Java Code Examples for org.springframework.context.ConfigurableApplicationContext#getBeanFactory()

@Test
public void testWait() throws InterruptedException {
    ConfigurableApplicationContext context = new GenericApplicationContext();
    ConfigurableListableBeanFactory factory = context.getBeanFactory();
    Object bean = new Object();
    factory.registerSingleton("test", bean);
    context.refresh();
    Locator get1 = new Locator(SpringBeanLocator.getInstance());
    Locator get2 = new Locator(SpringBeanLocator.getInstance());
    get1.start();
    get2.start();

    // Increase the chances that the other threads will have run
    Thread.yield();

    SpringBeanLocator.setApplicationContext(context);
    get1.join(10000);
    get2.join(10000);
    // Cross thread assertions
    Assert.assertTrue(get1.good);
    Assert.assertTrue(get2.good);
}
 

@Test
public void testWait() throws InterruptedException {
    ConfigurableApplicationContext context = new GenericApplicationContext();
    ConfigurableListableBeanFactory factory = context.getBeanFactory();
    Object bean = new Object();
    factory.registerSingleton("test", bean);
    context.refresh();
    Locator get1 = new Locator(SpringBeanLocator.getInstance());
    Locator get2 = new Locator(SpringBeanLocator.getInstance());
    get1.start();
    get2.start();

    // Increase the chances that the other threads will have run
    Thread.yield();

    SpringBeanLocator.setApplicationContext(context);
    get1.join(10000);
    get2.join(10000);
    // Cross thread assertions
    Assert.assertTrue(get1.good);
    Assert.assertTrue(get2.good);
}
 

/**
 * 动态产生Docket分组信息
 *
 * @return
 */
@Autowired
public void dynamicConfiguration() {
    ConfigurableApplicationContext context = (ConfigurableApplicationContext) applicationContext;
    DefaultListableBeanFactory beanFactory = (DefaultListableBeanFactory) context.getBeanFactory();

    String systemName = "Microservice PaaS";
    ApiInfoBuilder apiInfoBuilder = new ApiInfoBuilder()
            .description("mPaas前端后端对应接口")
            .version("1.0.1")
            .license("Code Farmer Framework(iByte) Org.");

    Map<String, ModuleMappingInfo> moduleInfo = mappingHelper.getMappingInfos();
    for (Map.Entry<String, ModuleMappingInfo> entry : moduleInfo.entrySet()) {
        beanFactory.registerSingleton(entry.getKey(), new Docket(DocumentationType.SWAGGER_2)
                .groupName(entry.getKey())
                .apiInfo(apiInfoBuilder.title(systemName + NamingConstant.DOT + entry.getKey()).build())
                .select()
                .apis(genSubPackage(entry.getKey()))
                .paths(Predicates.or(PathSelectors.ant(NamingConstant.PATH_PREFIX_DATA + "/**"),
                        PathSelectors.ant(NamingConstant.PATH_PREFIX_API + "/**")))
                .build());
    }
}
 

@SuppressWarnings("unchecked")
PartitionAwareFunctionWrapper(FunctionInvocationWrapper function, ConfigurableApplicationContext context, ProducerProperties producerProperties) {
	this.function = function;
	if (producerProperties != null && producerProperties.isPartitioned()) {
		StandardEvaluationContext evaluationContext = ExpressionUtils.createStandardEvaluationContext(context.getBeanFactory());
		PartitionHandler partitionHandler = new PartitionHandler(evaluationContext, producerProperties, context.getBeanFactory());

		this.outputMessageEnricher = outputMessage -> {
			int partitionId = partitionHandler.determinePartition(outputMessage);
			return MessageBuilder
				.fromMessage(outputMessage)
				.setHeader(BinderHeaders.PARTITION_HEADER, partitionId).build();
		};
	}
	else {
		this.outputMessageEnricher = null;
	}
}
 

/**
 * 动态注册bean
 * 
 * @author JohnGao
 */
public <T> void register(String beanName, Class<T> classType,
		Map<String, String> values) {
	ConfigurableApplicationContext configurableApplicationContext = (ConfigurableApplicationContext) aContext;
	DefaultListableBeanFactory defaultListableBeanFactory = (DefaultListableBeanFactory) configurableApplicationContext
			.getBeanFactory();
	if (defaultListableBeanFactory.isBeanNameInUse(beanName)) {
		defaultListableBeanFactory.removeBeanDefinition(beanName);
		logger.info("beanName-->" + beanName + "成功删除");
	}
	BeanDefinitionBuilder beanDefinitionBuilder = BeanDefinitionBuilder
			.genericBeanDefinition(classType);
	for (String key : values.keySet())
		beanDefinitionBuilder.addPropertyValue(key, values.get(key));
	defaultListableBeanFactory.registerBeanDefinition(beanName,
			beanDefinitionBuilder.getRawBeanDefinition());
	logger.info("beanName-->" + beanName + "成功注册");
}
 

