private static Input getInputForm()

in zeppelin-interpreter/src/main/java/org/apache/zeppelin/display/Input.java [198:300]
82 lines of code
16 McCabe index (conditional complexity)

  private static Input getInputForm(Matcher match) {
    String hiddenPart = match.group(1);
    boolean hidden = false;
    if ("_".equals(hiddenPart)) {
      hidden = true;
    }
    String m = match.group(2);

    String namePart;
    String valuePart;

    int p = m.indexOf('=');
    if (p > 0) {
      namePart = m.substring(0, p);
      valuePart = m.substring(p + 1);
    } else {
      namePart = m;
      valuePart = null;
    }


    String varName;
    String displayName = null;
    String type = null;
    String arg = null;
    Object defaultValue = null;
    ParamOption[] paramOptions = null;

    // get var name type
    String varNamePart;
    String[] typeArray = getType(namePart);
    if (typeArray != null) {
      type = typeArray[0];
      arg = typeArray[1];
      varNamePart = typeArray[2];
    } else {
      varNamePart = namePart;
    }

    // get var name and displayname
    String[] varNameArray = getNameAndDisplayName(varNamePart);
    if (varNameArray != null) {
      varName = varNameArray[0];
      displayName = varNameArray[1];
    } else {
      varName = varNamePart.trim();
    }

    // get defaultValue
    if (valuePart != null) {
      // find default value
      int optionP = valuePart.indexOf(",");
      if (optionP >= 0) { // option available
        defaultValue = valuePart.substring(0, optionP);
        if (type != null && type.equals("checkbox")) {
          // checkbox may contain multiple default checks
          defaultValue = Input.splitPipe((String) defaultValue);
        }
        String optionPart = valuePart.substring(optionP + 1);
        String[] options = Input.splitPipe(optionPart);

        paramOptions = new ParamOption[options.length];

        for (int i = 0; i < options.length; i++) {

          String[] optNameArray = getNameAndDisplayName(options[i]);
          if (optNameArray != null) {
            paramOptions[i] = new ParamOption(optNameArray[0], optNameArray[1]);
          } else {
            paramOptions[i] = new ParamOption(options[i], null);
          }
        }


      } else { // no option
        defaultValue = valuePart;
      }

    }

    Input input = null;
    if (type == null) {
      if (paramOptions == null) {
        input = new TextBox(varName, (String) defaultValue);
      } else {
        input = new Select(varName, defaultValue, paramOptions);
      }
    } else if (type.equals("checkbox")) {
      input = new CheckBox(varName, (Object[]) defaultValue, paramOptions);
    } else if (type.equals("password")) {
      input = new Password(varName);
    } else {
      throw new RuntimeException("Could not recognize dynamic form with type: " + type);
    }
    input.setArgument(arg);
    if (!StringUtils.isBlank(displayName)) {
      // only set displayName when it is not empty (user explicitly specify it)
      // e.g. ${name(display_name)=value)
      input.setDisplayName(displayName);
    }
    input.setHidden(hidden);
    return input;
  }