/**
* Merges to user lists. New users will be added and old users will be updated.
*
* @param aOriginal Original {@link List} of {@link User}.
* @param aChanges New {@link List} of {@link User} to merge into original list.
* @return Merges {@link List} of {@link User}.
*/
public static List<User> merge(List<User> aOriginal, List<User> aChanges) {
List<User> vUsers = new ArrayList<User>();
// delete original users not in changes, not manually added and without letters
for (Iterator<User> vIterator = aOriginal.iterator(); vIterator.hasNext(); ) {
User vUser = vIterator.next();
List<User> vUsersSelected =
UserListUtils.selectUnique(aChanges, vUser.getName(), vUser.getBirthdate());
if (vUsersSelected.size() == 0 && !vUser.isManualAdded()) {
User vUserDeleted = new User(vUser);
vUsers.add(vUserDeleted.setName(null));
vIterator.remove();
}
}
// update and add user data
List<User> vUnassignedUsers = new ArrayList<User>(); // list of users with more unique
// users in original list
for (Iterator<User> vIterator = aChanges.iterator(); vIterator.hasNext(); ) {
User vUser = vIterator.next();
List<User> vUsersSelected =
UserListUtils.selectUnique(aOriginal, vUser.getName(), vUser.getBirthdate());
if (vUsersSelected.size() == 1) {
// one unique user found > update user
User vUserSelected = new User(vUsersSelected.get(0)).update(vUser);
vUsers.add(vUserSelected);
vIterator.remove();
} else if (vUsersSelected.size() == 0) {
// no user found > check if to find without birthdate
List<User> vUsersByName = UserListUtils.selectUnique(aOriginal, vUser.getName(), "");
if (vUsersByName.size() == 1) {
// found user > update
User vUserSelected = new User(vUsersByName.get(0)).update(vUser);
vUsers.add(vUserSelected);
} else {
// not found by name > add user
User vNewUser = new User(vUser);
vUsers.add(vNewUser);
vIterator.remove();
}
} else if (vUnassignedUsers.size() > 1) {
// more than one unique user found > add to list for further processing
vUnassignedUsers.add(vUser);
vIterator.remove();
}
}
// process unassigned users
// TODO
logger.warn("Unassigned users " + vUnassignedUsers.size());
return vUsers;
}
/**
* Gets userdata from row.
*
* @param aRow {@link HSSFRow} to get userdata from.
* @param aColumns Array of {@link Integer} that specify the userdata columns. See {@code
* getUserdataColumnsFromSheet()}.
* @param aHouse {@link String} of users house name.
* @return {@link User} if data found, {@code null} otherwise.
*/
private User getUser(HSSFRow aRow, int[] aColumns, String aHouse) {
if (aRow != null && aColumns.length > 3) {
// convert cell types to string
convertCellTypes(aRow, Arrays.copyOf(aColumns, 3), HSSFCell.CELL_TYPE_STRING);
// convertCellTypes( aRow, new int[]{aColumns[3]}, HSSFCell.CELL_TYPE_NUMERIC );
// get cells
HSSFCell vCellName = aRow.getCell(aColumns[0]);
HSSFCell vCellFloor = aRow.getCell(aColumns[1]);
HSSFCell vCellRoom = aRow.getCell(aColumns[2]);
HSSFCell vCellBirthdate = aRow.getCell(aColumns[3]);
// check cells and create user
if (vCellName != null && vCellFloor != null && vCellRoom != null && vCellBirthdate != null) {
try {
String vName = vCellName.getStringCellValue().trim();
String vFloor = vCellFloor.getStringCellValue().trim();
String vRoom = vCellRoom.getStringCellValue().trim();
Date vBirthdate = (new SimpleDateFormat("dd.MM.yyyy")).parse("00.00.0000");
if (vCellBirthdate.getCellType() == HSSFCell.CELL_TYPE_NUMERIC) {
vBirthdate = vCellBirthdate.getDateCellValue();
}
if (vName.length() > 0) {
User vUser = new User(-1);
vUser.setName(vName);
vUser.setHouse(aHouse);
vUser.setFloor(vFloor);
vUser.setRoom(vRoom);
if (vBirthdate != null) {
SimpleDateFormat vDateFormat = new SimpleDateFormat("dd.MM.yyyy");
String vDateString = vDateFormat.format(vBirthdate);
vUser.setBirthdate(vDateString);
}
return vUser;
}
} catch (Exception e) {
e.printStackTrace();
logger.error("Error importing data from row " + aRow.getRowNum());
System.exit(0);
}
}
}
return null;
}
/**
* Imports user data from csv file.
*
* @param aCsvFile {@link File} csv file to import.
* @return {@link List} of {@link User} from csv file.
*/
private List<User> getUsers(File aCsvFile) {
List<User> vUsers = new ArrayList<User>();
if (aCsvFile != null & aCsvFile.exists() && aCsvFile.isFile()) {
try {
BufferedReader vReader =
new BufferedReader(new InputStreamReader(new FileInputStream(aCsvFile), "UTF-16"));
// get header
String vLine;
if ((vLine = vReader.readLine()) != null) {
int[] vColumns = getUserdataColumnsFromSheet(vLine.toLowerCase().split("\t"));
logger.debug("Extracted file columns: ");
for (int i : vColumns) logger.debug("\t" + i);
if (validateColumnsData(vColumns)) {
// read user data
while ((vLine = vReader.readLine()) != null) {
String[] vUserData = vLine.split("\t");
if (getMaxColumnNum(vColumns) < vUserData.length) {
String vPreName = vUserData[vColumns[0]].trim();
String vLastName = vUserData[vColumns[1]].trim();
String vHouse = vUserData[vColumns[2]].replace("Haus", "").trim();
String vRoom = vUserData[vColumns[3]].trim();
String vBirthdate = vUserData[vColumns[4]].trim();
if (vLastName.length() > 0) {
User vUser = new User(-1);
vUser.setName(vLastName + ", " + vPreName);
vUser.setHouse(vHouse);
vUser.setRoom(vRoom);
vUser.setBirthdate(vBirthdate);
vUsers.add(vUser);
}
} else {
logger.warn("Line doesn't contain number of required information:\n\t" + vLine);
}
}
}
} else {
logger.warn("Cannot read header from file " + aCsvFile.getPath());
}
vReader.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
logger.error("Cannot find file for import: " + aCsvFile.getPath());
} catch (IOException e) {
e.printStackTrace();
logger.error(e.getMessage());
}
}
return vUsers;
}