Example usage for org.apache.hadoop.io EnumSetWritable EnumSetWritable

Introduction

In this page you can find the example usage for org.apache.hadoop.io EnumSetWritable EnumSetWritable.

Prototype

public EnumSetWritable(EnumSet<E> value) 

Source Link

Document

Construct a new EnumSetWritable.

Usage

From source file:com.mellanox.r4h.DFSOutputStream.java

License:Apache License

static DFSOutputStream newStreamForCreate(DFSClient dfsClient, String src, FsPermission masked,
        EnumSet<CreateFlag> flag, boolean createParent, short replication, long blockSize,
        Progressable progress, int buffersize, DataChecksum checksum, String[] favoredNodes)
        throws IOException {
    TraceScope scope = dfsClient.getPathTraceScope("newStreamForCreate", src);
    try {//w w  w. ja va 2  s.  com
        HdfsFileStatus stat = null;

        // Retry the create if we get a RetryStartFileException up to a maximum
        // number of times
        boolean shouldRetry = true;
        int retryCount = CREATE_RETRY_COUNT;
        while (shouldRetry) {
            shouldRetry = false;
            try {
                stat = dfsClient.namenode.create(src, masked, dfsClient.clientName,
                        new EnumSetWritable<CreateFlag>(flag), createParent, replication, blockSize,
                        SUPPORTED_CRYPTO_VERSIONS);
                break;
            } catch (RemoteException re) {
                IOException e = re.unwrapRemoteException(AccessControlException.class,
                        DSQuotaExceededException.class, FileAlreadyExistsException.class,
                        FileNotFoundException.class, ParentNotDirectoryException.class,
                        NSQuotaExceededException.class, RetryStartFileException.class, SafeModeException.class,
                        UnresolvedPathException.class, SnapshotAccessControlException.class,
                        UnknownCryptoProtocolVersionException.class);
                if (e instanceof RetryStartFileException) {
                    if (retryCount > 0) {
                        shouldRetry = true;
                        retryCount--;
                    } else {
                        throw new IOException("Too many retries because of encryption" + " zone operations", e);
                    }
                } else {
                    throw e;
                }
            }
        }
        Preconditions.checkNotNull(stat, "HdfsFileStatus should not be null!");
        final DFSOutputStream out = new DFSOutputStream(dfsClient, src, stat, flag, progress, checksum,
                favoredNodes);
        out.start();
        return out;
    } finally {
        scope.close();
    }
}

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