com.flyingspaniel.nava.net.aws

Class AWSSignedRequestsHelper

java.lang.Object

com.flyingspaniel.nava.net.aws.AWSSignedRequestsHelper

public class AWSSignedRequestsHelper
extends Object

Based upon Amazon's example code at http://code.google.com/p/amazon-product-advertising-api-sample/source/browse/src/com/amazon/advertising/api/sample/SignedRequestsHelper.java?r=3

Since:

Copyright (c) 2013 by Morgan Conrad

Author:

Morgan Conrad

See Also:

This software is released under the MIT License

Field Summary

Fields

Modifier and Type	Field and Description
protected Calendar	calendar
protected DateFormat	dateFormat

Constructor Summary

Constructors

Constructor and Description
AWSSignedRequestsHelper(String awsSecretKey) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
String	generateCanonicalQuery(Map<String,String> params, String awsAccessKeyId)
static Map<String,String>	queryStringToMap(URLEncoding encoding, String queryString) Converts a query string to a (sorted) Map
void	setDate(Date date) Use with extreme caution, mainly for unit tests
String	sign(Map<String,String> params, String awsAccessKeyId, String method) Sign using the default AWS.ENDPOINT, AWS.REQUEST_URI
String	sign(Map<String,String> params, String awsAccessKeyId, String method, String endpoint, String uri) Signs a request
String	timestamp()

Methods inherited from class java.lang.Object

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

Field Detail

calendar

protected Calendar calendar

dateFormat

protected DateFormat dateFormat

Constructor Detail

AWSSignedRequestsHelper

public AWSSignedRequestsHelper(String awsSecretKey)
                        throws GeneralSecurityException

Constructor

Parameters:

awsSecretKey -

Throws:

GeneralSecurityException

UnsupportedEncodingException

Method Detail

sign

public String sign(Map<String,String> params,
          String awsAccessKeyId,
          String method,
          String endpoint,
          String uri)

Signs a request

Parameters:

params -

awsAccessKeyId - if null, you have already added it and the timestamp manually

Returns:

the URL you should then GET

sign

public String sign(Map<String,String> params,
          String awsAccessKeyId,
          String method)

Sign using the default AWS.ENDPOINT, AWS.REQUEST_URI

Parameters:

params -

awsAccessKeyId -

method -

Returns:

generateCanonicalQuery

public String generateCanonicalQuery(Map<String,String> params,
                            String awsAccessKeyId)

setDate

public void setDate(Date date)

Use with extreme caution, mainly for unit tests

Parameters:

date - non-null

queryStringToMap

public static Map<String,String> queryStringToMap(URLEncoding encoding,
                                  String queryString)

Converts a query string to a (sorted) Map

Parameters:

encoding -

queryString -

Returns:

a SortedMap which is never-null but may be empty.

timestamp

public String timestamp()