org.springframework.boot.autoconfigure.jooq.SqlDialectLookup Maven / Gradle / Ivy
/*
* Copyright 2012-2024 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
*
* 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.boot.autoconfigure.jooq;
import java.sql.Connection;
import java.sql.SQLException;
import javax.sql.DataSource;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jooq.SQLDialect;
import org.jooq.tools.jdbc.JDBCUtils;
/**
* Utility to lookup well known {@link SQLDialect SQLDialects} from a {@link DataSource}.
*
* @author Michael Simons
* @author Lukas Eder
* @author Ramil Saetov
*/
final class SqlDialectLookup {
private static final Log logger = LogFactory.getLog(SqlDialectLookup.class);
private SqlDialectLookup() {
}
/**
* Return the most suitable {@link SQLDialect} for the given {@link DataSource}.
* @param dataSource the source {@link DataSource}
* @return the most suitable {@link SQLDialect}
*/
static SQLDialect getDialect(DataSource dataSource) {
try (Connection connection = (dataSource != null) ? dataSource.getConnection() : null) {
return JDBCUtils.dialect(connection);
}
catch (SQLException ex) {
logger.warn("Unable to determine dialect from datasource", ex);
}
return SQLDialect.DEFAULT;
}
}