SpringApplicationShutdownHookInstance Class — spring-boot Architecture

Source Code

core/spring-boot/src/test/java/org/springframework/boot/SpringApplicationShutdownHookInstance.java lines 33–85

public final class SpringApplicationShutdownHookInstance implements AssertProvider<Assert> {

	private final SpringApplicationShutdownHook shutdownHook;

	private SpringApplicationShutdownHookInstance(SpringApplicationShutdownHook shutdownHook) {
		this.shutdownHook = shutdownHook;
	}

	SpringApplicationShutdownHook getShutdownHook() {
		return this.shutdownHook;
	}

	@Override
	public Assert assertThat() {
		return new Assert(this.shutdownHook);
	}

	public static void reset() {
		get().getShutdownHook().reset();
	}

	public static SpringApplicationShutdownHookInstance get() {
		return new SpringApplicationShutdownHookInstance(SpringApplication.shutdownHook);
	}

	/**
	 * Assertions that can be performed on the {@link SpringApplicationShutdownHook}.
	 */
	public static class Assert extends ObjectAssert<SpringApplicationShutdownHook> {

		Assert(SpringApplicationShutdownHook actual) {
			super(actual);
		}

		public Assert registeredApplicationContext(ConfigurableApplicationContext context) {
			assertThatIsApplicationContextRegistered(context).isTrue();
			return this;
		}

		public Assert didNotRegisterApplicationContext(ConfigurableApplicationContext context) {
			assertThatIsApplicationContextRegistered(context).isFalse();
			return this;
		}

		private AbstractBooleanAssert<?> assertThatIsApplicationContextRegistered(
				ConfigurableApplicationContext context) {
			return Assertions.assertThat(this.actual.isApplicationContextRegistered(context))
				.as("ApplicationContext registered with shutdown hook");
		}

	}

}