spring security AbstractUserDetailsServiceBeanDefinitionParser 源码

spring security AbstractUserDetailsServiceBeanDefinitionParser 代码

文件路径：/config/src/main/java/org/springframework/security/config/authentication/AbstractUserDetailsServiceBeanDefinitionParser.java

/*
 * Copyright 2002-2016 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.security.config.authentication;

import org.w3c.dom.Element;

import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.parsing.BeanComponentDefinition;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.security.authentication.CachingUserDetailsService;
import org.springframework.security.config.BeanIds;
import org.springframework.util.StringUtils;

/**
 * @author Luke Taylor
 */
public abstract class AbstractUserDetailsServiceBeanDefinitionParser implements BeanDefinitionParser {

	static final String CACHE_REF = "cache-ref";

	public static final String CACHING_SUFFIX = ".caching";

	protected abstract String getBeanClassName(Element element);

	protected abstract void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder);

	@Override
	public BeanDefinition parse(Element element, ParserContext parserContext) {
		BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(getBeanClassName(element));
		doParse(element, parserContext, builder);
		RootBeanDefinition userService = (RootBeanDefinition) builder.getBeanDefinition();
		String beanId = resolveId(element, userService, parserContext);
		parserContext.registerBeanComponent(new BeanComponentDefinition(userService, beanId));
		String cacheRef = element.getAttribute(CACHE_REF);
		// Register a caching version of the user service if there's a cache-ref
		if (StringUtils.hasText(cacheRef)) {
			BeanDefinitionBuilder cachingUSBuilder = BeanDefinitionBuilder
					.rootBeanDefinition(CachingUserDetailsService.class);
			cachingUSBuilder.addConstructorArgReference(beanId);
			cachingUSBuilder.addPropertyValue("userCache", new RuntimeBeanReference(cacheRef));
			BeanDefinition cachingUserService = cachingUSBuilder.getBeanDefinition();
			parserContext
					.registerBeanComponent(new BeanComponentDefinition(cachingUserService, beanId + CACHING_SUFFIX));
		}
		return null;
	}

	private String resolveId(Element element, AbstractBeanDefinition definition, ParserContext pc)
			throws BeanDefinitionStoreException {
		String id = element.getAttribute("id");
		if (pc.isNested()) {
			// We're inside an <authentication-provider> element
			if (!StringUtils.hasText(id)) {
				id = pc.getReaderContext().generateBeanName(definition);
			}
			BeanDefinition container = pc.getContainingBeanDefinition();
			container.getPropertyValues().add("userDetailsService", new RuntimeBeanReference(id));
		}
		if (StringUtils.hasText(id)) {
			return id;
		}
		// If top level, use the default name or throw an exception if already used
		if (pc.getRegistry().containsBeanDefinition(BeanIds.USER_DETAILS_SERVICE)) {
			throw new BeanDefinitionStoreException(
					"No id supplied and another bean is already registered as " + BeanIds.USER_DETAILS_SERVICE);
		}
		return BeanIds.USER_DETAILS_SERVICE;
	}

}

相关信息

spring security 源码目录

相关文章

spring security AuthenticationManagerBeanDefinitionParser 源码

spring security AuthenticationManagerFactoryBean 源码

spring security AuthenticationProviderBeanDefinitionParser 源码

spring security JdbcUserServiceBeanDefinitionParser 源码

spring security PasswordEncoderParser 源码

spring security UserServiceBeanDefinitionParser 源码

spring security package-info 源码