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[InLong-9476][Sort] Add custom function for data time transform
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...-sort/sort-core/src/main/java/org/apache/inlong/sort/function/RoundTimestampFunction.java
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.inlong.sort.function; | ||
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| import org.apache.flink.table.functions.ScalarFunction; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import java.time.Instant; | ||
| import java.time.LocalDateTime; | ||
| import java.time.ZoneId; | ||
| import java.time.format.DateTimeFormatter; | ||
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| /** | ||
| * Round timestamp and output formatted timestamp. | ||
| */ | ||
| public class RoundTimestampFunction extends ScalarFunction { | ||
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| private static final long serialVersionUID = 1L; | ||
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| public static final Logger LOG = LoggerFactory.getLogger(RoundTimestampFunction.class); | ||
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| /** | ||
| * Round timestamp and output formatted timestamp. | ||
| * For example, if the input timestamp is 1702610371(s), the roundTime is 600(s), and the format is "yyyyMMddHHmm", | ||
| * the formatted timestamp is "2023121510". | ||
| * | ||
| * @param timestamp The input timestamp in seconds. | ||
| * @param roundTime The round time in seconds. | ||
| * @param format The format of the output timestamp. | ||
| * @return The formatted timestamp. | ||
| */ | ||
| public static Long eval(Long timestamp, Long roundTime, String format) { | ||
| try { | ||
| LocalDateTime dateTime = LocalDateTime.ofInstant( | ||
| Instant.ofEpochSecond(timestamp - timestamp % roundTime), | ||
| ZoneId.systemDefault() | ||
| ); | ||
| DateTimeFormatter formatter = DateTimeFormatter.ofPattern(format); | ||
| String formattedDateTime = dateTime.format(formatter); | ||
| return Long.parseLong(formattedDateTime); | ||
| } catch (Exception e) { | ||
| LOG.error("get formatted timestamp error, timestamp: {}, roundTime: {},format: {}", | ||
| timestamp, roundTime, format, e); | ||
| return null; | ||
| } | ||
| } | ||
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| } |
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79 changes: 79 additions & 0 deletions
79
...t/sort-core/src/test/java/org/apache/inlong/sort/function/RoundTimestampFunctionTest.java
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| package org.apache.inlong.sort.function; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import org.apache.flink.api.common.typeinfo.BasicTypeInfo; | ||
| import org.apache.flink.api.common.typeinfo.TypeInformation; | ||
| import org.apache.flink.api.java.typeutils.RowTypeInfo; | ||
| import org.apache.flink.streaming.api.datastream.DataStream; | ||
| import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; | ||
| import org.apache.flink.table.api.EnvironmentSettings; | ||
| import org.apache.flink.table.api.Table; | ||
| import org.apache.flink.table.api.bridge.java.StreamTableEnvironment; | ||
| import org.apache.flink.test.util.AbstractTestBase; | ||
| import org.apache.flink.types.Row; | ||
| import org.apache.flink.util.CloseableIterator; | ||
| import org.junit.Assert; | ||
| import org.junit.Test; | ||
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| /** | ||
| * Test for {@link RoundTimestampFunction} | ||
| */ | ||
| public class RoundTimestampFunctionTest extends AbstractTestBase { | ||
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| public static final long TEST_TIMESTAMP = 1702610371L; | ||
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| /** | ||
| * Test for round timestamp function | ||
| * | ||
| * @throws Exception The exception may throw when test round timestamp function | ||
| */ | ||
| @Test | ||
| public void testRoundTimestampFunction() throws Exception { | ||
| EnvironmentSettings settings = EnvironmentSettings | ||
| .newInstance() | ||
| .inStreamingMode() | ||
| .build(); | ||
| StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); | ||
| env.setParallelism(1); | ||
| env.enableCheckpointing(10000); | ||
| StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env, settings); | ||
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| // step 1. Register custom function of ROUND_TIMESTAMP | ||
| tableEnv.createTemporaryFunction("ROUND_TIMESTAMP", RoundTimestampFunction.class); | ||
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| // step 2. Generate test data and convert to DataStream | ||
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| List<Row> data = new ArrayList<>(); | ||
| data.add(Row.of(TEST_TIMESTAMP)); | ||
| TypeInformation<?>[] types = {BasicTypeInfo.LONG_TYPE_INFO}; | ||
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| String[] names = {"f1"}; | ||
| RowTypeInfo typeInfo = new RowTypeInfo(types, names); | ||
| DataStream<Row> dataStream = env.fromCollection(data).returns(typeInfo); | ||
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| String formattedTimestamp = "2023121510"; | ||
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| // step 3. Convert from DataStream to Table and execute the ROUND_TIMESTAMP function | ||
| Table tempView = tableEnv.fromDataStream(dataStream).as("f1"); | ||
| tableEnv.createTemporaryView("temp_view", tempView); | ||
| Table outputTable = tableEnv.sqlQuery( | ||
| "SELECT ROUND_TIMESTAMP(f1, 600, 'yyyyMMddmm') " + | ||
| "from temp_view"); | ||
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| // step 4. Get function execution result and parse it | ||
| DataStream<Row> resultSet = tableEnv.toAppendStream(outputTable, Row.class); | ||
| List<String> result = new ArrayList<>(); | ||
| for (CloseableIterator<Row> it = resultSet.executeAndCollect(); it.hasNext();) { | ||
| Row row = it.next(); | ||
| if (row != null) { | ||
| result.add(row.getField(0).toString()); | ||
| } | ||
| } | ||
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| Assert.assertEquals(result.size(), 1); | ||
| Assert.assertEquals(result.get(0), formattedTimestamp); | ||
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| } | ||
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| } |