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

Example 21 with FileDoesNotExistException

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

the class LineageMasterTest method createLineageWithNonExistingFile.

/**
   * Tests that an exception is thrown when trying to create a lineage for a non-existing file via
   * the {@link LineageMaster#createLineage(List, List, Job)} method.
   */
@Test
public void createLineageWithNonExistingFile() throws Exception {
    AlluxioURI missingInput = new AlluxioURI("/test1");
    Mockito.when(mFileSystemMaster.getFileId(missingInput)).thenReturn(IdUtils.INVALID_FILE_ID);
    mLineageMaster.start(true);
    // try catch block used because ExpectedExceptionRule conflicts with Powermock
    try {
        mLineageMaster.createLineage(Lists.newArrayList(missingInput), Lists.newArrayList(new AlluxioURI("/test2")), mJob);
        Assert.fail();
    } catch (FileDoesNotExistException e) {
        Assert.assertEquals(ExceptionMessage.LINEAGE_INPUT_FILE_NOT_EXIST.getMessage("/test1"), e.getMessage());
    }
}

Example 22 with FileDoesNotExistException

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

the class AlluxioFuseFileSystem method getattr.

/**
   * Retrieves file attributes.
   *
   * @param path The path on the FS of the file
   * @param stat FUSE data structure to fill with file attrs
   * @return 0 on success, negative value on error
   */
@Override
public int getattr(String path, FileStat stat) {
    final AlluxioURI turi = mPathResolverCache.getUnchecked(path);
    LOG.trace("getattr({}) [Alluxio: {}]", path, turi);
    try {
        if (!mFileSystem.exists(turi)) {
            return -ErrorCodes.ENOENT();
        }
        final URIStatus status = mFileSystem.getStatus(turi);
        stat.st_size.set(status.getLength());
        final long ctime_sec = status.getLastModificationTimeMs() / 1000;
        //keeps only the "residual" nanoseconds not caputred in
        // citme_sec
        final long ctime_nsec = (status.getLastModificationTimeMs() % 1000) * 1000;
        stat.st_ctim.tv_sec.set(ctime_sec);
        stat.st_ctim.tv_nsec.set(ctime_nsec);
        stat.st_mtim.tv_sec.set(ctime_sec);
        stat.st_mtim.tv_nsec.set(ctime_nsec);
        // TODO(andreareale): understand how to map FileInfo#getOwner()
        // and FileInfo#getGroup() to UIDs and GIDs of the node
        // where alluxio-fuse is mounted.
        // While this is not done, just use uid and gid of the user
        // running alluxio-fuse.
        stat.st_uid.set(UID_AND_GID[0]);
        stat.st_gid.set(UID_AND_GID[1]);
        final int mode;
        if (status.isFolder()) {
            mode = FileStat.S_IFDIR;
        } else {
            mode = FileStat.S_IFREG;
        }
        stat.st_mode.set(mode);
    } catch (InvalidPathException e) {
        LOG.debug("Invalid path {}", path, e);
        return -ErrorCodes.ENOENT();
    } catch (FileDoesNotExistException e) {
        LOG.debug("File does not exist {}", path, e);
        return -ErrorCodes.ENOENT();
    } 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 23 with FileDoesNotExistException

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

the class AlluxioFuseFileSystem method rmInternal.

/**
   * Convenience internal method to remove files or directories.
   *
   * @param path The path to remove
   * @param mustBeFile When true, returns an error when trying to
   *                   remove a directory
   * @return 0 on success, a negative value on error
   */
private int rmInternal(String path, boolean mustBeFile) {
    final AlluxioURI turi = mPathResolverCache.getUnchecked(path);
    try {
        if (!mFileSystem.exists(turi)) {
            LOG.error("File {} does not exist", turi);
            return -ErrorCodes.ENOENT();
        }
        final URIStatus status = mFileSystem.getStatus(turi);
        if (mustBeFile && status.isFolder()) {
            LOG.error("File {} is a directory", turi);
            return -ErrorCodes.EISDIR();
        }
        mFileSystem.delete(turi);
    } catch (FileDoesNotExistException e) {
        LOG.debug("File does not exist {}", path, e);
        return -ErrorCodes.ENOENT();
    } 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 24 with FileDoesNotExistException

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

the class AlluxioFuseFileSystem method readdir.

/**
   * Reads the contents of a directory.
   *
   * @param path The FS path of the directory
   * @param buff The FUSE buffer to fill
   * @param filter FUSE filter
   * @param offset Ignored in alluxio-fuse
   * @param fi FileInfo data structure kept by FUSE
   * @return 0 on success, a negative value on error
   */
@Override
public int readdir(String path, Pointer buff, FuseFillDir filter, @off_t long offset, FuseFileInfo fi) {
    final AlluxioURI turi = mPathResolverCache.getUnchecked(path);
    LOG.trace("readdir({}) [Alluxio: {}]", path, turi);
    try {
        if (!mFileSystem.exists(turi)) {
            return -ErrorCodes.ENOENT();
        }
        final URIStatus status = mFileSystem.getStatus(turi);
        if (!status.isFolder()) {
            return -ErrorCodes.ENOTDIR();
        }
        final List<URIStatus> ls = mFileSystem.listStatus(turi);
        // standard . and .. entries
        filter.apply(buff, ".", null, 0);
        filter.apply(buff, "..", null, 0);
        for (final URIStatus file : ls) {
            filter.apply(buff, file.getName(), null, 0);
        }
    } catch (FileDoesNotExistException e) {
        LOG.debug("File does not exist {}", path, e);
        return -ErrorCodes.ENOENT();
    } catch (InvalidPathException e) {
        LOG.debug("Invalid path {}", path, e);
        return -ErrorCodes.ENOENT();
    } 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 25 with FileDoesNotExistException

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

the class AlluxioFuseFileSystem method rename.

/**
   * Renames a path.
   *
   * @param oldPath the source path in the FS
   * @param newPath the destination path in the FS
   * @return 0 on success, a negative value on error
   */
@Override
public int rename(String oldPath, String newPath) {
    final AlluxioURI oldUri = mPathResolverCache.getUnchecked(oldPath);
    final AlluxioURI newUri = mPathResolverCache.getUnchecked(newPath);
    LOG.trace("rename({}, {}) [Alluxio: {}, {}]", oldPath, newPath, oldUri, newUri);
    try {
        if (!mFileSystem.exists(oldUri)) {
            LOG.error("File {} does not exist", oldPath);
            return -ErrorCodes.ENOENT();
        } else {
            mFileSystem.rename(oldUri, newUri);
        }
    } catch (FileDoesNotExistException e) {
        LOG.debug("File {} does not exist", oldPath);
        return -ErrorCodes.ENOENT();
    } catch (IOException e) {
        LOG.error("IOException while moving {} to {}", oldPath, newPath, e);
        return -ErrorCodes.EIO();
    } catch (AlluxioException e) {
        LOG.error("Exception while moving {} to {}", oldPath, newPath, e);
        return -ErrorCodes.EFAULT();
    } catch (Throwable e) {
        LOG.error("Unexpected exception on mv {} {}", oldPath, newPath, e);
        return -ErrorCodes.EFAULT();
    }
    return 0;
}