wgtmac commented on code in PR #1255: URL: https://github.com/apache/parquet-mr/pull/1255#discussion_r1457543562
########## parquet-hadoop/src/test/java/org/apache/parquet/hadoop/TestInterOpReadByteStreamSplit.java: ########## @@ -0,0 +1,114 @@ +/* + * 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. + */ + +package org.apache.parquet.hadoop; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertTrue; + +import java.io.IOException; +import okhttp3.OkHttpClient; +import okhttp3.Request; +import okhttp3.Response; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.fs.FSDataOutputStream; +import org.apache.hadoop.fs.FileSystem; +import org.apache.hadoop.fs.Path; +import org.apache.parquet.example.data.Group; +import org.apache.parquet.hadoop.example.GroupReadSupport; +import org.junit.Test; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class TestInterOpReadByteStreamSplit { + // The link includes a reference to a specific commit. To take a newer version - update this link. + private static final String PARQUET_TESTING_REPO = "https://github.com/apache/parquet-testing/raw/4cb3cff/data/";; + private static String PARQUET_TESTING_PATH = "target/parquet-testing/data"; + private static String FLOATS_FILE = "byte_stream_split.zstd.parquet"; + + private static final Logger LOG = LoggerFactory.getLogger(TestInterOpReadByteStreamSplit.class); + private OkHttpClient httpClient = new OkHttpClient(); + + @Test + public void testReadFloats() throws IOException { + Path rootPath = new Path(PARQUET_TESTING_PATH); + + // Test simple parquet file with lz4 raw compressed + Path floatsFile = downloadInterOpFiles(rootPath, FLOATS_FILE, httpClient); + final int expectRows = 300; + + try (ParquetReader<Group> reader = + ParquetReader.builder(new GroupReadSupport(), floatsFile).build()) { + for (int i = 0; i < expectRows; ++i) { + Group group = reader.read(); + assertTrue(group != null); + float fval = group.getFloat("f32", 0); + double dval = group.getDouble("f64", 0); + // Values are from the normal distribution + assertTrue(Math.abs(fval) < 4.0); + assertTrue(Math.abs(dval) < 4.0); + switch (i) { + case 0: + assertEquals(1.7640524f, fval, 0.0); + assertEquals(-1.3065268517353166, dval, 0.0); + break; + case 1: + assertEquals(0.4001572f, fval, 0.0); + assertEquals(1.658130679618188, dval, 0.0); + break; + case expectRows - 2: + assertEquals(-0.39944902f, fval, 0.0); + assertEquals(-0.9301565025243212, dval, 0.0); + break; + case expectRows - 1: + assertEquals(0.37005588f, fval, 0.0); + assertEquals(-0.17858909208732915, dval, 0.0); + break; + } + } + assertTrue(reader.read() == null); + } + } + + private Path downloadInterOpFiles(Path rootPath, String fileName, OkHttpClient httpClient) throws IOException { Review Comment: That would be deeply appreciated if you have the time to refactor. :) -- 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]
