emptyOVO commented on code in PR #11319: URL: https://github.com/apache/inlong/pull/11319#discussion_r1794549379
########## inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/JsonArrayInsertFunction.java: ########## @@ -0,0 +1,124 @@ +/* + * 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 com.alibaba.fastjson.JSON; +import com.alibaba.fastjson.JSONArray; +import com.alibaba.fastjson.JSONObject; +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; + +/** + * JsonArrayInsertFunction -> JSON_ARRAY_INSERT(json_doc, path, val[, path, val] ...) + * description: + * - return NULL if any argument is NULL; + * - return the document inserted into the array. + * Note: If multiple groups of parameters are passed in, the parameter subscripts of the latter groups + * need to be based on the document subscripts after the previous group of parameters are updated. + */ +@TransformFunction(names = {"json_array_insert"}) +public class JsonArrayInsertFunction implements ValueParser { + + private ValueParser jsonDocParser; + private List<ValueParser> pathValuePairsParser; + + public JsonArrayInsertFunction(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 jsonArrayInsert(jsonDocObj.toString(), pathValuePairs); + } + + public static String jsonArrayInsert(String jsonDoc, ArrayList<Object> pathValuePairs) { Review Comment: private? doesn’t need static I think -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
