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new ee7f3d9732 [INLONG-10826][SDK] Transform support TRIM(), REPLICATE()
function (#10827)
ee7f3d9732 is described below
commit ee7f3d9732fd6706f706b3988d50efb5eae1d090
Author: emptyOVO <118812562+empty...@users.noreply.github.com>
AuthorDate: Wed Aug 21 21:32:53 2024 +0800
[INLONG-10826][SDK] Transform support TRIM(), REPLICATE() function (#10827)
---
.../process/function/ReplicateFunction.java | 71 ++++++++++++++++++++++
.../transform/process/function/TrimFunction.java | 44 ++++++++++++++
.../transform/process/operator/OperatorTools.java | 4 ++
.../TestTransformStringFunctionsProcessor.java | 66 ++++++++++++++++++++
4 files changed, 185 insertions(+)
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ReplicateFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ReplicateFunction.java
new file mode 100644
index 0000000000..5270720d44
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ReplicateFunction.java
@@ -0,0 +1,71 @@
+/*
+ * 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;
+/**
+ * ReplicateFunction
+ * description: replicate(string, numeric)--Repeat the string numeric times
and return a new string
+ */
+public class ReplicateFunction implements ValueParser {
+
+ private ValueParser stringParser;
+
+ private ValueParser countParser;
+
+ public ReplicateFunction(Function expr) {
+ List<Expression> expressions = expr.getParameters().getExpressions();
+ stringParser = OperatorTools.buildParser(expressions.get(0));
+ countParser = OperatorTools.buildParser(expressions.get(1));
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ Object stringObj = stringParser.parse(sourceData, rowIndex, context);
+ Object countObj = countParser.parse(sourceData, rowIndex, context);
+ String str = OperatorTools.parseString(stringObj);
+ double count = OperatorTools.parseBigDecimal(countObj).doubleValue();
+ return repeat(str, count);
+ }
+ private String repeat(String str, double count) {
+ if (count == 0) {
+ return "";
+ }
+ if (count == 1) {
+ return str;
+ }
+ StringBuilder repeatedStr = new StringBuilder();
+ StringBuilder originStr = new StringBuilder(str);
+ while (count > 0) {
+ if (count % 2 != 0) {
+ repeatedStr.append(originStr);
+ }
+ count = Math.floor(count / 2);
+ originStr.append(originStr);
+ }
+ return repeatedStr.toString();
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/TrimFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/TrimFunction.java
new file mode 100644
index 0000000000..b3fbaf26dc
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/TrimFunction.java
@@ -0,0 +1,44 @@
+/*
+ * 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;
+
+/**
+ * TrimFunction
+ * description: trim(string)--Remove Spaces before and after the string.
+ */
+public class TrimFunction implements ValueParser {
+
+ private ValueParser stringParser;
+
+ public TrimFunction(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);
+ return OperatorTools.parseString(stringObj).trim();
+ }
+}
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 fe361263a4..028ef7156f 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
@@ -34,6 +34,7 @@ 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.NowFunction;
import org.apache.inlong.sdk.transform.process.function.PowerFunction;
+import org.apache.inlong.sdk.transform.process.function.ReplicateFunction;
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;
@@ -42,6 +43,7 @@ import
org.apache.inlong.sdk.transform.process.function.SubstringFunction;
import
org.apache.inlong.sdk.transform.process.function.TimestampExtractFunction;
import org.apache.inlong.sdk.transform.process.function.ToDateFunction;
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.parser.AdditionParser;
import org.apache.inlong.sdk.transform.process.parser.ColumnParser;
@@ -108,6 +110,8 @@ public class OperatorTools {
functionMap.put("log", LogFunction::new);
functionMap.put("exp", ExpFunction::new);
functionMap.put("substring", SubstringFunction::new);
+ functionMap.put("trim", TrimFunction::new);
