/** Initializes DatabaseFactory. */
public static synchronized void init() {
if (dataSource != null) {
return;
}
DatabaseConfig.load();
try {
DatabaseConfig.DATABASE_DRIVER.newInstance();
} catch (Exception e) {
log.fatal("Error obtaining DB driver", e);
throw new Error("DB Driver doesnt exist!");
}
connectionPool = new GenericObjectPool();
if (DatabaseConfig.DATABASE_CONNECTIONS_MIN > DatabaseConfig.DATABASE_CONNECTIONS_MAX) {
log.error(
"Please check your database configuration. Minimum amount of connections is > maximum");
DatabaseConfig.DATABASE_CONNECTIONS_MAX = DatabaseConfig.DATABASE_CONNECTIONS_MIN;
}
connectionPool.setMaxIdle(DatabaseConfig.DATABASE_CONNECTIONS_MIN);
connectionPool.setMaxActive(DatabaseConfig.DATABASE_CONNECTIONS_MAX);
/* test if connection is still valid before returning */
connectionPool.setTestOnBorrow(true);
try {
dataSource = setupDataSource();
Connection c = getConnection();
DatabaseMetaData dmd = c.getMetaData();
databaseName = dmd.getDatabaseProductName();
databaseMajorVersion = dmd.getDatabaseMajorVersion();
databaseMinorVersion = dmd.getDatabaseMinorVersion();
c.close();
} catch (Exception e) {
log.fatal("Error with connection string: " + DatabaseConfig.DATABASE_URL, e);
throw new Error("DatabaseFactory not initialized!");
}
log.info("Successfully connected to database");
}
