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.activemq.shiro.authc;
  
  import org.apache.activemq.command.ConnectionInfo;
  import org.apache.activemq.shiro.subject.SubjectConnectionReference;
  import org.apache.shiro.authc.AuthenticationToken;
  import org.apache.shiro.authc.UsernamePasswordToken;
  
  /**
   * Default implementation of the {@link AuthenticationTokenFactory} interface that returns
   * {@link org.apache.shiro.authc.UsernamePasswordToken UsernamePasswordToken} instances based on inspecting the
   * {@link ConnectionInfo}.
   *
   * @since 5.10.0
   */
  public class DefaultAuthenticationTokenFactory implements AuthenticationTokenFactory {
  
      public DefaultAuthenticationTokenFactory() {
      }
  
      /**
       * Returns a new {@link UsernamePasswordToken} instance populated based on the ConnectionInfo's
       * {@link org.apache.activemq.command.ConnectionInfo#getUserName() userName} and
       * {@link org.apache.activemq.command.ConnectionInfo#getPassword() password} properties.
       *
       * @param conn the subject's connection
       * @return a new {@link UsernamePasswordToken} instance populated based on the ConnectionInfo's
       *         ConnectionInfo's {@link org.apache.activemq.command.ConnectionInfo#getUserName() userName} and
       *         {@link org.apache.activemq.command.ConnectionInfo#getPassword() password} properties.
       */
      @Override
      public AuthenticationToken getAuthenticationToken(SubjectConnectionReference conn) {
  
          String username = conn.getConnectionInfo().getUserName();
          String password = conn.getConnectionInfo().getPassword();
  
          if (username == null && password == null) {
              //no identity or credentials provided by the client for the connection - return null to reflect this
              return null;
          }
  
          return new UsernamePasswordToken(username, password);
      }
  }
  