コード例 #1
0
ファイル: AService.java プロジェクト: jb574/recipe-app
  /**
   * method to return an image at a specified url
   *
   * @param url the url in question
   * @param imageId the unique identification number of the image
   * @return the image in question
   * @throws MalformedURLException if the url is not properly formed
   * @throws IOException if this operation fails for whateve reason
   */
  public static WebImage getImageAtUrl(String url, Integer imageId)
      throws MalformedURLException, IOException {
    URLFetchService fetchService = URLFetchServiceFactory.getURLFetchService();
    WebImage image = new WebImage();

    // Fetch the image at the location given by the url query string parameter
    HTTPResponse fetchResponse = fetchService.fetch(new URL(url));

    for (HTTPHeader header : fetchResponse.getHeaders()) {
      // For each request header, check whether the name equals
      // "Content-Type"; if so, store the value of this header
      // in a member variable
      if (header.getName().equalsIgnoreCase("content-type")) {
        image.setImageContentType(header.getValue());
        break;
      }
    }
    Blob imageData = new Blob(fetchResponse.getContent());
    image.setImageId(imageId);
    image.setImageData(imageData);
    image.setImageUrl(url);
    return (image.getImageBytes() == null ? null : image);
  }
コード例 #2
0
  public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
    int index;

    DatastoreService ds;
    MemcacheService ms;
    BlobstoreService bs;
    URLFetchService us;
    FileService fs;

    Map<String, List<BlobKey>> blobMap;
    BlobKey blobKey;
    BlobInfoFactory blobInfoFactory;
    BlobInfo blobInfo;

    int postCount;
    int postIndex;
    String postType;
    String postText;
    String postDelpw;
    String postShowgallery;
    DataObj dataObj;
    String filelink;

    String picUrl;
    HTTPResponse picRes;
    List<HTTPHeader> headerList;
    String picMime;
    String[] fileNamePart;
    AppEngineFile picFile;
    FileWriteChannel writeChannel;

    PostObj postObj;
    List<PostObj> postObjList;
    String linkID;

    resp.setCharacterEncoding("UTF-8");
    resp.setContentType("text/plain");

    try {
      ds = DatastoreServiceFactory.getDatastoreService();
      ms = MemcacheServiceFactory.getMemcacheService();
      bs = BlobstoreServiceFactory.getBlobstoreService();
      us = URLFetchServiceFactory.getURLFetchService();
      fs = FileServiceFactory.getFileService();
      blobInfoFactory = new BlobInfoFactory(ds);

      blobMap = bs.getUploads(req);
      postCount = Integer.valueOf(req.getParameter("input_post_count"));
      postObjList = new ArrayList<PostObj>();

      for (postIndex = 0; postIndex < postCount; postIndex++) {
        try {
          postType = req.getParameter("input_post_type_" + postIndex);
          if (postType == null) {
            continue;
          }

          postText = req.getParameter("input_post_text_" + postIndex);
          postDelpw = req.getParameter("input_post_delpw_" + postIndex);
          postShowgallery = req.getParameter("input_post_showgallery_" + postIndex);
          if (postShowgallery == null) {
            postShowgallery = "";
          }

          if (postType.equals("file") == true) {
            blobKey = blobMap.get("input_post_file_" + postIndex).get(0);
            if (blobKey == null) {
              throw new Exception();
            }

            dataObj = new DataObj();
            dataObj.fileid = createUID();
            dataObj.posttime = new Date().getTime();
            dataObj.delpw = postDelpw;
            dataObj.blobkey = blobKey;
            dataObj.putDB(ds);

            blobInfo = blobInfoFactory.loadBlobInfo(dataObj.blobkey);
            filelink =
                "http://"
                    + req.getServerName()
                    + "/down/"
                    + dataObj.fileid
                    + "/"
                    + blobInfo.getFilename();
            postObj =
                new PostObj(
                    dataObj.fileid,
                    filelink,
                    blobInfo.getSize(),
                    dataObj.posttime,
                    dataObj.delpw,
                    postShowgallery);
            postObjList.add(postObj);
          } else if (postType.equals("url") == true) {
            picUrl = postText;

            picRes = us.fetch(new URL(picUrl));
            headerList = picRes.getHeaders();
            picMime = "application/octet-stream";
            for (index = 0; index < headerList.size(); index++) {
              if (headerList.get(index).getName().compareToIgnoreCase("Content-Type") == 0) {
                picMime = headerList.get(index).getValue();
                break;
              }
            }

            fileNamePart = picUrl.split("/");

            picFile = fs.createNewBlobFile(picMime, fileNamePart[fileNamePart.length - 1]);
            writeChannel = fs.openWriteChannel(picFile, true);
            writeChannel.write(ByteBuffer.wrap(picRes.getContent()));
            writeChannel.closeFinally();

            dataObj = new DataObj();
            dataObj.fileid = createUID();
            dataObj.posttime = new Date().getTime();
            dataObj.delpw = postDelpw;
            dataObj.blobkey = fs.getBlobKey(picFile);
            dataObj.putDB(ds);

            blobInfo = blobInfoFactory.loadBlobInfo(dataObj.blobkey);
            filelink =
                "http://"
                    + req.getServerName()
                    + "/down/"
                    + dataObj.fileid
                    + "/"
                    + blobInfo.getFilename();
            postObj =
                new PostObj(
                    dataObj.fileid,
                    filelink,
                    blobInfo.getSize(),
                    dataObj.posttime,
                    dataObj.delpw,
                    postShowgallery);
            postObjList.add(postObj);
          }
        } catch (Exception e) {
        }
      }

      linkID = postFile(us, postObjList);

      if (req.getParameter("specflag") != null) {
        resp.getWriter().print("http://tnfshmoe.appspot.com/link.jsp?linkid=" + linkID);
      } else {
        resp.sendRedirect("http://tnfshmoe.appspot.com/link.jsp?linkid=" + linkID);
      }
    } catch (Exception e) {
    }
  }