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

Example 61 with FileDoesNotExistException

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

the class FileSystemMasterTest method renameToNonExistentParent.

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

Example 62 with FileDoesNotExistException

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

the class CpCommand method copy.

/**
 * Copies a file or a directory in the Alluxio filesystem.
 *
 * @param srcPath the source {@link AlluxioURI} (could be a file or a directory)
 * @param dstPath the {@link AlluxioURI} of the destination path in the Alluxio filesystem
 * @param recursive indicates whether directories should be copied recursively
 */
private void copy(AlluxioURI srcPath, AlluxioURI dstPath, boolean recursive) throws AlluxioException, IOException {
    URIStatus srcStatus = mFileSystem.getStatus(srcPath);
    URIStatus dstStatus = null;
    try {
        dstStatus = mFileSystem.getStatus(dstPath);
    } catch (FileDoesNotExistException e) {
    // if the destination does not exist, it will be created
    }
    if (!srcStatus.isFolder()) {
        if (dstStatus != null && dstStatus.isFolder()) {
            dstPath = new AlluxioURI(PathUtils.concatPath(dstPath.getPath(), srcPath.getName()));
        }
        copyFile(srcPath, dstPath);
    } else {
        if (!recursive) {
            throw new IOException(srcPath.getPath() + " is a directory," + " to copy it please use \"cp -R/-r/--recursive <src> <dst>\"");
        }
        List<URIStatus> statuses;
        statuses = mFileSystem.listStatus(srcPath);
        if (dstStatus != null) {
            if (!dstStatus.isFolder()) {
                throw new InvalidPathException(ExceptionMessage.DESTINATION_CANNOT_BE_FILE.getMessage());
            }
            // subdirectory of the destination
            if (srcStatus.isFolder()) {
                dstPath = new AlluxioURI(PathUtils.concatPath(dstPath.getPath(), srcPath.getName()));
                mFileSystem.createDirectory(dstPath);
                System.out.println("Created directory: " + dstPath);
            }
        }
        if (dstStatus == null) {
            mFileSystem.createDirectory(dstPath);
            System.out.println("Created directory: " + dstPath);
        }
        preserveAttributes(srcPath, dstPath);
        List<String> errorMessages = new ArrayList<>();
        for (URIStatus status : statuses) {
            try {
                copy(new AlluxioURI(srcPath.getScheme(), srcPath.getAuthority(), status.getPath()), new AlluxioURI(dstPath.getScheme(), dstPath.getAuthority(), PathUtils.concatPath(dstPath.getPath(), status.getName())), recursive);
            } catch (IOException e) {
                errorMessages.add(e.getMessage());
            }
        }
        if (errorMessages.size() != 0) {
            throw new IOException(Joiner.on('\n').join(errorMessages));
        }
    }
}

Example 63 with FileDoesNotExistException

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

the class CpCommand method copyWildcard.

/**
 * Copies a list of files or directories specified by srcPaths to the destination specified by
 * dstPath. This method is used when the original source path contains wildcards.
 *
 * @param srcPaths a list of files or directories in the Alluxio filesystem
 * @param dstPath the destination in the Alluxio filesystem
 * @param recursive indicates whether directories should be copied recursively
 */
private void copyWildcard(List<AlluxioURI> srcPaths, AlluxioURI dstPath, boolean recursive) throws AlluxioException, IOException {
    URIStatus dstStatus = null;
    try {
        dstStatus = mFileSystem.getStatus(dstPath);
    } catch (FileDoesNotExistException e) {
    // if the destination does not exist, it will be created
    }
    if (dstStatus != null && !dstStatus.isFolder()) {
        throw new InvalidPathException(ExceptionMessage.DESTINATION_CANNOT_BE_FILE.getMessage());
    }
    if (dstStatus == null) {
        mFileSystem.createDirectory(dstPath);
        System.out.println("Created directory: " + dstPath);
    }
    List<String> errorMessages = new ArrayList<>();
    for (AlluxioURI srcPath : srcPaths) {
        try {
            copy(srcPath, new AlluxioURI(dstPath.getScheme(), dstPath.getAuthority(), PathUtils.concatPath(dstPath.getPath(), srcPath.getName())), recursive);
        } catch (AlluxioException | IOException e) {
            errorMessages.add(e.getMessage());
        }
    }
    if (errorMessages.size() != 0) {
        throw new IOException(Joiner.on('\n').join(errorMessages));
    }
}

Example 64 with FileDoesNotExistException

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

the class CatCommand method runPlainPath.

@Override
protected void runPlainPath(AlluxioURI path, CommandLine cl) throws AlluxioException, IOException {
    URIStatus status = mFileSystem.getStatus(path);
    if (status.isFolder()) {
        throw new FileDoesNotExistException(ExceptionMessage.PATH_MUST_BE_FILE.getMessage(path));
    }
    byte[] buf = new byte[Constants.MB];
    try (FileInStream is = mFileSystem.openFile(path)) {
        int read = is.read(buf);
        while (read != -1) {
            System.out.write(buf, 0, read);
            read = is.read(buf);
        }
    }
}

Example 65 with FileDoesNotExistException

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

the class ChecksumCommand method runPlainPath.

@Override
protected void runPlainPath(AlluxioURI plainPath, CommandLine cl) throws AlluxioException, IOException {
    URIStatus status = mFileSystem.getStatus(plainPath);
    if (status.isFolder()) {
        throw new FileDoesNotExistException(ExceptionMessage.PATH_MUST_BE_FILE.getMessage(plainPath.getPath()));
    }
    String str = calculateChecksum(plainPath);
    System.out.println("md5sum: " + str + "\n");
}