Exemple #1
0
  /** Iterates over fields and their annotations, and creates argument handlers. */
  @Override
  protected void registered(API_VERSION version) {
    try {
      ArrayList<Class> classes = new ArrayList<Class>();
      {
        Class c = getClass();
        while (c != null) {
          classes.add(c);
          c = c.getSuperclass();
        }
      }
      // Fields from parent classes first
      Collections.reverse(classes);
      ArrayList<Field> fields = new ArrayList<Field>();
      for (Class c : classes)
        for (Field field : c.getDeclaredFields())
          if (!Modifier.isStatic(field.getModifiers())) fields.add(field);

      // TODO remove map, response field already processed specifically
      HashMap<String, FrameClassVec> classVecs = new HashMap<String, FrameClassVec>();
      for (Field f : fields) {
        Annotation[] as = f.getAnnotations();
        API api = find(as, API.class);

        if (api != null && Helper.isInput(api)) {
          f.setAccessible(true);
          Object defaultValue = f.get(this);

          // Create an Argument instance to reuse existing Web framework for now
          Argument arg = null;

          // Simplest case, filter is an Argument
          if (Argument.class.isAssignableFrom(api.filter())) {
            arg = (Argument) newInstance(api);
          }

          //
          else if (ColumnSelect.class.isAssignableFrom(api.filter())) {
            ColumnSelect name = (ColumnSelect) newInstance(api);
            H2OHexKey key = null;
            for (Argument a : _arguments)
              if (a instanceof H2OHexKey && name._ref.equals(((H2OHexKey) a)._name))
                key = (H2OHexKey) a;
            arg = new HexAllColumnSelect(f.getName(), key);
          }

          //
          else if (Dependent.class.isAssignableFrom(api.filter())) {
            Dependent d = (Dependent) newInstance(api);
            Argument ref = find(d._ref);
            if (d instanceof VecSelect) arg = new FrameKeyVec(f.getName(), (TypeaheadKey) ref);
            else if (d instanceof VecClassSelect) {
              arg = new FrameClassVec(f.getName(), (TypeaheadKey) ref);
              classVecs.put(d._ref, (FrameClassVec) arg);
            } else if (d instanceof MultiVecSelect) {
              FrameClassVec response = classVecs.get(d._ref);
              boolean names = ((MultiVecSelect) d)._namesOnly;
              arg =
                  new FrameKeyMultiVec(
                      f.getName(), (TypeaheadKey) ref, response, api.help(), names);
            } else if (d instanceof DoClassBoolean) {
              FrameClassVec response = classVecs.get(d._ref);
              arg = new ClassifyBool(f.getName(), response);
            }
          }

          // String
          else if (f.getType() == String.class) arg = new Str(f.getName(), (String) defaultValue);

          // Real
          else if (f.getType() == float.class || f.getType() == double.class) {
            double val = ((Number) defaultValue).doubleValue();
            arg = new Real(f.getName(), api.required(), val, api.dmin(), api.dmax(), api.help());
          }

          // LongInt
          else if (f.getType() == int.class || f.getType() == long.class) {
            long val = ((Number) defaultValue).longValue();
            arg = new LongInt(f.getName(), api.required(), val, api.lmin(), api.lmax(), api.help());
          }

          // RSeq
          else if (f.getType() == int[].class) {
            int[] val = (int[]) defaultValue;
            double[] ds = null;
            if (val != null) {
              ds = new double[val.length];
              for (int i = 0; i < ds.length; i++) ds[i] = val[i];
            }
            arg =
                new RSeq(
                    f.getName(),
                    api.required(),
                    new NumberSequence(ds, null, true),
                    false,
                    api.help());
          }

          // RSeq
          else if (f.getType() == double[].class) {
            double[] val = (double[]) defaultValue;
            arg =
                new RSeq(
                    f.getName(),
                    api.required(),
                    new NumberSequence(val, null, false),
                    false,
                    api.help());
          }

          // Bool
          else if (f.getType() == boolean.class && api.filter() == Default.class) {
            boolean val = (Boolean) defaultValue;
            arg = new Bool(f.getName(), val, api.help());
          }

          // Enum
          else if (Enum.class.isAssignableFrom(f.getType())) {
            Enum val = (Enum) defaultValue;
            arg = new EnumArgument(f.getName(), val);
          }

          // Key
          else if (f.getType() == Key.class) {
            TypeaheadKey t = new TypeaheadKey();
            t._defaultValue = (Key) defaultValue;
            arg = t;
          }

          // Generic Freezable field
          else if (Freezable.class.isAssignableFrom(f.getType()))
            arg = new TypeaheadKey(f.getType(), api.required());

          if (arg != null) {
            arg._name = f.getName();
            arg._displayName = api.displayName().length() > 0 ? api.displayName() : null;
            arg._required = api.required();
            arg._field = f;
            arg._hideInQuery = api.hide();
            arg._gridable = api.gridable();
            arg._mustExist = api.mustExist();
            arg._validator = newValidator(api);
          }
        }
      }
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }