content: /*
   * 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.kafka.connect.connector.policy;
  
  import org.apache.kafka.common.config.ConfigValue;
  import org.apache.kafka.common.utils.AppInfoParser;
  import org.apache.kafka.connect.components.Versioned;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  import java.util.stream.Collectors;
  
  public abstract class AbstractConnectorClientConfigOverridePolicy implements ConnectorClientConfigOverridePolicy, Versioned {
  
      @Override
      public String version() {
          return AppInfoParser.getVersion();
      }
  
      @Override
      public void close() {
  
      }
  
      @Override
      public final List<ConfigValue> validate(ConnectorClientConfigRequest connectorClientConfigRequest) {
          Map<String, Object> inputConfig = connectorClientConfigRequest.clientProps();
          return inputConfig.entrySet().stream().map(this::configValue).collect(Collectors.toList());
      }
  
      protected ConfigValue configValue(Map.Entry<String, Object> configEntry) {
          ConfigValue configValue =
              new ConfigValue(configEntry.getKey(), configEntry.getValue(), new ArrayList<>(), new ArrayList<>());
          validate(configValue);
          return configValue;
      }
  
      protected void validate(ConfigValue configValue) {
          if (!isAllowed(configValue)) {
              configValue.addErrorMessage("The '" + policyName() + "' policy does not allow '" + configValue.name()
                                          + "' to be overridden in the connector configuration.");
          }
      }
  
      protected abstract String policyName();
  
      protected abstract boolean isAllowed(ConfigValue configValue);
  }
  