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.security;
  
  import java.net.URL;
  
  import org.apache.activemq.broker.Broker;
  import org.apache.activemq.broker.BrokerPlugin;
  
  /**
   * Adds a JAAS based authentication security plugin
   * 
   * @org.apache.xbean.XBean description="Provides a JAAS based authentication plugin"
   * 
   * 
   */
  public class JaasAuthenticationPlugin implements BrokerPlugin {
      protected String configuration = "activemq-domain";
      protected boolean discoverLoginConfig = true;
  
      public Broker installPlugin(Broker broker) {
          initialiseJaas();
          return new JaasAuthenticationBroker(broker, configuration);
      }
  
  
      // Properties
      // -------------------------------------------------------------------------
      public String getConfiguration() {
          return configuration;
      }
  
      /**
       * Sets the JAAS configuration domain name used
       */
      public void setConfiguration(String jaasConfiguration) {
          this.configuration = jaasConfiguration;
      }
  
  
      public boolean isDiscoverLoginConfig() {
          return discoverLoginConfig;
      }
  
      /**
       * Enables or disables the auto-discovery of the login.config file for JAAS to initialize itself. 
       * This flag is enabled by default such that if the <b>java.security.auth.login.config</b> system property
       * is not defined then it is set to the location of the <b>login.config</b> file on the classpath.
       */
      public void setDiscoverLoginConfig(boolean discoverLoginConfig) {
          this.discoverLoginConfig = discoverLoginConfig;
      }
  
      // Implementation methods
      // -------------------------------------------------------------------------
      protected void initialiseJaas() {
          if (discoverLoginConfig) {
              String path = System.getProperty("java.security.auth.login.config");
              if (path == null) {
                  //URL resource = Thread.currentThread().getContextClassLoader().getResource("login.config");
                  URL resource = null;
                  if (resource == null) {
                      resource = getClass().getClassLoader().getResource("login.config");
                  }
                  if (resource != null) {
                      path = resource.getFile();
                      System.setProperty("java.security.auth.login.config", path);
                  }
              }
          }
      }
  }
  