Java ListableBeanFactory.getBean方法代碼示例

import org.springframework.beans.factory.ListableBeanFactory; //導入方法依賴的package包/類
/**
 * @throws SQLException If Setup of emulation database failed, or if the
 *         application JDBC work fails.
 */
static public void main(String[] sa) throws SQLException {
    if (sa.length != 1) throw new IllegalArgumentException(SYNTAX_MSG);
    String authSpringFile = null;
    if (sa[0].equals("LDAP")) {
        authSpringFile = "ldapbeans.xml";
    } else if (sa[0].equals("JAAS")) {
        authSpringFile = "jaasbeans.xml";
    } else if (sa[0].equals("HsqldbSlave")) {
        authSpringFile = "slavebeans.xml";
    } else if (sa[0].equals("JAAS_LDAP")) {
        authSpringFile = "jaasldapbeans.xml";
    }
    if (authSpringFile == null)
        throw new IllegalArgumentException(SYNTAX_MSG);

    SpringExtAuth.prepMemoryDatabases(!sa[0].equals("HsqldbSlave"));
    ApplicationContext ctx =
        new ClassPathXmlApplicationContext("beandefs.xml", authSpringFile);
    ListableBeanFactory bf = (ListableBeanFactory) ctx;
    JdbcAppClass appBean = bf.getBean("appBean", JdbcAppClass.class);
    appBean.doJdbcWork();
}
 

import org.springframework.beans.factory.ListableBeanFactory; //導入方法依賴的package包/類
protected Scheduler findScheduler(String schedulerName) throws SchedulerException {
	if (this.beanFactory instanceof ListableBeanFactory) {
		ListableBeanFactory lbf = (ListableBeanFactory) this.beanFactory;
		String[] beanNames = lbf.getBeanNamesForType(Scheduler.class);
		for (String beanName : beanNames) {
			Scheduler schedulerBean = (Scheduler) lbf.getBean(beanName);
			if (schedulerName.equals(schedulerBean.getSchedulerName())) {
				return schedulerBean;
			}
		}
	}
	Scheduler schedulerInRepo = SchedulerRepository.getInstance().lookup(schedulerName);
	if (schedulerInRepo == null) {
		throw new IllegalStateException("No Scheduler named '" + schedulerName + "' found");
	}
	return schedulerInRepo;
}
 

import org.springframework.beans.factory.ListableBeanFactory; //導入方法依賴的package包/類
/**
 * Find an EntityManagerFactory with the given name in the given
 * Spring application context (represented as ListableBeanFactory).
 * <p>The specified unit name will be matched against the configured
 * persistence unit, provided that a discovered EntityManagerFactory
 * implements the {@link EntityManagerFactoryInfo} interface. If not,
 * the persistence unit name will be matched against the Spring bean name,
 * assuming that the EntityManagerFactory bean names follow that convention.
 * <p>If no unit name has been given, this method will search for a default
 * EntityManagerFactory through {@link ListableBeanFactory#getBean(Class)}.
 * @param beanFactory the ListableBeanFactory to search
 * @param unitName the name of the persistence unit (may be {@code null} or empty,
 * in which case a single bean of type EntityManagerFactory will be searched for)
 * @return the EntityManagerFactory
 * @throws NoSuchBeanDefinitionException if there is no such EntityManagerFactory in the context
 * @see EntityManagerFactoryInfo#getPersistenceUnitName()
 */
public static EntityManagerFactory findEntityManagerFactory(
		ListableBeanFactory beanFactory, String unitName) throws NoSuchBeanDefinitionException {

	Assert.notNull(beanFactory, "ListableBeanFactory must not be null");
	if (StringUtils.hasLength(unitName)) {
		// See whether we can find an EntityManagerFactory with matching persistence unit name.
		String[] candidateNames =
				BeanFactoryUtils.beanNamesForTypeIncludingAncestors(beanFactory, EntityManagerFactory.class);
		for (String candidateName : candidateNames) {
			EntityManagerFactory emf = (EntityManagerFactory) beanFactory.getBean(candidateName);
			if (emf instanceof EntityManagerFactoryInfo) {
				if (unitName.equals(((EntityManagerFactoryInfo) emf).getPersistenceUnitName())) {
					return emf;
				}
			}
		}
		// No matching persistence unit found - simply take the EntityManagerFactory
		// with the persistence unit name as bean name (by convention).
		return beanFactory.getBean(unitName, EntityManagerFactory.class);
	}
	else {
		// Find unique EntityManagerFactory bean in the context, falling back to parent contexts.
		return beanFactory.getBean(EntityManagerFactory.class);
	}
}
 

