@Component
@Scope("singleton")
public class ProductsDummyData {

    private Map<Integer, Product> products;

    public ProductsDummyData() {
    }

    public Map<Integer, Product> getProducts() {
        if (products == null || products.size() == 0) {
            products = createDummyData(3);
        }
        return this.products;
    }

    private Map<Integer, Product> createDummyData(int size) {
        Map<Integer, Product> products = new HashMap<>();
        for (int i = 1001; i < 1001 + size; i++) {
            products.put(i, new Product(i, "製品" + i, new BigDecimal(i * 2),
                    i % 2 == 0 ? true : false, createComment(i, i % 3)));
        }
        return products;
    }

    // コメントのリストの作成
    private List<Comment> createComment(int pid, int num) {
        List<Comment> comments = new ArrayList<>();
        for (int row = 1; row <= num; row++) {
            comments.add(new Comment(pid * 10 + row, "コメント" + row));
        }
        return comments;
    }
}