public String createBookSummary()

in sessions/next24/books-genai-vertex-springai/src/main/java/services/domain/BooksService.java [105:151]
47 lines of code
8 McCabe index (conditional complexity)

    public String createBookSummary(BufferedReader reader, String fileName) {
        String summary = "";
        try {
            String bookTitle = FileUtility.getTitle(fileName);
            bookTitle = SqlUtility.replaceUnderscoresWithSpaces(bookTitle);
            summary = getBookSummary(bookTitle);
            if (!summary.isEmpty()) {
                return summary;
            }
            summary = "";
            Map<String, Object> book = dao.findBook(bookTitle);
            Integer bookId = (Integer) book.get("book_id");
            String content="";
            Integer page = 1;
            char[] cbuf = new char[summaryChunkCharacters];
            int charsRead;
            String context = "";
            logger.info("The prompt build summary: " +promptSubSummary.formatted(context, content));
            while ((charsRead = reader.read(cbuf)) != -1) {
                content = new String(cbuf, 0, charsRead);
                try {
                    context = vertexAIClient.promptModel(promptSubSummary.formatted(context, content), model);
                } catch (io.grpc.StatusRuntimeException statusRuntimeException) {
                    logger.warn("vertexAIClient.promptModel(promptSubSummary.formatted(context, content)) statusRuntimeException: " + statusRuntimeException.getMessage());
                    continue;
                } catch (RuntimeException e) {
                    logger.warn("Failed to interact with Vertex AI model: "+e.getMessage(), e);
                    continue;
                }
                summary += "\n"+context;
                if(page%10==0)
                    logger.info("The prompt build summary: " +summary);
                page++;
            }
            reader.close();
            logger.info("The book "+bookTitle +" has pages: " +page);
            logger.info("The summary for book "+bookTitle +" is: " +summary);
            logger.info("The prompt summary: " +promptSummary.formatted(summary));
            summary = vertexAIClient.promptModel(promptSummary.formatted(summary), model);
            dao.insertSummaries(bookId, summary);
        } catch (FileNotFoundException e) {
            logger.error("File %s not found. Failed with exception %s", fileName, e.getMessage());
        } catch (IOException e) {
            logger.error("Reading from file %s failure. Failed with exception %s", fileName, e.getMessage());
        }
        return summary;
    }