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new 26e9330c06 [INLONG-10603][SDK] Transform SQL support arithmetic
functions(Including power, abs, sqrt and ln) (#10606)
26e9330c06 is described below
commit 26e9330c06178eff3a9bba6c5d30bb6c8348f70b
Author: LeeWY <[email protected]>
AuthorDate: Thu Jul 11 19:25:02 2024 +0800
[INLONG-10603][SDK] Transform SQL support arithmetic functions(Including
power, abs, sqrt and ln) (#10606)
Co-authored-by: jameswyli <[email protected]>
---
.../transform/process/function/AbsFunction.java | 56 ++++++++++
.../sdk/transform/process/function/LnFunction.java | 56 ++++++++++
.../transform/process/function/PowerFunction.java | 60 +++++++++++
.../transform/process/function/SqrtFunction.java | 56 ++++++++++
.../transform/process/operator/OperatorTools.java | 33 ++++--
.../TestTransformArithmeticFunctionsProcessor.java | 120 +++++++++++++++++++++
6 files changed, 373 insertions(+), 8 deletions(-)
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/AbsFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/AbsFunction.java
new file mode 100644
index 0000000000..cc56afb85e
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/AbsFunction.java
@@ -0,0 +1,56 @@
+/*
+ * 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.operator.OperatorTools;
+import org.apache.inlong.sdk.transform.process.parser.ValueParser;
+
+import net.sf.jsqlparser.expression.Function;
+
+import java.math.BigDecimal;
+
+/**
+ * AbsFunction
+ * description: abs(numeric)--returns the absolute value of numeric
+ */
+public class AbsFunction implements ValueParser {
+
+ private ValueParser number;
+
+ /**
+ * Constructor
+ * @param expr
+ */
+ public AbsFunction(Function expr) {
+ number =
OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
+ }
+
+ /**
+ * parse
+ * @param sourceData
+ * @param rowIndex
+ * @return
+ */
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex) {
+ Object numberObj = number.parse(sourceData, rowIndex);
+ BigDecimal numberValue = OperatorTools.parseBigDecimal(numberObj);
+ return numberValue.abs();
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/LnFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/LnFunction.java
new file mode 100644
index 0000000000..fde53b6db1
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/LnFunction.java
@@ -0,0 +1,56 @@
+/*
+ * 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.operator.OperatorTools;
+import org.apache.inlong.sdk.transform.process.parser.ValueParser;
+
+import net.sf.jsqlparser.expression.Function;
+
+import java.math.BigDecimal;
+
+/**
+ * LnFunction
+ * description: ln(numeric)--returns the natural logarithm (base e) of numeric
+ */
+public class LnFunction implements ValueParser {
+
+ private ValueParser number;
+
+ /**
+ * Constructor
+ * @param expr
+ */
+ public LnFunction(Function expr) {
+ number =
OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
+ }
+
+ /**
+ * parse
+ * @param sourceData
+ * @param rowIndex
+ * @return
+ */
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex) {
+ Object numberObj = number.parse(sourceData, rowIndex);
+ BigDecimal numberValue = OperatorTools.parseBigDecimal(numberObj);
+ return Math.log(numberValue.doubleValue());
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/PowerFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/PowerFunction.java
new file mode 100644
index 0000000000..598c8c45f1
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/PowerFunction.java
@@ -0,0 +1,60 @@
+/*
+ * 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.operator.OperatorTools;
+import org.apache.inlong.sdk.transform.process.parser.ValueParser;
+
+import net.sf.jsqlparser.expression.Function;
+
+import java.math.BigDecimal;
+
+/**
+ * PowerFunction
+ * description: power(numeric1, numeric2)--returns numeric1.power(numeric2)
+ */
+public class PowerFunction implements ValueParser {
+
+ private ValueParser base;
+ private ValueParser exponent;
+
+ /**
+ * Constructor
+ * @param expr
+ */
+ public PowerFunction(Function expr) {
+ base =
OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
+ exponent =
OperatorTools.buildParser(expr.getParameters().getExpressions().get(1));
+ }
+
+ /**
