com.amazon.pay.api

Class Util

java.lang.Object

com.amazon.pay.api.Util

public class Util
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_ENCODING
static String	JAVA_VERSION
static String	OS_NAME
static String	OS_VERSION

Constructor Summary

Constructors

Constructor and Description
Util()

Method Summary

Modifier and Type	Method and Description
static PrivateKey	buildPrivateKeyFromString(String privateKeyString) Builds the PrivateKey object fromt the private key string provided
static long	getExponentialWaitTime(int retryCount) Returns the next wait interval, in milliseconds, using an exponential backoff algorithm.
static String	getFormattedTimestamp() Generates the current time stamp in "yyyyMMdd'T'HHmmss'Z'" format
static URI	getServiceURI(PayConfiguration payConfiguration, String action) To get the service URI
static String	lowerCase(String str) Generates a lower case string from the given string
static Map<String,String>	updateHeader(Map<String,String> header) Returns the header with idempotency key, if not provided by the Merchant.
static String	urlEncode(String value, boolean path) Generates a url encoded string from the given string

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

JAVA_VERSION

public static final String JAVA_VERSION

OS_NAME

public static final String OS_NAME

OS_VERSION

public static final String OS_VERSION

DEFAULT_ENCODING

public static final String DEFAULT_ENCODING

See Also:

Constant Field Values

Constructor Detail

Util

public Util()

Method Detail

urlEncode

public static String urlEncode(String value,
                               boolean path)
                        throws AmazonPayClientException

Generates a url encoded string from the given string

Parameters:

value - the string to be encoded

path - to determine if the given value is a string or not

Returns:

the url encoded string

Throws:

AmazonPayClientException - When an error response is returned by Amazon Pay due to bad request or other issue

lowerCase

public static String lowerCase(String str)

Generates a lower case string from the given string

Parameters:

str - the string to be converted

Returns:

the lower case string

getFormattedTimestamp

public static String getFormattedTimestamp()

Generates the current time stamp in "yyyyMMdd'T'HHmmss'Z'" format

Returns:

the formatted timestamp

buildPrivateKeyFromString

public static PrivateKey buildPrivateKeyFromString(String privateKeyString)
                                            throws AmazonPayClientException

Builds the PrivateKey object fromt the private key string provided

Parameters:

privateKeyString - the private key string provided

Returns:

the PrivateKey object

Throws:

AmazonPayClientException - When an error response is returned by Amazon Pay due to bad request or other issue

getServiceURI

public static URI getServiceURI(PayConfiguration payConfiguration,
                                String action)
                         throws AmazonPayClientException

To get the service URI

Parameters:

payConfiguration - the PayConfiguration object

action - the action to be performed by the request

Returns:

the service URI

Throws:

AmazonPayClientException - When an error response is returned by Amazon Pay due to bad request or other issue

getExponentialWaitTime

public static long getExponentialWaitTime(int retryCount)

Returns the next wait interval, in milliseconds, using an exponential backoff algorithm.

Parameters:

retryCount - The current retry count

Returns:

the wait time

updateHeader

public static Map<String,String> updateHeader(Map<String,String> header)

Returns the header with idempotency key, if not provided by the Merchant. Used for Webstore POST requests.

Parameters:

header - Header sent by the merchant

Returns:

header Header with Idempotency key