/**
   * Gets the UiFileInfo object that represents the fileId, or the filePath if fileId is -1.
   *
   * @param tachyonClient the TachyonFS client.
   * @param fileId the file id of the file.
   * @param filePath the path of the file. valid iff fileId is -1.
   * @return the UiFileInfo object of the file.
   * @throws FileDoesNotExistException
   * @throws IOException
   */
  private UiFileInfo getUiFileInfo(TachyonFS tachyonClient, int fileId, TachyonURI filePath)
      throws FileDoesNotExistException, NotFoundException, IOException {
    ClientFileInfo fileInfo = tachyonClient.getFileStatus(fileId, filePath, true);
    if (fileInfo == null) {
      throw new FileDoesNotExistException(
          fileId != -1 ? Integer.toString(fileId) : filePath.toString());
    }

    UiFileInfo uiFileInfo = new UiFileInfo(fileInfo);
    boolean blockExistOnWorker = false;
    for (long blockId : fileInfo.getBlockIds()) {
      if (mBlockDataManager.hasBlockMeta(blockId)) {
        blockExistOnWorker = true;
        BlockMeta blockMeta = mBlockDataManager.getVolatileBlockMeta(blockId);
        long blockSize = blockMeta.getBlockSize();
        StorageLevelAlias storageLevelAlias =
            StorageDirId.getStorageLevelAlias(blockMeta.getParentDir().getStorageDirId());
        // The block last access time is not available. Use -1 for now.
        uiFileInfo.addBlock(storageLevelAlias, blockId, blockSize, -1);
      }
    }
    if (!blockExistOnWorker) {
      throw new FileDoesNotExistException(
          fileId != -1 ? Integer.toString(fileId) : filePath.toString());
    }
    return uiFileInfo;
  }
Exemplo n.º 2
0
  /**
   * Populates attribute fields with data from the MasterInfo associated with this servlet. Errors
   * will be displayed in an error field. Debugging can be enabled to display additional data. Will
   * eventually redirect the request to a jsp.
   *
   * @param request The HttpServletRequest object
   * @param response The HttpServletResponse object
   * @throws ServletException
   * @throws IOException
   * @throws UnknownHostException
   */
  @Override
  protected void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, UnknownHostException {
    request.setAttribute("debug", Constants.DEBUG);

    request.setAttribute("masterNodeAddress", mMasterInfo.getMasterAddress().toString());
    request.setAttribute("invalidPathError", "");
    List<ClientFileInfo> filesInfo = null;
    String currentPath = request.getParameter("path");

    if (currentPath.isEmpty()) {
      currentPath = "/";
    }
    request.setAttribute("currentPath", currentPath);
    try {
      UiFileInfo currentFileInfo = new UiFileInfo(mMasterInfo.getFileInfo(currentPath));
      request.setAttribute("currentDirectory", currentFileInfo);
      if (!currentFileInfo.getIsDirectory()) {
        displayFile(currentFileInfo.getAbsolutePath(), request);
        getServletContext().getRequestDispatcher("/viewFile.jsp").forward(request, response);
        return;
      }
      CommonUtils.validatePath(currentPath);
      setPathDirectories(currentPath, request);
      filesInfo = mMasterInfo.getFilesInfo(currentPath);
    } catch (FileDoesNotExistException fdne) {
      request.setAttribute("invalidPathError", "Error: Invalid Path " + fdne.getMessage());
      getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
      return;
    } catch (InvalidPathException ipe) {
      request.setAttribute("invalidPathError", "Error: Invalid Path " + ipe.getLocalizedMessage());
      getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
      return;
    }

    List<UiFileInfo> fileInfos = new ArrayList<UiFileInfo>(filesInfo.size());
    for (ClientFileInfo fileInfo : filesInfo) {
      UiFileInfo toAdd = new UiFileInfo(fileInfo);
      try {
        if (!toAdd.getIsDirectory()) {
          toAdd.setFileLocations(mMasterInfo.getFileLocations(toAdd.getId()));
        }
      } catch (FileDoesNotExistException fdne) {
        request.setAttribute("invalidPathError", "Error: Invalid Path " + fdne.getMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
        return;
      }
      fileInfos.add(toAdd);
    }
    Collections.sort(fileInfos);
    request.setAttribute("fileInfos", fileInfos);

    getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
  }
  /**
   * Populates attributes before redirecting to a jsp.
   *
   * @param request The HttpServletRequest object
   * @param response The HttpServletReponse object
   * @throws ServletException
   * @throws IOException
   */
  @Override
  protected void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    request.setAttribute("fatalError", "");
    TachyonFS tachyonClient = TachyonFS.get(mTachyonConf);

    String filePath = request.getParameter("path");
    if (!(filePath == null || filePath.isEmpty())) {
      // Display file block info
      try {
        UiFileInfo uiFileInfo = getUiFileInfo(tachyonClient, new TachyonURI(filePath));
        request.setAttribute("fileBlocksOnTier", uiFileInfo.getBlocksOnTier());
        request.setAttribute("blockSizeByte", uiFileInfo.getBlockSizeBytes());
        request.setAttribute("path", filePath);

        getServletContext()
            .getRequestDispatcher("/worker/viewFileBlocks.jsp")
            .forward(request, response);
        return;
      } catch (FileDoesNotExistException fdne) {
        request.setAttribute("fatalError", "Error: Invalid Path " + fdne.getMessage());
        getServletContext()
            .getRequestDispatcher("/worker/blockInfo.jsp")
            .forward(request, response);
        return;
      } catch (IOException ie) {
        request.setAttribute(
            "invalidPathError", "Error: File " + filePath + " is not available " + ie.getMessage());
        getServletContext()
            .getRequestDispatcher("/worker/blockInfo.jsp")
            .forward(request, response);
        return;
      } catch (NotFoundException nfe) {
        request.setAttribute("fatalError", "Error: block not found. " + nfe.getMessage());
        getServletContext()
            .getRequestDispatcher("/worker/blockInfo.jsp")
            .forward(request, response);
        return;
      }
    }