+ * parse
+ * @param sourceData
+ * @param rowIndex
+ * @return
+ */
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex) {
+ Object baseObj = base.parse(sourceData, rowIndex);
+ Object exponentObj = exponent.parse(sourceData, rowIndex);
+ BigDecimal baseValue = OperatorTools.parseBigDecimal(baseObj);
+ BigDecimal exponentValue = OperatorTools.parseBigDecimal(exponentObj);
+ return Math.pow(baseValue.doubleValue(), exponentValue.doubleValue());
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/SqrtFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/SqrtFunction.java
new file mode 100644
index 0000000000..b3038ecaba
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/SqrtFunction.java
@@ -0,0 +1,56 @@
+/*
+ * 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.operator.OperatorTools;
+import org.apache.inlong.sdk.transform.process.parser.ValueParser;
+
+import net.sf.jsqlparser.expression.Function;
+
+import java.math.BigDecimal;
+
+/**
+ * SqrtFunction
+ * description: sqrt(numeric)--returns the square root of numeric
+ */
+public class SqrtFunction implements ValueParser {
+
+ private ValueParser number;
+
+ /**
+ * Constructor
+ * @param expr
+ */
+ public SqrtFunction(Function expr) {
+ number =
OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
+ }
+
+ /**
+ * parse
+ * @param sourceData
+ * @param rowIndex
+ * @return
+ */
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex) {
+ Object numberObj = number.parse(sourceData, rowIndex);
+ BigDecimal numberValue = OperatorTools.parseBigDecimal(numberObj);
+ return Math.sqrt(numberValue.doubleValue());
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
index 14e7c20d4b..6e4dbace0f 100644
---
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java
@@ -17,8 +17,12 @@
package org.apache.inlong.sdk.transform.process.operator;
+import org.apache.inlong.sdk.transform.process.function.AbsFunction;
import org.apache.inlong.sdk.transform.process.function.ConcatFunction;
+import org.apache.inlong.sdk.transform.process.function.LnFunction;
import org.apache.inlong.sdk.transform.process.function.NowFunction;
+import org.apache.inlong.sdk.transform.process.function.PowerFunction;
+import org.apache.inlong.sdk.transform.process.function.SqrtFunction;
import org.apache.inlong.sdk.transform.process.parser.AdditionParser;
import org.apache.inlong.sdk.transform.process.parser.ColumnParser;
import org.apache.inlong.sdk.transform.process.parser.DivisionParser;
@@ -51,6 +55,8 @@ import net.sf.jsqlparser.schema.Column;
import org.apache.commons.lang.ObjectUtils;
import java.math.BigDecimal;
+import java.util.HashMap;
+import java.util.Map;
/**
* OperatorTools
@@ -62,6 +68,17 @@ public class OperatorTools {
public static final String CHILD_KEY = "$child";
+ private static final Map<String, java.util.function.Function<Function,
ValueParser>> functionMap = new HashMap<>();
+
+ static {
+ functionMap.put("concat", ConcatFunction::new);
+ functionMap.put("now", NowFunction::new);
+ functionMap.put("power", PowerFunction::new);
+ functionMap.put("abs", AbsFunction::new);
+ functionMap.put("sqrt", SqrtFunction::new);
+ functionMap.put("ln", LnFunction::new);
+ }
+
public static ExpressionOperator buildOperator(Expression expr) {
if (expr instanceof AndExpression) {
return new AndOperator((AndExpression) expr);
@@ -111,13 +128,12 @@ public class OperatorTools {
} else {
// TODO
Function func = (Function) expr;
- switch (func.getName()) {
- case "concat":
- return new ConcatFunction(func);
- case "now":
- return new NowFunction(func);
- default:
- return new ColumnParser(func);
+ java.util.function.Function<Function, ValueParser>
valueParserConstructor =
+ functionMap.get(func.getName().toLowerCase());
+ if (valueParserConstructor != null) {
+ return valueParserConstructor.apply(func);
+ } else {
+ return new ColumnParser(func);
}
}
}
@@ -139,7 +155,8 @@ public class OperatorTools {
/**
* compareValue
- * @param value
+ * @param left
+ * @param right
* @return
*/
@SuppressWarnings("rawtypes")
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformArithmeticFunctionsProcessor.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformArithmeticFunctionsProcessor.java
