```
public class PayuUtils

                    
```
Created by franklin on 6/18/15. Payu util class provides protected, public functions to sdk and App. Use the SBI_MAES_BIN set to find whether the number is state bank maestro number or not Use the validateCardNumber method to validate user card number, it includes length luhn validation. Use the luhn method to validate card number, use this function only if you validate length at your end. Use the getIssuer method to get the issuer, it will return the issuer from {VISA, AMEX, MAES, MAST, SMAE, LASER, DINR, JCB} use the validateCvv method to validate cvv, AMEX has 4 digit, SMAE has no cvv, other has 3 dight cvv. use the validateExpiry method to validate whether the card is expired or not!. use the concatParams method to concat both params1 and param2 using equal to (=) and add a ampersand at the end! adding default argumentsgetReturnDatagetReturnData use the getReturnData to send the data back to app as PostData use the trimAmpersand remove leading ampersand if any!.

Field Summary

Fields
Modifier and Type	Field	Description
`public static String`	`cbVersion`
`public static Set<String>`	`SBI_MAES_BIN`

Method Summary

Modifier and Type	Method	Description
`Boolean`	`validateCardNumber(String cardNumber)`	includes length validation alsouse luhn to validate.
`Boolean`	`luhn(String cardNumber)`	Universal luhn validation for Credit, Debit cards.
`String`	`getIssuer(String mCardNumber)`	Gives the Issuer of the card number.
`boolean`	`validateCvv(String cardNumber, String cvv)`	helps to validate cvvwe need card bin to figure out issuer,from issuer we validate cvvOh!
`boolean`	`validateExpiry(int expiryMonth, int expiryYear)`	helps to validate whether the card is expired or not!.
`void`	`deviceAnalytics(Context context, String merchantKey, String transactionId)`	convert params to json object, and call device analytics
`void`	`storeInSharedPreferences(Context context, String key, String value)`	Store key value pair in shared preference
`String`	`getFromSharedPreferences(Context context, String key)`	Get the value for the provided key from shared preference
`String`	`getFromSharedPreferences(Context context, String key, String defaultValue)`
`void`	`removeFromSharedPreferences(Context context, String key)`	Delete the key from shared preference
`HashMap<String, ArrayList<StoredCard>>`	`getStoredCard(Context context, ArrayList<StoredCard> cardList)`	Segregate onclick payment cards and stored cards.
`HashMap<String, ArrayList<StoredCard>>`	`getStoredCard(ArrayList<StoredCard> cardList)`	Segregate onclick payment cards and stored cardsShould be used when STORE_ONE_CLICK_HASH_SERVER
`static void`	`setAnalyticsKeyCB(PayuConfig payuConfig)`	set the analytics key for the analytics of events and device
`static void`	`setAnalyticsKeyCB(String analyticsKey)`	set the analytics key for the analytics of events and device
`static void`	`setVariableCB(String pakageName, HashMap<String, String> cbAnalyticsKeys, String Version)`
`TransactionResponse`	`getTransactionResponse(String transactionRespObj)`
`JSONObject`	`getTransactionResponseJson(JSONObject transactionRespObj)`
`String`	`getUdid()`	Phone's UDID, will be required in every communication with payu server.
`static HttpsURLConnection`	`getHttpsConn(String strURL, String postData)`	*Return HttpsURLConnection object
`static HttpsURLConnection`	`getHttpsConn(String strURL, String postData, String requestProperty)`	*Return HttpsURLConnection object
`static HttpsURLConnection`	`getHttpsConn(String strURL, String postData, int timeout)`	*Return HttpsURLConnection object
`static HttpsURLConnection`	`getHttpsConnForGetRequest(HttpRequest request)`	Return the connection object
`static String`	`getAnalyticsString(String analyticsData)`	Return Analytics JSON String so as to append it to postdata
`Boolean`	`validateCardNumber(String cardNumber, String issuer)`
`static HttpsURLConnection`	`getHttpsConn(HttpRequest request)`	*Return HttpsURLConnection object
`static StringBuffer`	`getStringBuffer(HttpsURLConnection conn)`
`static String`	`updateAnalytics(String data)`
`static String`	`getPaymentTypeValue(String payMode)`
`static void`	`safeClose(InputStream inputStream)`
`static String`	`replaceString(String skuDetails, String key1, String key2)`
`static double`	`getDoubleValue(JSONObject value, String key)`
`static String`	`getStringValue(JSONObject value, String key)`
`static URL`	`getApiV2Url(PayuConfig payuConfig)`
`static StringBuilder`	`getStringBuilder(HttpsURLConnection conn, Boolean handleStatusCode)`
`static StringBuffer`	`getStringBuffer(HttpsURLConnection conn, Boolean handleStatusCode)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - validateCardNumber
```
 Boolean validateCardNumber(String cardNumber)
```
    includes length validation alsouse luhn to validate.
    
