Examples with FileDoesNotExistException alluxio.exception.FileDoesNotExistException used on opensource projects

Example 6 with FileDoesNotExistException

use of alluxio.exception.FileDoesNotExistException in project alluxio by Alluxio.

the class WebInterfaceBrowseServlet method doGet.

/**
   * 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 {@link HttpServletRequest} object
   * @param response the {@link HttpServletResponse} object
   * @throws ServletException if the target resource throws this exception
   * @throws IOException if the target resource throws this exception
   */
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    if (SecurityUtils.isSecurityEnabled() && AuthenticatedClientUser.get() == null) {
        AuthenticatedClientUser.set(LoginUser.get().getName());
    }
    request.setAttribute("debug", Configuration.getBoolean(PropertyKey.DEBUG));
    request.setAttribute("showPermissions", Configuration.getBoolean(PropertyKey.SECURITY_AUTHORIZATION_PERMISSION_ENABLED));
    request.setAttribute("masterNodeAddress", mMaster.getRpcAddress().toString());
    request.setAttribute("invalidPathError", "");
    List<FileInfo> filesInfo;
    String requestPath = request.getParameter("path");
    if (requestPath == null || requestPath.isEmpty()) {
        requestPath = AlluxioURI.SEPARATOR;
    }
    AlluxioURI currentPath = new AlluxioURI(requestPath);
    request.setAttribute("currentPath", currentPath.toString());
    request.setAttribute("viewingOffset", 0);
    try {
        long fileId = mMaster.getFileSystemMaster().getFileId(currentPath);
        FileInfo fileInfo = mMaster.getFileSystemMaster().getFileInfo(fileId);
        UIFileInfo currentFileInfo = new UIFileInfo(fileInfo);
        if (currentFileInfo.getAbsolutePath() == null) {
            throw new FileDoesNotExistException(currentPath.toString());
        }
        request.setAttribute("currentDirectory", currentFileInfo);
        request.setAttribute("blockSizeBytes", currentFileInfo.getBlockSizeBytes());
        if (!currentFileInfo.getIsDirectory()) {
            String offsetParam = request.getParameter("offset");
            long relativeOffset = 0;
            long offset;
            try {
                if (offsetParam != null) {
                    relativeOffset = Long.parseLong(offsetParam);
                }
            } catch (NumberFormatException e) {
                relativeOffset = 0;
            }
            String endParam = request.getParameter("end");
            // relative to the end of the file.
            if (endParam == null) {
                offset = relativeOffset;
            } else {
                offset = fileInfo.getLength() - relativeOffset;
            }
            if (offset < 0) {
                offset = 0;
            } else if (offset > fileInfo.getLength()) {
                offset = fileInfo.getLength();
            }
            try {
                displayFile(new AlluxioURI(currentFileInfo.getAbsolutePath()), request, offset);
            } catch (AlluxioException e) {
                throw new IOException(e);
            }
            request.setAttribute("viewingOffset", offset);
            getServletContext().getRequestDispatcher("/viewFile.jsp").forward(request, response);
            return;
        }
        setPathDirectories(currentPath, request);
        filesInfo = mMaster.getFileSystemMaster().listStatus(currentPath, ListStatusOptions.defaults().setLoadMetadataType(LoadMetadataType.Always));
    } catch (FileDoesNotExistException e) {
        request.setAttribute("invalidPathError", "Error: Invalid Path " + e.getMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
        return;
    } catch (InvalidPathException e) {
        request.setAttribute("invalidPathError", "Error: Invalid Path " + e.getLocalizedMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
        return;
    } catch (IOException e) {
        request.setAttribute("invalidPathError", "Error: File " + currentPath + " is not available " + e.getMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
        return;
    } catch (AccessControlException e) {
        request.setAttribute("invalidPathError", "Error: File " + currentPath + " cannot be accessed " + e.getMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
        return;
    }
    List<UIFileInfo> fileInfos = new ArrayList<>(filesInfo.size());
    for (FileInfo fileInfo : filesInfo) {
        UIFileInfo toAdd = new UIFileInfo(fileInfo);
        try {
            if (!toAdd.getIsDirectory() && fileInfo.getLength() > 0) {
                FileBlockInfo blockInfo = mMaster.getFileSystemMaster().getFileBlockInfoList(new AlluxioURI(toAdd.getAbsolutePath())).get(0);
                List<String> locations = new ArrayList<>();
                // add the in-memory block locations
                for (BlockLocation location : blockInfo.getBlockInfo().getLocations()) {
                    WorkerNetAddress address = location.getWorkerAddress();
                    locations.add(address.getHost() + ":" + address.getDataPort());
                }
                // add underFS locations
                locations.addAll(blockInfo.getUfsLocations());
                toAdd.setFileLocations(locations);
            }
        } catch (FileDoesNotExistException e) {
            request.setAttribute("FileDoesNotExistException", "Error: non-existing file " + e.getMessage());
            getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
            return;
        } catch (InvalidPathException e) {
            request.setAttribute("InvalidPathException", "Error: invalid path " + e.getMessage());
            getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
        } catch (AccessControlException e) {
            request.setAttribute("AccessControlException", "Error: File " + currentPath + " cannot be accessed " + e.getMessage());
            getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
            return;
        }
        fileInfos.add(toAdd);
    }
    Collections.sort(fileInfos, UIFileInfo.PATH_STRING_COMPARE);
    request.setAttribute("nTotalFile", fileInfos.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("/browse.jsp").forward(request, response);
        return;
    }
    try {
        int offset = Integer.parseInt(request.getParameter("offset"));
        int limit = Integer.parseInt(request.getParameter("limit"));
        List<UIFileInfo> sub = fileInfos.subList(offset, offset + limit);
        request.setAttribute("fileInfos", sub);
    } catch (NumberFormatException e) {
        request.setAttribute("fatalError", "Error: offset or limit parse error, " + e.getLocalizedMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
        return;
    } catch (IndexOutOfBoundsException e) {
        request.setAttribute("fatalError", "Error: offset or offset + limit is out of bound, " + e.getLocalizedMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
        return;
    } catch (IllegalArgumentException e) {
        request.setAttribute("fatalError", e.getLocalizedMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
        return;
    }
    getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
}