new file mode 100644
index 0000000000..fef3d23e1f
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformArithmeticFunctionsProcessor.java
@@ -0,0 +1,120 @@
+/*
+ * 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;
+
+import org.apache.inlong.sdk.transform.pojo.CsvSourceInfo;
+import org.apache.inlong.sdk.transform.pojo.FieldInfo;
+import org.apache.inlong.sdk.transform.pojo.KvSinkInfo;
+import org.apache.inlong.sdk.transform.pojo.SinkInfo;
+import org.apache.inlong.sdk.transform.pojo.SourceInfo;
+import org.apache.inlong.sdk.transform.pojo.TransformConfig;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+/**
+ * TestArithmeticFunctionsTransformProcessor
+ * description: test the arithmetic functions in transform processor
+ */
+public class TestTransformArithmeticFunctionsProcessor {
+
+ private static final List<FieldInfo> srcFields = new ArrayList<>();
+ private static final List<FieldInfo> dstFields = new ArrayList<>();
+ private static final SourceInfo csvSource;
+ private static final SinkInfo kvSink;
+ static {
+ for (int i = 1; i < 5; i++) {
+ FieldInfo field = new FieldInfo();
+ field.setName("numeric" + i);
+ srcFields.add(field);
+ }
+ FieldInfo field = new FieldInfo();
+ field.setName("result");
+ dstFields.add(field);
+ csvSource = new CsvSourceInfo("UTF-8", "|", "\\", srcFields);
+ kvSink = new KvSinkInfo("UTF-8", dstFields);
+ }
+
+ @Test
+ public void testPowerFunction() throws Exception {
+ String transformSql = "select power(numeric1, numeric2) from source";
+ TransformConfig config = new TransformConfig(csvSource, kvSink,
transformSql);
+ // case1: 2^4
+ TransformProcessor processor = new TransformProcessor(config);
+ List<String> output1 = processor.transform("2|4|6|8", new HashMap<>());
+ Assert.assertTrue(output1.size() == 1);
+ Assert.assertEquals(output1.get(0), "result=16.0");
+ // case2: 2^(-2)
+ List<String> output2 = processor.transform("2|-2|6|8", new
HashMap<>());
+ Assert.assertTrue(output2.size() == 1);
+ Assert.assertEquals(output2.get(0), "result=0.25");
+ // case3: 4^(0.5)
+ List<String> output3 = processor.transform("4|0.5|6|8", new
HashMap<>());
+ Assert.assertTrue(output3.size() == 1);
+ Assert.assertEquals(output3.get(0), "result=2.0");
+ }
+
+ @Test
+ public void testAbsFunction() throws Exception {
+ String transformSql = "select abs(numeric1) from source";
+ TransformConfig config = new TransformConfig(csvSource, kvSink,
transformSql);
+ // case1: |2|
+ TransformProcessor processor = new TransformProcessor(config);
+ List<String> output1 = processor.transform("2|4|6|8", new HashMap<>());
+ Assert.assertTrue(output1.size() == 1);
+ Assert.assertEquals(output1.get(0), "result=2");
+ // case2: |-4.25|
+ List<String> output2 = processor.transform("-4.25|4|6|8", new
HashMap<>());
+ Assert.assertTrue(output2.size() == 1);
+ Assert.assertEquals(output2.get(0), "result=4.25");
+ }
+
+ @Test
+ public void testSqrtFunction() throws Exception {
+ String transformSql = "select sqrt(numeric1) from source";
+ TransformConfig config = new TransformConfig(csvSource, kvSink,
transformSql);
+ // case1: sqrt(9)
+ TransformProcessor processor = new TransformProcessor(config);
+ List<String> output1 = processor.transform("9|4|6|8", new HashMap<>());
+ Assert.assertTrue(output1.size() == 1);
+ Assert.assertEquals(output1.get(0), "result=3.0");
+ // case2: sqrt(5)
+ List<String> output2 = processor.transform("5|4|6|8", new HashMap<>());
+ Assert.assertTrue(output2.size() == 1);
+ Assert.assertEquals(output2.get(0), "result=2.23606797749979");
+ }
+
+ @Test
+ public void testLnFunction() throws Exception {
+ String transformSql = "select ln(numeric1) from source";
+ TransformConfig config = new TransformConfig(csvSource, kvSink,
transformSql);
+ // case1: ln(1)
+ TransformProcessor processor = new TransformProcessor(config);
+ List<String> output1 = processor.transform("1|4|6|8", new HashMap<>());
+ Assert.assertTrue(output1.size() == 1);
+ Assert.assertEquals(output1.get(0), "result=0.0");
+ // case2: ln(10)
+ List<String> output2 = processor.transform("10|4|6|8", new
HashMap<>());
+ Assert.assertTrue(output2.size() == 1);
+ Assert.assertEquals(output2.get(0), "result=2.302585092994046");
+ }
+}
