Java ApplicationContextInitializer.initialize方法代码示例

import org.springframework.context.ApplicationContextInitializer; //导入方法依赖的package包/类
/**
 * Customize the {@link ConfigurableWebApplicationContext} created by this
 * ContextLoader after config locations have been supplied to the context
 * but before the context is <em>refreshed</em>.
 * <p>The default implementation {@linkplain #determineContextInitializerClasses(ServletContext)
 * determines} what (if any) context initializer classes have been specified through
 * {@linkplain #CONTEXT_INITIALIZER_CLASSES_PARAM context init parameters} and
 * {@linkplain ApplicationContextInitializer#initialize invokes each} with the
 * given web application context.
 * <p>Any {@code ApplicationContextInitializers} implementing
 * {@link org.springframework.core.Ordered Ordered} or marked with @{@link
 * org.springframework.core.annotation.Order Order} will be sorted appropriately.
 * @param sc the current servlet context
 * @param wac the newly created application context
 * @see #CONTEXT_INITIALIZER_CLASSES_PARAM
 * @see ApplicationContextInitializer#initialize(ConfigurableApplicationContext)
 */
protected void customizeContext(ServletContext sc, ConfigurableWebApplicationContext wac) {
	List<Class<ApplicationContextInitializer<ConfigurableApplicationContext>>> initializerClasses =
			determineContextInitializerClasses(sc);

	for (Class<ApplicationContextInitializer<ConfigurableApplicationContext>> initializerClass : initializerClasses) {
		Class<?> initializerContextClass =
				GenericTypeResolver.resolveTypeArgument(initializerClass, ApplicationContextInitializer.class);
		if (initializerContextClass != null) {
			Assert.isAssignable(initializerContextClass, wac.getClass(), String.format(
					"Could not add context initializer [%s] since its generic parameter [%s] " +
					"is not assignable from the type of application context used by this " +
					"context loader [%s]: ", initializerClass.getName(), initializerContextClass.getName(),
					wac.getClass().getName()));
		}
		this.contextInitializers.add(BeanUtils.instantiateClass(initializerClass));
	}

	AnnotationAwareOrderComparator.sort(this.contextInitializers);
	for (ApplicationContextInitializer<ConfigurableApplicationContext> initializer : this.contextInitializers) {
		initializer.initialize(wac);
	}
}
 

import org.springframework.context.ApplicationContextInitializer; //导入方法依赖的package包/类
/**
 * Customize the {@link ConfigurableWebApplicationContext} created by this
 * ContextLoader after config locations have been supplied to the context
 * but before the context is <em>refreshed</em>.
 * <p>The default implementation {@linkplain #determineContextInitializerClasses(ServletContext)
 * determines} what (if any) context initializer classes have been specified through
 * {@linkplain #CONTEXT_INITIALIZER_CLASSES_PARAM context init parameters} and
 * {@linkplain ApplicationContextInitializer#initialize invokes each} with the
 * given web application context.
 * <p>Any {@code ApplicationContextInitializers} implementing
 * {@link org.springframework.core.Ordered Ordered} or marked with @{@link
 * org.springframework.core.annotation.Order Order} will be sorted appropriately.
 * @param sc the current servlet context
 * @param wac the newly created application context
 * @see #createWebApplicationContext(ServletContext, ApplicationContext)
 * @see #CONTEXT_INITIALIZER_CLASSES_PARAM
 * @see ApplicationContextInitializer#initialize(ConfigurableApplicationContext)
 */
protected void customizeContext(ServletContext sc, ConfigurableWebApplicationContext wac) {
	List<Class<ApplicationContextInitializer<ConfigurableApplicationContext>>> initializerClasses =
			determineContextInitializerClasses(sc);
	if (initializerClasses.isEmpty()) {
		// no ApplicationContextInitializers have been declared -> nothing to do
		return;
	}

	ArrayList<ApplicationContextInitializer<ConfigurableApplicationContext>> initializerInstances =
			new ArrayList<ApplicationContextInitializer<ConfigurableApplicationContext>>();

	for (Class<ApplicationContextInitializer<ConfigurableApplicationContext>> initializerClass : initializerClasses) {
		Class<?> initializerContextClass =
				GenericTypeResolver.resolveTypeArgument(initializerClass, ApplicationContextInitializer.class);
		if (initializerContextClass != null) {
			Assert.isAssignable(initializerContextClass, wac.getClass(), String.format(
					"Could not add context initializer [%s] since its generic parameter [%s] " +
					"is not assignable from the type of application context used by this " +
					"context loader [%s]: ", initializerClass.getName(), initializerContextClass.getName(),
					wac.getClass().getName()));
		}
		initializerInstances.add(BeanUtils.instantiateClass(initializerClass));
	}

