org.springframework.boot.autoconfigure.cassandra.CassandraAutoConfiguration Maven / Gradle / Ivy
/*
* Copyright 2012-2018 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.boot.autoconfigure.cassandra;
import java.time.Duration;
import java.util.List;
import com.datastax.driver.core.Cluster;
import com.datastax.driver.core.PoolingOptions;
import com.datastax.driver.core.QueryOptions;
import com.datastax.driver.core.SocketOptions;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.context.properties.PropertyMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.StringUtils;
/**
* {@link EnableAutoConfiguration Auto-configuration} for Cassandra.
*
* @author Julien Dubois
* @author Phillip Webb
* @author Eddú Meléndez
* @author Stephane Nicoll
* @since 1.3.0
*/
@Configuration
@ConditionalOnClass({ Cluster.class })
@EnableConfigurationProperties(CassandraProperties.class)
public class CassandraAutoConfiguration {
private final CassandraProperties properties;
private final List builderCustomizers;
public CassandraAutoConfiguration(CassandraProperties properties,
ObjectProvider> builderCustomizers) {
this.properties = properties;
this.builderCustomizers = builderCustomizers.getIfAvailable();
}
@Bean
@ConditionalOnMissingBean
public Cluster cassandraCluster() {
PropertyMapper map = PropertyMapper.get();
CassandraProperties properties = this.properties;
Cluster.Builder builder = Cluster.builder()
.withClusterName(properties.getClusterName())
.withPort(properties.getPort());
map.from(properties::getUsername).whenNonNull().to((username) -> builder
.withCredentials(username, properties.getPassword()));
map.from(properties::getCompression).whenNonNull().to(builder::withCompression);
map.from(properties::getLoadBalancingPolicy).whenNonNull()
.as(BeanUtils::instantiateClass).to(builder::withLoadBalancingPolicy);
map.from(this::getQueryOptions).to(builder::withQueryOptions);
map.from(properties::getReconnectionPolicy).whenNonNull()
.as(BeanUtils::instantiateClass).to(builder::withReconnectionPolicy);
map.from(properties::getRetryPolicy).whenNonNull().as(BeanUtils::instantiateClass)
.to(builder::withRetryPolicy);
map.from(this::getSocketOptions).to(builder::withSocketOptions);
map.from(properties::isSsl).whenTrue().toCall(builder::withSSL);
map.from(this::getPoolingOptions).to(builder::withPoolingOptions);
map.from(properties::getContactPoints)
.as((list) -> StringUtils.toStringArray(list))
.to(builder::addContactPoints);
customize(builder);
return builder.build();
}
private void customize(Cluster.Builder builder) {
if (this.builderCustomizers != null) {
for (ClusterBuilderCustomizer customizer : this.builderCustomizers) {
customizer.customize(builder);
}
}
}
private QueryOptions getQueryOptions() {
PropertyMapper map = PropertyMapper.get();
QueryOptions options = new QueryOptions();
CassandraProperties properties = this.properties;
map.from(properties::getConsistencyLevel).whenNonNull()
.to(options::setConsistencyLevel);
map.from(properties::getSerialConsistencyLevel).whenNonNull()
.to(options::setSerialConsistencyLevel);
map.from(properties::getFetchSize).to(options::setFetchSize);
return options;
}
private SocketOptions getSocketOptions() {
PropertyMapper map = PropertyMapper.get();
SocketOptions options = new SocketOptions();
map.from(this.properties::getConnectTimeout).whenNonNull()
.asInt(Duration::toMillis).to(options::setConnectTimeoutMillis);
map.from(this.properties::getReadTimeout).whenNonNull().asInt(Duration::toMillis)
.to(options::setReadTimeoutMillis);
return options;
}
private PoolingOptions getPoolingOptions() {
PropertyMapper map = PropertyMapper.get();
CassandraProperties.Pool properties = this.properties.getPool();
PoolingOptions options = new PoolingOptions();
map.from(properties::getIdleTimeout).whenNonNull().asInt(Duration::getSeconds)
.to(options::setIdleTimeoutSeconds);
map.from(properties::getPoolTimeout).whenNonNull().asInt(Duration::toMillis)
.to(options::setPoolTimeoutMillis);
map.from(properties::getHeartbeatInterval).whenNonNull()
.asInt(Duration::getSeconds).to(options::setHeartbeatIntervalSeconds);
map.from(properties::getMaxQueueSize).to(options::setMaxQueueSize);
return options;
}
}