001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.camel.component.bean; 018 019import java.util.Map; 020 021import org.apache.camel.Endpoint; 022import org.apache.camel.impl.UriEndpointComponent; 023import org.apache.camel.util.IntrospectionSupport; 024import org.apache.camel.util.LRUCacheFactory; 025import org.apache.camel.util.LRUSoftCache; 026import org.slf4j.Logger; 027import org.slf4j.LoggerFactory; 028 029/** 030 * The <a href="http://camel.apache.org/bean.html">Bean Component</a> is for invoking Java beans from Camel. 031 */ 032public class BeanComponent extends UriEndpointComponent { 033 034 private static final Logger LOG = LoggerFactory.getLogger(BeanComponent.class); 035 // use an internal soft cache for BeanInfo as they are costly to introspect 036 // for example the bean language using OGNL expression runs much faster reusing the BeanInfo from this cache 037 @SuppressWarnings("unchecked") 038 private final LRUSoftCache<BeanInfoCacheKey, BeanInfo> cache = LRUCacheFactory.newLRUSoftCache(1000); 039 040 public BeanComponent() { 041 super(BeanEndpoint.class); 042 } 043 044 public BeanComponent(Class<? extends Endpoint> endpointClass) { 045 super(endpointClass); 046 } 047 048 // Implementation methods 049 //----------------------------------------------------------------------- 050 protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception { 051 BeanEndpoint endpoint = new BeanEndpoint(uri, this); 052 endpoint.setBeanName(remaining); 053 setProperties(endpoint, parameters); 054 055 // the bean.xxx options is for the bean 056 Map<String, Object> options = IntrospectionSupport.extractProperties(parameters, "bean."); 057 endpoint.setParameters(options); 058 return endpoint; 059 } 060 061 BeanInfo getBeanInfoFromCache(BeanInfoCacheKey key) { 062 return cache.get(key); 063 } 064 065 void addBeanInfoToCache(BeanInfoCacheKey key, BeanInfo beanInfo) { 066 cache.put(key, beanInfo); 067 } 068 069 @Override 070 protected void doShutdown() throws Exception { 071 if (LOG.isDebugEnabled()) { 072 LOG.debug("Clearing BeanInfo cache[size={}, hits={}, misses={}, evicted={}]", new Object[]{cache.size(), cache.getHits(), cache.getMisses(), cache.getEvicted()}); 073 } 074 cache.clear(); 075 } 076}