private State importHeader(BufferedReader bufferedReader) throws IOException {
String line = readLineWhileBlank(bufferedReader);
// expect state name in the first line
if (line.matches("^State Name : .*$")) {
String stateName = line.substring(line.indexOf(':') + 1).trim();
State state = stateDataService.findByName(stateName);
verify(null != state, "State does not exists");
readLineWhileNotBlank(bufferedReader);
return state;
} else {
throw new IllegalArgumentException("Invalid file format");
}
}
