Forked from stopher/ByteRangeRequestsController.java
Created
January 9, 2017 12:40
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Byte range requests in Play 2 Java Controllers. Eg. for serving MP4 video files to iPhone etc.
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| public class ByteRangeRequestsController extends Controller { | |
| // 206 Partial content Byte range requests | |
| private static Result stream(long start, long length, File file) throws IOException { | |
| FileInputStream fis = new FileInputStream(file); | |
| fis.skip(start); | |
| response().setContentType(MimeTypes.forExtension("mp4").get()); | |
| response().setHeader(CONTENT_LENGTH, ((length - start) +1l)+""); | |
| response().setHeader(CONTENT_RANGE, String.format("bytes %d-%d/%d", start, length,file.length())); | |
| response().setHeader(ACCEPT_RANGES, "bytes"); | |
| response().setHeader(CONNECTION, "keep-alive"); | |
| return status(PARTIAL_CONTENT, fis); | |
| } | |
| // GET a file item | |
| public static Result file(Long id, String filename) throws IOException { | |
| Item item = Item.fetch(id); | |
| File file = item.getFile(); | |
| if(file== null || !file.exists()) { | |
| Logger.error("File no longer exist item"+id+" filename:"+filename); | |
| return notFound(); | |
| } | |
| String rangeheader = request().getHeader(RANGE); | |
| if(rangeheader != null) { | |
| String[] split = rangeheader.substring("bytes=".length()).split("-"); | |
| if(Logger.isDebugEnabled()) { Logger.debug("Range header is:"+rangeheader); } | |
| if(split.length == 1) { | |
| long start = Long.parseLong(split[0]); | |
| long length = file.length()-1l; | |
| return stream(start, length, file); | |
| } else { | |
| long start = Long.parseLong(split[0]); | |
| long length = Long.parseLong(split[1]); | |
| return stream(start, length, file); | |
| } | |
| } | |
| // if no streaming is required we simply return the file as a 200 OK | |
| if(Play.isProd()) { | |
| response().setHeader("Cache-Control", "max-age=3600, must-revalidate"); | |
| } | |
| return ok(file); | |
| } | |
| } |
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