org.ameba.integration.hibernate.DefaultMultiTenantConnectionProvider Maven / Gradle / Ivy
/*
* Copyright 2015-2024 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.ameba.integration.hibernate;
import org.ameba.tenancy.TenantSchemaUtils;
import org.hibernate.HibernateException;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.engine.config.spi.ConfigurationService;
import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
import org.hibernate.engine.jdbc.connections.spi.MultiTenantConnectionProvider;
import org.hibernate.engine.jndi.spi.JndiService;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.service.spi.ServiceRegistryAwareService;
import org.hibernate.service.spi.ServiceRegistryImplementor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.orm.hibernate5.SessionFactoryUtils;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.SQLException;
/**
* A DefaultMultiTenantConnectionProvider extends the abstract Hibernate type to provide the actual {@link ConnectionProvider}
* from a cache. The implementation is taken untouched from the Hibernate reference documentation.
*
* @author Heiko Scherrer
*/
public class DefaultMultiTenantConnectionProvider implements MultiTenantConnectionProvider,
ServiceRegistryAwareService {
private static final Logger LOGGER = LoggerFactory.getLogger(DefaultMultiTenantConnectionProvider.class);
SessionFactoryImplementor sessionFactory;
public static String defaultSchema;
public static String tenantSchemaPrefix;
private DataSource defaultDataSource;
@Override
public void injectServices(ServiceRegistryImplementor serviceRegistry) {
Object dataSourceConfigValue = serviceRegistry.getService(ConfigurationService.class)
.getSettings()
.get(AvailableSettings.DATASOURCE);
if (dataSourceConfigValue instanceof DataSource dataSource) {
this.defaultDataSource = dataSource;
} else if (dataSourceConfigValue instanceof String jndiName) {
JndiService jndiService = serviceRegistry.getService(JndiService.class);
if (jndiService == null) {
throw new HibernateException("Could not locate JndiService from " + this.getClass().getName());
}
Object namedObject = jndiService.locate(jndiName);
if (namedObject == null) {
throw new HibernateException("JNDI name [" + jndiName + "] could not be resolved");
}
if (namedObject instanceof DataSource dataSource) {
this.defaultDataSource = dataSource;
} else {
throw new HibernateException("Unknown object type [" +
namedObject.getClass().getName() +
"] found in JNDI location [" +
jndiName +
"]");
}
} else {
throw new HibernateException("DataSource configuration not found");
}
}
/**
* {@inheritDoc}
*/
@Override
public Connection getAnyConnection() throws SQLException {
DataSource dataSource;
if (sessionFactory == null) {
LOGGER.warn("SessionFactory not set, using default DataSource");
dataSource = this.defaultDataSource;
} else {
dataSource = SessionFactoryUtils.getDataSource(sessionFactory);
}
if (dataSource == null) {
throw new SQLException("Cannot obtain JDBC Connection, no DataSource accessible from SessionFactory");
}
return dataSource.getConnection();
}
/**
* {@inheritDoc}
*/
@Override
public void releaseAnyConnection(Connection connection) throws SQLException {
connection.close();
}
/**
* {@inheritDoc}
*
* Notice that the JDBC driver must support setting the schema on the connection. Most drivers allow this, but
* SQLServer does not allow to do so.
*/
@Override
public Connection getConnection(String tenantIdentifier) throws SQLException {
Connection connection = this.getAnyConnection();
return TenantSchemaUtils.applyTenantSchema(connection, tenantIdentifier, tenantSchemaPrefix, defaultSchema);
}
/**
* {@inheritDoc}
*/
@Override
public void releaseConnection(String tenantIdentifier, Connection connection) throws SQLException {
connection.close();
}
/**
* {@inheritDoc}
*/
@Override
public boolean supportsAggressiveRelease() {
return true;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isUnwrappableAs(Class unwrapType) {
return false;
}
/**
* {@inheritDoc}
*/
@Override
public T unwrap(Class unwrapType) {
return null;
}
}