	AnnotationAwareOrderComparator.sort(initializerInstances);
	for (ApplicationContextInitializer<ConfigurableApplicationContext> initializer : initializerInstances) {
		initializer.initialize(wac);
	}
}
 

import org.springframework.context.ApplicationContextInitializer; //导入方法依赖的package包/类
public static SpringBatchApplicationContext instance(String jobPath) throws ClassNotFoundException {
    SpringBatchApplicationContext context = new SpringBatchApplicationContext();
    ApplicationContextInitializer initializer = new BatchApplicationContextInitializer();
    initializer.initialize(context);

    try{
        context.registerAnnotationClasses(Class.forName(jobPath));
    }catch (ClassNotFoundException cnfe){
        context.registerXmlClasses(jobPath);
    }

    context.refresh();
    return context;
}
 

import org.springframework.context.ApplicationContextInitializer; //导入方法依赖的package包/类
@SuppressWarnings("unchecked")
private void invokeApplicationContextInitializers(ConfigurableApplicationContext context,
		MergedContextConfiguration mergedConfig) {
	Set<Class<? extends ApplicationContextInitializer<? extends ConfigurableApplicationContext>>> initializerClasses = mergedConfig.getContextInitializerClasses();
	if (initializerClasses.isEmpty()) {
		// no ApplicationContextInitializers have been declared -> nothing to do
		return;
	}

	List<ApplicationContextInitializer<ConfigurableApplicationContext>> initializerInstances = new ArrayList<ApplicationContextInitializer<ConfigurableApplicationContext>>();
	Class<?> contextClass = context.getClass();

	for (Class<? extends ApplicationContextInitializer<? extends ConfigurableApplicationContext>> initializerClass : initializerClasses) {
		Class<?> initializerContextClass = GenericTypeResolver.resolveTypeArgument(initializerClass,
			ApplicationContextInitializer.class);
		Assert.isAssignable(initializerContextClass, contextClass, String.format(
			"Could not add context initializer [%s] since its generic parameter [%s] "
					+ "is not assignable from the type of application context used by this "
					+ "context loader [%s]: ", initializerClass.getName(), initializerContextClass.getName(),
			contextClass.getName()));
		initializerInstances.add((ApplicationContextInitializer<ConfigurableApplicationContext>) BeanUtils.instantiateClass(initializerClass));
	}

	AnnotationAwareOrderComparator.sort(initializerInstances);
	for (ApplicationContextInitializer<ConfigurableApplicationContext> initializer : initializerInstances) {
		initializer.initialize(context);
	}
}
 

import org.springframework.context.ApplicationContextInitializer; //导入方法依赖的package包/类
@SuppressWarnings({ "unchecked", "rawtypes" })
private void applyInitializers(ConfigurableApplicationContext context,
		List<ApplicationContextInitializer<?>> initializers) {
	Collections.sort(initializers, new AnnotationAwareOrderComparator());
	for (ApplicationContextInitializer initializer : initializers) {
		initializer.initialize(context);
	}
}
 

import org.springframework.context.ApplicationContextInitializer; //导入方法依赖的package包/类
/**
 * Apply any {@link ApplicationContextInitializer}s to the context before it is
 * refreshed.
 * @param context the configured ApplicationContext (not refreshed yet)
 * @see ConfigurableApplicationContext#refresh()
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
protected void applyInitializers(ConfigurableApplicationContext context) {
	for (ApplicationContextInitializer initializer : getInitializers()) {
		Class<?> requiredType = GenericTypeResolver.resolveTypeArgument(
				initializer.getClass(), ApplicationContextInitializer.class);
		Assert.isInstanceOf(requiredType, context, "Unable to call initializer.");
		initializer.initialize(context);
	}
}
 

import org.springframework.context.ApplicationContextInitializer; //导入方法依赖的package包/类
/**
 * Initialize a DispatcherServlet instance registering zero or more controller classes
 * and also providing additional bean definitions through a callback.
 */
@SuppressWarnings("serial")
protected WebApplicationContext initServlet(
		final ApplicationContextInitializer<GenericWebApplicationContext> initializer,
		final Class<?>... controllerClasses) throws ServletException {

	final GenericWebApplicationContext wac = new GenericWebApplicationContext();

	servlet = new DispatcherServlet() {
		@Override
		protected WebApplicationContext createWebApplicationContext(WebApplicationContext parent) {
			for (Class<?> clazz : controllerClasses) {
				wac.registerBeanDefinition(clazz.getSimpleName(), new RootBeanDefinition(clazz));
			}

			Class<?> mappingType = RequestMappingHandlerMapping.class;
			RootBeanDefinition beanDef = new RootBeanDefinition(mappingType);
			beanDef.getPropertyValues().add("removeSemicolonContent", "false");
			wac.registerBeanDefinition("handlerMapping", beanDef);

			Class<?> adapterType = RequestMappingHandlerAdapter.class;
			wac.registerBeanDefinition("handlerAdapter", new RootBeanDefinition(adapterType));

			Class<?> resolverType = ExceptionHandlerExceptionResolver.class;
			wac.registerBeanDefinition("requestMappingResolver", new RootBeanDefinition(resolverType));

			resolverType = ResponseStatusExceptionResolver.class;
			wac.registerBeanDefinition("responseStatusResolver", new RootBeanDefinition(resolverType));

			resolverType = DefaultHandlerExceptionResolver.class;
			wac.registerBeanDefinition("defaultResolver", new RootBeanDefinition(resolverType));

			if (initializer != null) {
				initializer.initialize(wac);
			}

			wac.refresh();
			return wac;
		}
	};

	servlet.init(new MockServletConfig());

	return wac;
}