private NavigableSet<Calendar> getPartitions(String topic) throws IOException, ParseException {
final String s3Prefix = "s3n://" + mConfig.getS3Bucket() + "/" + mConfig.getS3Path();
String[] partitions = {"dt="};
LogFilePath logFilePath =
new LogFilePath(s3Prefix, topic, partitions, mConfig.getGeneration(), 0, 0, mFileExtension);
String parentDir = logFilePath.getLogFileParentDir();
String[] partitionDirs = FileUtil.list(parentDir);
Pattern pattern = Pattern.compile(".*/dt=(\\d\\d\\d\\d-\\d\\d-\\d\\d)$");
TreeSet<Calendar> result = new TreeSet<Calendar>();
for (String partitionDir : partitionDirs) {
Matcher matcher = pattern.matcher(partitionDir);
if (matcher.find()) {
String date = matcher.group(1);
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
format.setTimeZone(TimeZone.getTimeZone("UTC"));
Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
calendar.setTime(format.parse(date));
result.add(calendar);
}
}
return result;
}
