gistfile1.java

public SearchResult<Integer> searchRelatedVideos(int videoId, int length) {
      Cache<String, SearchResult<Integer>> cache = cacheFactory.getMemcachedMagnetCache("relatedvideo-cache");
      String key = "related/" + videoId + "/" + length;
      SearchResult<Integer> result = cache.get(key);

      if(result != null && result.getSize() != 0) {
         logger.debug("Related videos found in cache for video : " + videoId);
         return result;
      }
      VideoInfo video = videoInfoService.getVideoInfo(videoId);
      StringBuilder builder = new StringBuilder();
      StringTokenizer tokenizer = new StringTokenizer(video.getTitle(), " \t\n\r()[]!:~*");

      while(tokenizer.hasMoreTokens()) {
         builder.append(tokenizer.nextToken()).append(" ");
      }

      for(TinyTagInfo tag : video.getTagInfos()) {
         if(tag == null) {
            continue;
         }

         if(tag.getTagName() != null && !tag.getTagName().trim().equals("")) {
            tokenizer = new StringTokenizer(tag.getTagName(), " \t\n\r()[]!:~*");
            while(tokenizer.hasMoreTokens()) {
               builder.append(tokenizer.nextToken()).append(" ");
            }
         }
      }
      String query = builder.toString().replaceAll("\\?", "");
      query = StringUtils.removePunctuationCharacters(query, " ");
      query = StringUtils.removeDuplicateWhitespaces(query, " ");
      query = query.trim();
      try {
         result = luceneService.searchVideos(query, null, ContentTypeCriterion.SEARCH_RESTRICTED.getContentType(), length + 1);
      } catch(SearchException e) {
         logger.error("Search exception occured while searching related videos : " + e.getMessage());
         return new SearchResultBean(new ArrayList<Integer>(0));
      }

      result.getAllItems().remove(new Integer(videoId));

      if(result.getCachedSize() > length)
         result.getAllItems().remove(result.getCachedSize() - 1);
      cache.put(key, result);


      return result;
   }