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

Example 46 with AlluxioException

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

the class AbstractFileSystem method getFileStatus.

/**
   * {@inheritDoc}
   *
   * If the file does not exist in Alluxio, query it from HDFS.
   */
@Override
public FileStatus getFileStatus(Path path) throws IOException {
    LOG.debug("getFileStatus({})", path);
    if (mStatistics != null) {
        mStatistics.incrementReadOps(1);
    }
    AlluxioURI uri = new AlluxioURI(HadoopUtils.getPathWithoutScheme(path));
    URIStatus fileStatus;
    try {
        fileStatus = mFileSystem.getStatus(uri);
    } catch (FileDoesNotExistException e) {
        throw new FileNotFoundException(e.getMessage());
    } catch (AlluxioException e) {
        throw new IOException(e);
    }
    return new FileStatus(fileStatus.getLength(), fileStatus.isFolder(), BLOCK_REPLICATION_CONSTANT, fileStatus.getBlockSizeBytes(), fileStatus.getLastModificationTimeMs(), fileStatus.getCreationTimeMs(), new FsPermission((short) fileStatus.getMode()), fileStatus.getOwner(), fileStatus.getGroup(), new Path(mAlluxioHeader + uri));
}

Example 47 with AlluxioException

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

the class AbstractFileSystem method mkdirs.

/**
   * Attempts to create a folder with the specified path. Parent directories will be created.
   *
   * @param path path to create
   * @param permission permissions to grant the created folder
   * @return true if the indicated folder is created successfully or already exists
   * @throws IOException if the folder cannot be created
   */
@Override
public boolean mkdirs(Path path, FsPermission permission) throws IOException {
    LOG.debug("mkdirs({}, {})", path, permission);
    if (mStatistics != null) {
        mStatistics.incrementWriteOps(1);
    }
    AlluxioURI uri = new AlluxioURI(HadoopUtils.getPathWithoutScheme(path));
    CreateDirectoryOptions options = CreateDirectoryOptions.defaults().setRecursive(true).setAllowExists(true).setMode(new Mode(permission.toShort()));
    try {
        mFileSystem.createDirectory(uri, options);
        return true;
    } catch (AlluxioException e) {
        throw new IOException(e);
    }
}

Example 48 with AlluxioException

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

the class AlluxioFuseFileSystem method create.

/**
   * Creates and opens a new file.
   *
   * @param path The FS path of the file to open
   * @param mode mode flags
   * @param fi FileInfo data struct kept by FUSE
   * @return 0 on success. A negative value on error
   */
@Override
public int create(String path, @mode_t long mode, FuseFileInfo fi) {
    // mode is ignored in alluxio-fuse
    final AlluxioURI turi = mPathResolverCache.getUnchecked(path);
    // (see {@code man 2 open} for the structure of the flags bitfield)
    // File creation flags are the last two bits of flags
    final int flags = fi.flags.get();
    LOG.trace("create({}, {}) [Alluxio: {}]", path, Integer.toHexString(flags), turi);
    final int openFlag = flags & 3;
    if (openFlag != O_WRONLY.intValue()) {
        OpenFlags flag = OpenFlags.valueOf(openFlag);
        LOG.error("Passed a {} flag to create(). Files can only be created in O_WRONLY mode ({})", flag.toString(), path);
        return -ErrorCodes.EACCES();
    }
    try {
        synchronized (mOpenFiles) {
            if (mOpenFiles.size() >= MAX_OPEN_FILES) {
                LOG.error("Cannot open {}: too many open files (MAX_OPEN_FILES: {})", turi, MAX_OPEN_FILES);
                return -ErrorCodes.EMFILE();
            }
            final OpenFileEntry ofe = new OpenFileEntry(null, mFileSystem.createFile(turi));
            LOG.debug("Alluxio OutStream created for {}", path);
            mOpenFiles.put(mNextOpenFileId, ofe);
            fi.fh.set(mNextOpenFileId);
            // Assuming I will never wrap around (2^64 open files are quite a lot anyway)
            mNextOpenFileId += 1;
        }
        LOG.debug("{} created and opened in O_WRONLY mode", path);
    } catch (FileAlreadyExistsException e) {
        LOG.debug("File {} already exists", turi, e);
        return -ErrorCodes.EEXIST();
    } catch (IOException e) {
        LOG.error("IOException on {}", path, e);
        return -ErrorCodes.EIO();
    } catch (AlluxioException e) {
        LOG.error("AlluxioException on {}", path, e);
        return -ErrorCodes.EFAULT();
    } catch (Throwable e) {
        LOG.error("Unexpected exception on {}", path, e);
        return -ErrorCodes.EFAULT();
    }
    return 0;
}

Example 49 with AlluxioException

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

the class AlluxioFuseFileSystem method mkdir.

/**
   * Creates a new dir.
   *
   * @param path the path on the FS of the new dir
   * @param mode Dir creation flags (IGNORED)
   * @return 0 on success, a negative value on error
   */
@Override
public int mkdir(String path, @mode_t long mode) {
    final AlluxioURI turi = mPathResolverCache.getUnchecked(path);
    LOG.trace("mkdir({}) [Alluxio: {}]", path, turi);
    try {
        mFileSystem.createDirectory(turi);
    } catch (FileAlreadyExistsException e) {
        LOG.debug("Cannot make dir. {} already exists", path, e);
        return -ErrorCodes.EEXIST();
    } catch (InvalidPathException e) {
        LOG.debug("Cannot make dir. Invalid path: {}", path, e);
        return -ErrorCodes.ENOENT();
    } catch (IOException e) {
        LOG.error("Cannot make dir. IOException: {}", path, e);
        return -ErrorCodes.EIO();
    } catch (AlluxioException e) {
        LOG.error("Cannot make dir. {}", path, e);
        return -ErrorCodes.EFAULT();
    } catch (Throwable e) {
        LOG.error("Unexpected exception on {}", path, e);
        return -ErrorCodes.EFAULT();
    }
    return 0;
}

Example 50 with AlluxioException

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

the class BaseKeyValueStoreWriter method close.

@Override
public void close() throws IOException {
    if (mClosed) {
        return;
    }
    try {
        if (mCanceled) {
            mWriter.cancel();
        // TODO(binfan): cancel all other written partitions
        } else {
            completePartition();
            mMasterClient.completeStore(mStoreUri);
        }
    } catch (AlluxioException e) {
        throw new IOException(e);
    } finally {
        mMasterClient.close();
    }
    mClosed = true;
}