yunqingmoswu commented on code in PR #6123: URL: https://github.com/apache/inlong/pull/6123#discussion_r991941629
########## inlong-sort/sort-connectors/base/src/main/java/org/apache/inlong/sort/base/format/AbstractDynamicSchemaFormat.java: ########## @@ -0,0 +1,116 @@ +/* + * 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.sort.base.format; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.List; +import java.util.regex.Pattern; + +/** + * Abstact dynamic format class + * This class main handle: + * 1. deserialize data from byte array to get raw data + * 2. parse pattern and get the real value from the raw data + * Such as: + * 1). give a pattern "${a}{b}{c}" and the raw data contains the keys(a: '1', b: '2', c: '3') + * the result of pared will be '123' + * 2). give a pattern "${a}_{b}_{c}" and the raw data contains the keys(a: '1', b: '2', c: '3') + * the result of pared will be '1_2_3' + * 3). give a pattern "prefix_${a}_{b}_{c}_suffix" and the raw Node contains the keys(a: '1', b: '2', c: '3') + * the result of pared will be 'prefix_1_2_3_suffix' + */ +public abstract class AbstractDynamicSchemaFormat<T> { + + public static final Pattern PATTERN = Pattern.compile("\\$\\{\\s*([\\w.-]+)\\s*}", Pattern.CASE_INSENSITIVE); + + /** + * Extract value by key from the raw data + * + * @param message The byte array of raw data + * @param keys The key list that will be used to extract + * @return The value list maps the keys + * @throws IOException The exceptions may throws when extract + */ + public List<String> extract(byte[] message, String... keys) throws IOException { Review Comment: This method is not used, and may be used in the future, such as directly extracting the values of multiple keys at one time. -- 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: commits-unsubscr...@inlong.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
