[INLONG-10816][SDK] Transform support Replace function.(apache#10816)

inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ReplaceFunction.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.util.List;
+
+/**
+ * ReplaceFunction
+ * description: replace(s, s1, s2)--replace string s1 in string s with string s2.
+ */
+public class ReplaceFunction implements ValueParser {
+
+    private ValueParser stringParser1;
+    private ValueParser stringParser2;
+    private ValueParser stringParser3;
+
+    /**
+     * Constructor
+     * @param expr
+     */
+    public ReplaceFunction(Function expr) {
+        List<Expression> expressions = expr.getParameters().getExpressions();
+        stringParser1 = OperatorTools.buildParser(expressions.get(0));
+        stringParser2 = OperatorTools.buildParser(expressions.get(1));
+        stringParser3 = OperatorTools.buildParser(expressions.get(2));
+    }
+
+    @Override
+    public Object parse(SourceData sourceData, int rowIndex, Context context) {
+        Object stringObj1 = stringParser1.parse(sourceData, rowIndex, context);
+        Object stringObj2 = stringParser2.parse(sourceData, rowIndex, context);
+        Object stringObj3 = stringParser3.parse(sourceData, rowIndex, context);
+        String str1 = OperatorTools.parseString(stringObj1);
+        String str2 = OperatorTools.parseString(stringObj2);
+        String str3 = OperatorTools.parseString(stringObj3);
+        return str1.replace(str2.charAt(0), str3.charAt(0));
+    }
+}

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

@@ -34,6 +34,7 @@
 import org.apache.inlong.sdk.transform.process.function.LogFunction;
 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.ReplaceFunction;
 import org.apache.inlong.sdk.transform.process.function.RoundFunction;
 import org.apache.inlong.sdk.transform.process.function.SinFunction;
 import org.apache.inlong.sdk.transform.process.function.SinhFunction;
@@ -108,6 +109,7 @@ public class OperatorTools {
         functionMap.put("log", LogFunction::new);
         functionMap.put("exp", ExpFunction::new);
         functionMap.put("substring", SubstringFunction::new);
+        functionMap.put("replace", ReplaceFunction::new);
         functionMap.put("locate", LocateFunction::new);
         functionMap.put("to_date", ToDateFunction::new);
         functionMap.put("date_format", DateFormatFunction::new);

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

@@ -118,4 +118,19 @@ public void testLocateFunction() throws Exception {
         Assert.assertEquals(1, output5.size());
         Assert.assertEquals(output5.get(0), "result=null");
     }
+
+    @Test
+    public void testReplaceFunction() throws Exception {
+        String transformSql = "select replace(string1, string2, string3) from source";
+        TransformConfig config = new TransformConfig(transformSql);
+        TransformProcessor<String, String> processor = TransformProcessor
+                .create(config, SourceDecoderFactory.createCsvDecoder(csvSource),
+                        SinkEncoderFactory.createKvEncoder(kvSink));
+        // case1: replace('hooray', 'o', 'a')
+        List<String> output = processor.transform("hooray|o|a", new HashMap<>());
+        Assert.assertEquals(1, output.size());
+        Assert.assertEquals(output.get(0), "result=haaray");
+
+    }
+
 }