/**
 * 注册bean
 * 
 * @author gaoxianglong
 * 
 * @param nodePathValue
 *            value 从配置中心订阅的配置信息
 * 
 * @param resourceType
 *            注册中心类型
 * 
 * @return void
 */
public static void register(String value, String resourceType) {
	if (null == aContext || null == value)
		return;
	ConfigurableApplicationContext cfgContext = (ConfigurableApplicationContext) aContext;
	DefaultListableBeanFactory beanfactory = (DefaultListableBeanFactory) cfgContext.getBeanFactory();
	/*
	 * 将配置中心获取的配置信息与当前上下文中的ioc容器进行合并,不需要手动移除之前的bean,
	 * 调用loadBeanDefinitions()方法时会进行自动移除
	 */
	new XmlBeanDefinitionReader(beanfactory).loadBeanDefinitions(new ByteArrayResource(value.getBytes()));
	final String defaultBeanName = "jdbcTemplate";
	String[] beanNames = beanfactory.getBeanDefinitionNames();
	for (String beanName : beanNames) {
		/* 替换上下文中缺省beanName为jdbcTemplate的JdbcTemplate的引用 */
		if (defaultBeanName.equals(beanName)) {
			GetJdbcTemplate.setJdbcTemplate((JdbcTemplate) beanfactory.getBean(defaultBeanName));
		} else {
			/* 实例化所有所有未实例化的bean */
			beanfactory.getBean(beanName);
		}
	}
}
 

/**
 * Load the application context using a single classloader
 * @param ac The spring application context
 * @param config a list of configurations represented as List of resources
 * @param loader the classloader to use
 */
public void loadComponent(ConfigurableApplicationContext ac,
		List<Resource> config, ClassLoader loader) {
	ClassLoader current = Thread.currentThread().getContextClassLoader();

	Thread.currentThread().setContextClassLoader(loader);

	try {

		// make a reader
		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(
				(BeanDefinitionRegistry) ac.getBeanFactory());

		// In Spring 2, classes aren't loaded during bean parsing unless
		// this
		// classloader property is set.
		reader.setBeanClassLoader(loader);

		reader.loadBeanDefinitions(config.toArray(new Resource[0]));
	} catch (Throwable t) {
		log.warn("loadComponentPackage: exception loading: " + config
				+ " : " + t, t);
	} finally {
		// restore the context loader
		Thread.currentThread().setContextClassLoader(current);
	}

}
 

private void setUpRequestContextIfNecessary(TestContext testContext) {
	if (notAnnotatedWithWebAppConfiguration(testContext) || alreadyPopulatedRequestContextHolder(testContext)) {
		return;
	}

	ApplicationContext context = testContext.getApplicationContext();

	if (context instanceof WebApplicationContext) {
		WebApplicationContext wac = (WebApplicationContext) context;
		ServletContext servletContext = wac.getServletContext();
		Assert.state(servletContext instanceof MockServletContext, String.format(
			"The WebApplicationContext for test context %s must be configured with a MockServletContext.",
			testContext));

		if (logger.isDebugEnabled()) {
			logger.debug(String.format(
				"Setting up MockHttpServletRequest, MockHttpServletResponse, ServletWebRequest, and RequestContextHolder for test context %s.",
				testContext));
		}

		MockServletContext mockServletContext = (MockServletContext) servletContext;
		MockHttpServletRequest request = new MockHttpServletRequest(mockServletContext);
		request.setAttribute(CREATED_BY_THE_TESTCONTEXT_FRAMEWORK, Boolean.TRUE);
		MockHttpServletResponse response = new MockHttpServletResponse();
		ServletWebRequest servletWebRequest = new ServletWebRequest(request, response);

