Develop Reference

How to check whether the OTP sent is expired or not and verify OTP for forgot/ reset password in Spring Boot?

I am developing an API for reset/ forgot password. I have created an API for send otp to registered user only. In this, I am storing generated OTP in database too.
Below is my SenOTP model:
public class SendOTP {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
Long sendotpid;
private int otp;
private String phone;
private static final long OTP_VALID_DURATION = 5 * 60 * 1000; // 5 minutes
#Column(name="otp_Requested_Time")
private Date otpRequestedTime;
public boolean isOTPRequired() {
if(this.getOtp() == 0) {
return false;
}
long currentTimeInMillis = System.currentTimeMillis();
long otpRequestedTimeMillis = this.otpRequestedTime.getTime();
if(otpRequestedTimeMillis + OTP_VALID_DURATION < currentTimeInMillis) {
// otp expires
return false;
}
return true;
}
}
Below is send otp to regsitered phone number API:
public int getOTP() {
Random r = new Random();
int min = 1000;
int max = 9999;
int uid = r.nextInt(max-min) + min;
return uid;
}
public ResponseEntity<?> sendotptoregisteredphone(HttpServletRequest request, #RequestParam("phone") String phone) {
CustomResponse = ResponseFactory.getResponse(request);
phone = phone.replace(" 1", "").replace("NA", "").replace(" 1NA", "").replace(",", "").replace("-", "").replace("(", "").replace(")", "").replace(" ", "");
User registeredUser = userDao.findByPhoneAndPhoneverify(phone,1);
if(registeredUser != null) {
if(phone.equals(registeredUser.getPhone())) {
int otp = getOTP();
SendOTP s = new SendOTP();
s.setOtp(otp);
s.setPhone(phone);
s.setOtpRequestedTime(new Date());
SendOTP sotp = sendOtpDao.save(s);
// Here is my Twilio implementation to send message to entered phone number
CustomResponse.setResponse(sotp);
CustomResponse.setStatus(CustomStatus.OK);
CustomResponse.setStatusCode(CustomStatus.OK_CODE);
CustomResponse.setResponseMessage(CustomStatus.SuccessMsg);
}
}else {
CustomResponse.setResponse("Sorry ! Phone number is not registered with us.");
CustomResponse.setStatus(CustomStatus.Error);
CustomResponse.setStatusCode(CustomStatus.Error_CODE);
}
return new ResponseEntity<ResponseDao>(CustomResponse, HttpStatus.OK);
}
Below API is to verify entered OTP:
public ResponseEntity<?> verifyotp(HttpServletRequest request, #RequestParam("otp") String otp) {
CustomResponse = ResponseFactory.getResponse(request);
int flag = checkapikey(apikey);
SendOTP otpByUser;
try {
if(otp != null || otp != "" || otp.equalsIgnoreCase("NA")) {
int otpValue = Integer.parseInt(otp);
otpByUser = sendOtpDao.findByOtp(otpValue);
// What next, I am bit confuse here.
}
} catch (Exception e) {
e.printStackTrace();
CustomResponse.setResponse("Error occurred! please try again");
CustomResponse.setStatus(CustomStatus.Error);
CustomResponse.setStatusCode(CustomStatus.Error_CODE);
}
return new ResponseEntity<ResponseDao>(CustomResponse, HttpStatus.OK);
}
Now, next I want to verify or validate OTP that user will enter and check whether the OTP is expired or not. If OTP is not expired then forgot/reset password API should work.
Please suggest me any solution or answer.

How to open new Activity for Vcard and how to open Google Maps app?