import org.springframework.beans.factory.ListableBeanFactory; //導入方法依賴的package包/類
/**
 * Register {@link DatastoreResolver} annotated beans as <code>datastore</code> {@link ExpressionResolver}s.
 * @param datastore Datastore to configure
 * @param datastoreBeanName Datastore bean name to configure
 * @param beanFactory Bean factory
 */
private static void configureDatastoreResolvers(Datastore datastore, String datastoreBeanName,
		ListableBeanFactory beanFactory) {
	final String[] beanNames = beanFactory.getBeanNamesForAnnotation(DatastoreResolver.class);
	if (beanNames != null && beanNames.length > 0) {
		for (String beanName : beanNames) {
			if (!ExpressionResolver.class.isAssignableFrom(beanFactory.getType(beanName))) {
				throw new BeanNotOfRequiredTypeException(beanName, ExpressionResolver.class,
						beanFactory.getType(beanName));
			}
			DatastoreResolver dr = beanFactory.findAnnotationOnBean(beanName, DatastoreResolver.class);
			String datastoreRef = AnnotationUtils.getStringValue(dr.datastoreBeanName());
			if (datastoreRef == null || datastoreRef.equals(datastoreBeanName)) {
				// register resolver
				ExpressionResolver<?, ?> resolver = (ExpressionResolver<?, ?>) beanFactory.getBean(beanName);
				datastore.addExpressionResolver(resolver);
				LOGGER.debug(() -> "Registered expression resolver [" + resolver.getClass().getName()
						+ "] into Datastore with bean name [" + datastoreBeanName + "]");
			}
		}
	}
}
 

import org.springframework.beans.factory.ListableBeanFactory; //導入方法依賴的package包/類
/**
 * Attempts to find a Spring bean based of the specified class. This method first attempts to load a bean
 * following the default Spring auto-naming conventions (de-capitalizing class simple name). In case the bean with 
 * this name can't be found, the method returns the first available bean of this class.
 * <p/>
 * Such logic is required in order to enable this method to lookup components from legacy contexts. "Older" beans seems to 
 * have identifiers hard-coded in the bean definition file, while "newer" bean identifiers are auto-generated by Spring based on the
 * annotations.
 * 
 * @param clazz
 * 		Class of the bean to be looked up
 * @return
 * 		Returns the bean instance
 * @throws NoSuchBeanDefinitionException if there is no bean definition with the specified name
 */
@SuppressWarnings("unchecked")
public static <T> T getBean(Class<?> clazz) {
	// legacy code - I wonder if it's necessary since we are looking up a bean based directly on the class name anyways
	// but to keep legacy logic working properly attempt to locate component based on the Spring conventions 
	String className = WordUtils.uncapitalize(clazz.getSimpleName());
	if (beanFactory.containsBean(className))
		return (T) beanFactory.getBean(className);
	
	if (ListableBeanFactory.class.isAssignableFrom(beanFactory.getClass())) {
		ListableBeanFactory listableBeanFactory = (ListableBeanFactory) beanFactory;
		String[] beanNames = listableBeanFactory.getBeanNamesForType(clazz);
		if (beanNames.length > 0)
			return (T) listableBeanFactory.getBean(beanNames[0]);
	}
	throw new NoSuchBeanDefinitionException(clazz);
}
 

import org.springframework.beans.factory.ListableBeanFactory; //導入方法依賴的package包/類
private <T> List<Entry<String, T>> getOrderedBeansOfType(
		ListableBeanFactory beanFactory, Class<T> type, Set<?> excludes) {
	List<Entry<String, T>> beans = new ArrayList<Entry<String, T>>();
	Comparator<Entry<String, T>> comparator = new Comparator<Entry<String, T>>() {

		@Override
		public int compare(Entry<String, T> o1, Entry<String, T> o2) {
			return AnnotationAwareOrderComparator.INSTANCE.compare(o1.getValue(),
					o2.getValue());
		}

	};
	String[] names = beanFactory.getBeanNamesForType(type, true, false);
	Map<String, T> map = new LinkedHashMap<String, T>();
	for (String name : names) {
		if (!excludes.contains(name)) {
			T bean = beanFactory.getBean(name, type);
			if (!excludes.contains(bean)) {
				map.put(name, bean);
			}
		}
	}
	beans.addAll(map.entrySet());
	Collections.sort(beans, comparator);
	return beans;
}
 

import org.springframework.beans.factory.ListableBeanFactory; //導入方法依賴的package包/類
private Map<String, JobFactory> loadFactories(ListableBeanFactory beanFactory) {
    ImmutableMap.Builder<String, JobFactory> mb = ImmutableMap.builder();
    //load factory beans
    String[] factoryNames = beanFactory.getBeanNamesForType(JobFactory.class);
    for(String factoryName: factoryNames) {
        JobFactory factory = beanFactory.getBean(factoryName, JobFactory.class);
        if(factory == this) {
            // we do not want to load self
            continue;
        }
        Set<String> types = factory.getTypes();
        for(String type: types) {
            mb.put(type, factory);
        }
    }
    //load job beans
    String[] jobNames = beanFactory.getBeanNamesForAnnotation(JobBean.class);
    for(String jobName: jobNames) {
        Class<?> jobType = beanFactory.getType(jobName);
        JobDescription jd = descFactory.getFor(jobName);
        mb.put(jobName, new JobFactoryForBean(this, jobName, jobType, jd));
    }
    return mb.build();
}
 

