org.springframework.beans.factory.support.SimpleBeanDefinitionRegistry.java Source code

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Here is the source code for org.springframework.beans.factory.support.SimpleBeanDefinitionRegistry.java

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/*
 * Copyright 2002-2018 the original author or authors.
 *
 * Licensed 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
 *
 *      https://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.springframework.beans.factory.support;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.core.SimpleAliasRegistry;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;

/**
 * Simple implementation of the {@link BeanDefinitionRegistry} interface.
 * Provides registry capabilities only, with no factory capabilities built in.
 * Can for example be used for testing bean definition readers.
 *
 * @author Juergen Hoeller
 * @since 2.5.2
 */
public class SimpleBeanDefinitionRegistry extends SimpleAliasRegistry implements BeanDefinitionRegistry {

    /** Map of bean definition objects, keyed by bean name. */
    private final Map<String, BeanDefinition> beanDefinitionMap = new ConcurrentHashMap<>(64);

    @Override
    public void registerBeanDefinition(String beanName, BeanDefinition beanDefinition)
            throws BeanDefinitionStoreException {

        Assert.hasText(beanName, "'beanName' must not be empty");
        Assert.notNull(beanDefinition, "BeanDefinition must not be null");
        this.beanDefinitionMap.put(beanName, beanDefinition);
    }

    @Override
    public void removeBeanDefinition(String beanName) throws NoSuchBeanDefinitionException {
        if (this.beanDefinitionMap.remove(beanName) == null) {
            throw new NoSuchBeanDefinitionException(beanName);
        }
    }

    @Override
    public BeanDefinition getBeanDefinition(String beanName) throws NoSuchBeanDefinitionException {
        BeanDefinition bd = this.beanDefinitionMap.get(beanName);
        if (bd == null) {
            throw new NoSuchBeanDefinitionException(beanName);
        }
        return bd;
    }

    @Override
    public boolean containsBeanDefinition(String beanName) {
        return this.beanDefinitionMap.containsKey(beanName);
    }

    @Override
    public String[] getBeanDefinitionNames() {
        return StringUtils.toStringArray(this.beanDefinitionMap.keySet());
    }

    @Override
    public int getBeanDefinitionCount() {
        return this.beanDefinitionMap.size();
    }

    @Override
    public boolean isBeanNameInUse(String beanName) {
        return isAlias(beanName) || containsBeanDefinition(beanName);
    }

}