/**
* @author Bogdan Sliptsov
* <p>Returns true if group is open. False if group is closed. //TODO moderate
*/
public boolean groupIsOpen(Long groupId) {
if (groupId == null) return false;
Group group = groupDao.read(groupId);
if (group == null) return false;
if (group.getType().equals(new Byte(String.valueOf(1)))) return false;
return true;
}
/**
* @author Bogdan Sliptsov
* <p>This method returns true if user is a group-creator and has rights to modify group and
* returns false if user doesn't have admin rights.
*/
public boolean isCreator(Long groupId, String deviceId) {
if (groupId == null) return false;
if (StringUtils.isEmpty(deviceId)) return false;
Group group = findById(groupId);
if (group == null) return false;
Device device = devicesDao.read(deviceId);
if (device == null) return false;
if (!group.getIdCreator().equals(deviceId)) return false;
return true;
}
/**
* @author Bogdan Sliptsov
* <p>This method is used to find all groups within a radius of 1000 meters.
* @param latitude Latitude of requested device
* @param longitude Longitude of requested device
* @return Null 1. If latitude or longitude is null; 2. If there are no groups wihin radius of 1
* km List of groups within radius of 1 km.
*/
public List<Group> getAllGroupsByGPS(Double latitude, Double longitude) {
if (latitude == null || longitude == null) return null;
List<Group> groups = getAllGroups();
List<Group> resultList = new ArrayList<>();
for (Group g : groups) {
System.out.println(distanceGPS(latitude, longitude, g.getLatitude(), g.getLongitude()));
if (distanceGPS(latitude, longitude, g.getLatitude(), g.getLongitude()) <= 1.0) {
resultList.add(g);
}
}
if (resultList.isEmpty()) return null;
return resultList;
}
/**
* @author Bogdan Sliptsov
* <p>This method is used to find all groups in DB by group-name or group-id.
* @param searchValue String search value which can be group-name or group-id
* @return Null 1. If searchValue reference is null; 2. If searchValue is empty; 3. If there are
* no groups with such name or id.
* @exception NumberFormatException On parsing searchValue to Long (searching by group id)
*/
public List<Group> getAllGroupsByNameOrID(String searchValue) {
if (StringUtils.isEmpty(searchValue)) return null;
List<Group> allGroups = getAllGroups();
List<Group> resultList = new ArrayList<>();
for (Group g : allGroups) {
if (g.getName().equals(searchValue)) {
resultList.add(g);
continue;
}
try {
Long id = Long.parseLong(searchValue);
if (g.getId().equals(id)) {
resultList.add(g);
}
} catch (NumberFormatException ex) {
/*NOP*/
}
}
if (resultList.isEmpty()) return null;
return resultList;
}
/**
* @author Bogdan Sliptsov
* <p>This method is used to update group in DB.
* @param group Group object to update.
* @return 1. Null If group doesn't exist. 2. Group object of updated group.
*/
public Group updateGroup(Group group) {
if (group == null) return null;
if (groupDao.read(group.getId()) == null) return null;
return groupDao.update(group);
}