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new e6e9e49c90 [INLONG-11304][SDK] Transform SQL supports "JSON_REPLACE"
function (#11345)
e6e9e49c90 is described below
commit e6e9e49c9099968672b956f21872ab8af5a6d6d7
Author: Zkplo <[email protected]>
AuthorDate: Tue Oct 15 17:43:34 2024 +0800
[INLONG-11304][SDK] Transform SQL supports "JSON_REPLACE" function (#11345)
---
.../process/function/json/JsonReplaceFunction.java | 113 +++++++++++++++++++++
.../function/json/TestJsonReplaceFunction.java | 88 ++++++++++++++++
2 files changed, 201 insertions(+)
diff --git
a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/json/JsonReplaceFunction.java
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/json/JsonReplaceFunction.java
new file mode 100644
index 0000000000..ce12538f3b
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/json/JsonReplaceFunction.java
@@ -0,0 +1,113 @@
+/*
+ * 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.json;
+
+import org.apache.inlong.sdk.transform.decode.SourceData;
+import org.apache.inlong.sdk.transform.process.Context;
+import org.apache.inlong.sdk.transform.process.function.TransformFunction;
+import org.apache.inlong.sdk.transform.process.operator.OperatorTools;
+import org.apache.inlong.sdk.transform.process.parser.ValueParser;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONPath;
+import net.sf.jsqlparser.expression.Expression;
+import net.sf.jsqlparser.expression.Function;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * JsonReplaceFunction -> JSON_REPLACE(json_doc, path1, val1[, path2, val2,
...] ):
+ * description:
+ * - Return NULL if any argument is NULL;
+ * - Return the result of replacing existing values in 'json_doc'.
+ * Note: An error occurs if the 'json_doc' argument is not a valid JSON
document or any path argument is not a valid
+ * path expression or contains a * or ** wildcard.
+ */
+@TransformFunction(names = {
+ "json_replace"}, parameter = "(String json_doc, String path1, String
val1[, String path2, String val2, ...] )", descriptions = {
+ "- Return \"\" if any argument is NULL or the 'json_doc'
argument is not a valid JSON document or any "
+ +
+ "path argument is not a valid path expression or
contains a * or ** wildcard;",
+ "- Return the result of replacing existing values in
'json_doc'."
+ }, examples = {
+ "json_replace(\"{ \\\"a\\\": 1, \\\"b\\\": [2, 3]}\", \"$.a\",
10, \"$.c\", \"[true, false]\") = " +
+ "{\"a\": 10, \"b\": [2, 3]}"
+ })
+public class JsonReplaceFunction implements ValueParser {
+
+ private ValueParser jsonDocParser;
+ private List<ValueParser> pathValuePairsParser;
+
+ public JsonReplaceFunction(Function expr) {
+ List<Expression> expressions = expr.getParameters().getExpressions();
+ jsonDocParser = OperatorTools.buildParser(expressions.get(0));
+ pathValuePairsParser = new ArrayList<>();
+ for (int i = 1; i < expressions.size(); i++) {
+
pathValuePairsParser.add(OperatorTools.buildParser(expressions.get(i)));
+ }
+ }
+
+ @Override
+ public Object parse(SourceData sourceData, int rowIndex, Context context) {
+ Object jsonDocObj = jsonDocParser.parse(sourceData, rowIndex, context);
+ if (jsonDocObj == null) {
+ return null;
+ }
+ ArrayList<Object> pathValuePairs = new ArrayList<>();
+ for (ValueParser valueParser : pathValuePairsParser) {
+ pathValuePairs.add(valueParser.parse(sourceData, rowIndex,
context));
+ }
+ return jsonReplace(jsonDocObj.toString(), pathValuePairs);
+ }
+
+ private String jsonReplace(String jsonDoc, ArrayList<Object>
pathValuePairs) {
+ if (jsonDoc == null || pathValuePairs == null || pathValuePairs.size()
% 2 != 0) {
+ return null;
+ }
+
+ Object json = JSON.parse(jsonDoc);
+
+ for (int i = 0; i < pathValuePairs.size(); i += 2) {
+ String path = (String) pathValuePairs.get(i);
+ Object value = pathValuePairs.get(i + 1);
+
+ // If the path is' $', replace the entire JSON directly
+ if (path.equals("$")) {
+ try {
+ json = JSON.parse(value.toString());
+ } catch (Exception ignored) {
+ json = value;
+ }
+ } else if (path.contains("*") || path.contains("**")) {
+ throw new IllegalArgumentException("Invalid path expression: "
+ path);
+ } else {
+ // If the path exists, replace the corresponding value. If the
path does not exist, ignore it
+ if (JSONPath.contains(json, path)) {
+ try {
+ JSONPath.set(json, path, JSON.parse(value.toString()));
+ } catch (Exception ignored) {
+ JSONPath.set(json, path, value);
+ }
+ }
+ }
+ }
+ return json.toString();
+ }
+
+}
diff --git
a/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/json/TestJsonReplaceFunction.java
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/json/TestJsonReplaceFunction.java
new file mode 100644
index 0000000000..b41b9c57eb
--- /dev/null
+++
b/inlong-sdk/transform-sdk/src/test/java/org/apache/inlong/sdk/transform/process/function/json/TestJsonReplaceFunction.java
@@ -0,0 +1,88 @@
+/*
+ * 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.json;
+
+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.apache.inlong.sdk.transform.process.function.string.AbstractFunctionStringTestBase;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.List;
+
+public class TestJsonReplaceFunction extends AbstractFunctionStringTestBase {
+
+ @Test
+ public void testJsonReplaceFunction() throws Exception {
+ String transformSql = null, data = null;
+ TransformConfig config = null;
+ TransformProcessor<String, String> processor = null;
+ List<String> output = null;
+
+ String json_doc = "";
+ transformSql = "select json_replace(string1,string2,string3) from
source";
+ config = new TransformConfig(transformSql);
+ processor = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+
+ // case1: json_replace(json_doc, $.age, 35)
+ json_doc = "{\\\"age\\\":30}";
+ data = json_doc + "|$.age|35|";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result={\"age\":35}", output.get(0));
+
+ // case2: json_replace(json_doc, $.address.zip, 99999)
+ json_doc = "{\\\"address\\\":{\\\"zip\\\":\\\"12345\\\"}}";
+ data = json_doc + "|$.address.zip|99999|";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result={\"address\":{\"zip\":99999}}",
output.get(0));
+
+ // case3: json_replace(json_doc, $.hobbies[1], hiking)
+ json_doc =
"{\\\"hobbies\\\":[\\\"swimming\\\",\\\"reading\\\",\\\"coding\\\"]}";
+ data = json_doc + "|$.hobbies[1]|hiking|";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+
Assert.assertEquals("result={\"hobbies\":[\"swimming\",\"hiking\",\"coding\"]}",
output.get(0));
+
+ // case4: json_replace(json_doc, $, root_value)
+ data = json_doc + "|$|root_value|";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result=root_value", output.get(0));
+
+ transformSql = "select
json_replace(string1,string2,string3,numeric1,numeric2) from source";
+ config = new TransformConfig(transformSql);
+ processor = TransformProcessor
+ .create(config,
SourceDecoderFactory.createCsvDecoder(csvSource),
+ SinkEncoderFactory.createKvEncoder(kvSink));
+
+ // case5: json_replace(json_doc, $,
{\"name\":\"inlong\"},"$.name","apache.inlong")
+ data = json_doc +
"|$|{\\\"name\\\":\\\"inlong\\\"}|$.name|apache.inlong";
+ output = processor.transform(data, new HashMap<>());
+ Assert.assertEquals(1, output.size());
+ Assert.assertEquals("result={\"name\":\"apache.inlong\"}",
output.get(0));
+
+ }
+}
