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Cassandra support for Spring Data
/*
* Copyright 2022 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.observability;
import org.springframework.beans.factory.config.AbstractFactoryBean;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.util.ObjectUtils;
import com.datastax.oss.driver.api.core.CqlSession;
import com.datastax.oss.driver.api.core.CqlSessionBuilder;
import io.micrometer.observation.ObservationRegistry;
/**
* Factory bean to construct a {@link CqlSession} integrated with given {@link ObservationRegistry}. This factory bean
* registers also {@link ObservationRequestTracker#INSTANCE ObservationRequestTracker.INSTANCE} with the builder to
* ensure full integration with the required infrastructure.
*
* @author Mark Paluch
* @since 4.0
* @see ObservationRequestTracker
* @see ObservableCqlSessionFactory
*/
public class ObservableCqlSessionFactoryBean extends AbstractFactoryBean {
private final CqlSessionBuilder cqlSessionBuilder;
private final ObservationRegistry observationRegistry;
private @Nullable String remoteServiceName;
/**
* Construct a new {@link ObservableCqlSessionFactoryBean}.
*
* @param cqlSessionBuilder must not be {@literal null}.
* @param observationRegistry must not be {@literal null}.
*/
public ObservableCqlSessionFactoryBean(CqlSessionBuilder cqlSessionBuilder, ObservationRegistry observationRegistry) {
Assert.notNull(cqlSessionBuilder, "CqlSessionBuilder must not be null");
Assert.notNull(observationRegistry, "ObservationRegistry must not be null");
this.cqlSessionBuilder = cqlSessionBuilder;
this.observationRegistry = observationRegistry;
}
@Override
protected CqlSession createInstance() {
cqlSessionBuilder.addRequestTracker(ObservationRequestTracker.INSTANCE);
if (ObjectUtils.isEmpty(getRemoteServiceName())) {
return ObservableCqlSessionFactory.wrap(cqlSessionBuilder.build(), observationRegistry);
}
return ObservableCqlSessionFactory.wrap(cqlSessionBuilder.build(), getRemoteServiceName(), observationRegistry);
}
@Override
protected void destroyInstance(@Nullable CqlSession instance) {
if (instance != null) {
instance.close();
}
}
@Override
public Class getObjectType() {
return CqlSession.class;
}
@Nullable
public String getRemoteServiceName() {
return remoteServiceName;
}
/**
* Set the remote service name.
*
* @param remoteServiceName
*/
public void setRemoteServiceName(@Nullable String remoteServiceName) {
this.remoteServiceName = remoteServiceName;
}
}