Example 7 with FileDoesNotExistException

use of alluxio.exception.FileDoesNotExistException in project alluxio by Alluxio.

the class WebInterfaceDownloadServlet method doGet.

/**
   * Prepares for downloading a file.
   *
   * @param request the {@link HttpServletRequest} object
   * @param response the {@link HttpServletResponse} object
   * @throws ServletException if the target resource throws this exception
   * @throws IOException if the target resource throws this exception
   */
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    if (SecurityUtils.isSecurityEnabled() && AuthenticatedClientUser.get() == null) {
        AuthenticatedClientUser.set(LoginUser.get().getName());
    }
    String requestPath = request.getParameter("path");
    if (requestPath == null || requestPath.isEmpty()) {
        requestPath = AlluxioURI.SEPARATOR;
    }
    AlluxioURI currentPath = new AlluxioURI(requestPath);
    try {
        long fileId = mFsMaster.getFileId(currentPath);
        FileInfo fileInfo = mFsMaster.getFileInfo(fileId);
        if (fileInfo == null) {
            throw new FileDoesNotExistException(currentPath.toString());
        }
        downloadFile(new AlluxioURI(fileInfo.getPath()), request, response);
    } catch (FileDoesNotExistException e) {
        request.setAttribute("invalidPathError", "Error: Invalid Path " + e.getMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
    } catch (InvalidPathException e) {
        request.setAttribute("invalidPathError", "Error: Invalid Path " + e.getLocalizedMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
    } catch (AlluxioException e) {
        request.setAttribute("invalidPathError", "Error: " + e.getLocalizedMessage());
        getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
    }
}

Example 8 with FileDoesNotExistException

use of alluxio.exception.FileDoesNotExistException in project alluxio by Alluxio.

the class FileSystemMasterTest method loadMetadata.

