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new 4cdce2c585 [INLONG-11044][SDK] Transform SQL supports string judgment
functions(IS_ALPHA、IS_DECIMAL、IS_DIGIT) (#11052)
4cdce2c585 is described below
commit 4cdce2c5855b1c872372d9e5ffae02e50452cb23
Author: Zkplo <[email protected]>
AuthorDate: Thu Sep 12 14:40:47 2024 +0800
[INLONG-11044][SDK] Transform SQL supports string judgment
functions(IS_ALPHA、IS_DECIMAL、IS_DIGIT) (#11052)
Co-authored-by: ZKpLo <[email protected]>
---
.../process/function/IsAlphaFunction.java | 60 ++++++++++++++++
.../process/function/IsDecimalFunction.java | 54 +++++++++++++++
.../process/function/IsDigitFunction.java | 59 ++++++++++++++++
.../function/string/TestIsAlphaFunction.java | 74 ++++++++++++++++++++
.../function/string/TestIsDecimalFunction.java | 80 ++++++++++++++++++++++
.../function/string/TestIsDigitFunction.java | 80 ++++++++++++++++++++++
6 files changed, 407 insertions(+)
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/IsAlphaFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/IsAlphaFunction.java
new file mode 100644
index 0000000000..54f54aee9c
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/IsAlphaFunction.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.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;
+
+/**
+ * IsAlphaFunction
+ * description: is_alpha(string)
+ * - return true if all characters in string are letter
+ * - return false otherwise (Including cases where string is null and '').
+ */
+@TransformFunction(names = {"is_alpha"})
+public class IsAlphaFunction implements ValueParser {
+
+ private final ValueParser stringParser;
+
+ public IsAlphaFunction(Function expr) {
+ stringParser =
OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ Object stringObject = stringParser.parse(sourceData, rowIndex,
context);
+ if (stringObject == null) {
+ return false;
+ }
+ String string = OperatorTools.parseString(stringObject);
+ if (string.isEmpty()) {
+ return false;
+ }
+ for (char chr : string.toCharArray()) {
+ if ((chr >= 'a' && chr <= 'z') || (chr >= 'A' && chr <= 'Z')) {
+ continue;
+ }
+ return false;
+ }
+ return true;
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/IsDecimalFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/IsDecimalFunction.java
new file mode 100644
index 0000000000..d22f3ddaf6
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/IsDecimalFunction.java
@@ -0,0 +1,54 @@
+/*
+ * 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;
+
+/**
+ * IsDecimalFunction
+ * description: is_decimal(string)
+ * - return true if string can be parsed to a valid numeric.
+ * - return false otherwise (Including cases where string is null and '').
+ */
+@TransformFunction(names = {"is_decimal"})
+public class IsDecimalFunction implements ValueParser {
+
+ private final ValueParser stringParser;
+
+ public IsDecimalFunction(Function expr) {
+ stringParser =
OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ Object stringObject = stringParser.parse(sourceData, rowIndex,
context);
+ if (stringObject == null) {
+ return false;
+ }
+ String string = OperatorTools.parseString(stringObject).toLowerCase();
+ if (string.isEmpty()) {
+ return false;
+ }
+ return
string.matches("(\\s)*([+-])?(([0-9]*\\.)?([0-9]+)|([0-9]+)(\\.[0-9]*)?)([eE][\\+-]?[0-9]+)?(\\s)*");
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/IsDigitFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/IsDigitFunction.java
new file mode 100644
index 0000000000..be656bb1d1
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/IsDigitFunction.java
@@ -0,0 +1,59 @@
+/*
+ * 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;
+
+/**
+ * IsDigitFunction
+ * description: is_digit(string)
+ * - return true if all characters in string are digit.
+ * - return false otherwise (Including cases where string is null and '').
