/*
* Copyright 2014 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
*
* 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 org.springframework.xd.dirt.container.initializer;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
import org.springframework.boot.context.event.ApplicationPreparedEvent;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider;
import org.springframework.core.Ordered;
import org.springframework.util.StringUtils;
/**
*
* @author David Turanski
*/
public abstract class AbstractComponentScanningBeanDefinitionProvider implements OrderedContextInitializer {
@Override
public void onApplicationEvent(ApplicationPreparedEvent event) {
if (StringUtils.hasText(getExtensionsBasePackages())) {
AnnotationConfigApplicationContext context = (AnnotationConfigApplicationContext) event.getApplicationContext();
ClassPathScanningCandidateComponentProvider componentProvider = new
ClassPathScanningCandidateComponentProvider(
true, context.getEnvironment());
for (String basePackage : StringUtils.commaDelimitedListToStringArray(getExtensionsBasePackages())) {
for (BeanDefinition bean : componentProvider.findCandidateComponents(basePackage)) {
context.registerBeanDefinition(BeanDefinitionReaderUtils.generateBeanName(bean, context), bean);
}
}
}
}
protected abstract String getExtensionsBasePackages();
@Override
public int getOrder() {
return Ordered.LOWEST_PRECEDENCE;
}
}