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.common.network;
  
  import org.apache.kafka.common.config.ConfigException;
  import org.apache.kafka.common.security.auth.SecurityProtocol;
  import org.apache.kafka.common.utils.Utils;
  
  import java.util.Locale;
  import java.util.Objects;
  
  public final class ListenerName {
  
      private static final String CONFIG_STATIC_PREFIX = "listener.name";
  
      /**
       * Create an instance with the security protocol name as the value.
       */
      public static ListenerName forSecurityProtocol(SecurityProtocol securityProtocol) {
          return new ListenerName(securityProtocol.name);
      }
  
      /**
       * Create an instance with the provided value converted to uppercase.
       */
      public static ListenerName normalised(String value) {
          if (Utils.isBlank(value)) {
              throw new ConfigException("The provided listener name is null or empty string");
          }
          return new ListenerName(value.toUpperCase(Locale.ROOT));
      }
  
      private final String value;
  
      public ListenerName(String value) {
          Objects.requireNonNull(value, "value should not be null");
          this.value = value;
      }
  
      public String value() {
          return value;
      }
  
      @Override
      public boolean equals(Object o) {
          if (!(o instanceof ListenerName))
              return false;
          ListenerName that = (ListenerName) o;
          return value.equals(that.value);
      }
  
      @Override
      public int hashCode() {
          return value.hashCode();
      }
  
      @Override
      public String toString() {
          return "ListenerName(" + value + ")";
      }
  
      public String configPrefix() {
          return CONFIG_STATIC_PREFIX + "." + value.toLowerCase(Locale.ROOT) + ".";
      }
  
      public String saslMechanismConfigPrefix(String saslMechanism) {
          return configPrefix() + saslMechanismPrefix(saslMechanism);
      }
  
      public static String saslMechanismPrefix(String saslMechanism) {
          return saslMechanism.toLowerCase(Locale.ROOT) + ".";
      }
  }
  