// 构建试卷对象。
private Paper[] buildPaper(Subject subject) {
if (logger.isDebugEnabled()) logger.debug("构建试卷对象...");
if (subject == null) return null;
if (subject.getAreas() == null || subject.getAreas().size() == 0) {
return new Paper[] {this.buildPaper(subject, null)};
}
List<Paper> papers = new ArrayList<>();
for (Area area : subject.getAreas()) {
if (area == null) continue;
papers.add(this.buildPaper(subject, area));
}
return papers.toArray(new Paper[0]);
}