I am making a qr code scanner app and I can't complete two things. The first one is to pass information about Vcard to a new Activity. Here is the code I wrote:
#Override
public void handleResult(Result rawResult) {
processRawResult(rawResult.getText());
}
private void processRawResult(String text){
if (text.startsWith("BEGIN:")) {
String[] tokens = text.split("\n");
QRVcardModel qrVcardModel = new QRVcardModel();
for (int i = 0; i < tokens.length; i++) {
if (tokens[i].startsWith("BEGIN:")) {
qrVcardModel.setType(tokens[i].substring("BEGIN:".length()));
} else if (tokens[i].startsWith("N:")) {
qrVcardModel.setName(tokens[i].substring("N:".length()));
} else if (tokens[i].startsWith("ORG:")) {
qrVcardModel.setOrg(tokens[i].substring("ORG:".length()));
} else if (tokens[i].startsWith("TEL:")) {
qrVcardModel.setTel(tokens[i].substring("TEL:".length()));
} else if (tokens[i].startsWith("URl:")) {
qrVcardModel.setUrl(tokens[i].substring("URL:".length()));
} else if (tokens[i].startsWith("EMAIL:")) {
qrVcardModel.setEmail(tokens[i].substring("EMAIL:".length()));
} else if (tokens[i].startsWith("ADR:")) {
qrVcardModel.setAddress(tokens[i].substring("ADR:".length()));
} else if (tokens[i].startsWith("NOTE:")) {
qrVcardModel.setNote(tokens[i].substring("NOTE:".length()));
} else if (tokens[i].startsWith("SUMMARY:")) {
qrVcardModel.setSummary(tokens[i].substring("SUMMARY:".length()));
} else if (tokens[i].startsWith("DTSTART:")) {
qrVcardModel.setDtstart(tokens[i].substring("DTSTART:".length()));
} else if (tokens[i].startsWith("DTEND:")) {
qrVcardModel.setDtend(tokens[i].substring("DTEND:".length()));
}
}
Intent intentVcard = new Intent(MainActivity.this, VcardActivity.class);
startActivity(intentVcard);
}
The second problem I face is that I can't open Google Maps app when I scan the Geoqrcode. Here is the code:
else if (text.startsWith("geo:"))
{
QRGeoModel qrGeoModel = new QRGeoModel();
String delims = "[ , ?q= ]+";
String tokens[] = text.split(delims);
for (int i=0;i<tokens.length;i++)
{
if (tokens[i].startsWith(" geo:"))
{
qrGeoModel.setLat(tokens[i].substring("geo:".length()));
}
}
qrGeoModel.setLat(tokens[0].substring("geo:".length()));
qrGeoModel.setLng(tokens[1]);
qrGeoModel.setGeo_place(tokens[2]);
Uri gmmIntentUri = Uri.parse("qrGeoModel.getLat(),qrGeoModel.getLng()");
Intent mapIntent = new Intent(Intent.ACTION_VIEW, gmmIntentUri);
mapIntent.setPackage("com.google.android.apps.maps");
startActivity(mapIntent);
}
Do you know how can I do that two?

You can pass values in Intent like this :
intentVcard.putExtra("value_name" , value);
value can be String, int, boolean, long and more (you can check in your ide what you can pass).
On the recieving activity you can get the value like this :
getIntent.getStrinExtra("value_name");
Be sure to replace it by your value name, for String it is like this, however for boolean it will be :
getIntent.getBooleanExtra("value_name" , defualt_value);
About the Google Maps problem, look at this line
Uri gmmIntentUri = Uri.parse("qrGeoModel.getLat(),qrGeoModel.getLng()");
you don't need " there, that way you will pass it all as a string and not the actual value of qrGeoModel.getLat(), insted write this line like that :
Uri gmmIntentUri = Uri.parse(qrGeoModel.getLat() + "," + qrGeoModel.getLng());

RecyclerView is empty on "some" devices, but works perfectly on my own device

I have an app that uses json data to populate a recyclerview. It works perfectly on my own device. However, it doesn't work on some devices which even have the same android version with mine.
I found the source of the problem by printing the size of the ArrayList at some stages of the data handling and I am sure nothing is due to network.
The exact problem is that the ArrayList.size() returns 0 on some devices but it doesn't happen on my own device which shows "231" for the size.
The list is defined in the class and initialized in the void.
List<Match> liste;
private void refreshList() {
String ret = new TinyDB(getApplicationContext()).getString("list");
try {
JSONArray bulten = new JSONArray(ret.substring(ret.indexOf("[")));
if(ret==""){Toast.makeText(getApplicationContext(),"Something is wrong.",Toast.LENGTH_LONG).show();}
liste = new ArrayList<>();
for (int i = 0; i < bulten.length(); i++) {
String isim,kod,ust,alt,bet;
bet = bulten.optJSONObject(i).getString("BetTypeId");
isim = bulten.optJSONObject(i).getString("BetName");
kod = bulten.optJSONObject(i).getString("Code");
if(bulten.optJSONObject(i).optJSONArray("Odds25").optJSONObject(0) != null){
ust = bulten.optJSONObject(i).optJSONArray("Odds25").optJSONObject(0).getString("Value");
alt = bulten.optJSONObject(i).optJSONArray("Odds25").optJSONObject(1).getString("Value");}
else{
ust = "0.00";
alt= "0.00";
}
if(bet == "3"){
liste.add(new Match(isim,kod,ust,alt));}
}
Toast.makeText(getApplicationContext(),""+liste.size(),Toast.LENGTH_SHORT)
.show(); // The part I show the size of the arraylist is here.
Collections.sort(liste, new Match.CompId());
RecyclerView.Adapter adapter1 = new RVAdapter(liste);
rv.setAdapter(adapter1);
} catch (JSONException e) {
e.printStackTrace();
}catch (StringIndexOutOfBoundsException e){}
}
Here is the Match class:
public class Match {
String isim;
String kod;
String ust;
String alt;
Match(String isim, String kod, String ust, String alt) {
this.isim = isim;
this.kod = kod;
this.ust = ust;
this.alt = alt;
}
public static class CompId implements Comparator<Match> {
#Override
public int compare(Match arg0, Match arg1) {
return Integer.parseInt(arg0.kod) - Integer.parseInt(arg1.kod);
}
}
}

