/**
* Get the eftar reader for the data directory. If it has been already opened and not closed, this
* instance gets returned. One should not close it once used: {@link #cleanup(ServletRequest)}
* takes care to close it.
*
* @return {@code null} if a reader can't be established, the reader otherwise.
*/
public EftarFileReader getEftarReader() {
if (eftarReader == null || eftarReader.isClosed()) {
File f = getEnv().getConfiguration().getDtagsEftar();
if (f == null) {
eftarReader = null;
} else {
try {
eftarReader = new EftarFileReader(f);
} catch (FileNotFoundException e) {
LOGGER.log(Level.FINE, "Failed to create EftarFileReader: ", e);
}
}
}
return eftarReader;
}
