Examples with FileAlreadyExistsException java.nio.file.FileAlreadyExistsException used on opensource projects

Example 6 with FileAlreadyExistsException

use of java.nio.file.FileAlreadyExistsException in project neo4j by neo4j.

the class DumpCommandTest method shouldGiveAClearErrorIfTheArchiveAlreadyExists.

@Test
public void shouldGiveAClearErrorIfTheArchiveAlreadyExists() throws Exception {
    doThrow(new FileAlreadyExistsException("the-archive-path")).when(dumper).dump(any(), any(), any());
    try {
        execute("foo.db");
        fail("expected exception");
    } catch (CommandFailed e) {
        assertThat(e.getMessage(), equalTo("archive already exists: the-archive-path"));
    }
}

Example 7 with FileAlreadyExistsException

use of java.nio.file.FileAlreadyExistsException in project neo4j by neo4j.

the class DumperTest method shouldGiveAClearErrorIfTheArchiveAlreadyExists.

@Test
public void shouldGiveAClearErrorIfTheArchiveAlreadyExists() throws IOException {
    Path directory = testDirectory.directory("a-directory").toPath();
    Path archive = testDirectory.file("the-archive.dump").toPath();
    Files.write(archive, new byte[0]);
    try {
        new Dumper().dump(directory, archive, Predicates.alwaysFalse());
        fail("Expected an exception");
    } catch (FileAlreadyExistsException e) {
        assertEquals(archive.toString(), e.getMessage());
    }
}

Example 8 with FileAlreadyExistsException

use of java.nio.file.FileAlreadyExistsException in project neo4j by neo4j.

the class EphemeralFileSystemAbstraction method renameFile.

@Override
public void renameFile(File from, File to, CopyOption... copyOptions) throws IOException {
    from = canonicalFile(from);
    to = canonicalFile(to);
    if (!files.containsKey(from)) {
        throw new NoSuchFileException("'" + from + "' doesn't exist");
    }
    boolean replaceExisting = false;
    for (CopyOption copyOption : copyOptions) {
        replaceExisting |= copyOption == REPLACE_EXISTING;
    }
    if (files.containsKey(to) && !replaceExisting) {
        throw new FileAlreadyExistsException("'" + to + "' already exists");
    }
    if (!isDirectory(to.getParentFile())) {
        throw new NoSuchFileException("Target directory[" + to.getParent() + "] does not exists");
    }
    files.put(to, files.remove(from));
}

Example 9 with FileAlreadyExistsException

use of java.nio.file.FileAlreadyExistsException in project presto by prestodb.

the class ShardRecoveryManager method restoreFromBackup.

@VisibleForTesting
void restoreFromBackup(UUID shardUuid, OptionalLong shardSize) {
    File storageFile = storageService.getStorageFile(shardUuid);
    if (!backupStore.get().shardExists(shardUuid)) {
        stats.incrementShardRecoveryBackupNotFound();
        throw new PrestoException(RAPTOR_RECOVERY_ERROR, "No backup file found for shard: " + shardUuid);
    }
    if (storageFile.exists()) {
        if (!shardSize.isPresent() || (storageFile.length() == shardSize.getAsLong())) {
            return;
        }
        log.warn("Local shard file is corrupt. Deleting local file: %s", storageFile);
        storageFile.delete();
    }
    // create a temporary file in the staging directory
    File stagingFile = temporarySuffix(storageService.getStagingFile(shardUuid));
    storageService.createParents(stagingFile);
    // copy to temporary file
    log.info("Copying shard %s from backup...", shardUuid);
    long start = System.nanoTime();
    try {
        backupStore.get().restoreShard(shardUuid, stagingFile);
    } catch (PrestoException e) {
        stats.incrementShardRecoveryFailure();
        stagingFile.delete();
        throw e;
    }
    Duration duration = nanosSince(start);
    DataSize size = succinctBytes(stagingFile.length());
    DataSize rate = dataRate(size, duration).convertToMostSuccinctDataSize();
    stats.addShardRecoveryDataRate(rate, size, duration);
    log.info("Copied shard %s from backup in %s (%s at %s/s)", shardUuid, duration, size, rate);
    // move to final location
    storageService.createParents(storageFile);
    try {
        Files.move(stagingFile.toPath(), storageFile.toPath(), ATOMIC_MOVE);
    } catch (FileAlreadyExistsException e) {
    // someone else already created it (should not happen, but safe to ignore)
    } catch (IOException e) {
        stats.incrementShardRecoveryFailure();
        throw new PrestoException(RAPTOR_RECOVERY_ERROR, "Failed to move shard: " + shardUuid, e);
    } finally {
        stagingFile.delete();
    }
    if (!storageFile.exists() || (shardSize.isPresent() && (storageFile.length() != shardSize.getAsLong()))) {
        stats.incrementShardRecoveryFailure();
        log.info("Files do not match after recovery. Deleting local file: " + shardUuid);
        storageFile.delete();
        throw new PrestoException(RAPTOR_RECOVERY_ERROR, "File not recovered correctly: " + shardUuid);
    }
    stats.incrementShardRecoverySuccess();
}

Example 10 with FileAlreadyExistsException

use of java.nio.file.FileAlreadyExistsException in project flink by apache.

the class LocalFileSystem method create.

@Override
public FSDataOutputStream create(final Path filePath, final WriteMode overwrite) throws IOException {
    checkNotNull(filePath, "filePath");
    if (exists(filePath) && overwrite == WriteMode.NO_OVERWRITE) {
        throw new FileAlreadyExistsException("File already exists: " + filePath);
    }
    final Path parent = filePath.getParent();
    if (parent != null && !mkdirs(parent)) {
        throw new IOException("Mkdirs failed to create " + parent);
    }
    final File file = pathToFile(filePath);
    return new LocalDataOutputStream(file);
}