GPU Instancing GPU Skin详解:TaoToken 统一 Key 接入 Cline 的 settings.json 配置骨架
2026/9/26 14:15:04
Apache Arrow Flight是基于Apache Arrow的高性能流式数据传输协议,专为大规模数据传输而设计Arrow的内存布局实现零拷贝数据传输,极大提升了数据传输效率Java、C++、Python、R等多种编程语言,提供统一的 API 接口// Flight Server 示例publicclassExampleFlightServer{publicstaticvoidmain(String[]args)throwsException{Locationlocation=Location.forGrpcInsecure("localhost",32010);try(ExampleFlightProducerproducer=newExampleFlightProducer()){try(FlightServerserver=FlightServer.builder().location(location).producer(producer).build()){server.start();System.out.println("Flight server started on "+location);server.waitUntilShutdown();}}}}// Flight Client 示例publicclassExampleFlightClient{publicstaticvoidmain(String[]args)throwsException{Locationlocation=Location.forGrpcInsecure("localhost",32010);try(FlightClientclient=FlightClient.builder().location(location).build()){// 执行 DoGet 操作Ticketticket=newTicket("example-data".getBytes());try(FlightStreamstream=client.getStream(ticket)){for(VectorSchemaRootroot:stream){System.out.println("Received batch with "+root.getRowCount()+" rows");}}}}}// 流式数据处理示例publicclassStreamProcessor{publicvoidprocessStream(FlightStreamstream){try(stream){for(VectorSchemaRootroot:stream){// 处理每个批次的数据processBatch(root);}}}privatevoidprocessBatch(VectorSchemaRootroot){introwCount=root.getRowCount();FieldVectorvector=root.getVector("column_name");for(inti=0;i<rowCount;i++){Objectvalue=vector.getObject(i);// 处理单行数据}}}// gRPC 服务定义示例@SingletonpublicclassFlightServiceImplextendsFlightServiceGrpc.FlightServiceImplBase{@OverridepublicvoidlistFlights(ListFlightsCallContextcontext,Criteriacriteria,StreamObserver<FlightInfo>observer){try{FlightInfoflightInfo=createFlightInfo(criteria);observer.onNext(flightInfo);observer.onCompleted();}catch(Exceptione){observer.onError(Status.INTERNAL.withDescription(e.getMessage()).asException());}}@OverridepublicvoiddoGet(CallContextcontext,Ticketticket,ServerStreamListenerlistener){try{// 创建数据流VectorSchemaRootroot=createSchemaRoot();listener.start(root);// 发送数据批次sendBatches(listener,root);}catch(Exceptione){listener.error(Status.INTERNAL.withDescription(e.getMessage()).asException());}finally{listener.completed();}}}// Schema 定义示例publicstaticSchemacreateExampleSchema(){returnnewSchema(Arrays.asList(newField("id",newInt64Type(),false),newField("name",newStringType(),true),newField("age",newInt32Type(),true),newField("salary",newFloat64Type(),true)));}// Schema 验证publicbooleanvalidateSchema(Schemaexpected,Schemaactual){if(!expected.equals(actual)){thrownewIllegalArgumentException("Schema mismatch");}returntrue;}publicclassFlightClientManager{privateFlightClientclient;publicvoidinitializeClient(Stringhost,intport)throwsException{Locationlocation=Location.forGrpcInsecure(host,port);this.client=FlightClient.builder().location(location).allocator(newRootAllocator()).build();}publicvoidconfigureAdvancedOptions(){// 配置超时时间client.setOption(FlightConstants.TRANSPORT_TIMEOUT_OPTION,Duration.ofSeconds(30));// 配置重试策略client.setOption(FlightConstants.MAX_RETRY_ATTEMPTS_OPTION,3);}publicvoidclose(){if(client!