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;
  
  import org.apache.activemq.broker.ConnectionContext;
  import org.apache.activemq.command.ConnectionInfo;
  import org.apache.shiro.env.Environment;
  
  /**
   * A reference (handle) to a client's {@link ConnectionContext} and {@link ConnectionInfo} as well as the Shiro
   * {@link Environment}.
   * <p/>
   * This implementation primarily exists as a <a href="http://sourcemaking.com/refactoring/introduce-parameter-object">
   * Parameter Object Design Pattern</a> implementation to eliminate long parameter lists, but provides additional
   * benefits, such as immutability and non-null guarantees, and possibility for future data without forcing method
   * signature changes.
   *
   * @since 5.10.0
   */
  public class ConnectionReference {
  
      private final ConnectionContext connectionContext;
      private final ConnectionInfo connectionInfo;
      private final Environment environment;
  
      public ConnectionReference(ConnectionContext connCtx, ConnectionInfo connInfo, Environment environment) {
          if (connCtx == null) {
              throw new IllegalArgumentException("ConnectionContext argument cannot be null.");
          }
          if (connInfo == null) {
              throw new IllegalArgumentException("ConnectionInfo argument cannot be null.");
          }
          if (environment == null) {
              throw new IllegalArgumentException("Environment argument cannot be null.");
          }
          this.connectionContext = connCtx;
          this.connectionInfo = connInfo;
          this.environment = environment;
      }
  
      public ConnectionContext getConnectionContext() {
          return connectionContext;
      }
  
      public ConnectionInfo getConnectionInfo() {
          return connectionInfo;
      }
  
      public Environment getEnvironment() {
          return environment;
      }
  }
  