private void onCreate(ChannelHandlerContext ctx) throws IOException, URISyntaxException {
writeContinueHeader(ctx);
final String nnId = params.namenodeId();
final int bufferSize = params.bufferSize();
final short replication = params.replication();
final long blockSize = params.blockSize();
final FsPermission permission = params.permission();
EnumSet<CreateFlag> flags =
params.overwrite()
? EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE)
: EnumSet.of(CreateFlag.CREATE);
final DFSClient dfsClient = newDfsClient(nnId, confForCreate);
OutputStream out =
dfsClient.createWrappedOutputStream(
dfsClient.create(
path, permission, flags, replication, blockSize, null, bufferSize, null),
null);
DefaultHttpResponse resp = new DefaultHttpResponse(HTTP_1_1, CREATED);
final URI uri = new URI(HDFS_URI_SCHEME, nnId, path, null, null);
resp.headers().set(LOCATION, uri.toString());
resp.headers().set(CONTENT_LENGTH, 0);
ctx.pipeline()
.replace(this, HdfsWriter.class.getSimpleName(), new HdfsWriter(dfsClient, out, resp));
}
