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new f2c5051bd5 [INLONG-11260][SDK] Transform SQL supports "num_nonnulls"
and "num_nulls" function (#11278)
f2c5051bd5 is described below
commit f2c5051bd5b8e99eb3e8eedb4ea776222ffde2d5
Author: Zkplo <[email protected]>
AuthorDate: Tue Oct 8 12:47:29 2024 +0800
[INLONG-11260][SDK] Transform SQL supports "num_nonnulls" and "num_nulls"
function (#11278)
Co-authored-by: ZKpLo <[email protected]>
---
.../process/function/NumNonNullsFunction.java | 71 +++++++++++++++++++++
.../process/function/NumNullsFunction.java | 72 ++++++++++++++++++++++
.../arithmetic/TestNumNonNullsFunction.java | 51 +++++++++++++++
.../function/arithmetic/TestNumNullsFunction.java | 51 +++++++++++++++
4 files changed, 245 insertions(+)
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/NumNonNullsFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/NumNonNullsFunction.java
new file mode 100644
index 0000000000..1e613506d8
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/NumNonNullsFunction.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 net.sf.jsqlparser.expression.NullValue;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * NumNonNullsFunction -> num_nonnulls(expr1,expr2,...)
+ * description:
+ * - return the number of non-null arguments.
+ */
+@TransformFunction(names = {"num_nonnulls"})
+public class NumNonNullsFunction implements ValueParser {
+
+ private final List<ValueParser> nodeList;
+
+ public NumNonNullsFunction(Function expr) {
+ List<Expression> expressions = expr.getParameters().getExpressions();
+ this.nodeList = new ArrayList<>();
+ if (expressions == null || expressions.isEmpty()) {
+ return;
+ }
+ for (Expression expression : expressions) {
+ if (expression instanceof NullValue) {
+ nodeList.add(null);
+ } else {
+ nodeList.add(OperatorTools.buildParser(expression));
+ }
+ }
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ int num = 0;
+ for (ValueParser valueParser : nodeList) {
+ if (valueParser == null) {
+ continue;
+ }
+ Object value = valueParser.parse(sourceData, rowIndex, context);
+ if (value != null) {
+ num++;
+ }
+ }
+ return num;
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/NumNullsFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/NumNullsFunction.java
new file mode 100644
index 0000000000..31b528db32
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/NumNullsFunction.java
@@ -0,0 +1,72 @@
+/*
+ * 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 net.sf.jsqlparser.expression.NullValue;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * NumNonNullsFunction -> num_nulls(expr1,expr2,...)
+ * description:
+ * - return the number of null arguments.
+ */
+@TransformFunction(names = {"num_nulls"})
+public class NumNullsFunction implements ValueParser {
+
+ private final List<ValueParser> nodeList;
+
+ public NumNullsFunction(Function expr) {
+ List<Expression> expressions = expr.getParameters().getExpressions();
+ this.nodeList = new ArrayList<>();
+ if (expressions == null || expressions.isEmpty()) {
+ return;
+ }
+ for (Expression expression : expressions) {
+ if (expression instanceof NullValue) {
+ nodeList.add(null);
+ } else {
+ nodeList.add(OperatorTools.buildParser(expression));
+ }
+ }
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ int num = 0;
+ for (ValueParser valueParser : nodeList) {
+ if (valueParser == null) {
+ num++;
+ continue;
+ }
+ Object value = valueParser.parse(sourceData, rowIndex, context);
+ if (value == null) {
+ num++;
+ }
+ }
+ return num;
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/arithmetic/TestNumNonNullsFunction.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/arithmetic/TestNumNonNullsFunction.java
new file mode 100644
index 0000000000..59168c48ef
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/arithmetic/TestNumNonNullsFunction.java
@@ -0,0 +1,51 @@
+/*
+ * 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.arithmetic;
+
+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 TestNumNonNullsFunction extends
AbstractFunctionArithmeticTestBase {
+
+ @Test
+ public void testNumNonNullsFunction() throws Exception {
+ String transformSql = null, data = null;
+ TransformConfig config = null;
+ TransformProcessor<String, String> processor = null;
+ List<String> output = null;
+
+ // case1: num_nonnulls(5, 3, null, null)
+ transformSql = "select num_nonnulls(numeric1,numeric2,null,numericx)
from source";
+ config = new TransformConfig(transformSql);
+ processor = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ data = "5|3|3|5";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=2", output.get(0));
+ }
+}
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/arithmetic/TestNumNullsFunction.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/arithmetic/TestNumNullsFunction.java
new file mode 100644
index 0000000000..54e815dc0a
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/arithmetic/TestNumNullsFunction.java
@@ -0,0 +1,51 @@
+/*
+ * 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.arithmetic;
+
+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 TestNumNullsFunction extends AbstractFunctionArithmeticTestBase {
+
+ @Test
+ public void testNumNullsFunction() throws Exception {
+ String transformSql = null, data = null;
+ TransformConfig config = null;
+ TransformProcessor<String, String> processor = null;
+ List<String> output = null;
+
+ // case1: num_nulls(5, null, null, null)
+ transformSql = "select num_nulls(numeric1,numericx1,null,numericx2)
from source";
+ config = new TransformConfig(transformSql);
+ processor = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+ data = "5|3|3|5";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=3", output.get(0));
+ }
+}
