Android/r2-streamer/r2-server/src/main/java/org/readium/r2_streamer/server/handler/MediaOverlayHandler.java

   1 package org.readium.r2_streamer.server.handler;
   2
   3 import com.fasterxml.jackson.core.JsonProcessingException;
   4 import com.fasterxml.jackson.databind.ObjectMapper;
   5 import org.readium.r2_streamer.fetcher.EpubFetcher;
   6 import org.readium.r2_streamer.model.publication.SMIL.MediaOverlayNode;
   7 import org.readium.r2_streamer.model.publication.SMIL.MediaOverlays;
   8 import org.readium.r2_streamer.model.publication.link.Link;
   9 import org.readium.r2_streamer.server.ResponseStatus;
  10
  11 import java.util.List;
  12 import java.util.Map;
  13
  14 import fi.iki.elonen.NanoHTTPD;
  15 import fi.iki.elonen.router.RouterNanoHTTPD;
  16
  17 /**
  18  * Created by gautam chibde on 25/5/17.
  19  */
  20
  21 public class MediaOverlayHandler extends RouterNanoHTTPD.DefaultHandler {
  22     public static final String TAG = MediaOverlayNode.class.getSimpleName();
  23
  24     @Override
  25     public String getText() {
  26         return ResponseStatus.FAILURE_RESPONSE;
  27     }
  28
  29     @Override
  30     public String getMimeType() {
  31         return "application/webpub+json";
  32     }
  33
  34     @Override
  35     public NanoHTTPD.Response.IStatus getStatus() {
  36         return NanoHTTPD.Response.Status.OK;
  37     }
  38
  39     @Override
  40     public NanoHTTPD.Response get(RouterNanoHTTPD.UriResource uriResource, Map<String, String> urlParams, NanoHTTPD.IHTTPSession session) {
  41         EpubFetcher fetcher = uriResource.initParameter(EpubFetcher.class);
  42
  43         if (session.getParameters().containsKey("resource")) {
  44             String searchQueryPath = session.getParameters().get("resource").get(0);
  45             List<Link> spines = fetcher.publication.spines;
  46             ObjectMapper objectMapper = new ObjectMapper();
  47             try {
  48                 String json = objectMapper.writeValueAsString(getMediaOverlay(spines, searchQueryPath));
  49                 return NanoHTTPD.newFixedLengthResponse(getStatus(), getMimeType(), json);
  50             } catch (JsonProcessingException e) {
  51                 return NanoHTTPD.newFixedLengthResponse(getStatus(), getMimeType(), ResponseStatus.FAILURE_RESPONSE);
  52             }
  53         } else {
  54             return NanoHTTPD.newFixedLengthResponse(getStatus(), getMimeType(), ResponseStatus.FAILURE_RESPONSE);
  55         }
  56     }
  57
  58     private MediaOverlays getMediaOverlay(List<Link> spines, String searchQueryPath) {
  59         for (Link link : spines) {
  60             if (link.href.contains(searchQueryPath)) {
  61                 return link.mediaOverlay;
  62             }
  63         }
  64         return new MediaOverlays();
  65     }
  66 }