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new e300cee78a [INLONG-11192][SDK] Transform SQL supports TIMEDIFF
function (#11200)
e300cee78a is described below
commit e300cee78a4ebf9595e1c4bbd1cdecb521e6823d
Author: Zkplo <87751516+zk...@users.noreply.github.com>
AuthorDate: Wed Oct 9 12:46:23 2024 +0800
[INLONG-11192][SDK] Transform SQL supports TIMEDIFF function (#11200)
---
.../process/function/TimeDiffFunction.java | 111 +++++++++++++++++++++
.../function/temporal/TestTimeDiffFunction.java | 75 ++++++++++++++
2 files changed, 186 insertions(+)
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/TimeDiffFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/TimeDiffFunction.java
new file mode 100644
index 0000000000..1e824ca36f
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/TimeDiffFunction.java
@@ -0,0 +1,111 @@
+/*
+ * 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.inlong.sdk.transform.process.function;
+
+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;
+
+import lombok.extern.slf4j.Slf4j;
+import net.sf.jsqlparser.expression.Expression;
+import net.sf.jsqlparser.expression.Function;
+
+import java.time.temporal.ChronoUnit;
+import java.time.temporal.Temporal;
+import java.util.List;
+
+/**
+ * TimeDiffFunction -> TIMEDIFF(expr1,expr2)
+ * description:
+ * - return NULL if expr1 or expr2 is NULL and the conversion types of expr1
and expr2 are different
+ * - returns expr1 − expr2 expressed as a time value.
+ * Note: expr1 and expr2 are strings converted to TIME or DATETIME expressions.
+ */
+@TransformFunction(names = {"timediff", "time_diff"})
+@Slf4j
+public class TimeDiffFunction implements ValueParser {
+
+ private final ValueParser leftDateParser;
+ private final ValueParser rightDateParser;
+
+ public TimeDiffFunction(Function expr) {
+ List<Expression> expressions = expr.getParameters().getExpressions();
+ leftDateParser = OperatorTools.buildParser(expressions.get(0));
+ rightDateParser = OperatorTools.buildParser(expressions.get(1));
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ Object leftDateObj = leftDateParser.parse(sourceData, rowIndex,
context);
+ Object rightDateObj = rightDateParser.parse(sourceData, rowIndex,
context);
+ if (leftDateObj == null || rightDateObj == null) {
+ return null;
+ }
+ String leftDate = OperatorTools.parseString(leftDateObj);
+ String rightDate = OperatorTools.parseString(rightDateObj);
+ if (leftDate.isEmpty() || rightDate.isEmpty()) {
+ return null;
+ }
+ boolean leftHasTime = leftDate.indexOf(' ') != -1;
+ boolean rightHasTime = rightDate.indexOf(' ') != -1;
+
+ boolean leftHasMicros = leftDate.indexOf('.') != -1;
+ boolean rightHasMicros = rightDate.indexOf('.') != -1;
+
+ try {
+ Temporal left = null, right = null;
+ if (leftHasTime && rightHasTime) {
+ left = DateUtil.parseLocalDateTime(leftDate);
+ right = DateUtil.parseLocalDateTime(rightDate);
+ } else if (!leftHasTime && !rightHasTime) {
+ left = DateUtil.parseLocalTime(leftDate);
+ right = DateUtil.parseLocalTime(rightDate);
+ }
+ if (left == null || right == null) {
+ return null;
+ }
+ long nanoDifference = ChronoUnit.NANOS.between(right, left);
+
+ // Convert nanoseconds to total seconds and remaining microseconds
+ long totalSeconds = nanoDifference / 1_000_000_000;
+ long microseconds = Math.abs((nanoDifference % 1_000_000_000) /
1_000);
+
+ // Handle negative duration
+ boolean isNegative = nanoDifference < 0;
+
+ // Convert totalSeconds to hours, minutes, and seconds
+ long absTotalSeconds = Math.abs(totalSeconds);
+ long hours = absTotalSeconds / 3600;
+ long minutes = (absTotalSeconds % 3600) / 60;
+ long seconds = absTotalSeconds % 60;
+
+ String between = String.format("%s%02d:%02d:%02d", isNegative ?
"-" : "",
+ Math.abs(hours), Math.abs(minutes), Math.abs(seconds));
+
+ if (leftHasMicros || rightHasMicros) {
+ between += String.format(".%06d", Math.abs(microseconds));
+ }
+ return between;
+ } catch (Exception e) {
+ log.error(e.getMessage(), e);
+ }
+ return null;
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/temporal/TestTimeDiffFunction.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/temporal/TestTimeDiffFunction.java
new file mode 100644
index 0000000000..397dd29404
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/temporal/TestTimeDiffFunction.java
@@ -0,0 +1,75 @@
+/*
+ * 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.inlong.sdk.transform.process.function.temporal;
+
+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;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.List;
+
+public class TestTimeDiffFunction extends AbstractFunctionTemporalTestBase {
+
+ @Test
+ public void testTimeDiffFunction() throws Exception {
+ String transformSql = null;
+ TransformConfig config = null;
+ TransformProcessor<String, String> processor = null;
+ List<String> output = null;
+
+ transformSql = "select timediff(string1,string2) from source";
+ config = new TransformConfig(transformSql);
+ processor = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case1: TIMEDIFF('2000-01-01 00:00:00','2000-01-01 00:00:00.000001')
+ output = processor.transform("2000-01-01 00:00:00|2000-01-01
00:00:00.000001", new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=-00:00:00.000001", output.get(0));
+
+ // case2: TIMEDIFF('2008-12-31 23:59:59.000001','2008-12-30
01:01:01.000002')
+ output = processor.transform("2008-12-31 23:59:59|2008-12-30
01:01:01.000002", new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=46:58:57.999998", output.get(0));
+
+ // case3: TIMEDIFF('00:00:00','00:00:01')
+ output = processor.transform("00:00:00|00:00:01", new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=-00:00:01", output.get(0));
+
+ // case4: TIMEDIFF('23:59:59.000001','01:01:01.000002')
+ output = processor.transform("23:59:59|01:01:01.000002", new
HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=22:58:57.999998", output.get(0));
+
+ // case5: TIMEDIFF('2008-12-31 23:59:59.000001','01:01:01.000002')
+ output = processor.transform("2008-12-31 23:59:59|01:01:01.000002",
new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=", output.get(0));
+
+ // case6: TIMEDIFF('2008-12-31 23:59:59.000001','0001-12-31
01:01:01.000002')
+ output = processor.transform("2008-12-31 23:59:59|0001-12-31
01:01:01.000002", new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=", output.get(0));
+ }
+}
