001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.shiro.config.event;
020
021public abstract class BeanListenerSupport implements BeanListener {
022    public void onBeanEvent(final BeanEvent beanEvent) {
023        if (beanEvent instanceof InstantiatedBeanEvent) {
024            this.onInstantiatedBeanEvent((InstantiatedBeanEvent) beanEvent);
025        } else if (beanEvent instanceof ConfiguredBeanEvent) {
026            this.onConfiguredBeanEvent((ConfiguredBeanEvent) beanEvent);
027        } else if (beanEvent instanceof DestroyedBeanEvent) {
028            this.onDestroyedBeanEvent((DestroyedBeanEvent) beanEvent);
029        } else {
030            this.onUnhandledBeanEvent(beanEvent);
031        }
032    }
033
034    protected void onUnhandledBeanEvent(final BeanEvent beanEvent) {
035        // do nothing
036    }
037
038    protected void onInstantiatedBeanEvent(final InstantiatedBeanEvent beanEvent) {
039        // do nothing
040    }
041
042    protected void onConfiguredBeanEvent(final ConfiguredBeanEvent beanEvent) {
043        // do nothing
044    }
045
046    protected void onDestroyedBeanEvent(final DestroyedBeanEvent beanEvent) {
047        // do nothing
048    }
049}