import org.springframework.beans.factory.ListableBeanFactory; //導入方法依賴的package包/類
/**
 * Register {@link com.holonplatform.spring.DatastoreCommodityFactory} annotated beans as <code>datastore</code>
 * {@link DatastoreCommodityFactory}s.
 * @param datastore Datastore to configure
 * @param datastoreBeanName Datastore bean name to configure
 * @param beanFactory Bean factory
 */
@SuppressWarnings({ "unchecked", "rawtypes" })
private static void configureDatastoreCommodityFactories(Datastore datastore, String datastoreBeanName,
		ListableBeanFactory beanFactory) {
	if (datastore instanceof DatastoreCommodityRegistrar) {
		final Class<? extends DatastoreCommodityFactory> baseType = ((DatastoreCommodityRegistrar<?>) datastore)
				.getCommodityFactoryType();
		if (baseType != null) {
			final String[] beanNames = beanFactory
					.getBeanNamesForAnnotation(com.holonplatform.spring.DatastoreCommodityFactory.class);
			if (beanNames != null && beanNames.length > 0) {
				for (String beanName : beanNames) {
					com.holonplatform.spring.DatastoreCommodityFactory dr = beanFactory.findAnnotationOnBean(
							beanName, com.holonplatform.spring.DatastoreCommodityFactory.class);
					String datastoreRef = AnnotationUtils.getStringValue(dr.datastoreBeanName());
					if (datastoreRef == null || datastoreRef.equals(datastoreBeanName)) {
						if (!baseType.isAssignableFrom(beanFactory.getType(beanName))) {
							throw new BeanNotOfRequiredTypeException(beanName, baseType,
									beanFactory.getType(beanName));
						}
						// register resolver
						DatastoreCommodityFactory datastoreCommodityFactory = (DatastoreCommodityFactory) beanFactory
								.getBean(beanName);
						((DatastoreCommodityRegistrar) datastore).registerCommodity(datastoreCommodityFactory);
						LOGGER.debug(() -> "Registered factory [" + datastoreCommodityFactory.getClass().getName()
								+ "] into Datastore with bean name [" + datastoreBeanName + "]");
					}
				}
			}
		} else {
			LOGGER.debug(
					() -> "Datastore [" + datastore + "] does not declares a DatastoreCommodityFactory base type: "
							+ "skipping DatastoreCommodityFactory beans configuration");
		}
	} else {
		LOGGER.debug(() -> "Datastore [" + datastore
				+ "] is not a DatastoreCommodityRegistrar: skipping DatastoreCommodityFactory beans configuration");
	}
}
 

import org.springframework.beans.factory.ListableBeanFactory; //導入方法依賴的package包/類
/**
 * @return the {@link VaultTokenSupplier} for reactive Vault session management
 * adapting {@link ClientAuthentication} that also implement
 * {@link AuthenticationStepsFactory}.
 * @see AuthenticationStepsFactory
 */
@Bean
@ConditionalOnMissingBean(name = "vaultTokenSupplier")
public VaultTokenSupplier vaultTokenSupplier(ListableBeanFactory beanFactory) {

	Assert.notNull(beanFactory, "BeanFactory must not be null");

	String[] authStepsFactories = beanFactory
			.getBeanNamesForType(AuthenticationStepsFactory.class);

	if (!ObjectUtils.isEmpty(authStepsFactories)) {

		AuthenticationStepsFactory factory = beanFactory
				.getBean(AuthenticationStepsFactory.class);
		return createAuthenticationStepsOperator(factory);
	}

	String[] clientAuthentications = beanFactory
			.getBeanNamesForType(ClientAuthentication.class);

	if (!ObjectUtils.isEmpty(clientAuthentications)) {

		ClientAuthentication clientAuthentication = beanFactory
				.getBean(ClientAuthentication.class);

		if (clientAuthentication instanceof TokenAuthentication) {

			TokenAuthentication authentication = (TokenAuthentication) clientAuthentication;
			return () -> Mono.just(authentication.login());
		}

		if (clientAuthentication instanceof AuthenticationStepsFactory) {
			return createAuthenticationStepsOperator((AuthenticationStepsFactory) clientAuthentication);
		}

		throw new IllegalStateException(
				String.format(
						"Cannot construct VaultTokenSupplier from %s. "
								+ "ClientAuthentication must implement AuthenticationStepsFactory or be TokenAuthentication",
						clientAuthentication));
	}

	throw new IllegalStateException(
			"Cannot construct VaultTokenSupplier. Please configure VaultTokenSupplier bean named vaultTokenSupplier.");
}