=null){client.close();}}}publicclassAuthenticatedFlightClient{publicFlightClientcreateAuthenticatedClient(Stringhost,intport,Stringtoken)throwsException{Locationlocation=Location.forGrpcTls(host,port);returnFlightClient.builder().location(location).allocator(newRootAllocator()).intercept(newHeaderAuthenticator(token)).build();}// 自定义认证拦截器privatestaticclassHeaderAuthenticatorimplementsCallOption{privatefinalStringtoken;publicHeaderAuthenticator(Stringtoken){this.token=token;}@Overridepublicvoidapply(CallCredentialscallCredentials){// 应用认证头}}}publicclassFlightStreamProcessor{publicvoidprocessStream(FlightClientclient,Ticketticket){try(FlightStreamstream=client.getStream(ticket)){// 处理流式数据stream.forEachRemaining(root->{processBatch(root);// 处理完批次后释放资源root.clear();});}catch(Exceptione){System.err.println("Error processing stream: "+e.getMessage());}}privatevoidprocessBatch(VectorSchemaRootroot){introwCount=root.getRowCount();Schemaschema=root.getSchema();// 遍历所有字段for(Fieldfield:schema.getFields()){FieldVectorvector=root.getVector(field.getName());processField(vector,rowCount);}}privatevoidprocessField(FieldVectorvector,introwCount){for(inti=0;i<rowCount;i++){Objectvalue=vector.getObject(i);// 处理字段值}}}publicclassGetDataOperation{publicvoiddoGetExample(FlightClientclient,StringdatasetPath){try{// 创建描述符FlightDescriptordescriptor=FlightDescriptor.path(datasetPath);// 获取 FlightInfoFlightInfoinfo=client.getInfo(descriptor);// 从 Ticket 获取数据流for(FlightEndpointendpoint:info.getEndpoints()){for(Ticketticket:endpoint.getTickets()){try(FlightStreamstream=client.getStream(ticket)){// 处理数据流processStream(stream);}}}}catch(Exceptione){System.err.println("DoGet operation failed: "+e.getMessage());}}privatevoidprocessStream(FlightStreamstream){for(VectorSchemaRootroot:stream){// 处理每个批次System.out.println("Processing batch with "+root.getRowCount()+" rows");}}}publicclassPutDataOperation{publicvoiddoPutExample(FlightClientclient,StringdatasetPath,Iterator<VectorSchemaRoot>dataIterator){FlightDescriptordescriptor=FlightDescriptor.path(datasetPath);try(FlightClient.PutResultresult=client.doPut(descriptor)){// 发送 SchemaVectorSchemaRootfirstBatch=dataIterator.next();result.putNext(firstBatch);// 发送剩余数据while(dataIterator.hasNext()){VectorSchemaRootbatch=dataIterator.next();result.putNext(batch);}// 完成传输result.completed();}catch(Exceptione){System.err.println("DoPut operation failed: "+e.getMessage());}}publicvoidputWithMetadata(FlightClientclient,StringdatasetPath,VectorSchemaRootroot,Map<String,String>metadata){try(FlightClient.PutResultresult=client.doPut(FlightDescriptor.path(datasetPath))){// 添加元数据result.putNext(root);result.putMetadata(metadata);result.completed();}}}publicclassFlightServerConfig{publicFlightServercreateServer(intport)throwsException{Locationlocation=Location.forGrpcInsecure("0.0.0.0",port);returnFlightServer.builder().location(location).producer(createFlightProducer()).middleware(createMiddleware()).build();}privateFlightProducercreateFlightProducer(){returnnewExampleFlightProducer();}privateMap<String,?extendsServerMiddleware.Factory>createMiddleware(){Map<String,ServerMiddleware.Factory>middleware=newHashMap<>();middleware.put("authentication",newAuthenticationMiddleware.Factory());middleware.put("logging",newLoggingMiddleware.Factory());returnmiddleware;}}publicclassAuthenticationMiddlewareimplementsServerMiddleware{@OverridepublicvoidonBeforeSendingHeaders(CallHeadersheaders){// 在发送响应头之前执行}@OverridepublicvoidonCallCompleted(CallStatusstatus){// 在调用完成后执行}publicstaticclass