		RequestContextHolder.setRequestAttributes(servletWebRequest);
		testContext.setAttribute(POPULATED_REQUEST_CONTEXT_HOLDER_ATTRIBUTE, Boolean.TRUE);
		testContext.setAttribute(RESET_REQUEST_CONTEXT_HOLDER_ATTRIBUTE, Boolean.TRUE);

		if (wac instanceof ConfigurableApplicationContext) {
			@SuppressWarnings("resource")
			ConfigurableApplicationContext configurableApplicationContext = (ConfigurableApplicationContext) wac;
			ConfigurableListableBeanFactory bf = configurableApplicationContext.getBeanFactory();
			bf.registerResolvableDependency(MockHttpServletResponse.class, response);
			bf.registerResolvableDependency(ServletWebRequest.class, servletWebRequest);
		}
	}
}
 

private void setUpRequestContextIfNecessary(TestContext testContext) {
	if (!isActivated(testContext) || alreadyPopulatedRequestContextHolder(testContext)) {
		return;
	}

	ApplicationContext context = testContext.getApplicationContext();

	if (context instanceof WebApplicationContext) {
		WebApplicationContext wac = (WebApplicationContext) context;
		ServletContext servletContext = wac.getServletContext();
		Assert.state(servletContext instanceof MockServletContext, () -> String.format(
					"The WebApplicationContext for test context %s must be configured with a MockServletContext.",
					testContext));

		if (logger.isDebugEnabled()) {
			logger.debug(String.format(
					"Setting up MockHttpServletRequest, MockHttpServletResponse, ServletWebRequest, and RequestContextHolder for test context %s.",
					testContext));
		}

		MockServletContext mockServletContext = (MockServletContext) servletContext;
		MockHttpServletRequest request = new MockHttpServletRequest(mockServletContext);
		request.setAttribute(CREATED_BY_THE_TESTCONTEXT_FRAMEWORK, Boolean.TRUE);
		MockHttpServletResponse response = new MockHttpServletResponse();
		ServletWebRequest servletWebRequest = new ServletWebRequest(request, response);

		RequestContextHolder.setRequestAttributes(servletWebRequest);
		testContext.setAttribute(POPULATED_REQUEST_CONTEXT_HOLDER_ATTRIBUTE, Boolean.TRUE);
		testContext.setAttribute(RESET_REQUEST_CONTEXT_HOLDER_ATTRIBUTE, Boolean.TRUE);

		if (wac instanceof ConfigurableApplicationContext) {
			@SuppressWarnings("resource")
			ConfigurableApplicationContext configurableApplicationContext = (ConfigurableApplicationContext) wac;
			ConfigurableListableBeanFactory bf = configurableApplicationContext.getBeanFactory();
			bf.registerResolvableDependency(MockHttpServletResponse.class, response);
			bf.registerResolvableDependency(ServletWebRequest.class, servletWebRequest);
		}
	}
}
 

@Override
public void customizeContext(ConfigurableApplicationContext context, MergedContextConfiguration mergedConfig) {
    ConfigurableListableBeanFactory beanFactory = context.getBeanFactory();

    if (beanFactory instanceof BeanDefinitionRegistry) {
        registerWebTestClient((BeanDefinitionRegistry) beanFactory);
    }
}
 

/**
 * 注册bean
 *
 * @param clazz
 */
public static void register(Class clazz) {
    ConfigurableApplicationContext context = getContext();
    if (context != null) {
        DefaultListableBeanFactory beanFactory = (DefaultListableBeanFactory) context.getBeanFactory();
        String beanName = Stringer.firstLowerCase(clazz.getSimpleName());
        beanFactory.registerBeanDefinition(beanName, BeanDefinitionBuilder.rootBeanDefinition(clazz).getBeanDefinition());
    }
}
 

