| /* |
| * 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.seatunnel.datasource.configuration; |
| |
| import static org.apache.seatunnel.datasource.configuration.util.ConfigUtil.convertToJsonString; |
| import static org.apache.seatunnel.datasource.configuration.util.ConfigUtil.convertValue; |
| import static org.apache.seatunnel.datasource.configuration.util.ConfigUtil.flatteningMap; |
| import static org.apache.seatunnel.datasource.configuration.util.ConfigUtil.treeMap; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| |
| import java.io.Serializable; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Optional; |
| |
| public class ReadonlyConfig implements Serializable { |
| private static final long serialVersionUID = 1L; |
| private static final ObjectMapper JACKSON_MAPPER = new ObjectMapper(); |
| |
| /** |
| * Stores the concrete key/value pairs of this configuration object. |
| */ |
| protected final Map<String, Object> confData; |
| |
| private ReadonlyConfig(Map<String, Object> confData) { |
| this.confData = confData; |
| } |
| |
| public static ReadonlyConfig fromMap(Map<String, Object> map) { |
| return new ReadonlyConfig(treeMap(map)); |
| } |
| |
| public <T> T get(Option<T> option) { |
| return getOptional(option).orElseGet(option::defaultValue); |
| } |
| |
| public Map<String, String> toMap() { |
| if (confData.isEmpty()) { |
| return Collections.emptyMap(); |
| } |
| |
| Map<String, String> result = new HashMap<>(); |
| toMap(result); |
| return result; |
| } |
| |
| public void toMap(Map<String, String> result) { |
| if (confData.isEmpty()) { |
| return; |
| } |
| Map<String, Object> flatteningMap = flatteningMap(confData); |
| for (Map.Entry<String, Object> entry : flatteningMap.entrySet()) { |
| result.put(entry.getKey(), convertToJsonString(entry.getValue())); |
| } |
| } |
| |
| @SuppressWarnings("unchecked") |
| public <T> Optional<T> getOptional(Option<T> option) { |
| if (option == null) { |
| throw new NullPointerException("Option not be null."); |
| } |
| String[] keys = option.key().split("\\."); |
| Map<String, Object> data = this.confData; |
| Object value = null; |
| for (int i = 0; i < keys.length; i++) { |
| value = data.get(keys[i]); |
| if (i < keys.length - 1) { |
| if (!(value instanceof Map)) { |
| return Optional.empty(); |
| } else { |
| data = (Map<String, Object>) value; |
| } |
| } |
| } |
| if (value == null) { |
| return Optional.empty(); |
| } |
| return Optional.of(convertValue(value, option.typeReference())); |
| } |
| |
| @Override |
| public int hashCode() { |
| int hash = 0; |
| for (String s : this.confData.keySet()) { |
| hash ^= s.hashCode(); |
| } |
| return hash; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (!(obj instanceof ReadonlyConfig)) { |
| return false; |
| } |
| Map<String, Object> otherConf = ((ReadonlyConfig) obj).confData; |
| return this.confData.equals(otherConf); |
| } |
| |
| @Override |
| public String toString() { |
| return convertToJsonString(this.confData); |
| } |
| } |