001/* 002 * Copyright 2002-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.beans.factory.support; 018 019import java.util.Map; 020import java.util.concurrent.ConcurrentHashMap; 021 022import org.springframework.beans.factory.BeanDefinitionStoreException; 023import org.springframework.beans.factory.NoSuchBeanDefinitionException; 024import org.springframework.beans.factory.config.BeanDefinition; 025import org.springframework.core.SimpleAliasRegistry; 026import org.springframework.util.Assert; 027import org.springframework.util.StringUtils; 028 029/** 030 * Simple implementation of the {@link BeanDefinitionRegistry} interface. 031 * Provides registry capabilities only, with no factory capabilities built in. 032 * Can for example be used for testing bean definition readers. 033 * 034 * @author Juergen Hoeller 035 * @since 2.5.2 036 */ 037public class SimpleBeanDefinitionRegistry extends SimpleAliasRegistry implements BeanDefinitionRegistry { 038 039 /** Map of bean definition objects, keyed by bean name. */ 040 private final Map<String, BeanDefinition> beanDefinitionMap = new ConcurrentHashMap<>(64); 041 042 043 @Override 044 public void registerBeanDefinition(String beanName, BeanDefinition beanDefinition) 045 throws BeanDefinitionStoreException { 046 047 Assert.hasText(beanName, "'beanName' must not be empty"); 048 Assert.notNull(beanDefinition, "BeanDefinition must not be null"); 049 this.beanDefinitionMap.put(beanName, beanDefinition); 050 } 051 052 @Override 053 public void removeBeanDefinition(String beanName) throws NoSuchBeanDefinitionException { 054 if (this.beanDefinitionMap.remove(beanName) == null) { 055 throw new NoSuchBeanDefinitionException(beanName); 056 } 057 } 058 059 @Override 060 public BeanDefinition getBeanDefinition(String beanName) throws NoSuchBeanDefinitionException { 061 BeanDefinition bd = this.beanDefinitionMap.get(beanName); 062 if (bd == null) { 063 throw new NoSuchBeanDefinitionException(beanName); 064 } 065 return bd; 066 } 067 068 @Override 069 public boolean containsBeanDefinition(String beanName) { 070 return this.beanDefinitionMap.containsKey(beanName); 071 } 072 073 @Override 074 public String[] getBeanDefinitionNames() { 075 return StringUtils.toStringArray(this.beanDefinitionMap.keySet()); 076 } 077 078 @Override 079 public int getBeanDefinitionCount() { 080 return this.beanDefinitionMap.size(); 081 } 082 083 @Override 084 public boolean isBeanNameInUse(String beanName) { 085 return isAlias(beanName) || containsBeanDefinition(beanName); 086 } 087 088}