org.springframework.boot.autoconfigure.session.JdbcSessionDatabaseInitializer Maven / Gradle / Ivy
/*
* Copyright 2012-2016 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.session;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import javax.annotation.PostConstruct;
import javax.sql.DataSource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.jdbc.datasource.init.DatabasePopulatorUtils;
import org.springframework.jdbc.datasource.init.ResourceDatabasePopulator;
import org.springframework.jdbc.support.JdbcUtils;
import org.springframework.jdbc.support.MetaDataAccessException;
import org.springframework.util.Assert;
/**
* Initializer for Spring Session schema.
*
* @author Vedran Pavic
* @since 1.4.0
*/
public class JdbcSessionDatabaseInitializer {
private static Map ALIASES;
static {
Map aliases = new HashMap();
aliases.put("hsql", "hsqldb");
aliases.put("postgres", "postgresql");
ALIASES = Collections.unmodifiableMap(aliases);
}
private SessionProperties properties;
private DataSource dataSource;
private ResourceLoader resourceLoader;
public JdbcSessionDatabaseInitializer(SessionProperties properties,
DataSource dataSource, ResourceLoader resourceLoader) {
Assert.notNull(properties, "SessionProperties must not be null");
Assert.notNull(dataSource, "DataSource must not be null");
Assert.notNull(resourceLoader, "ResourceLoader must not be null");
this.properties = properties;
this.dataSource = dataSource;
this.resourceLoader = resourceLoader;
}
@PostConstruct
protected void initialize() {
if (this.properties.getJdbc().getInitializer().isEnabled()) {
ResourceDatabasePopulator populator = new ResourceDatabasePopulator();
String schemaLocation = this.properties.getJdbc().getSchema();
schemaLocation = schemaLocation.replace("@@platform@@", getPlatform());
populator.addScript(this.resourceLoader.getResource(schemaLocation));
populator.setContinueOnError(true);
DatabasePopulatorUtils.execute(populator, this.dataSource);
}
}
private String getPlatform() {
String databaseName = getDatabaseName();
if (ALIASES.containsKey(databaseName)) {
return ALIASES.get(databaseName);
}
return databaseName;
}
private String getDatabaseName() {
try {
String databaseProductName = JdbcUtils
.extractDatabaseMetaData(this.dataSource, "getDatabaseProductName")
.toString();
return JdbcUtils.commonDatabaseName(databaseProductName).toLowerCase();
}
catch (MetaDataAccessException ex) {
throw new IllegalStateException("Unable to detect database type", ex);
}
}
}