content: /*
   * Copyright 2019 Aiven Oy and jdbc-connector-for-apache-kafka project contributors
   * Copyright 2015 Confluent Inc.
   *
   * Licensed 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 io.aiven.connect.jdbc.util;
  
  import java.time.DateTimeException;
  import java.time.ZoneId;
  
  import org.apache.kafka.common.config.ConfigDef;
  import org.apache.kafka.common.config.ConfigException;
  
  public class TimeZoneValidator implements ConfigDef.Validator {
  
      public static final TimeZoneValidator INSTANCE = new TimeZoneValidator();
  
      @Override
      public void ensureValid(final String name, final Object value) {
          if (value != null) {
              try {
                  ZoneId.of(value.toString());
              } catch (final DateTimeException e) {
                  throw new ConfigException(name, value, "Invalid time zone identifier");
              }
          }
      }
  
      @Override
      public String toString() {
          return "valid time zone identifier (e.g., 'Europe/Helsinki', 'UTC+2', 'Z', 'CET')";
      }
  }
  