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Cassandra support for Spring Data
/*
* Copyright 2013-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.cassandra.config;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryUtils;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.ListableBeanFactory;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
/**
* Utilities to lookup {@link BeanDefinition bean definitions} for a {@link ListableBeanFactory} and to conditionally
* register {@link BeanDefinition bean definitions}.
*
* @author Matthew Adams
* @author Mark Paluch
*/
class BeanDefinitionUtils {
/**
* Returns all {@link BeanDefinitionHolder}s with the given type.
*
* @param registry The {@link BeanDefinitionRegistry}, often the very same instance as the {@code factor} parameter.
* @param factory The {@link ListableBeanFactory}, often the very same instance as the {@code registry} parameter.
* @param type The required {@link BeanDefinition}'s type.
* @param includeNonSingletons Whether to include beans with scope other than {@code singleton}
* @param allowEagerInit Whether to allow eager initialization of beans.
* @return The {@link BeanDefinitionHolder}s -- never returns null.
* @see BeanFactoryUtils#beanNamesForTypeIncludingAncestors(ListableBeanFactory, Class, boolean, boolean)
*/
static BeanDefinitionHolder[] getBeanDefinitionsOfType(BeanDefinitionRegistry registry, ListableBeanFactory factory,
Class type, boolean includeNonSingletons, boolean allowEagerInit) {
String[] names = BeanFactoryUtils.beanNamesForTypeIncludingAncestors(factory, type, includeNonSingletons,
allowEagerInit);
if (names.length == 0) {
return new BeanDefinitionHolder[] {};
}
BeanDefinitionHolder[] array = new BeanDefinitionHolder[names.length];
for (int i = 0; i < names.length; i++) {
String name = names[i];
BeanDefinition beanDefinition = null;
while (beanDefinition == null) {
try {
beanDefinition = registry.getBeanDefinition(name);
} catch (NoSuchBeanDefinitionException x) {
if (FactoryBean.class.isAssignableFrom(type)) { // try unmanged BeanFactory-prefixed name
name = name.substring(BeanFactory.FACTORY_BEAN_PREFIX.length());
} else {
throw x;
}
}
}
array[i] = new BeanDefinitionHolder(beanDefinition, name);
}
return array;
}
}