@Test
public void testBadUserDeclarationsFatal() throws Exception {
	RabbitTestBinder binder = getBinder();
	ConfigurableApplicationContext context = binder.getApplicationContext();
	ConfigurableListableBeanFactory bf = context.getBeanFactory();
	bf.registerSingleton("testBadUserDeclarationsFatal",
			new Queue("testBadUserDeclarationsFatal", false));
	bf.registerSingleton("binder", binder);
	RabbitExchangeQueueProvisioner provisioner = TestUtils.getPropertyValue(binder,
			"binder.provisioningProvider", RabbitExchangeQueueProvisioner.class);
	bf.initializeBean(provisioner, "provisioner");
	bf.registerSingleton("provisioner", provisioner);
	context.addApplicationListener(provisioner);
	RabbitAdmin admin = new RabbitAdmin(rabbitAvailableRule.getResource());
	admin.declareQueue(new Queue("testBadUserDeclarationsFatal"));
	// reset the connection and configure the "user" admin to auto declare queues...
	rabbitAvailableRule.getResource().resetConnection();
	bf.initializeBean(admin, "rabbitAdmin");
	bf.registerSingleton("rabbitAdmin", admin);
	admin.afterPropertiesSet();
	// the mis-configured queue should be fatal
	Binding<?> binding = null;
	try {
		binding = binder.bindConsumer("input", "baddecls",
				this.createBindableChannel("input", new BindingProperties()),
				createConsumerProperties());
		fail("Expected exception");
	}
	catch (BinderException e) {
		assertThat(e.getCause()).isInstanceOf(AmqpIOException.class);
	}
	finally {
		admin.deleteQueue("testBadUserDeclarationsFatal");
		if (binding != null) {
			binding.unbind();
		}
	}
}
 

/**
 * Create a new ApplicationContextAwareProcessor for the given context.
 */
public ApplicationContextAwareProcessor(ConfigurableApplicationContext applicationContext) {
	this.applicationContext = applicationContext;
	this.embeddedValueResolver = new EmbeddedValueResolver(applicationContext.getBeanFactory());
}
 

/**
 * Actually generate a JSON snapshot of the beans in the given ApplicationContexts.
 * <p>This implementation doesn't use any JSON parsing libraries in order to avoid
 * third-party library dependencies. It produces an array of context description
 * objects, each containing a context and parent attribute as well as a beans
 * attribute with nested bean description objects. Each bean object contains a
 * bean, scope, type and resource attribute, as well as a dependencies attribute
 * with a nested array of bean names that the present bean depends on.
 * @param contexts the set of ApplicationContexts
 * @return the JSON document
 */
protected String generateJson(Set<ConfigurableApplicationContext> contexts) {
	StringBuilder result = new StringBuilder("[\n");
	for (Iterator<ConfigurableApplicationContext> it = contexts.iterator(); it.hasNext();) {
		ConfigurableApplicationContext context = it.next();
		result.append("{\n\"context\": \"").append(context.getId()).append("\",\n");
		if (context.getParent() != null) {
			result.append("\"parent\": \"").append(context.getParent().getId()).append("\",\n");
		}
		else {
			result.append("\"parent\": null,\n");
		}
		result.append("\"beans\": [\n");
		ConfigurableListableBeanFactory bf = context.getBeanFactory();
		String[] beanNames = bf.getBeanDefinitionNames();
		boolean elementAppended = false;
		for (String beanName : beanNames) {
			BeanDefinition bd = bf.getBeanDefinition(beanName);
			if (isBeanEligible(beanName, bd, bf)) {
				if (elementAppended) {
					result.append(",\n");
				}
				result.append("{\n\"bean\": \"").append(beanName).append("\",\n");
				result.append("\"aliases\": ");
				appendArray(result, bf.getAliases(beanName));
				result.append(",\n");
				String scope = bd.getScope();
				if (!StringUtils.hasText(scope)) {
					scope = BeanDefinition.SCOPE_SINGLETON;
				}
				result.append("\"scope\": \"").append(scope).append("\",\n");
				Class<?> beanType = bf.getType(beanName);
				if (beanType != null) {
					result.append("\"type\": \"").append(beanType.getName()).append("\",\n");
				}
				else {
					result.append("\"type\": null,\n");
				}
				result.append("\"resource\": \"").append(getEscapedResourceDescription(bd)).append("\",\n");
				result.append("\"dependencies\": ");
				appendArray(result, bf.getDependenciesForBean(beanName));
				result.append("\n}");
				elementAppended = true;
			}
		}
		result.append("]\n");
		result.append("}");
		if (it.hasNext()) {
			result.append(",\n");
		}
	}
	result.append("]");
	return result.toString();
}
 

