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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.shiro.config.event;
20  
21  public abstract class BeanListenerSupport implements BeanListener {
22      public void onBeanEvent(final BeanEvent beanEvent) {
23          if (beanEvent instanceof InstantiatedBeanEvent) {
24              this.onInstantiatedBeanEvent((InstantiatedBeanEvent) beanEvent);
25          } else if (beanEvent instanceof ConfiguredBeanEvent) {
26              this.onConfiguredBeanEvent((ConfiguredBeanEvent) beanEvent);
27          } else if (beanEvent instanceof DestroyedBeanEvent) {
28              this.onDestroyedBeanEvent((DestroyedBeanEvent) beanEvent);
29          } else {
30              this.onUnhandledBeanEvent(beanEvent);
31          }
32      }
33  
34      protected void onUnhandledBeanEvent(final BeanEvent beanEvent) {
35          // do nothing
36      }
37  
38      protected void onInstantiatedBeanEvent(final InstantiatedBeanEvent beanEvent) {
39          // do nothing
40      }
41  
42      protected void onConfiguredBeanEvent(final ConfiguredBeanEvent beanEvent) {
43          // do nothing
44      }
45  
46      protected void onDestroyedBeanEvent(final DestroyedBeanEvent beanEvent) {
47          // do nothing
48      }
49  }