io.microsphere.spring.context.annotation.ExposingClassPathBeanDefinitionScanner Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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
 *
 *     http://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 io.microsphere.spring.context.annotation;

import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.config.SingletonBeanRegistry;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.context.annotation.ClassPathBeanDefinitionScanner;
import org.springframework.core.env.Environment;
import org.springframework.core.io.ResourceLoader;

import java.util.Set;

import static org.springframework.context.annotation.AnnotationConfigUtils.registerAnnotationConfigProcessors;

/**
 * A extension class of {@link ClassPathBeanDefinitionScanner} to expose some methods:
 * 
 *     {@link ClassPathBeanDefinitionScanner#doScan(String...)}
 *     {@link ClassPathBeanDefinitionScanner#checkCandidate(String, BeanDefinition)}
 * 
 * 
 * {@link ExposingClassPathBeanDefinitionScanner} also supports the features from {@link #getRegistry() BeanDefinitionRegistry}
 * and {@link #getSingletonBeanRegistry() SingletonBeanRegistry}
 *
 * @see ClassPathBeanDefinitionScanner
 * @see BeanDefinitionRegistry
 * @see SingletonBeanRegistry
 * @since 1.0.0
 */
public class ExposingClassPathBeanDefinitionScanner extends ClassPathBeanDefinitionScanner {

    public ExposingClassPathBeanDefinitionScanner(BeanDefinitionRegistry registry, boolean useDefaultFilters,
                                                  Environment environment, ResourceLoader resourceLoader) {
        super(registry, useDefaultFilters, environment);
        setResourceLoader(resourceLoader);
        registerAnnotationConfigProcessors(registry);
    }

    @Override
    public Set doScan(String... basePackages) {
        return super.doScan(basePackages);
    }

    @Override
    public boolean checkCandidate(String beanName, BeanDefinition beanDefinition) throws IllegalStateException {
        return super.checkCandidate(beanName, beanDefinition);
    }

    public SingletonBeanRegistry getSingletonBeanRegistry() {
        return (SingletonBeanRegistry) getRegistry();
    }

    public void registerBeanDefinition(String beanName, BeanDefinition beanDefinition) throws BeanDefinitionStoreException {
        getRegistry().registerBeanDefinition(beanName, beanDefinition);
    }

    public void registerSingleton(String beanName, Object singletonObject) {
        getSingletonBeanRegistry().registerSingleton(beanName, singletonObject);
    }
}