public Map<String, List<String>> readInvertedMapListFromTsvReader(
BufferedReader reader, int logFrequency) throws IOException {
Map<String, List<String>> map = Maps.newHashMap();
String line;
int line_number = 0;
while ((line = reader.readLine()) != null) {
line_number++;
if (logFrequency != -1) {
logEvery(logFrequency, line_number);
}
String[] fields = line.split("\t");
String key = fields[0];
for (int i = 1; i < fields.length; i++) {
String value = fields[i];
// Remember, this is an _inverted_ map, so switching the value and key is correct.
MapUtil.addValueToKeyList(map, value, key);
}
}
return map;
}
// These logEvery methods fit here, for now, because I only ever use them when I'm parsing
// through a really long file and want to see progress updates as I go.
public void logEvery(int logFrequency, int current) {
logEvery(logFrequency, current, Integer.toString(current));
}