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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 org.apache.dubbo.config.spring.context;
import static org.apache.dubbo.common.constants.LoggerCodeConstants.CONFIG_DUBBO_BEAN_NOT_FOUND;
import static org.springframework.util.ObjectUtils.nullSafeEquals;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.dubbo.common.logger.ErrorTypeAwareLogger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.config.spring.context.event.DubboConfigInitEvent;
import org.apache.dubbo.config.spring.util.DubboBeanUtils;
import org.apache.dubbo.rpc.model.ModuleModel;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ApplicationListener;
/**
* An ApplicationListener to load config beans
*/
public class DubboConfigApplicationListener implements ApplicationListener, ApplicationContextAware {
private final static ErrorTypeAwareLogger logger = LoggerFactory.getErrorTypeAwareLogger(DubboConfigApplicationListener.class);
private ApplicationContext applicationContext;
private ModuleModel moduleModel;
private AtomicBoolean initialized = new AtomicBoolean();
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.applicationContext = applicationContext;
this.moduleModel = DubboBeanUtils.getModuleModel(applicationContext);
}
@Override
public void onApplicationEvent(DubboConfigInitEvent event) {
if (nullSafeEquals(applicationContext, event.getSource())) {
// It's expected to be notified at org.springframework.context.support.AbstractApplicationContext.registerListeners(),
// before loading non-lazy singleton beans. At this moment, all BeanFactoryPostProcessor have been processed,
if (initialized.compareAndSet(false, true)) {
initDubboConfigBeans();
}
}
}
private void initDubboConfigBeans() {
// load DubboConfigBeanInitializer to init config beans
if (applicationContext.containsBean(DubboConfigBeanInitializer.BEAN_NAME)) {
applicationContext.getBean(DubboConfigBeanInitializer.BEAN_NAME, DubboConfigBeanInitializer.class);
} else {
logger.warn(CONFIG_DUBBO_BEAN_NOT_FOUND, "", "", "Bean '" + DubboConfigBeanInitializer.BEAN_NAME + "' was not found");
}
// All infrastructure config beans are loaded, initialize dubbo here
moduleModel.getDeployer().prepare();
}
}