[Java 读取写入文件M5等额外信息] #Java#md5#

RetryInfo.java

static class RetryInfo {
        String md5;
        String times;

        RetryInfo(String md5, String times) {
            this.md5 = md5;
            this.times = times;
        }

        static RetryInfo readRetryProperty(File infoFile) {
            String md5 = null;
            String times = null;

            Properties properties = new Properties();
            FileInputStream inputStream = null;
            try {
                inputStream = new FileInputStream(infoFile);
                properties.load(inputStream);
                md5 = properties.getProperty(RETRY_FILE_MD5_PROPERTY);
                times = properties.getProperty(RETRY_COUNT_PROPERTY);
            } catch (IOException e) {
                TinkerLog.e(TAG, "fail to readRetryProperty:" + e);
            } finally {
                StreamUtil.closeQuietly(inputStream);
            }

            return new RetryInfo(md5, times);
        }

        static void writeRetryProperty(File infoFile, RetryInfo info) {
            if (info == null) {
                return;
            }

            File parentFile = infoFile.getParentFile();
            if (!parentFile.exists()) {
                parentFile.mkdirs();
            }

            Properties newProperties = new Properties();
            newProperties.put(RETRY_FILE_MD5_PROPERTY, info.md5);
            newProperties.put(RETRY_COUNT_PROPERTY, info.times);
            FileOutputStream outputStream = null;
            try {
                outputStream = new FileOutputStream(infoFile, false);
                newProperties.store(outputStream, null);
            } catch (Exception e) {
//                e.printStackTrace();
                TinkerLog.printErrStackTrace(TAG, e, "retry write property fail");
            } finally {
                StreamUtil.closeQuietly(outputStream);
            }

        }
    }