private InputStream newInputStream(int index) throws IOException {
            synchronized (DiskLruCache.this) {
                if (entry.currentEditor != this) {
                    throw new IllegalStateException();
                }
                if (!entry.readable) {
                    return null;
                }
                try {
                    return new FileInputStream(entry.getCleanFile(index));
                } catch (FileNotFoundException e) {
                    return null;
                }
            }
        }
Set lengths using decimal numbers like "10123".
VideoSqlLite/src/main/java/com/yc/videosqllite/disk/DiskLruCache.java