com.holonplatform.spring.internal

Class BeanRegistryUtils

java.lang.Object

com.holonplatform.spring.internal.BeanRegistryUtils

All Implemented Interfaces:

Serializable

public final class BeanRegistryUtils
extends Object
implements Serializable

Utility class for Spring bean registration related operations.

Since:

5.0.0

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
static String	buildBeanName(String dataContextId, String name) Build Spring bean name using optional data context id.
static <T> T	getAnnotationValue(Map<String,Object> attributes, String key, T defaultValue) Get the value of an annotation attribute
static Class<?>	getBeanClass(String beanName, org.springframework.beans.factory.config.BeanDefinition beanDefinition, org.springframework.beans.factory.config.ConfigurableListableBeanFactory beanFactory, ClassLoader classLoader) Try to obtain the actual bean class of the bean with given name.
static List<String>	getBeanNames(org.springframework.beans.factory.ListableBeanFactory beanFactory, Class<?> type) Get all the bean names of given type in given bean factory.
static Set<String>	getBeanNamesOfTypes(org.springframework.beans.factory.ListableBeanFactory beanFactory, Class<?>... types) Get the bean names from provided registry of given types.
static List<String[]>	getBeanNamesWithDataContextId(org.springframework.beans.factory.support.BeanDefinitionRegistry registry, org.springframework.beans.factory.ListableBeanFactory beanFactory, Class<?>... types) Get the [name,data context id] pairs of the bean definition of given types.
static Set<String>	getDataContextBeanNames(org.springframework.beans.factory.support.BeanDefinitionRegistry registry, org.springframework.beans.factory.ListableBeanFactory beanFactory, String dataContextId, Class<?>... types) Get the bean names from provided registry of given types and associated to given data context id.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

buildBeanName

public static String buildBeanName(String dataContextId,
                                   String name)

Build Spring bean name using optional data context id. If the given data context id is not null/empty, the bean name is composed using default name, an underscore character and the data context id as suffix.

For example, if default name is myname and the data context id is test, this method will return myname_test.

Parameters:

dataContextId - Data context id. May be null.

name - Default bean name

Returns:

Bean name with data context id suffix (prepended by an underscore), if data context id is not null. Simple bean name otherwise.

getBeanNames

public static List<String> getBeanNames(org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                        Class<?> type)

Get all the bean names of given type in given bean factory.

Parameters:

beanFactory - Bean factory (not null)

type - Bean type (not null)

Returns:

The list of all bean names of given type in given bean factory, an empty list if none.

getBeanNamesOfTypes

public static Set<String> getBeanNamesOfTypes(org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                              Class<?>... types)

Get the bean names from provided registry of given types.

Parameters:

beanFactory - Bean factory

types - Bean types to take into account

Returns:

Names of the beans of given types, empty if none

getDataContextBeanNames

public static Set<String> getDataContextBeanNames(org.springframework.beans.factory.support.BeanDefinitionRegistry registry,
                                                  org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                                  String dataContextId,
                                                  Class<?>... types)

Get the bean names from provided registry of given types and associated to given data context id.

Parameters:

registry - Bean registry

beanFactory - Bean factory

dataContextId - The data context id, if null the name of any bean with given types will be returned

types - Bean types to take into account

Returns:

Names of the beans of given types associated to given data context id, empty if none

getBeanNamesWithDataContextId

public static List<String[]> getBeanNamesWithDataContextId(org.springframework.beans.factory.support.BeanDefinitionRegistry registry,
                                                           org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                                           Class<?>... types)

Get the [name,data context id] pairs of the bean definition of given types.

Parameters:

registry - Bean definitions registry

beanFactory - Bean factory

types - Bean types to take into account

Returns:

A list of [name,data context id] pairs of the bean definition of given types, empty if none

getBeanClass

public static Class<?> getBeanClass(String beanName,
                                    org.springframework.beans.factory.config.BeanDefinition beanDefinition,
                                    org.springframework.beans.factory.config.ConfigurableListableBeanFactory beanFactory,
                                    ClassLoader classLoader)

Try to obtain the actual bean class of the bean with given name.

Parameters:

beanName - Bean name

beanDefinition - Optional bean definition

beanFactory - Bean factory (not null)

classLoader - ClassLoader to use

Returns:

The bean class, or null if cannot be detected

getAnnotationValue

public static <T> T getAnnotationValue(Map<String,Object> attributes,
                                       String key,
                                       T defaultValue)

Get the value of an annotation attribute

Type Parameters:

T - Default value type

Parameters:

attributes - Annotation attributes

key - Attribute name

defaultValue - Default value to return when attribute has no value

Returns:

Annotation attribute value