org.springframework.data.cassandra.core.cql.session.init.SessionFactoryInitializer Maven / Gradle / Ivy
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/*
* 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.core.cql.session.init;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.data.cassandra.SessionFactory;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* Used to {@linkplain #setKeyspacePopulator set up} a keyspace during initialization and {@link #setKeyspaceCleaner
* clean up} a keyspace during destruction.
*
* @author Mark Paluch
* @since 3.0
* @see KeyspacePopulator
*/
public class SessionFactoryInitializer implements InitializingBean, DisposableBean {
private @Nullable SessionFactory sessionFactory;
private @Nullable KeyspacePopulator keyspacePopulator;
private @Nullable KeyspacePopulator keyspaceCleaner;
private boolean enabled = true;
/**
* The {@link SessionFactory} for the keyspace to populate when this component is initialized and to clean up when
* this component is shut down.
*
* This property is mandatory with no default provided.
*
* @param sessionFactory the SessionFactory.
*/
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
/**
* Set the {@link KeyspacePopulator} to execute during the bean initialization phase.
*
* @param keyspacePopulator the {@link KeyspacePopulator} to use during initialization.
* @see #setKeyspaceCleaner
*/
public void setKeyspacePopulator(KeyspacePopulator keyspacePopulator) {
this.keyspacePopulator = keyspacePopulator;
}
/**
* Set the {@link KeyspacePopulator} to execute during the bean destruction phase, cleaning up the keyspace and
* leaving it in a known state for others.
*
* @param keyspaceCleaner the {@link KeyspacePopulator} to use during destruction.
* @see #setKeyspacePopulator
*/
public void setKeyspaceCleaner(KeyspacePopulator keyspaceCleaner) {
this.keyspaceCleaner = keyspaceCleaner;
}
/**
* Flag to explicitly enable or disable the {@linkplain #setKeyspacePopulator keyspace populator} and
* {@linkplain #setKeyspaceCleaner keyspace cleaner}.
*
* @param enabled {@literal true} if the keyspace populator and keyspace cleaner should be called on startup and
* shutdown, respectively.
*/
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
/**
* Use the {@linkplain #setKeyspacePopulator keyspace populator} to set up the keyspace.
*/
@Override
public void afterPropertiesSet() {
execute(this.keyspacePopulator);
}
/**
* Use the {@linkplain #setKeyspaceCleaner keyspace cleaner} to clean up the keyspace.
*/
@Override
public void destroy() {
execute(this.keyspaceCleaner);
}
private void execute(@Nullable KeyspacePopulator populator) {
Assert.state(this.sessionFactory != null, "SessionFactory must be set");
if (this.enabled && populator != null) {
populator.populate(this.sessionFactory.getSession());
}
}
}