cdmlib-remote/src/main/java/eu/etaxonomy/cdm/remote/controller/MediaController.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.cdm.remote.controller;
  12
  13 import java.io.IOException;
  14 import java.net.URI;
  15 import java.util.Arrays;
  16 import java.util.List;
  17 import java.util.Map;
  18 import java.util.Set;
  19 import java.util.UUID;
  20
  21 import javax.servlet.http.HttpServletRequest;
  22 import javax.servlet.http.HttpServletResponse;
  23
  24 import org.apache.http.HttpException;
  25 import org.springframework.beans.factory.annotation.Autowired;
  26 import org.springframework.stereotype.Controller;
  27 import org.springframework.web.bind.annotation.PathVariable;
  28 import org.springframework.web.bind.annotation.RequestMapping;
  29 import org.springframework.web.servlet.ModelAndView;
  30
  31 import eu.etaxonomy.cdm.api.service.IMediaService;
  32 import eu.etaxonomy.cdm.common.media.ImageInfo;
  33 import eu.etaxonomy.cdm.model.media.Media;
  34 import eu.etaxonomy.cdm.model.media.MediaRepresentation;
  35
  36 /**
  37  * TODO write controller documentation
  38  *
  39  * @author a.kohlbecker
  40  * @date 24.03.2009
  41  */
  42
  43 @Controller
  44 @RequestMapping(value = {"/media/{uuid}"})
  45 public class MediaController extends BaseController<Media, IMediaService>
  46 {
  47
  48     /* (non-Javadoc)
  49      * @see eu.etaxonomy.cdm.remote.controller.GenericController#setService(eu.etaxonomy.cdm.api.service.IService)
  50      */
  51     @Autowired
  52     @Override
  53     public void setService(IMediaService service) {
  54         this.service = service;
  55     }
  56     private static final List<String> MEDIA_INIT_STRATEGY = Arrays.asList(new String []{
  57             "*",
  58             "representations",
  59             "representations.parts"
  60     });
  61
  62     @RequestMapping(value = {"metadata"})
  63     public ModelAndView doGetMediaMetaData(@PathVariable("uuid") UUID uuid,
  64             HttpServletRequest request, HttpServletResponse response) throws IOException {
  65         Map<String, String> result;
  66         Media media = getCdmBaseInstance(uuid, response, MEDIA_INIT_STRATEGY);
  67
  68         Set<MediaRepresentation> representations = media.getRepresentations();
  69         //get first representation and retrieve the according metadata
  70
  71         Object[] repArray = representations.toArray();
  72         Object mediaRep = repArray[0];
  73         ModelAndView mv = new ModelAndView();
  74         URI uri = null;
  75         try {
  76             if (mediaRep instanceof MediaRepresentation){
  77                 MediaRepresentation medRep = (MediaRepresentation) mediaRep;
  78                 uri = medRep.getParts().get(0).getUri();
  79                 ImageInfo imageInfo = ImageInfo.NewInstanceWithMetaData(uri, 3000);
  80                 result = imageInfo.getMetaData();
  81                 if(result != null) {
  82                     mv.addObject(result);
  83                 }
  84             }
  85         } catch (HttpException e) {
  86             HttpStatusMessage.fromString("Reading media file from " + uri.toString() + " failed").setStatusCode(400).send(response);
  87         }
  88         return mv;
  89
  90     }
  91
  92 }