private DataSource getDataSource() throws Exception {
if (getDataSourceName() == null || "".equals(getDataSourceName())) {
return connectionFactory.getDataSource(getDriver(), getUrl(), getUser(), getPassword());
} else {
return connectionFactory.getDataSource(dataSourceName);
}
}
/**
* Completes initialization of this database journal. Base implementation checks whether the
* required bean properties <code>driver</code> and <code>url</code> have been specified and
* optionally deduces a valid database type. Should be overridden by subclasses that use a
* different way to create a connection and therefore require other arguments.
*
* @see #getConnection()
* @throws JournalException if initialization fails
*/
protected void init() throws JournalException {
if (driver == null && dataSourceName == null) {
String msg = "Driver not specified.";
throw new JournalException(msg);
}
if (url == null && dataSourceName == null) {
String msg = "Connection URL not specified.";
throw new JournalException(msg);
}
if (dataSourceName != null) {
try {
String configuredDatabaseType = connectionFactory.getDataBaseType(dataSourceName);
if (DatabaseJournal.class.getResourceAsStream(configuredDatabaseType + ".ddl") != null) {
setDatabaseType(configuredDatabaseType);
}
} catch (RepositoryException e) {
throw new JournalException("failed to get database type", e);
}
}
if (databaseType == null) {
try {
databaseType = getDatabaseTypeFromURL(url);
} catch (IllegalArgumentException e) {
String msg = "Unable to derive database type from URL: " + e.getMessage();
throw new JournalException(msg);
}
}
}