Merge branch 'master' into dev4

inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/LocalTimeFunction.java

@@ -0,0 +1,55 @@
+/*
+ * 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 net.sf.jsqlparser.expression.Function;
+
+import java.time.LocalTime;
+import java.time.ZoneId;
+
+/**
+ *  LocalTimeFunction
+ *  description:
+ *  localTime([string1]) returns the current time in the specified time zone.
+ *  (by default: the current time in the system time zone)
+ */
+public class LocalTimeFunction implements ValueParser {
+
+    private ValueParser stringParser;
+
+    public LocalTimeFunction(Function expr) {
+        if (expr.getParameters() != null) {
+            stringParser = OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
+        }
+    }
+
+    @Override
+    public Object parse(SourceData sourceData, int rowIndex, Context context) {
+        if (stringParser != null) {
+            String zoneString = OperatorTools.parseString(stringParser.parse(sourceData, rowIndex, context));
+            return LocalTime.now(ZoneId.of(zoneString)).withNano(0);
+        } else {
+            return LocalTime.now(ZoneId.systemDefault()).withNano(0);
+        }
+    }
+}

inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/LowerFunction.java

@@ -0,0 +1,46 @@
+/*
+ * 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 net.sf.jsqlparser.expression.Function;
+
+/**
+ * LowerFunction
+ * description: LOWER(s): Convert all letters of the string s to lowercase letters
+ */
+public class LowerFunction implements ValueParser {
+
+    private ValueParser stringParser;
+
+    public LowerFunction(Function expr) {
+        stringParser = OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
+    }
+
+    @Override
+    public Object parse(SourceData sourceData, int rowIndex, Context context) {
+        Object stringObj = stringParser.parse(sourceData, rowIndex, context);
+        if (stringObj == null)
+            return null;
+        return stringObj.toString().toLowerCase();
+    }
+}

inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/RandFunction.java

@@ -0,0 +1,61 @@
+/*
+ * 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 net.sf.jsqlparser.expression.Expression;
+import net.sf.jsqlparser.expression.Function;
+
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.Random;
+
+/**
+ * RandFunction
+ * description: Rand()--Returns a pseudo-random double precision value in the range [0.0, 1.0)
+ *              Rand(Integer)--Returns a pseudo-random double precision value in the range [0.0, 1.0) with an initial seed of Integer.
+ */
+public class RandFunction implements ValueParser {
+
+    private ValueParser seedParser;
+
+    private Random random;
+
+    public RandFunction(Function expr) {
+        random = new Random();
+        if (expr.getParameters() != null) {
+            List<Expression> expressions = expr.getParameters().getExpressions();
+            if (expressions != null && expressions.size() == 1) {
+                seedParser = OperatorTools.buildParser(expressions.get(0));
+            }
+        }
+    }
+    @Override
+    public Object parse(SourceData sourceData, int rowIndex, Context context) {
+        if (seedParser != null) {
+            Object seedObj = seedParser.parse(sourceData, rowIndex, context);
+            BigDecimal seedValue = OperatorTools.parseBigDecimal(seedObj);
+            random.setSeed(seedValue.intValue());
+        }
+        return random.nextDouble();
+    }
+}

inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/UpperFunction.java

@@ -0,0 +1,46 @@
+/*
+ * 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 net.sf.jsqlparser.expression.Function;
+
+/**
+ * UpperFunction
+ * description: UPPER(s): Convert a string to uppercase
+ */
+public class UpperFunction implements ValueParser {
+
+    private ValueParser stringParser;
+
+    public UpperFunction(Function expr) {
+        stringParser = OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
+    }
+
+    @Override
+    public Object parse(SourceData sourceData, int rowIndex, Context context) {
+        Object stringObj = stringParser.parse(sourceData, rowIndex, context);
+        if (stringObj == null)
+            return null;
+        return stringObj.toString().toUpperCase();
+    }
+}

inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/operator/OperatorTools.java

