82 lines
3.9 KiB
Plaintext
82 lines
3.9 KiB
Plaintext
# Spring Boot 4.1.2 sources: the order SpringApplication.run() calls things in, and callRunners
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--- SpringApplication.run(): from refresh to ready (lines containing the calls) ---
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18: refreshContext(context);
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19: afterRefresh(context, applicationArguments);
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24: listeners.started(context, timeTakenToStarted);
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25: callRunners(context, applicationArguments);
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28: throw handleRunFailure(context, ex, listeners);
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32: listeners.ready(context, startup.ready());
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36: throw handleRunFailure(context, ex, null);
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--- SpringApplication.callRunners ---
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private void callRunners(ConfigurableApplicationContext context, ApplicationArguments args) {
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ConfigurableListableBeanFactory beanFactory = context.getBeanFactory();
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String[] beanNames = beanFactory.getBeanNamesForType(Runner.class);
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Map<Runner, String> instancesToBeanNames = new IdentityHashMap<>();
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for (String beanName : beanNames) {
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instancesToBeanNames.put(beanFactory.getBean(beanName, Runner.class), beanName);
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}
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Comparator<Object> comparator = getOrderComparator(beanFactory)
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.withSourceProvider(new FactoryAwareOrderSourceProvider(beanFactory, instancesToBeanNames));
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instancesToBeanNames.keySet().stream().sorted(comparator).forEach((runner) -> callRunner(runner, args));
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}
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--- SpringApplication.callRunner (what happens to a bean that is both kinds) ---
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private void callRunner(Runner runner, ApplicationArguments args) {
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if (runner instanceof ApplicationRunner) {
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callRunner(ApplicationRunner.class, runner, (applicationRunner) -> applicationRunner.run(args));
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}
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if (runner instanceof CommandLineRunner) {
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callRunner(CommandLineRunner.class, runner,
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(commandLineRunner) -> commandLineRunner.run(args.getSourceArgs()));
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}
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}
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--- SpringApplication.callRunner(Class, Runner, ThrowingConsumer) (where 'Failed to execute' comes from) ---
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private <R extends Runner> void callRunner(Class<R> type, Runner runner, ThrowingConsumer<R> call) {
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call.throwing(
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(message, ex) -> new IllegalStateException("Failed to execute " + ClassUtils.getShortName(type), ex))
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.accept((R) runner);
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}
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--- EventPublishingRunListener.started / ready ---
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public void started(ConfigurableApplicationContext context, @Nullable Duration timeTaken) {
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context.publishEvent(new ApplicationStartedEvent(this.application, this.args, context, timeTaken));
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AvailabilityChangeEvent.publish(context, LivenessState.CORRECT);
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}
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public void ready(ConfigurableApplicationContext context, @Nullable Duration timeTaken) {
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context.publishEvent(new ApplicationReadyEvent(this.application, this.args, context, timeTaken));
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AvailabilityChangeEvent.publish(context, ReadinessState.ACCEPTING_TRAFFIC);
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}
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--- the marker interface that both runners extend ---
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interface Runner {
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public interface CommandLineRunner extends Runner {
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public interface ApplicationRunner extends Runner {
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--- the same method in Spring Boot 3.0.13 ---
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private void callRunners(ApplicationContext context, ApplicationArguments args) {
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context.getBeanProvider(Runner.class).orderedStream().forEach((runner) -> {
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if (runner instanceof ApplicationRunner applicationRunner) {
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callRunner(applicationRunner, args);
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}
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if (runner instanceof CommandLineRunner commandLineRunner) {
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callRunner(commandLineRunner, args);
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}
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});
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}
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--- the same method in Spring Boot 3.1.12 ---
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private void callRunners(ConfigurableApplicationContext context, ApplicationArguments args) {
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ConfigurableListableBeanFactory beanFactory = context.getBeanFactory();
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String[] beanNames = beanFactory.getBeanNamesForType(Runner.class);
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Map<Runner, String> instancesToBeanNames = new IdentityHashMap<>();
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for (String beanName : beanNames) {
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instancesToBeanNames.put(beanFactory.getBean(beanName, Runner.class), beanName);
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}
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Comparator<Object> comparator = getOrderComparator(beanFactory)
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.withSourceProvider(new FactoryAwareOrderSourceProvider(beanFactory, instancesToBeanNames));
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instancesToBeanNames.keySet().stream().sorted(comparator).forEach((runner) -> callRunner(runner, args));
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}
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