/**
 * Actually generate a JSON snapshot of the beans in the given ApplicationContexts.
 * <p>This implementation doesn't use any JSON parsing libraries in order to avoid
 * third-party library dependencies. It produces an array of context description
 * objects, each containing a context and parent attribute as well as a beans
 * attribute with nested bean description objects. Each bean object contains a
 * bean, scope, type and resource attribute, as well as a dependencies attribute
 * with a nested array of bean names that the present bean depends on.
 * @param contexts the set of ApplicationContexts
 * @return the JSON document
 */
protected String generateJson(Set<ConfigurableApplicationContext> contexts) {
	StringBuilder result = new StringBuilder("[\n");
	for (Iterator<ConfigurableApplicationContext> it = contexts.iterator(); it.hasNext();) {
		ConfigurableApplicationContext context = it.next();
		result.append("{\n\"context\": \"").append(context.getId()).append("\",\n");
		if (context.getParent() != null) {
			result.append("\"parent\": \"").append(context.getParent().getId()).append("\",\n");
		}
		else {
			result.append("\"parent\": null,\n");
		}
		result.append("\"beans\": [\n");
		ConfigurableListableBeanFactory bf = context.getBeanFactory();
		String[] beanNames = bf.getBeanDefinitionNames();
		boolean elementAppended = false;
		for (String beanName : beanNames) {
			BeanDefinition bd = bf.getBeanDefinition(beanName);
			if (isBeanEligible(beanName, bd, bf)) {
				if (elementAppended) {
					result.append(",\n");
				}
				result.append("{\n\"bean\": \"").append(beanName).append("\",\n");
				result.append("\"aliases\": ");
				appendArray(result, bf.getAliases(beanName));
				result.append(",\n");
				String scope = bd.getScope();
				if (!StringUtils.hasText(scope)) {
					scope = BeanDefinition.SCOPE_SINGLETON;
				}
				result.append("\"scope\": \"").append(scope).append("\",\n");
				Class<?> beanType = bf.getType(beanName);
				if (beanType != null) {
					result.append("\"type\": \"").append(beanType.getName()).append("\",\n");
				}
				else {
					result.append("\"type\": null,\n");
				}
				result.append("\"resource\": \"").append(getEscapedResourceDescription(bd)).append("\",\n");
				result.append("\"dependencies\": ");
				appendArray(result, bf.getDependenciesForBean(beanName));
				result.append("\n}");
				elementAppended = true;
			}
		}
		result.append("]\n");
		result.append("}");
		if (it.hasNext()) {
			result.append(",\n");
		}
	}
	result.append("]");
	return result.toString();
}
 

/**
 * Create a new ApplicationContextAwareProcessor for the given context.
 */
public ApplicationContextAwareProcessor(ConfigurableApplicationContext applicationContext) {
	this.applicationContext = applicationContext;
	this.embeddedValueResolver = new EmbeddedValueResolver(applicationContext.getBeanFactory());
}
 

private static List<HandlerMethodArgumentResolver> initResolvers(ArgumentResolverConfigurer customResolvers,
		ReactiveAdapterRegistry reactiveRegistry, ConfigurableApplicationContext context,
		boolean supportDataBinding, List<HttpMessageReader<?>> readers) {

	ConfigurableListableBeanFactory beanFactory = context.getBeanFactory();
	boolean requestMappingMethod = !readers.isEmpty() && supportDataBinding;

	// Annotation-based...
	List<HandlerMethodArgumentResolver> result = new ArrayList<>();
	result.add(new RequestParamMethodArgumentResolver(beanFactory, reactiveRegistry, false));
	result.add(new RequestParamMapMethodArgumentResolver(reactiveRegistry));
	result.add(new PathVariableMethodArgumentResolver(beanFactory, reactiveRegistry));
	result.add(new PathVariableMapMethodArgumentResolver(reactiveRegistry));
	result.add(new MatrixVariableMethodArgumentResolver(beanFactory, reactiveRegistry));
	result.add(new MatrixVariableMapMethodArgumentResolver(reactiveRegistry));
	if (!readers.isEmpty()) {
		result.add(new RequestBodyArgumentResolver(readers, reactiveRegistry));
		result.add(new RequestPartMethodArgumentResolver(readers, reactiveRegistry));
	}
	if (supportDataBinding) {
		result.add(new ModelAttributeMethodArgumentResolver(reactiveRegistry, false));
	}
	result.add(new RequestHeaderMethodArgumentResolver(beanFactory, reactiveRegistry));
	result.add(new RequestHeaderMapMethodArgumentResolver(reactiveRegistry));
	result.add(new CookieValueMethodArgumentResolver(beanFactory, reactiveRegistry));
	result.add(new ExpressionValueMethodArgumentResolver(beanFactory, reactiveRegistry));
	result.add(new SessionAttributeMethodArgumentResolver(beanFactory, reactiveRegistry));
	result.add(new RequestAttributeMethodArgumentResolver(beanFactory, reactiveRegistry));

