private DataSource getDataSourceFromConfig(ServerConfig config) {
DataSource ds = null;
if (config.getDataSourceJndiName() != null) {
ds = jndiDataSourceFactory.lookup(config.getDataSourceJndiName());
if (ds == null) {
String m =
"JNDI lookup for DataSource " + config.getDataSourceJndiName() + " returned null.";
throw new PersistenceException(m);
} else {
return ds;
}
}
DataSourceConfig dsConfig = config.getDataSourceConfig();
if (dsConfig == null) {
String m = "No DataSourceConfig definded for " + config.getName();
throw new PersistenceException(m);
}
if (dsConfig.isOffline()) {
if (config.getDatabasePlatformName() == null) {
String m = "You MUST specify a DatabasePlatformName on ServerConfig when offline";
throw new PersistenceException(m);
}
return null;
}
if (dsConfig.getHeartbeatSql() == null) {
// use default heartbeatSql from the DatabasePlatform
String heartbeatSql = getHeartbeatSql(dsConfig.getDriver());
dsConfig.setHeartbeatSql(heartbeatSql);
}
return DataSourceGlobalManager.getDataSource(config.getName(), dsConfig);
}