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[INLONG-11154][SDK] Transform SQL supports TIMESTAMP function
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...sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/TimestampFunction.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.sdk.transform.process.function; | ||
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| import org.apache.inlong.sdk.transform.decode.SourceData; | ||
| import org.apache.inlong.sdk.transform.process.Context; | ||
| import org.apache.inlong.sdk.transform.process.operator.OperatorTools; | ||
| import org.apache.inlong.sdk.transform.process.parser.ValueParser; | ||
| import org.apache.inlong.sdk.transform.process.utils.DateUtil; | ||
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| import net.sf.jsqlparser.expression.Expression; | ||
| import net.sf.jsqlparser.expression.Function; | ||
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| import java.time.LocalDateTime; | ||
| import java.time.LocalTime; | ||
| import java.util.List; | ||
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| /** | ||
| * TimestampFunction -> timestamp(expr1[, expr2]) | ||
| * description: | ||
| * - return NULL if expr1 or expr2 is NULL. | ||
| * - return the date or datetime expression expr as a datetime value if there is only one parameter | ||
| * - return the result of the date or date time expression expr1 plus the time expression expr2 if there are two parameters | ||
| */ | ||
| @TransformFunction(names = {"timestamp"}) | ||
| public class TimestampFunction implements ValueParser { | ||
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| private ValueParser dateTimeExprParser; | ||
| private ValueParser timeExprParser; | ||
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| public TimestampFunction(Function expr) { | ||
| List<Expression> expressions = expr.getParameters().getExpressions(); | ||
| dateTimeExprParser = OperatorTools.buildParser(expressions.get(0)); | ||
| if (expressions.size() == 2) { | ||
| timeExprParser = OperatorTools.buildParser(expressions.get(1)); | ||
| } | ||
| } | ||
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| @Override | ||
| public Object parse(SourceData sourceData, int rowIndex, Context context) { | ||
| Object dateTimeExprObj = dateTimeExprParser.parse(sourceData, rowIndex, context); | ||
| if (dateTimeExprObj == null) { | ||
| return null; | ||
| } | ||
| String dateTimeStr = dateTimeExprObj.toString(); | ||
| LocalDateTime localDateTime = DateUtil.parseLocalDateTime(dateTimeExprObj.toString()); | ||
| if (localDateTime == null) { | ||
| // Not meeting the format requirements | ||
| return null; | ||
| } | ||
| boolean hasMicroSecond = dateTimeStr.indexOf('.') != -1; | ||
| String formatStr = DateUtil.YEAR_TO_SECOND; | ||
| // Support the second parameter | ||
| if (timeExprParser != null) { | ||
| Object timeExprObj = timeExprParser.parse(sourceData, rowIndex, context); | ||
| if (timeExprObj != null) { | ||
| String timeStr = timeExprObj.toString(); | ||
| LocalTime localTime = DateUtil.parseLocalTime(timeStr); | ||
| if (localTime == null) { | ||
| // Not meeting the format requirements | ||
| return null; | ||
| } | ||
| hasMicroSecond |= timeStr.indexOf('.') != -1; | ||
| localDateTime = DateUtil.dateAdd(localDateTime, localTime); | ||
| } else { | ||
| return null; | ||
| } | ||
| } | ||
| if (hasMicroSecond) { | ||
| formatStr = DateUtil.YEAR_TO_MICRO; | ||
| } | ||
| return localDateTime.format(DateUtil.getDateTimeFormatter(formatStr)); | ||
| } | ||
| } |
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...java/org/apache/inlong/sdk/transform/process/function/temporal/TestTimestampFunction.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.sdk.transform.process.function.temporal; | ||
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| import org.apache.inlong.sdk.transform.decode.SourceDecoderFactory; | ||
| import org.apache.inlong.sdk.transform.encode.SinkEncoderFactory; | ||
| import org.apache.inlong.sdk.transform.pojo.TransformConfig; | ||
| import org.apache.inlong.sdk.transform.process.TransformProcessor; | ||
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| import org.junit.Assert; | ||
| import org.junit.Test; | ||
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| import java.util.HashMap; | ||
| import java.util.List; | ||
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| public class TestTimestampFunction extends AbstractFunctionTemporalTestBase { | ||
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| @Test | ||
| public void testTimestamp() throws Exception { | ||
| String transformSql = null; | ||
| TransformConfig config = null; | ||
| TransformProcessor<String, String> processor = null; | ||
| List<String> output = null; | ||
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| transformSql = "select timestamp(string1,string2) from source"; | ||
| config = new TransformConfig(transformSql); | ||
| processor = TransformProcessor | ||
| .create(config, SourceDecoderFactory.createCsvDecoder(csvSource), | ||
| SinkEncoderFactory.createKvEncoder(kvSink)); | ||
| // case1: timestamp('2003-12-31 12:00:00.600000','12:00:00') | ||
| output = processor.transform("2003-12-31 12:00:00.600000|12:00:00", new HashMap<>()); | ||
| Assert.assertEquals(1, output.size()); | ||
| Assert.assertEquals("result=2004-01-01 00:00:00.600000", output.get(0)); | ||
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| // case2: timestamp('2003-12-31 12:00:00','12:00:00.600000') | ||
| output = processor.transform("2003-12-31 12:00:00|12:00:00.600000", new HashMap<>()); | ||
| Assert.assertEquals(1, output.size()); | ||
| Assert.assertEquals("result=2004-01-01 00:00:00.600000", output.get(0)); | ||
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| // case3: timestamp('2003-12-31','12:00:00.600000') | ||
| output = processor.transform("2003-12-31|12:00:00.600000", new HashMap<>()); | ||
| Assert.assertEquals(1, output.size()); | ||
| Assert.assertEquals("result=2003-12-31 12:00:00.600000", output.get(0)); | ||
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| transformSql = "select timestamp(string1,stringx) from source"; | ||
| config = new TransformConfig(transformSql); | ||
| processor = TransformProcessor | ||
| .create(config, SourceDecoderFactory.createCsvDecoder(csvSource), | ||
| SinkEncoderFactory.createKvEncoder(kvSink)); | ||
| // case4: timestamp('2003-12-31 12:00:00.600000',null) | ||
| output = processor.transform("2003-12-31 12:00:00.600000|12:00:00", new HashMap<>()); | ||
| Assert.assertEquals(1, output.size()); | ||
| Assert.assertEquals("result=", output.get(0)); | ||
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| transformSql = "select timestamp(string1) from source"; | ||
| config = new TransformConfig(transformSql); | ||
| processor = TransformProcessor | ||
| .create(config, SourceDecoderFactory.createCsvDecoder(csvSource), | ||
| SinkEncoderFactory.createKvEncoder(kvSink)); | ||
| // case5: timestamp('2003-12-31 12:00:00') | ||
| output = processor.transform("2003-12-31 12:00:00", new HashMap<>()); | ||
| Assert.assertEquals(1, output.size()); | ||
| Assert.assertEquals("result=2003-12-31 12:00:00", output.get(0)); | ||
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| // case6: timestamp('2003-12-31') | ||
| output = processor.transform("2003-12-31", new HashMap<>()); | ||
| Assert.assertEquals(1, output.size()); | ||
| Assert.assertEquals("result=2003-12-31 00:00:00", output.get(0)); | ||
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| } | ||
| } |