guiyanakuang commented on a change in pull request #967: URL: https://github.com/apache/orc/pull/967#discussion_r760725574
########## File path: java/tools/src/test/org/apache/orc/tools/convert/TestConvert.java ########## @@ -0,0 +1,89 @@ +/* + * 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.orc.tools.convert; + +import org.apache.commons.cli.ParseException; +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.hadoop.hive.ql.exec.vector.TimestampColumnVector; +import org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch; +import org.apache.orc.OrcFile; +import org.apache.orc.Reader; +import org.apache.orc.RecordReader; +import org.apache.orc.TypeDescription; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.Test; + +import java.io.IOException; +import java.sql.Timestamp; + +import static org.junit.jupiter.api.Assertions.assertEquals; +import static org.junit.jupiter.api.Assertions.assertTrue; + +public class TestConvert { + + Path workDir = new Path(System.getProperty("test.tmp.dir")); + Configuration conf; + FileSystem fs; + Path testFilePath; + + @BeforeEach + public void openFileSystem () throws Exception { + conf = new Configuration(); + fs = FileSystem.getLocal(conf); + fs.setWorkingDirectory(workDir); + testFilePath = new Path("TestConvert.testConvert.orc"); + fs.delete(testFilePath, false); + } + + @Test + public void testConvertCustomTimestampFromCsv() throws IOException, ParseException { + Path csvFile = new Path("test.csv"); + FSDataOutputStream stream = fs.create(csvFile, true); + String[] timeValues = new String[] {"0001-01-01 00:00:00.000", "2021-12-01 18:36:00.800"}; + stream.writeBytes(String.join("\n", timeValues)); + stream.close(); + String schema = "struct<d:timestamp>"; + String timestampFormat = "yyyy-MM-dd HH:mm:ss.SSS"; + TypeDescription readSchema = TypeDescription.fromString(schema); + + ConvertTool.main(conf, new String[]{"--schema", schema, "-o", testFilePath.toString(), + "-t", timestampFormat, csvFile.toString()}); + + assertTrue(fs.exists(testFilePath)); + + Reader reader = OrcFile.createReader(testFilePath, OrcFile.readerOptions(conf)); + VectorizedRowBatch batch = readSchema.createRowBatch(); + RecordReader rowIterator = reader.rows(reader.options().schema(readSchema)); + TimestampColumnVector tcv = (TimestampColumnVector) batch.cols[0]; + rowIterator.nextBatch(batch); + + while (rowIterator.nextBatch(batch)) { + for (int row = 0; row < batch.size; ++row) { + Timestamp timestamp = Timestamp.valueOf(timeValues[row]); + assertEquals(timestamp.getTime(), tcv.time[row]); + assertEquals(timestamp.getNanos(), tcv.nanos[row]); Review comment: ```java Timestamp timestamp1 = Timestamp.from(localDateTime.toInstant()); Timestamp timestamp2 = Timestamp.valueOf(localDateTime); ``` Both methods use the local time zone to calculate the timestamp, but the offset precision of the time zone of the previous method is seconds (for New York is 17762 s), and the precision of the latter method is hours (for New York is 18000 s, which is 5 hours) And the readings are interpreted by the latter precision (hour) -- 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: dev-unsubscr...@orc.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
