lucene如何快速计算文件的交集？

Directory directory = FSDirectory.open(Paths.get("path/to/index"));
IndexReader indexReader = DirectoryReader.open(directory);
IndexSearcher indexSearcher = new IndexSearcher(indexReader);

// 创建BooleanQuery对象
BooleanQuery.Builder booleanQueryBuilder = new BooleanQuery.Builder();

// 添加子查询
Query file1Query = new TermQuery(new Term("file_content", "file1"));
Query file2Query = new TermQuery(new Term("file_content", "file2"));
booleanQueryBuilder.add(file1Query, BooleanClause.Occur.SHOULD);
booleanQueryBuilder.add(file2Query, BooleanClause.Occur.SHOULD);

// 执行查询
Query booleanQuery = booleanQueryBuilder.build();
TopDocs topDocs = indexSearcher.search(booleanQuery, 10);

// 处理结果
for (ScoreDoc scoreDoc : topDocs.scoreDocs) {
    Document document = indexSearcher.doc(scoreDoc.doc);
    System.out.println("File path: " + document.get("file_path"));
}