refresh.md

spring-framework/spring-context/src/main/java/org/springframework/context/support/AbstractApplicationContext.java

Lines 553 to 621 in 53eddbb

	@Override
	public void refresh() throws BeansException, IllegalStateException {
	synchronized (this.startupShutdownMonitor) {
	StartupStep contextRefresh = this.applicationStartup.start("spring.context.refresh");
	// Prepare this context for refreshing.
	prepareRefresh();
	// Tell the subclass to refresh the internal bean factory.
	ConfigurableListableBeanFactory beanFactory = obtainFreshBeanFactory();
	// Prepare the bean factory for use in this context.
	prepareBeanFactory(beanFactory);
	try {
	// Allows post-processing of the bean factory in context subclasses.
	postProcessBeanFactory(beanFactory);
	StartupStep beanPostProcess = this.applicationStartup.start("spring.context.beans.post-process");
	// Invoke factory processors registered as beans in the context.
	invokeBeanFactoryPostProcessors(beanFactory);
	// Register bean processors that intercept bean creation.
	registerBeanPostProcessors(beanFactory);
	beanPostProcess.end();
	// Initialize message source for this context.
	initMessageSource();
	// Initialize event multicaster for this context.
	initApplicationEventMulticaster();
	// Initialize other special beans in specific context subclasses.
	onRefresh();
	// Check for listener beans and register them.
	registerListeners();
	// Instantiate all remaining (non-lazy-init) singletons.
	finishBeanFactoryInitialization(beanFactory);
	// Last step: publish corresponding event.
	finishRefresh();
	}
	catch (BeansException ex) {
	if (logger.isWarnEnabled()) {
	logger.warn("Exception encountered during context initialization - " +
	"cancelling refresh attempt: " + ex);
	}
	// Destroy already created singletons to avoid dangling resources.
	destroyBeans();
	// Reset 'active' flag.
	cancelRefresh(ex);
	// Propagate exception to caller.
	throw ex;
	}
	finally {
	// Reset common introspection caches in Spring's core, since we
	// might not ever need metadata for singleton beans anymore...
	resetCommonCaches();
	contextRefresh.end();
	}
	}
	}