    Parameters:
    
    cardNumber - any card number
  - luhn
```
 Boolean luhn(String cardNumber)
```
    Universal luhn validation for Credit, Debit cards.
    
    Parameters:
    
    cardNumber - any card number
  - getIssuer
```
 String getIssuer(String mCardNumber)
```
    Gives the Issuer of the card number.using simple regex we can actually figure out the card belong to which issuer amoung VISA, AMEX, MAES, MAST, SMAE, LASER, DINR, JCB
    
    Parameters:
    
    mCardNumber - first 6 digit of card number is more than enough to figure out.
  - validateCvv
```
 boolean validateCvv(String cardNumber, String cvv)
```
    helps to validate cvvwe need card bin to figure out issuer,from issuer we validate cvvOh! AMEX has 4 digit,Crap! SMAE has no cvv,okay, other has 3 dight cvv.
    
    Parameters:
    
    cardNumber - Card bin
    
    cvv - cvv
  - validateExpiry
```
 boolean validateExpiry(int expiryMonth, int expiryYear)
```
    helps to validate whether the card is expired or not!.
    
    Parameters:
    
    expiryMonth - expmon
    
    expiryYear - expyr
  - deviceAnalytics
```
 void deviceAnalytics(Context context, String merchantKey, String transactionId)
```
    convert params to json object, and call device analytics
    
    Parameters:
    
    context - base activity instance
    
    merchantKey - merchant key
    
    transactionId - transaction id
  - storeInSharedPreferences
```
 void storeInSharedPreferences(Context context, String key, String value)
```
    Store key value pair in shared preference
    
    Parameters:
    
    context - activity instance
    
    key - key for shared preference
    
    value - value of the corresponding key
  - getFromSharedPreferences
```
 String getFromSharedPreferences(Context context, String key)
```
    Get the value for the provided key from shared preference
    
    Parameters:
    
    context - base activity context
    
    key - shared preference key
  - getFromSharedPreferences
```
 String getFromSharedPreferences(Context context, String key, String defaultValue)
```
    Parameters:
    
    context - base activity context
    
    key - shared preference key
    
    defaultValue - default value
  - removeFromSharedPreferences
```
 void removeFromSharedPreferences(Context context, String key)
```
    Delete the key from shared preference
    
    Parameters:
    
    context - base activity context
    
    key - shared preference key
  - getStoredCard
```
 HashMap<String, ArrayList<StoredCard>> getStoredCard(Context context, ArrayList<StoredCard> cardList)
```
    Segregate onclick payment cards and stored cards.should be used when STORE_ONE_CLICK_HASH_MOBILE
    
    Parameters:
    
    context - app context
    
    cardList - list of cards get from payu serverHash map ONE_CLICK_CHECKOUT - one click cardsHash map STORED_CARD - stored cards
  - getStoredCard
```
 HashMap<String, ArrayList<StoredCard>> getStoredCard(ArrayList<StoredCard> cardList)
```
    Segregate onclick payment cards and stored cardsShould be used when STORE_ONE_CLICK_HASH_SERVER
    
    Parameters:
    
    cardList - list of stored cards received from payu serverHash map ONE_CLICK_CHECKOUT - one click cardsHash map STORED_CARD - stored cards
  - setAnalyticsKeyCB
```
 static void setAnalyticsKeyCB(PayuConfig payuConfig)
```
    set the analytics key for the analytics of events and device
    
