LantaoJin commented on code in PR #47: URL: https://github.com/apache/datafusion-java/pull/47#discussion_r3245581604
########## proto/json_read_options.proto: ########## @@ -0,0 +1,36 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +syntax = "proto3"; + +package datafusion_java; + +import "csv_read_options.proto"; Review Comment: fixed ########## core/src/main/java/org/apache/datafusion/SessionContext.java: ########## @@ -160,6 +160,52 @@ public DataFrame readCsv(String path, CsvReadOptions options) { return new DataFrame(dfHandle); } + public void registerJson(String name, String path) { + registerJson(name, path, new NdJsonReadOptions()); + } + + /** + * Register a newline-delimited JSON file (or directory of NDJSON files) as a table with the + * supplied {@link NdJsonReadOptions}. + * + * @throws RuntimeException if registration fails (path not found, schema inference error, etc.). + */ + public void registerJson(String name, String path, NdJsonReadOptions options) { + if (nativeHandle == 0) { + throw new IllegalStateException("SessionContext is closed"); + } + registerJsonWithOptions( + nativeHandle, + name, + path, + options.toBytes(), + options.schema() != null ? serializeSchemaIpc(options.schema()) : null); + } + + /** Read a newline-delimited JSON file as a {@link DataFrame} without registering it. */ + public DataFrame readJson(String path) { + return readJson(path, new NdJsonReadOptions()); + } + + /** + * Read a newline-delimited JSON file as a {@link DataFrame} with the supplied {@link + * NdJsonReadOptions}. + * + * @throws RuntimeException if the read fails. + */ + public DataFrame readJson(String path, NdJsonReadOptions options) { Review Comment: done -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
