Esempio n. 1
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  /**
   * Useful for implementing {@link Message.Builder#setField(Descriptors.FieldDescriptor,Object)}.
   */
  @SuppressWarnings("unchecked")
  public void setField(final FieldDescriptorType descriptor, Object value) {
    if (descriptor.isRepeated()) {
      if (!(value instanceof List)) {
        throw new IllegalArgumentException(
            "Wrong object type used with protocol message reflection.");
      }

      // Wrap the contents in a new list so that the caller cannot change
      // the list's contents after setting it.
      final List newList = new ArrayList();
      newList.addAll((List) value);
      for (final Object element : newList) {
        verifyType(descriptor.getLiteType(), element);
      }
      value = newList;
    } else {
      verifyType(descriptor.getLiteType(), value);
    }

    fields.put(descriptor, value);
  }
Esempio n. 2
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  /**
   * Useful for implementing {@link
   * Message.Builder#setRepeatedField(Descriptors.FieldDescriptor,int,Object)}.
   */
  @SuppressWarnings("unchecked")
  public void setRepeatedField(
      final FieldDescriptorType descriptor, final int index, final Object value) {
    if (!descriptor.isRepeated()) {
      throw new IllegalArgumentException(
          "getRepeatedField() can only be called on repeated fields.");
    }

    final Object list = fields.get(descriptor);
    if (list == null) {
      throw new IndexOutOfBoundsException();
    }

    verifyType(descriptor.getLiteType(), value);
    ((List) list).set(index, value);
  }
Esempio n. 3
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  /**
   * Useful for implementing {@link
   * Message.Builder#addRepeatedField(Descriptors.FieldDescriptor,Object)}.
   */
  @SuppressWarnings("unchecked")
  public void addRepeatedField(final FieldDescriptorType descriptor, final Object value) {
    if (!descriptor.isRepeated()) {
      throw new IllegalArgumentException(
          "addRepeatedField() can only be called on repeated fields.");
    }

    verifyType(descriptor.getLiteType(), value);

    final Object existingValue = fields.get(descriptor);
    List list;
    if (existingValue == null) {
      list = new ArrayList();
      fields.put(descriptor, list);
    } else {
      list = (List) existingValue;
    }

    list.add(value);
  }