/*
* Copyright 2012-2017 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.boot.autoconfigure.data.cassandra;
import java.util.List;
import com.datastax.driver.core.Cluster;
import com.datastax.driver.core.Session;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.boot.autoconfigure.AutoConfigurationPackages;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.cassandra.CassandraAutoConfiguration;
import org.springframework.boot.autoconfigure.cassandra.CassandraProperties;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.domain.EntityScanPackages;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.context.properties.bind.Binder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.data.cassandra.config.CassandraEntityClassScanner;
import org.springframework.data.cassandra.config.CassandraSessionFactoryBean;
import org.springframework.data.cassandra.config.SchemaAction;
import org.springframework.data.cassandra.convert.CassandraConverter;
import org.springframework.data.cassandra.convert.MappingCassandraConverter;
import org.springframework.data.cassandra.core.CassandraAdminOperations;
import org.springframework.data.cassandra.core.CassandraTemplate;
import org.springframework.data.cassandra.mapping.BasicCassandraMappingContext;
import org.springframework.data.cassandra.mapping.CassandraMappingContext;
import org.springframework.data.cassandra.mapping.SimpleUserTypeResolver;
import org.springframework.util.StringUtils;
/**
* {@link EnableAutoConfiguration Auto-configuration} for Spring Data's Cassandra support.
*
* @author Julien Dubois
* @author EddĂș MelĂ©ndez
* @author Mark Paluch
* @author Madhura Bhave
* @since 1.3.0
*/
@Configuration
@ConditionalOnClass({ Cluster.class, CassandraAdminOperations.class })
@EnableConfigurationProperties(CassandraProperties.class)
@AutoConfigureAfter(CassandraAutoConfiguration.class)
public class CassandraDataAutoConfiguration {
private final BeanFactory beanFactory;
private final CassandraProperties properties;
private final Cluster cluster;
private final Environment environment;
public CassandraDataAutoConfiguration(BeanFactory beanFactory,
CassandraProperties properties, Cluster cluster, Environment environment) {
this.beanFactory = beanFactory;
this.properties = properties;
this.cluster = cluster;
this.environment = environment;
}
@Bean
@ConditionalOnMissingBean
public CassandraMappingContext cassandraMapping() throws ClassNotFoundException {
BasicCassandraMappingContext context = new BasicCassandraMappingContext();
List<String> packages = EntityScanPackages.get(this.beanFactory)
.getPackageNames();
if (packages.isEmpty() && AutoConfigurationPackages.has(this.beanFactory)) {
packages = AutoConfigurationPackages.get(this.beanFactory);
}
if (!packages.isEmpty()) {
context.setInitialEntitySet(CassandraEntityClassScanner.scan(packages));
}
if (StringUtils.hasText(this.properties.getKeyspaceName())) {
context.setUserTypeResolver(new SimpleUserTypeResolver(this.cluster,
this.properties.getKeyspaceName()));
}
return context;
}
@Bean
@ConditionalOnMissingBean
public CassandraConverter cassandraConverter(CassandraMappingContext mapping) {
return new MappingCassandraConverter(mapping);
}
@Bean
@ConditionalOnMissingBean(Session.class)
public CassandraSessionFactoryBean cassandraSession(CassandraConverter converter)
throws Exception {
CassandraSessionFactoryBean session = new CassandraSessionFactoryBean();
session.setCluster(this.cluster);
session.setConverter(converter);
session.setKeyspaceName(this.properties.getKeyspaceName());
Binder binder = Binder.get(this.environment);
binder.bind("spring.data.cassandra.schema-action", SchemaAction.class)
.ifBound(session::setSchemaAction);
return session;
}
@Bean
@ConditionalOnMissingBean
public CassandraTemplate cassandraTemplate(Session session,
CassandraConverter converter) throws Exception {
return new CassandraTemplate(session, converter);
}
}