+ */
+@TransformFunction(names = {"is_digit"})
+public class IsDigitFunction implements ValueParser {
+
+ private final ValueParser stringParser;
+
+ public IsDigitFunction(Function expr) {
+ stringParser =
OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ Object stringObject = stringParser.parse(sourceData, rowIndex,
context);
+ if (stringObject == null) {
+ return false;
+ }
+ String string = OperatorTools.parseString(stringObject).toLowerCase();
+ if (string.isEmpty()) {
+ return false;
+ }
+ for (char chr : string.toCharArray()) {
+ if (chr < '0' || chr > '9') {
+ return false;
+ }
+ }
+ return true;
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestIsAlphaFunction.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestIsAlphaFunction.java
new file mode 100644
index 0000000000..a608cb9f96
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestIsAlphaFunction.java
@@ -0,0 +1,74 @@
+/*
+ * 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.string;
+
+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 TestIsAlphaFunction extends AbstractFunctionStringTestBase {
+
+ @Test
+ public void testIsAlphaFunction() throws Exception {
+ String transformSql = null, data = null;
+ TransformConfig config = null;
+ TransformProcessor<String, String> processor = null;
+ List<String> output = null;
+
+ transformSql = "select is_alpha(string1) from source";
+ config = new TransformConfig(transformSql);
+ processor = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case1: is_alpha('he')
+ data = "he|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=true", output.get(0));
+
+ // case2: is_alpha('he~')
+ data = "he~|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=false", output.get(0));
+
+ // case3: is_alpha('')
+ data = "|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=false", output.get(0));
+
+ transformSql = "select is_alpha(xxd) from source";
+ config = new TransformConfig(transformSql);
+ processor = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case4: is_alpha(null)
+ data = "|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=false", output.get(0));
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestIsDecimalFunction.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestIsDecimalFunction.java
new file mode 100644
index 0000000000..e6efbeee64
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestIsDecimalFunction.java
@@ -0,0 +1,80 @@
+/*
+ * 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.string;
+
+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 TestIsDecimalFunction extends AbstractFunctionStringTestBase {
+
+ @Test
+ public void testIsDecimalFunction() throws Exception {
+ String transformSql = null, data = null;
+ TransformConfig config = null;
+ TransformProcessor<String, String> processor = null;
+ List<String> output = null;
+
+ transformSql = "select is_decimal(string1) from source";
+ config = new TransformConfig(transformSql);
+ processor = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case1: is_decimal('3he')
+ data = "3he|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=false", output.get(0));
+
+ // case2: is_decimal('3.5')
+ data = "3.5|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=true", output.get(0));
+
+ // case3: is_decimal('35')
+ data = "35|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=true", output.get(0));
+
+ // case4: is_decimal('')
+ data = "|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=false", output.get(0));
+
+ transformSql = "select is_decimal(xxd) from source";
+ config = new TransformConfig(transformSql);
+ processor = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case5: is_decimal(null)
+ data = "|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=false", output.get(0));
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestIsDigitFunction.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestIsDigitFunction.java
new file mode 100644
index 0000000000..e0fa23e6d2
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestIsDigitFunction.java
@@ -0,0 +1,80 @@
+/*
+ * 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.string;
+
+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 TestIsDigitFunction extends AbstractFunctionStringTestBase {
+
+ @Test
+ public void testIsDigitFunction() throws Exception {
+ String transformSql = null, data = null;
+ TransformConfig config = null;
+ TransformProcessor<String, String> processor = null;
+ List<String> output = null;
+
+ transformSql = "select is_digit(string1) from source";
+ config = new TransformConfig(transformSql);
+ processor = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case1: is_digit('3he')
+ data = "3he|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=false", output.get(0));
+
+ // case2: is_digit('3.5')
+ data = "3.5|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=false", output.get(0));
+
+ // case3: is_digit('35')
+ data = "35|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=true", output.get(0));
+
+ // case4: is_digit('')
+ data = "|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=false", output.get(0));
+
+ transformSql = "select is_digit(xxd) from source";
+ config = new TransformConfig(transformSql);
+ processor = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // case5: is_digit(null)
+ data = "|xxd|cloud|7|3|3";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=false", output.get(0));
+ }
+}