I don't know why this happened but in the line
if(bet == "3"){
liste.add(new Match(isim,kod,ust,alt));}
}
I was checking if the variable bet is equal to three. It seems that in some devices the string "3" is not read as "3". I changed this line to bet.contains("3")
and it is working right now on those devices.

I am getting string errors

After changing my string from this:
String osver = System.getProperty("os.name");
if (osver.contains("Mac")){
String app = wd + "/relap5.x\"";
} else if (osver.contains("Windows")){
String app = "relap5.exe";
} else if (osver.contains("linux")) {
String app = "/relap5.x";
}
To this:
String[] osver = {System.getProperty("os.name")};
if (osver.contains("Mac")){
String[] app = {wd + "/relap5.x\""};
} else if (osver.contains("Windows")){
String[] app = {"relap5.exe"};
} else if (osver.contains("linux")) {
String[] app = {"/relap5.x"};
}
I am getting errors.
Cannot find symbol
symbol: method contains(String)
Location variable osver of type string[]

You cannot do contains over an array.
You could alternatively do this:
List<String> osver = Arrays.asList(System.getProperty("os.name"));
if (osver.contains("Mac")) {
String[] app = { wd + "/relap5.x\"" };
} else if (osver.contains("Windows")) {
String[] app = { "relap5.exe" };
} else if (osver.contains("linux")) {
String[] app = { "/relap5.x" };
}

This is because Array does not contain method contains. Do you mean the following:
String osver = System.getProperty("os.name");
String app;
if (osver.equals("Mac")){
app = "wd" + "/relap5.x\"";
} else if (osver.equals("Windows")){
app = "relap5.exe";
} else if (osver.equals("linux")) {
app = "/relap5.x";
}
System.out.println(app);
The above code will check for equality but if you want to check for containment then use:
String osver = System.getProperty("os.name");
String app;
if (osver.contains("Mac")){
app = "wd" + "/relap5.x\"";
} else if (osver.contains("Windows")){
app = "relap5.exe";
} else if (osver.contains("linux")) {
app = "/relap5.x";
}
System.out.println(app);

Get Primary gmail id among all gmails in my mobile

we have one requirement, to display primary Gmail account in edittext. But i am getting all email(Gmail) accounts which are logged in my mobile.
I am using below code.
Pattern emailPattern = Patterns.EMAIL_ADDRESS; // API level 8+
Account[] accounts = AccountManager.get(MainActivity.this).getAccountsByType("com.google");
if(accounts.length>1){
for (Account account : accounts) {
if (emailPattern.matcher(account.name).matches()) {
String possibleEmail = account.name;
Log.d("email::","email::"+possibleEmail+"----"+account.type);
}
}
}else{
Log.d("email::","email::no mails found");
}
Please help me to find out the primary email id.
Thanks

Try This:-
private String getEmailID() {
AccountManager manager = (AccountManager) getSystemService(ACCOUNT_SERVICE);
Account[] list = manager.getAccounts();
for (Account account : list) {
if (account.type.equalsIgnoreCase("com.google")) {
gmail = account.name;
break;
}
}
mStr_email = gmail;
Log.d(KEY_TAG, "EMAIL" + mStr_email);
return mStr_email;
}
Code to Check whether Internet Connection is On:-
InternetConnection ic = new InternetConnection(getApplicationContext());
isInternetPresent = ic.isConnectingToInternet();
if (!isInternetPresent) {
Utilities.showToast(SplashActivity.this,
"Switch on Internet Connection");
startActivity(new Intent(Settings.ACTION_SETTINGS));
} else {
Log.d(KEY_TAG, "Check attendane ");
}