fastdfs-client is a FastDFS java client based on Netty 4 . support multiple tracker server pool and active tracker server health check .
// FastdfsClient is threadsafe and use connection pool.
FastdfsClient client = FastdfsClient.newBuilder()
.connectTimeout(3000)
.readTimeout(100)
.healthCheck(3, 2, 3000, 10000)
.tracker("192.168.1.2", 22222)
.build();
// upload file
CompletableFuture<FileId> promise = client.upload(new File("/tmp/test.dmg"));
FileId fileId = promise.get();
// do something.
// download file
OutputStream out = ...
CompletableFuture<Void> promise = client.download(fileId, out);
// promise.whenComplete(...);
// delete file
CompletableFuture<Void> promise = client.delete(fileId);
// promise.whenComplete(...);
// get file info
CompletableFuture<FileInfo> promise = client.infoGet(fileId);
FileInfo fileInfo = promise.get();
// do something.
// set file metadata
FileMetadata metadata = FileMetadata.newBuilder().put("test", "test1").build();
CompletableFuture<Void> promise = client.metadataSet(fileId, metadata);
// do something.
// get file metadata
CompletableFuture<FileMetadata> promise = client.metadataGet(fileId);
FileMetadata metadata = promise.get();
// do something.
client.close();