    Parameters:
    
    payuConfig - payment params
  - setAnalyticsKeyCB
```
 static void setAnalyticsKeyCB(String analyticsKey)
```
    set the analytics key for the analytics of events and device
    
    Parameters:
    
    analyticsKey - analytics key
  - setVariableCB
```
 static void setVariableCB(String pakageName, HashMap<String, String> cbAnalyticsKeys, String Version)
```
  - getTransactionResponse
```
 TransactionResponse getTransactionResponse(String transactionRespObj)
```
  - getTransactionResponseJson
```
 JSONObject getTransactionResponseJson(JSONObject transactionRespObj)
```
  - getUdid
```
 String getUdid()
```
    Phone's UDID, will be required in every communication with payu server.
  - getHttpsConn
```
 static HttpsURLConnection getHttpsConn(String strURL, String postData)
```
    *Return HttpsURLConnection object
    
    Parameters:
    
    strURL - postURL
    
    postData - data to be posted
  - getHttpsConn
```
 static HttpsURLConnection getHttpsConn(String strURL, String postData, String requestProperty)
```
    *Return HttpsURLConnection object
    
    Parameters:
    
    strURL - postURL
    
    postData - data to be posted
  - getHttpsConn
```
 static HttpsURLConnection getHttpsConn(String strURL, String postData, int timeout)
```
    *Return HttpsURLConnection object
    
    Parameters:
    
    strURL - postURL
    
    postData - data to be posted
    
    timeout - timeout
  - getHttpsConnForGetRequest
```
 static HttpsURLConnection getHttpsConnForGetRequest(HttpRequest request)
```
    Return the connection object
    
    Parameters:
    
    request - HttpRequest
  - getAnalyticsString
```
 static String getAnalyticsString(String analyticsData)
```
    Return Analytics JSON String so as to append it to postdata
  - validateCardNumber
```
 Boolean validateCardNumber(String cardNumber, String issuer)
```
  - getHttpsConn
```
 static HttpsURLConnection getHttpsConn(HttpRequest request)
```
    *Return HttpsURLConnection object
    
    Parameters:
    
    request - HttpRequest
  - getStringBuffer
```
 static StringBuffer getStringBuffer(HttpsURLConnection conn)
```
    Parameters:
    
    conn - HttpsURLConnection
  - updateAnalytics
```
 static String updateAnalytics(String data)
```
  - getPaymentTypeValue
```
 static String getPaymentTypeValue(String payMode)
```
  - safeClose
```
 static void safeClose(InputStream inputStream)
```
  - replaceString
```
 static String replaceString(String skuDetails, String key1, String key2)
```
  - getDoubleValue
```
 static double getDoubleValue(JSONObject value, String key)
```
  - getStringValue
```
 static String getStringValue(JSONObject value, String key)
```
  - getApiV2Url
```
 static URL getApiV2Url(PayuConfig payuConfig)
```
  - getStringBuilder
```
 static StringBuilder getStringBuilder(HttpsURLConnection conn, Boolean handleStatusCode)
```
  - getStringBuffer
```
 static StringBuffer getStringBuffer(HttpsURLConnection conn, Boolean handleStatusCode)
```

Class PayuUtils

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Method Detail

validateCardNumber

luhn

getIssuer

validateCvv

validateExpiry

deviceAnalytics

storeInSharedPreferences

getFromSharedPreferences

getFromSharedPreferences

removeFromSharedPreferences

getStoredCard

getStoredCard

setAnalyticsKeyCB

setAnalyticsKeyCB

setVariableCB

getTransactionResponse

getTransactionResponseJson

getUdid

getHttpsConn

getHttpsConn

getHttpsConn

getHttpsConnForGetRequest

getAnalyticsString

validateCardNumber

getHttpsConn

getStringBuffer

updateAnalytics

getPaymentTypeValue

safeClose

replaceString

getDoubleValue

getStringValue

getApiV2Url

getStringBuilder

getStringBuffer