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new 9ec6785c63 [INLONG-10900][SDK] Transform SQL support soundex function
(#11061)
9ec6785c63 is described below
commit 9ec6785c631ef7d6160aa7ee8f54e603ae279361
Author: Huan Liang <[email protected]>
AuthorDate: Tue Sep 10 10:33:17 2024 +0800
[INLONG-10900][SDK] Transform SQL support soundex function (#11061)
---
.../process/function/SoundexFunction.java | 79 ++++++++++++++++++++++
.../function/string/TestSoundexFunction.java | 49 ++++++++++++++
2 files changed, 128 insertions(+)
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/SoundexFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/SoundexFunction.java
new file mode 100644
index 0000000000..2a46c2a8a6
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/SoundexFunction.java
@@ -0,0 +1,79 @@
+/*
+ * 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.nio.charset.StandardCharsets;
+
+/**
+ * SoundexFunction
+ * description: soundex(string)---Returns a four character code representing
the sound of a string. This method returns a string, or null if parameter is
null.
+ * See https://en.wikipedia.org/wiki/Soundex for more information.
+ */
+@TransformFunction(names = {"soundex"})
+public class SoundexFunction implements ValueParser {
+
+ private ValueParser stringParser;
+
+ private static final byte[] SOUNDEX_INDEX =
+
"71237128722455712623718272\000\000\000\000\000\00071237128722455712623718272"
+ .getBytes(StandardCharsets.ISO_8859_1);
+
+ public SoundexFunction(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);
+ String str = OperatorTools.parseString(stringObject);
+ if (str == null) {
+ return null;
+ }
+ return new String(getSoundex(str), StandardCharsets.ISO_8859_1);
+ }
+
+ private static byte[] getSoundex(String str) {
+ byte[] chars = {'0', '0', '0', '0'};
+ byte lastDigit = '0';
+ for (int i = 0, j = 0, l = str.length(); i < l && j < 4; i++) {
+ char c = str.charAt(i);
+ if (c >= 'A' && c <= 'z') {
+ byte newDigit = SOUNDEX_INDEX[c - 'A'];
+ if (newDigit != 0) {
+ if (j == 0) {
+ chars[j++] = (byte) (c & 0xdf); // Converts a-z to A-Z
+ lastDigit = newDigit;
+ } else if (newDigit <= '6') {
+ if (newDigit != lastDigit) {
+ chars[j++] = lastDigit = newDigit;
+ }
+ } else if (newDigit == '7') {
+ lastDigit = newDigit;
+ }
+ }
+ }
+ }
+ return chars;
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestSoundexFunction.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestSoundexFunction.java
new file mode 100644
index 0000000000..8b673ab06f
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/string/TestSoundexFunction.java
@@ -0,0 +1,49 @@
+/*
+ * 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 TestSoundexFunction extends AbstractFunctionStringTestBase {
+
+ @Test
+ public void testSoundexFunction() throws Exception {
+ String transformSql = "select soundex(string1) from source";
+ TransformConfig config = new TransformConfig(transformSql);
+ TransformProcessor<String, String> processor1 = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ // soundex('soundex function')
+ List<String> output1 = processor1.transform("soundex function", new
HashMap<>());
+ Assert.assertEquals(1, output1.size());
+ Assert.assertEquals(output1.get(0), "result=S532");
+ // soundex('hello world')
+ List<String> output2 = processor1.transform("hello world", new
HashMap<>());
+ Assert.assertEquals(1, output2.size());
+ Assert.assertEquals(output2.get(0), "result=H464");
+ }
+}