@Test
public void loadMetadata() throws Exception {
    AlluxioURI ufsMount = new AlluxioURI(mTestFolder.newFolder().getAbsolutePath());
    mFileSystemMaster.createDirectory(new AlluxioURI("/mnt/"), CreateDirectoryOptions.defaults());
    // Create ufs file
    Files.createFile(Paths.get(ufsMount.join("file").getPath()));
    // Created nested file
    Files.createDirectory(Paths.get(ufsMount.join("nested").getPath()));
    Files.createFile(Paths.get(ufsMount.join("nested").join("file").getPath()));
    mFileSystemMaster.mount(new AlluxioURI("/mnt/local"), ufsMount, MountOptions.defaults());
    // Test simple file.
    AlluxioURI uri = new AlluxioURI("/mnt/local/file");
    mFileSystemMaster.loadMetadata(uri, LoadMetadataOptions.defaults().setCreateAncestors(false));
    Assert.assertNotNull(mFileSystemMaster.getFileInfo(uri));
    // Test nested file.
    uri = new AlluxioURI("/mnt/local/nested/file");
    try {
        mFileSystemMaster.loadMetadata(uri, LoadMetadataOptions.defaults().setCreateAncestors(false));
        Assert.fail("loadMetadata() without recursive, for a nested file should fail.");
    } catch (FileDoesNotExistException e) {
    // Expected case.
    }
    // Test the nested file with recursive flag.
    mFileSystemMaster.loadMetadata(uri, LoadMetadataOptions.defaults().setCreateAncestors(true));
    Assert.assertNotNull(mFileSystemMaster.getFileInfo(uri));
}

Example 9 with FileDoesNotExistException

use of alluxio.exception.FileDoesNotExistException in project alluxio by Alluxio.

the class FileSystemMasterTest method renameToNonExistentParent.

@Test
public void renameToNonExistentParent() throws Exception {
    CreateFileOptions options = CreateFileOptions.defaults().setBlockSizeBytes(Constants.KB).setRecursive(true);
    mFileSystemMaster.createFile(NESTED_URI, options);
    try {
        mFileSystemMaster.rename(NESTED_URI, new AlluxioURI("/testDNE/b"), RenameOptions.defaults());
        Assert.fail("Rename to a non-existent parent path should not succeed.");
    } catch (FileDoesNotExistException e) {
    // Expected case
    }
}

Example 10 with FileDoesNotExistException

use of alluxio.exception.FileDoesNotExistException in project alluxio by Alluxio.

the class FileSystemMasterTest method mountUnmount.

@Test
public void mountUnmount() throws Exception {
    AlluxioURI ufsMount = new AlluxioURI(mTestFolder.newFolder().getAbsolutePath());
    mFileSystemMaster.createDirectory(new AlluxioURI("/mnt/"), CreateDirectoryOptions.defaults());
    // Alluxio mount point should not exist before mounting.
    try {
        mFileSystemMaster.getFileInfo(new AlluxioURI("/mnt/local"));
        Assert.fail("getFileInfo() for a non-existent URI (before mounting) should fail.");
    } catch (FileDoesNotExistException e) {
    // Expected case.
    }
    mFileSystemMaster.mount(new AlluxioURI("/mnt/local"), ufsMount, MountOptions.defaults());
    // Alluxio mount point should exist after mounting.
    Assert.assertNotNull(mFileSystemMaster.getFileInfo(new AlluxioURI("/mnt/local")));
    mFileSystemMaster.unmount(new AlluxioURI("/mnt/local"));
    // Alluxio mount point should not exist after unmounting.
    try {
        mFileSystemMaster.getFileInfo(new AlluxioURI("/mnt/local"));
        Assert.fail("getFileInfo() for a non-existent URI (before mounting) should fail.");
    } catch (FileDoesNotExistException e) {
    // Expected case.
    }
}