	// Type-based...
	if (!readers.isEmpty()) {
		result.add(new HttpEntityArgumentResolver(readers, reactiveRegistry));
	}
	result.add(new ModelArgumentResolver(reactiveRegistry));
	if (supportDataBinding) {
		result.add(new ErrorsMethodArgumentResolver(reactiveRegistry));
	}
	result.add(new ServerWebExchangeArgumentResolver(reactiveRegistry));
	result.add(new PrincipalArgumentResolver(reactiveRegistry));
	if (requestMappingMethod) {
		result.add(new SessionStatusMethodArgumentResolver());
	}
	result.add(new WebSessionArgumentResolver(reactiveRegistry));

	// Custom...
	result.addAll(customResolvers.getCustomResolvers());

	// Catch-all...
	result.add(new RequestParamMethodArgumentResolver(beanFactory, reactiveRegistry, true));
	if (supportDataBinding) {
		result.add(new ModelAttributeMethodArgumentResolver(reactiveRegistry, true));
	}

	return result;
}
 

private static BeanDefinitionRegistry getRegistry(ConfigurableApplicationContext applicationContext) {
	if (applicationContext instanceof BeanDefinitionRegistry) {
		return ((BeanDefinitionRegistry) applicationContext);
	}
	return ((BeanDefinitionRegistry) applicationContext.getBeanFactory());
}
 

private AtomikosDataSourceBean createXADataSource(String _name) {
    String head = "jees.jdbs.config." + _name + ".";
    String type = CommonConfig.getString( head + "dbtype" );
    String bean = _name + "XADataSource";
    Properties xaProperties = new Properties();

    xaProperties.setProperty("user", CommonConfig.getString(head + "user"));
    xaProperties.setProperty("password", CommonConfig.getString(head + "password"));
    xaProperties.setProperty("url", CommonConfig.getString(head + "url"));

    BeanDefinitionBuilder beanDefinitionBuilder =
            BeanDefinitionBuilder.rootBeanDefinition(AbsXADataSource.class);

    // 这里没有列举AbstractDataSourceBean的所有可用属性
    if( type.equalsIgnoreCase( "mysql" ) ) {
        xaProperties.setProperty("pinGlobalTxToPhysicalConnection",
                CommonConfig.getString(head + "pinGlobalTxToPhysicalConnection", "true"));

        beanDefinitionBuilder.addPropertyValue("uniqueResourceName",
                CommonConfig.getString( head + "uniqueResourceName" ));
        beanDefinitionBuilder.addPropertyValue("xaDataSourceClassName",
                CommonConfig.getString( head + "xaDataSourceClassName" ) );

        beanDefinitionBuilder.addPropertyValue("xaProperties", xaProperties);

        beanDefinitionBuilder.addPropertyValue("maxPoolSize",
                CommonConfig.getString( head + "maxPoolSize", "1" ));
        beanDefinitionBuilder.addPropertyValue("minPoolSize",
                CommonConfig.getString( head + "minPoolSize", "1" ));
        beanDefinitionBuilder.addPropertyValue("maxIdleTime",
                CommonConfig.getString( head + "maxIdleTime", "60" ));

        beanDefinitionBuilder.addPropertyValue("poolSize", CommonConfig.getString( head + "poolSize", "1" ) );
    }

    ConfigurableApplicationContext context = (ConfigurableApplicationContext) CommonContextHolder.getApplicationContext();
    DefaultListableBeanFactory beanFactory = (DefaultListableBeanFactory) context.getBeanFactory();

    beanFactory.registerBeanDefinition( bean, beanDefinitionBuilder.getBeanDefinition() );

    AbsXADataSource xaDataSource = CommonContextHolder.getBean( bean );
    log.debug("--创建AbsXADataSource[" + bean + "]。");



    return xaDataSource;
}
 

/**
 * 注册BeanDefinition
 * @param applicationContext    应用上下文
 * @param name                  bean name
 * @param clazz                 bean class
 * @param beanDefinition        BeanDefinition
 * @param <T>                   实体类型
 * @return  Bean
 */
public static <T> T registerBean(ConfigurableApplicationContext applicationContext, String name, Class<T> clazz, BeanDefinition beanDefinition) {
    BeanDefinitionRegistry beanFactory = (BeanDefinitionRegistry) applicationContext.getBeanFactory();
    beanFactory.registerBeanDefinition(name, beanDefinition);
    return applicationContext.getBean(name, clazz);
}