@@ -31,13 +31,16 @@
 import org.apache.inlong.sdk.transform.process.function.FromUnixTimeFunction;
 import org.apache.inlong.sdk.transform.process.function.LengthFunction;
 import org.apache.inlong.sdk.transform.process.function.LnFunction;
+import org.apache.inlong.sdk.transform.process.function.LocalTimeFunction;
 import org.apache.inlong.sdk.transform.process.function.LocateFunction;
 import org.apache.inlong.sdk.transform.process.function.Log10Function;
 import org.apache.inlong.sdk.transform.process.function.Log2Function;
 import org.apache.inlong.sdk.transform.process.function.LogFunction;
+import org.apache.inlong.sdk.transform.process.function.LowerFunction;
 import org.apache.inlong.sdk.transform.process.function.ModuloFunction;
 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.RandFunction;
 import org.apache.inlong.sdk.transform.process.function.ReplaceFunction;
 import org.apache.inlong.sdk.transform.process.function.ReplicateFunction;
 import org.apache.inlong.sdk.transform.process.function.ReverseFunction;
@@ -54,6 +57,7 @@
 import org.apache.inlong.sdk.transform.process.function.ToTimestampFunction;
 import org.apache.inlong.sdk.transform.process.function.TrimFunction;
 import org.apache.inlong.sdk.transform.process.function.UnixTimestampFunction;
+import org.apache.inlong.sdk.transform.process.function.UpperFunction;
 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.DateParser;
@@ -116,6 +120,8 @@ public class OperatorTools {
     static {
         functionMap.put("concat", ConcatFunction::new);
         functionMap.put("now", NowFunction::new);
+        functionMap.put("localtime", LocalTimeFunction::new);
+        functionMap.put("currenttime", LocalTimeFunction::new);
         functionMap.put("power", PowerFunction::new);
         functionMap.put("abs", AbsFunction::new);
         functionMap.put("sqrt", SqrtFunction::new);
@@ -132,6 +138,7 @@ public class OperatorTools {
         functionMap.put("to_date", ToDateFunction::new);
         functionMap.put("date_format", DateFormatFunction::new);
         functionMap.put("ceil", CeilFunction::new);
+        functionMap.put("rand", RandFunction::new);
         functionMap.put("floor", FloorFunction::new);
         functionMap.put("sin", SinFunction::new);
         functionMap.put("sinh", SinhFunction::new);
@@ -160,6 +167,8 @@ public class OperatorTools {
         functionMap.put("mod", ModuloFunction::new);
         functionMap.put("to_base64", ToBase64Function::new);
         functionMap.put("sign", SignFunction::new);
+        functionMap.put("lower", LowerFunction::new);
+        functionMap.put("upper", UpperFunction::new);
         functionMap.put("length", LengthFunction::new);
         functionMap.put("replace", ReplaceFunction::new);
     }

inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformArithmeticFunctionsProcessor.java

@@ -30,6 +30,7 @@
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Random;
 
 /**
  * TestArithmeticFunctionsTransformProcessor
@@ -558,4 +559,31 @@ public void testBinFunction() throws Exception {
         Assert.assertEquals(output2.get(0), "result=null");
     }
 
+    @Test
+    public void testRandFunction() throws Exception {
+        String transformSql1 = "select rand(numeric1) from source";
+        TransformConfig config1 = new TransformConfig(transformSql1);
+        TransformProcessor<String, String> processor1 = TransformProcessor
+                .create(config1, SourceDecoderFactory.createCsvDecoder(csvSource),
+                        SinkEncoderFactory.createKvEncoder(kvSink));
+        // case: rand(1)
+        List<String> output1 = processor1.transform("1|4|6|8", new HashMap<>());
+        Assert.assertEquals(1, output1.size());
+        Assert.assertEquals(output1.get(0), "result=" + new Random(1).nextDouble());
+        // case: rand(2)
+        List<String> output2 = processor1.transform("2|4|6|8", new HashMap<>());
+        Assert.assertEquals(1, output2.size());
+        Assert.assertEquals(output2.get(0), "result=" + new Random(2).nextDouble());
+        String transformSql2 = "select rand() from source";
+        TransformConfig config2 = new TransformConfig(transformSql2);
+        TransformProcessor<String, String> processor2 = TransformProcessor
+                .create(config2, SourceDecoderFactory.createCsvDecoder(csvSource),
+                        SinkEncoderFactory.createKvEncoder(kvSink));
+        // case: rand()
+        List<String> output3 = processor2.transform("|||", new HashMap<>());
+        Assert.assertEquals(1, output3.size());
+        double result = Double.parseDouble(output3.get(0).substring(7));
+        Assert.assertTrue(result >= 0.0 && result < 1.0);
+    }
+
 }

inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformStringFunctionsProcessor.java

@@ -60,6 +60,62 @@ public class TestTransformStringFunctionsProcessor {
         kvSink = new KvSinkInfo("UTF-8", dstFields);
     }
 
+    @Test
+    public void testLowerFunction() throws Exception {
+        String transformSql1 = "select lower(string1) from source";
+        TransformConfig config1 = new TransformConfig(transformSql1);
+        TransformProcessor<String, String> processor1 = TransformProcessor
+                .create(config1, SourceDecoderFactory.createCsvDecoder(csvSource),
+                        SinkEncoderFactory.createKvEncoder(kvSink));
+        // case1: lower("ApPlE")
+        List<String> output1 = processor1.transform("ApPlE|banana|cloud|2|1|3", new HashMap<>());
+        Assert.assertEquals(1, output1.size());
+        Assert.assertEquals(output1.get(0), "result=apple");
+
+        // case2: lower("")
+        List<String> output2 = processor1.transform("|banana|cloud|2|1|3", new HashMap<>());
+        Assert.assertEquals(1, output2.size());
+        Assert.assertEquals(output2.get(0), "result=");
+
+        // case3: lower(null)
+        String transformSql2 = "select lower(xxd) from source";
+        TransformConfig config2 = new TransformConfig(transformSql2);
+        TransformProcessor<String, String> processor2 = TransformProcessor
+                .create(config2, SourceDecoderFactory.createCsvDecoder(csvSource),
+                        SinkEncoderFactory.createKvEncoder(kvSink));
+        List<String> output3 = processor2.transform("ApPlE|banana|cloud|2|1|3", new HashMap<>());
+        Assert.assertEquals(1, output3.size());
+        Assert.assertEquals(output3.get(0), "result=null");
+    }
+
+    @Test
+    public void testUpperFunction() throws Exception {
+        String transformSql1 = "select upper(string1) from source";
+        TransformConfig config1 = new TransformConfig(transformSql1);
+        TransformProcessor<String, String> processor1 = TransformProcessor
+                .create(config1, SourceDecoderFactory.createCsvDecoder(csvSource),
+                        SinkEncoderFactory.createKvEncoder(kvSink));
+        // case1: upper("ApPlE")
+        List<String> output1 = processor1.transform("ApPlE|banana|cloud|2|1|3", new HashMap<>());
+        Assert.assertEquals(1, output1.size());
+        Assert.assertEquals(output1.get(0), "result=APPLE");
+
+        // case2: upper("")
+        List<String> output2 = processor1.transform("|banana|cloud|2|1|3", new HashMap<>());
+        Assert.assertEquals(1, output2.size());
+        Assert.assertEquals(output2.get(0), "result=");
+
+        // case3: upper(null)
+        String transformSql2 = "select upper(xxd) from source";
+        TransformConfig config2 = new TransformConfig(transformSql2);
+        TransformProcessor<String, String> processor2 = TransformProcessor
+                .create(config2, SourceDecoderFactory.createCsvDecoder(csvSource),
+                        SinkEncoderFactory.createKvEncoder(kvSink));
+        List<String> output3 = processor2.transform("ApPlE|banana|cloud|2|1|3", new HashMap<>());
+        Assert.assertEquals(1, output3.size());
+        Assert.assertEquals(output3.get(0), "result=null");
+    }
+
     @Test
     public void testSubstringFunction() throws Exception {
         String transformSql1 = "select substring(string2, numeric1) from source";