Examples with FileAlreadyExistsException org.apache.hadoop.fs.FileAlreadyExistsException used on opensource projects

Example 11 with FileAlreadyExistsException

use of org.apache.hadoop.fs.FileAlreadyExistsException in project hadoop by apache.

the class CuratorService method operationFailure.

/**
   * Create an IOE when an operation fails
   * @param path path of operation
   * @param operation operation attempted
   * @param exception caught the exception caught
   * @return an IOE to throw that contains the path and operation details.
   */
protected IOException operationFailure(String path, String operation, Exception exception, List<ACL> acls) {
    IOException ioe;
    String aclList = "[" + RegistrySecurity.aclsToString(acls) + "]";
    if (exception instanceof KeeperException.NoNodeException) {
        ioe = new PathNotFoundException(path);
    } else if (exception instanceof KeeperException.NodeExistsException) {
        ioe = new FileAlreadyExistsException(path);
    } else if (exception instanceof KeeperException.NoAuthException) {
        ioe = new NoPathPermissionsException(path, "Not authorized to access path; ACLs: " + aclList);
    } else if (exception instanceof KeeperException.NotEmptyException) {
        ioe = new PathIsNotEmptyDirectoryException(path);
    } else if (exception instanceof KeeperException.AuthFailedException) {
        ioe = new AuthenticationFailedException(path, "Authentication Failed: " + exception + "; " + securityConnectionDiagnostics, exception);
    } else if (exception instanceof KeeperException.NoChildrenForEphemeralsException) {
        ioe = new NoChildrenForEphemeralsException(path, "Cannot create a path under an ephemeral node: " + exception, exception);
    } else if (exception instanceof KeeperException.InvalidACLException) {
        // this is a security exception of a kind
        // include the ACLs to help the diagnostics
        StringBuilder builder = new StringBuilder();
        builder.append("Path access failure ").append(aclList);
        builder.append(" ");
        builder.append(securityConnectionDiagnostics);
        ioe = new NoPathPermissionsException(path, builder.toString());
    } else {
        ioe = new RegistryIOException(path, "Failure of " + operation + " on " + path + ": " + exception.toString(), exception);
    }
    if (ioe.getCause() == null) {
        ioe.initCause(exception);
    }
    return ioe;
}

Example 12 with FileAlreadyExistsException

use of org.apache.hadoop.fs.FileAlreadyExistsException in project hadoop by apache.

the class HistoryFileManager method makeDoneSubdir.

private void makeDoneSubdir(Path path) throws IOException {
    try {
        doneDirFc.getFileStatus(path);
        existingDoneSubdirs.add(path);
    } catch (FileNotFoundException fnfE) {
        try {
            FsPermission fsp = new FsPermission(JobHistoryUtils.HISTORY_DONE_DIR_PERMISSION);
            doneDirFc.mkdir(path, fsp, true);
            FileStatus fsStatus = doneDirFc.getFileStatus(path);
            LOG.info("Perms after creating " + fsStatus.getPermission().toShort() + ", Expected: " + fsp.toShort());
            if (fsStatus.getPermission().toShort() != fsp.toShort()) {
                LOG.info("Explicitly setting permissions to : " + fsp.toShort() + ", " + fsp);
                doneDirFc.setPermission(path, fsp);
            }
            existingDoneSubdirs.add(path);
        } catch (FileAlreadyExistsException faeE) {
        // Nothing to do.
        }
    }
}

Example 13 with FileAlreadyExistsException

use of org.apache.hadoop.fs.FileAlreadyExistsException in project hadoop by apache.

the class HistoryServerFileSystemStateStoreService method storeTokenMasterKey.

@Override
public void storeTokenMasterKey(DelegationKey key) throws IOException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("Storing master key " + key.getKeyId());
    }
    Path keyPath = new Path(tokenKeysStatePath, TOKEN_MASTER_KEY_FILE_PREFIX + key.getKeyId());
    if (fs.exists(keyPath)) {
        throw new FileAlreadyExistsException(keyPath + " already exists");
    }
    ByteArrayOutputStream memStream = new ByteArrayOutputStream();
    DataOutputStream dataStream = new DataOutputStream(memStream);
    try {
        key.write(dataStream);
        dataStream.close();
        dataStream = null;
    } finally {
        IOUtils.cleanup(LOG, dataStream);
    }
    createNewFile(keyPath, memStream.toByteArray());
}

Example 14 with FileAlreadyExistsException

use of org.apache.hadoop.fs.FileAlreadyExistsException in project hadoop by apache.

the class S3AFileSystem method innerMkdirs.

/**
   *
   * Make the given path and all non-existent parents into
   * directories.
   * See {@link #mkdirs(Path, FsPermission)}
   * @param f path to create
   * @param permission to apply to f
   * @return true if a directory was created
   * @throws FileAlreadyExistsException there is a file at the path specified
   * @throws IOException other IO problems
   * @throws AmazonClientException on failures inside the AWS SDK
   */
// TODO: If we have created an empty file at /foo/bar and we then call
// mkdirs for /foo/bar/baz/roo what happens to the empty file /foo/bar/?
private boolean innerMkdirs(Path f, FsPermission permission) throws IOException, FileAlreadyExistsException, AmazonClientException {
    LOG.debug("Making directory: {}", f);
    incrementStatistic(INVOCATION_MKDIRS);
    FileStatus fileStatus;
    try {
        fileStatus = getFileStatus(f);
        if (fileStatus.isDirectory()) {
            return true;
        } else {
            throw new FileAlreadyExistsException("Path is a file: " + f);
        }
    } catch (FileNotFoundException e) {
        Path fPart = f.getParent();
        do {
            try {
                fileStatus = getFileStatus(fPart);
                if (fileStatus.isDirectory()) {
                    break;
                }
                if (fileStatus.isFile()) {
                    throw new FileAlreadyExistsException(String.format("Can't make directory for path '%s' since it is a file.", fPart));
                }
            } catch (FileNotFoundException fnfe) {
                instrumentation.errorIgnored();
            }
            fPart = fPart.getParent();
        } while (fPart != null);
        String key = pathToKey(f);
        createFakeDirectory(key);
        return true;
    }
}

Example 15 with FileAlreadyExistsException

use of org.apache.hadoop.fs.FileAlreadyExistsException in project hadoop by apache.

the class NativeS3FileSystem method create.

@Override
public FSDataOutputStream create(Path f, FsPermission permission, boolean overwrite, int bufferSize, short replication, long blockSize, Progressable progress) throws IOException {
    if (exists(f) && !overwrite) {
        throw new FileAlreadyExistsException("File already exists: " + f);
    }
    if (LOG.isDebugEnabled()) {
        LOG.debug("Creating new file '" + f + "' in S3");
    }
    Path absolutePath = makeAbsolute(f);
    String key = pathToKey(absolutePath);
    return new FSDataOutputStream(new NativeS3FsOutputStream(getConf(), store, key, progress, bufferSize), statistics);
}