Esempio n. 1
0
  @SuppressWarnings("unchecked")
  private void mergeFromField(final Map.Entry<FieldDescriptorType, Object> entry) {
    final FieldDescriptorType descriptor = entry.getKey();
    final Object otherValue = entry.getValue();

    if (descriptor.isRepeated()) {
      Object value = fields.get(descriptor);
      if (value == null) {
        // Our list is empty, but we still need to make a defensive copy of
        // the other list since we don't know if the other FieldSet is still
        // mutable.
        fields.put(descriptor, new ArrayList((List) otherValue));
      } else {
        // Concatenate the lists.
        ((List) value).addAll((List) otherValue);
      }
    } else if (descriptor.getLiteJavaType() == WireFormat.JavaType.MESSAGE) {
      Object value = fields.get(descriptor);
      if (value == null) {
        fields.put(descriptor, otherValue);
      } else {
        // Merge the messages.
        fields.put(
            descriptor,
            descriptor
                .internalMergeFrom(((MessageLite) value).toBuilder(), (MessageLite) otherValue)
                .build());
      }

    } else {
      fields.put(descriptor, otherValue);
    }
  }
Esempio n. 2
0
  /**
   * 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);
  }
Esempio n. 3
0
  /**
   * 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);
  }