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Cassandra support for Spring Data
/*
* Copyright 2019-2020 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
*
* https://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 java.lang.annotation.Annotation;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.context.annotation.ImportBeanDefinitionRegistrar;
import org.springframework.core.type.AnnotationMetadata;
import org.springframework.data.auditing.IsNewAwareAuditingHandler;
import org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport;
import org.springframework.data.auditing.config.AuditingConfiguration;
import org.springframework.data.cassandra.core.convert.MappingCassandraConverter;
import org.springframework.data.cassandra.core.mapping.CassandraPersistentEntity;
import org.springframework.data.cassandra.core.mapping.CassandraPersistentProperty;
import org.springframework.data.cassandra.core.mapping.event.AuditingEntityCallback;
import org.springframework.data.cassandra.core.mapping.event.ReactiveAuditingEntityCallback;
import org.springframework.data.config.ParsingUtils;
import org.springframework.data.mapping.context.MappingContext;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;
/**
* {@link ImportBeanDefinitionRegistrar} to enable {@link EnableCassandraAuditing} annotation.
*
* @author Mark Paluch
* @since 2.2
*/
class CassandraAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
private static boolean PROJECT_REACTOR_AVAILABLE = ClassUtils.isPresent("reactor.core.publisher.Mono",
CassandraAuditingRegistrar.class.getClassLoader());
/*
* (non-Javadoc)
* @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAnnotation()
*/
@Override
protected Class getAnnotation() {
return EnableCassandraAuditing.class;
}
/*
* (non-Javadoc)
* @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAuditingHandlerBeanName()
*/
@Override
protected String getAuditingHandlerBeanName() {
return "cassandraAuditingHandler";
}
/*
* (non-Javadoc)
* @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#registerBeanDefinitions(org.springframework.core.type.AnnotationMetadata, org.springframework.beans.factory.support.BeanDefinitionRegistry)
*/
@Override
public void registerBeanDefinitions(AnnotationMetadata annotationMetadata, BeanDefinitionRegistry registry) {
Assert.notNull(annotationMetadata, "AnnotationMetadata must not be null!");
Assert.notNull(registry, "BeanDefinitionRegistry must not be null!");
super.registerBeanDefinitions(annotationMetadata, registry);
}
/*
* (non-Javadoc)
* @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAuditHandlerBeanDefinitionBuilder(org.springframework.data.auditing.config.AuditingConfiguration)
*/
@Override
protected BeanDefinitionBuilder getAuditHandlerBeanDefinitionBuilder(AuditingConfiguration configuration) {
Assert.notNull(configuration, "AuditingConfiguration must not be null!");
BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(IsNewAwareAuditingHandler.class);
BeanDefinitionBuilder definition = BeanDefinitionBuilder.genericBeanDefinition(CassandraMappingContextLookup.class);
definition.setAutowireMode(AbstractBeanDefinition.AUTOWIRE_CONSTRUCTOR);
builder.addConstructorArgValue(definition.getBeanDefinition());
return configureDefaultAuditHandlerAttributes(configuration, builder);
}
/*
* (non-Javadoc)
* @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#registerAuditListener(org.springframework.beans.factory.config.BeanDefinition, org.springframework.beans.factory.support.BeanDefinitionRegistry)
*/
@Override
protected void registerAuditListenerBeanDefinition(BeanDefinition auditingHandlerDefinition,
BeanDefinitionRegistry registry) {
Assert.notNull(auditingHandlerDefinition, "BeanDefinition must not be null!");
Assert.notNull(registry, "BeanDefinitionRegistry must not be null!");
BeanDefinitionBuilder listenerBeanDefinitionBuilder = BeanDefinitionBuilder
.rootBeanDefinition(AuditingEntityCallback.class);
listenerBeanDefinitionBuilder
.addConstructorArgValue(ParsingUtils.getObjectFactoryBeanDefinition(getAuditingHandlerBeanName(), registry));
registerInfrastructureBeanWithId(listenerBeanDefinitionBuilder.getBeanDefinition(),
AuditingEntityCallback.class.getName(), registry);
if (PROJECT_REACTOR_AVAILABLE) {
registerReactiveAuditingEntityCallback(registry, auditingHandlerDefinition.getSource());
}
}
private void registerReactiveAuditingEntityCallback(BeanDefinitionRegistry registry, Object source) {
BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(ReactiveAuditingEntityCallback.class);
builder.addConstructorArgValue(ParsingUtils.getObjectFactoryBeanDefinition(getAuditingHandlerBeanName(), registry));
builder.getRawBeanDefinition().setSource(source);
registerInfrastructureBeanWithId(builder.getBeanDefinition(), ReactiveAuditingEntityCallback.class.getName(),
registry);
}
/**
* Simple helper to be able to wire the {@link MappingContext} from a
* {@link org.springframework.data.cassandra.core.convert.MappingCassandraConverter} bean available in the application
* context.
*/
static class CassandraMappingContextLookup
implements FactoryBean, CassandraPersistentProperty>> {
private final MappingCassandraConverter converter;
/**
* Creates a new {@link CassandraMappingContextLookup} for the given {@link MappingCassandraConverter}.
*
* @param converter must not be {@literal null}.
*/
public CassandraMappingContextLookup(MappingCassandraConverter converter) {
this.converter = converter;
}
/*
* (non-Javadoc)
* @see org.springframework.beans.factory.FactoryBean#getObject()
*/
@Override
public MappingContext, CassandraPersistentProperty> getObject()
throws Exception {
return converter.getMappingContext();
}
/*
* (non-Javadoc)
* @see org.springframework.beans.factory.FactoryBean#getObjectType()
*/
@Override
public Class getObjectType() {
return MappingContext.class;
}
/*
* (non-Javadoc)
* @see org.springframework.beans.factory.FactoryBean#isSingleton()
*/
@Override
public boolean isSingleton() {
return true;
}
}
}