+ functionMap.put("replicate", ReplicateFunction::new);
functionMap.put("locate", LocateFunction::new);
functionMap.put("to_date", ToDateFunction::new);
functionMap.put("date_format", DateFormatFunction::new);
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformStringFunctionsProcessor.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformStringFunctionsProcessor.java
index 8dabad12f6..a56fc520b3 100644
---
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformStringFunctionsProcessor.java
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/TestTransformStringFunctionsProcessor.java
@@ -118,4 +118,70 @@ public class TestTransformStringFunctionsProcessor {
Assert.assertEquals(1, output5.size());
Assert.assertEquals(output5.get(0), "result=null");
}
+ @Test
+ public void testReplicateFunction() throws Exception {
+ String transformSql1 = "select replicate(string1, numeric1) from
source";
+ TransformConfig config1 = new TransformConfig(transformSql1);
+ TransformProcessor<String, String> processor1 = TransformProcessor
+ .create(config1,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case1: replicate('apple', 2)
+ List<String> output1 =
processor1.transform("apple|banana|cloud|2|1|3", new HashMap<>());
+ Assert.assertEquals(1, output1.size());
+ Assert.assertEquals(output1.get(0), "result=appleapple");
+ String transformSql2 = "select replicate(string2, numeric2) from
source";
+ TransformConfig config2 = new TransformConfig(transformSql2);
+ TransformProcessor<String, String> processor2 = TransformProcessor
+ .create(config2,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case2: replicate('banana', 3)
+ List<String> output2 =
processor2.transform("apple|banana|cloud|1|3|3", new HashMap<>());
+ Assert.assertEquals(1, output2.size());
+ Assert.assertEquals(output2.get(0), "result=bananabananabanana");
+ // case3: replicate('banana', 1)
+ List<String> output3 =
processor2.transform("apple|banana|cloud|1|1|3", new HashMap<>());
+ Assert.assertEquals(1, output2.size());
+ Assert.assertEquals(output3.get(0), "result=banana");
+ // case3: replicate('cloud', 0)
+ String transformSql3 = "select replicate(string3, numeric3) from
source";
+ TransformConfig config3 = new TransformConfig(transformSql3);
+ TransformProcessor<String, String> processor3 = TransformProcessor
+ .create(config3,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ List<String> output4 =
processor3.transform("apple|banana|cloud|2|1|0", new HashMap<>());
+ Assert.assertEquals(1, output4.size());
+ Assert.assertEquals(output4.get(0), "result=");
+ }
+
+ @Test
+ public void testTrimFunction() throws Exception {
+ String transformSql1 = "select trim(string1) from source";
+ TransformConfig config1 = new TransformConfig(transformSql1);
+ TransformProcessor<String, String> processor1 = TransformProcessor
+ .create(config1,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case1: trim(' in long')
+ List<String> output1 = processor1.transform(" in long|in long | in
long ", new HashMap<>());
+ Assert.assertEquals(1, output1.size());
+ Assert.assertEquals(output1.get(0), "result=in long");
+ String transformSql2 = "select trim(string2) from source";
+ TransformConfig config2 = new TransformConfig(transformSql2);
+ TransformProcessor<String, String> processor2 = TransformProcessor
+ .create(config2,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case2: trim('in long ')
+ List<String> output2 = processor2.transform(" in long|in long | in
long ", new HashMap<>());
+ Assert.assertEquals(1, output2.size());
+ Assert.assertEquals(output2.get(0), "result=in long");
+ String transformSql3 = "select trim(string2) from source";
+ TransformConfig config3 = new TransformConfig(transformSql2);
+ TransformProcessor<String, String> processor3 = TransformProcessor
+ .create(config2,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case3: trim(' in long ')
+ List<String> output3 = processor3.transform(" in long|in long | in
long ", new HashMap<>());
+ Assert.assertEquals(1, output3.size());
+ Assert.assertEquals(output3.get(0), "result=in long");
+ }
+
}
