogFile != null) {
      list.add("-logfile " + pigLogFile.getAbsolutePath());
    }

    list.add(getScript());

    return StringUtils.join((Collection<String>) list, " ");
  }