me.yanaga.winter.data.jpa.spring.config.RepositoriesRegistrar.java Source code

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Here is the source code for me.yanaga.winter.data.jpa.spring.config.RepositoriesRegistrar.java

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package me.yanaga.winter.data.jpa.spring.config;

/*
 * #%L
 * winter-data-jpa
 * %%
 * Copyright (C) 2015 Edson Yanaga
 * %%
 * 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
 * 
 *      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.
 * #L%
 */

import me.yanaga.winter.data.jpa.spring.SimpleRepositoryFactoryBean;
import me.yanaga.winter.data.jpa.spring.config.metadata.EnableRepositoriesMetadata;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.context.annotation.ImportBeanDefinitionRegistrar;
import org.springframework.core.type.AnnotationMetadata;
import org.springframework.util.ClassUtils;

import java.beans.Introspector;

public class RepositoriesRegistrar implements ImportBeanDefinitionRegistrar {

    protected final Logger logger = LoggerFactory.getLogger(getClass());

    @Override
    public void registerBeanDefinitions(AnnotationMetadata importingClassMetadata,
            BeanDefinitionRegistry registry) {
        EnableRepositoriesMetadata enableRepositoriesMetadata = EnableRepositoriesMetadata
                .of(importingClassMetadata);
        RepositoryComponentProvider provider = new RepositoryComponentProvider();
        enableRepositoriesMetadata.getPackagesToScan().stream().forEach(p -> {
            provider.findCandidateComponents(p).stream().forEach(b -> {
                BeanDefinitionBuilder builder = BeanDefinitionBuilder
                        .rootBeanDefinition(SimpleRepositoryFactoryBean.class);
                builder.addPropertyValue("repositoryInterface", b.getBeanClassName());
                AbstractBeanDefinition beanDefinition = builder.getBeanDefinition();
                String beanName = defineRepositoryBeanName(b.getBeanClassName());

                logger.debug(String.format("Registering beanDefinition of Repository '%s' with name '%s'",
                        b.getBeanClassName(), beanName));

                registry.registerBeanDefinition(beanName, beanDefinition);
            });
        });
    }

    private String defineRepositoryBeanName(String repositoryInterface) {
        String shortClassName = ClassUtils.getShortName(repositoryInterface);
        return Introspector.decapitalize(shortClassName);
    }

}