private List<GpsRecordAnnotation> readGpsFixesFromFile(
FileReader fileReader, String csvFileName) {
List<GpsRecordAnnotation> results = new LinkedList<GpsRecordAnnotation>();
CsvBeanReader beanReader = new CsvBeanReader(fileReader, CsvPreference.STANDARD_PREFERENCE);
try {
String[] headers = beanReader.getHeader(true);
if (hasIncorrectHeaders(headers)) {
closeReaders(fileReader, beanReader);
throw getUnableToReadFileExceptionCauseOfHeaders(csvFileName);
}
getGpsFixesFromReader(results, beanReader, headers);
closeReaders(fileReader, beanReader);
} catch (IOException | NullPointerException e) {
throw getUnableToReadFileExceptionCauseUnknown(csvFileName, e);
}
return results;
}
private void getGpsFixesFromReader(
List<GpsRecordAnnotation> results, CsvBeanReader beanReader, String[] headers)
throws IOException {
GpsRecordAnnotation gpsFix = null;
do {
gpsFix = beanReader.read(GpsRecordAnnotation.class, headers, getProcessors());
if (gpsFix != null) {
results.add(gpsFix);
}
} while (gpsFix != null);
}
private void closeReaders(FileReader fileReader, CsvBeanReader beanReader) throws IOException {
beanReader.close();
fileReader.close();
}