JsonValueObjectEncoderContext add()

in encoders/firebase-encoders-json/src/main/java/com/google/firebase/encoders/json/JsonValueObjectEncoderContext.java [227:325]
91 lines of code
27 McCabe index (conditional complexity)

  JsonValueObjectEncoderContext add(@Nullable Object o, boolean inline) throws IOException {
    if (inline && cannotBeInline(o)) {
      throw new EncodingException(
          String.format("%s cannot be encoded inline", o == null ? null : o.getClass()));
    }
    if (o == null) {
      jsonWriter.nullValue();
      return this;
    }
    if (o instanceof Number) {
      jsonWriter.value((Number) o);
      return this;
    }

    if (o.getClass().isArray()) {
      // Byte[] are a special case of arrays, because they are not mapped to an array, but to a
      // string.
      if (o instanceof byte[]) {
        return add((byte[]) o);
      }

      jsonWriter.beginArray();
      if (o instanceof int[]) {
        for (int item : (int[]) o) {
          jsonWriter.value(item);
        }
      } else if (o instanceof long[]) {
        for (long item : (long[]) o) {
          add(item);
        }
      } else if (o instanceof double[]) {
        for (double item : (double[]) o) {
          jsonWriter.value(item);
        }
      } else if (o instanceof boolean[]) {
        for (boolean item : (boolean[]) o) {
          jsonWriter.value(item);
        }
      } else if (o instanceof Number[]) {
        for (Number item : (Number[]) o) {
          add(item, false);
        }

      } else {
        for (Object item : (Object[]) o) {
          add(item, false);
        }
      }
      jsonWriter.endArray();
      return this;
    }
    if (o instanceof Collection) {
      Collection collection = (Collection) o;
      jsonWriter.beginArray();
      for (Object elem : collection) {
        add(elem, false);
      }
      jsonWriter.endArray();
      return this;
    }
    if (o instanceof Map) {
      @SuppressWarnings("unchecked")
      Map<Object, Object> map = (Map<Object, Object>) o;
      jsonWriter.beginObject();
      for (Map.Entry<Object, Object> entry : map.entrySet()) {
        Object key = entry.getKey();
        try {
          add((String) key, entry.getValue());
        } catch (ClassCastException ex) {
          throw new EncodingException(
              String.format(
                  "Only String keys are currently supported in maps, got %s of type %s instead.",
                  key, key.getClass()),
              ex);
        }
      }
      jsonWriter.endObject();
      return this;
    }
    @SuppressWarnings("unchecked") // safe because get the encoder by checking the object's type.
    ObjectEncoder<Object> objectEncoder = (ObjectEncoder<Object>) objectEncoders.get(o.getClass());
    if (objectEncoder != null) {
      return doEncode(objectEncoder, o, inline);
    }
    @SuppressWarnings("unchecked") // safe because get the encoder by checking the object's type.
    ValueEncoder<Object> valueEncoder = (ValueEncoder<Object>) valueEncoders.get(o.getClass());
    if (valueEncoder != null) {
      valueEncoder.encode(o, this);
      return this;
    }

    // Process enum last if it does not have a custom encoder registered.
    if (o instanceof Enum) {
      add(((Enum) o).name());
      return this;
    }

    return doEncode(fallbackEncoder, o, inline);
  }