private BookMetadata createMetadata() {
    BookMetadata metadata = new BookMetadata();

    metadata.setCommonName("Common Name");
    metadata.setTitle("Title");
    metadata.setCurrentLocation("Current Location");
    metadata.setDate("Today's date.");
    metadata.setWidth(1000);
    metadata.setHeight(2000);
    metadata.setNumberOfIllustrations(42);
    metadata.setNumberOfPages(100);
    metadata.setDimensions("1000x2000");
    metadata.setMaterial("Some Material");
    metadata.setOrigin("Origin");
    metadata.setRepository("Repository");
    metadata.setShelfmark("On the shelf");
    metadata.setYearEnd(300);
    metadata.setYearStart(100);
    metadata.setType("The type");
    metadata.setDimensionUnits("mm");

    List<BookText> bookTextList = new ArrayList<>();
    for (int i = 0; i < 3; i++) {
      BookText text = new BookText();
      text.setId("ID" + i);
      text.setFirstPage("Page " + i);
      text.setLastPage("Page " + (i + 1));
      text.setColumnsPerPage(2);
      text.setLeavesPerGathering(6);
      text.setLinesPerColumn(45);
      text.setNumberOfIllustrations(42);
      text.setNumberOfPages(36);
      text.setTitle("Title Title");

      bookTextList.add(text);
    }
    metadata.setTexts(bookTextList.toArray(new BookText[bookTextList.size()]));

    return metadata;
  }