@Timeout
public void replicateUsers() throws IOException {
logger.info("replicating users from MySQL to CouchDB");
List<SecuredUser> users = userService.list();
List<User> usersView = userDb.getUsersView().<User>createDocQuery().asDocs();
Map<String, User> couchUsers = User.toMap(usersView);
List<User> newOrModifiedUsers = new ArrayList<>();
// Add new users to couchdb
for (SecuredUser user : users) {
String id = user.getId().toString();
if (!couchUsers.containsKey(id)) {
String mmsi = getMmsi(user);
String name = getName(user);
newOrModifiedUsers.add(new User(id, user.getUserName(), name, mmsi));
logger.info("Adding user with id={} and name={}", user.getId(), name);
} else {
User couchUser = couchUsers.get(id);
String mmsi = getMmsi(user);
String name = getName(user);
if (!Objects.equals(couchUser.getName(), name)
|| !Objects.equals(couchUser.getMmsi(), mmsi)
|| !Objects.equals(couchUser.getUserName(), user.getUserName())) {
couchUser.setMmsi(mmsi);
couchUser.setName(name);
couchUser.setUserName(user.getUserName());
logger.info("Updating user with id={} and name={}", id, name);
newOrModifiedUsers.add(couchUser);
}
}
}
userDb.bulk(newOrModifiedUsers);
// remove deleted users from couchdb
Map<Long, SecuredUser> securedUsers =
users.stream().collect(Collectors.toMap(SecuredUser::getId, u -> u));
List<User> toRemove = new ArrayList<>();
for (User user : couchUsers.values()) {
if (!securedUsers.containsKey(Long.parseLong(user.getDocId()))) {
toRemove.add(user);
user.setDeleted();
logger.info("Removing user with id={} and name={}", user.getDocId(), user.getName());
}
}
userDb.bulk(toRemove);
}