    List<Integer> fileIds = getSortedFileIds();
    request.setAttribute("nTotalFile", fileIds.size());

    // URL can not determine offset and limit, let javascript in jsp determine and redirect
    if (request.getParameter("offset") == null && request.getParameter("limit") == null) {
      getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
      return;
    }

    try {
      int offset = Integer.parseInt(request.getParameter("offset"));
      int limit = Integer.parseInt(request.getParameter("limit"));
      List<Integer> subFileIds = fileIds.subList(offset, offset + limit);
      List<UiFileInfo> uiFileInfos = new ArrayList<UiFileInfo>(subFileIds.size());
      for (int fileId : subFileIds) {
        uiFileInfos.add(getUiFileInfo(tachyonClient, fileId));
      }
      request.setAttribute("fileInfos", uiFileInfos);
    } catch (FileDoesNotExistException fdne) {
      request.setAttribute("fatalError", "Error: Invalid FileId " + fdne.getMessage());
      getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
      return;
    } catch (NumberFormatException nfe) {
      request.setAttribute(
          "fatalError", "Error: offset or limit parse error, " + nfe.getLocalizedMessage());
      getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
      return;
    } catch (IndexOutOfBoundsException iobe) {
      request.setAttribute(
          "fatalError",
          "Error: offset or offset + limit is out of bound, " + iobe.getLocalizedMessage());
      getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
      return;
    } catch (IllegalArgumentException iae) {
      request.setAttribute("fatalError", iae.getLocalizedMessage());
      getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
      return;
    } catch (NotFoundException nfe) {
      request.setAttribute("fatalError", nfe.getLocalizedMessage());
      getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
      return;
    }

    getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
  }
  /**
   * Populates attribute fields with data from the MasterInfo associated with this servlet. Errors
   * will be displayed in an error field. Debugging can be enabled to display additional data. Will
   * eventually redirect the request to a jsp.
   *
   * @param request The HttpServletRequest object
   * @param response The HttpServletResponse object
   * @throws ServletException
   * @throws IOException
   * @throws UnknownHostException
   */
  @Override
  protected void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, UnknownHostException {
    request.setAttribute("debug", Constants.DEBUG);

    request.setAttribute("masterNodeAddress", mMasterInfo.getMasterAddress().toString());
    request.setAttribute("invalidPathError", "");
    List<ClientFileInfo> filesInfo = null;
    String currentPath = request.getParameter("path");
    if (currentPath == null || currentPath.isEmpty()) {
      currentPath = Constants.PATH_SEPARATOR;
    }
    request.setAttribute("currentPath", currentPath);
    request.setAttribute("viewingOffset", 0);
    try {
      ClientFileInfo clientFileInfo = mMasterInfo.getClientFileInfo(currentPath);
      UiFileInfo currentFileInfo = new UiFileInfo(clientFileInfo);
      request.setAttribute("currentDirectory", currentFileInfo);
      request.setAttribute("blockSizeByte", currentFileInfo.getBlockSizeBytes());
      if (!currentFileInfo.getIsDirectory()) {
        String tmpParam = request.getParameter("offset");
        long offset = 0;
        try {
          if (tmpParam != null) {
            offset = Long.valueOf(tmpParam);
          }
        } catch (NumberFormatException nfe) {
          offset = 0;
        }
        if (offset < 0) {
          offset = 0;
        } else if (offset > clientFileInfo.getLength()) {
          offset = clientFileInfo.getLength();
        }
        displayFile(currentFileInfo.getAbsolutePath(), request, offset);
        request.setAttribute("viewingOffset", offset);
        getServletContext().getRequestDispatcher("/viewFile.jsp").forward(request, response);
        return;
      }
      CommonUtils.validatePath(currentPath);
      setPathDirectories(currentPath, request);
      filesInfo = mMasterInfo.getFilesInfo(currentPath);
    } catch (FileDoesNotExistException fdne) {
      request.setAttribute("invalidPathError", "Error: Invalid Path " + fdne.getMessage());
      getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
      return;
    } catch (InvalidPathException ipe) {
      request.setAttribute("invalidPathError", "Error: Invalid Path " + ipe.getLocalizedMessage());
      getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
      return;
    } catch (IOException ie) {
      request.setAttribute(
          "invalidPathError",
          "Error: File " + currentPath + " is not available " + ie.getMessage());
      getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
      return;
    }

    List<UiFileInfo> fileInfos = new ArrayList<UiFileInfo>(filesInfo.size());
    for (ClientFileInfo fileInfo : filesInfo) {
      UiFileInfo toAdd = new UiFileInfo(fileInfo);
      try {
        if (!toAdd.getIsDirectory() && fileInfo.getLength() > 0) {
          toAdd.setFileLocations(mMasterInfo.getFileBlocks(toAdd.getId()).get(0).getLocations());
        }
      } catch (FileDoesNotExistException fdne) {
        request.setAttribute("invalidPathError", "Error: Invalid Path " + fdne.getMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
        return;
      }
      fileInfos.add(toAdd);
    }
    Collections.sort(fileInfos);
    request.setAttribute("fileInfos", fileInfos);

    getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
  }
Exemplo n.º 5
0
 @Override
 public int compareTo(UiFileInfo o) {
   return ABSOLUATE_PATH.compareTo(o.getAbsolutePath());
 }