private Executor newExecutor() throws SQLException {
final Environment environment = configuration.getEnvironment();
if (environment == null)
throw new ExecutorException(
"ResultLoader could not load lazily. Environment was not configured.");
final DataSource ds = environment.getDataSource();
if (ds == null)
throw new ExecutorException(
"ResultLoader could not load lazily. DataSource was not configured.");
final TransactionFactory transactionFactory = environment.getTransactionFactory();
final Transaction tx = transactionFactory.newTransaction(ds, null, false);
return configuration.newExecutor(tx, ExecutorType.SIMPLE);
}
private void databaseIdProviderElement(XNode context) throws Exception {
DatabaseIdProvider databaseIdProvider = null;
if (context != null) {
String type = context.getStringAttribute("type");
if ("VENDOR".equals(type)) type = "DB_VENDOR"; // awful patch to keep backward compatibility
Properties properties = context.getChildrenAsProperties();
databaseIdProvider = (DatabaseIdProvider) resolveClass(type).newInstance();
databaseIdProvider.setProperties(properties);
}
Environment environment = configuration.getEnvironment();
if (environment != null && databaseIdProvider != null) {
String databaseId = databaseIdProvider.getDatabaseId(environment.getDataSource());
configuration.setDatabaseId(databaseId);
}
}
/**
* 資料庫管理員初始化
*
* @throws Exception
*/
public static synchronized void init() throws Exception {
// logger.debug("DBManager: MyBatis init() entry");
try {
if (init) return;
StringBuilder sb = new StringBuilder();
String config = "";
try {
String webapp = ApplicationContext.getWebAppName();
sb.append("\ngetWebAppName: " + webapp);
config = ApplicationContext.getMyBatisConfig();
if (StringTK.isEmpty(config)) {
config = resource;
}
sb.append("\nMyBatis Config Path: " + config);
if (StringTK.isEmpty(config)) {
config = resource;
}
Reader reader = Resources.getResourceAsReader(config);
sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
Environment evnir = sqlSessionFactory.getConfiguration().getEnvironment();
sb.append("\nApplied Environment: " + evnir.getId());
setEnvironment(evnir.getId());
init = true;
} catch (Exception e) {
e.printStackTrace();
logger.error(e.getMessage());
throw e;
} finally {
}
logger.debug(sb.toString() + "\nDBManager: Database MyBatis initail successful.");
} catch (Exception e) {
logger.error("DBManager: init() fail");
logger.debug(e.getMessage());
throw e;
} finally {
}
// logger.debug("DBManager: init() exit");
}
private TransactionFactory getTransactionFactoryFromEnvironment(Environment environment) {
if (environment == null || environment.getTransactionFactory() == null) {
return managedTransactionFactory;
}
return environment.getTransactionFactory();
}