public static void main(String[] args) {
/*
* Set up the signed requests helper
*/
SignedRequestsHelper helper;
try {
helper = SignedRequestsHelper.getInstance(ENDPOINT, AWS_ACCESS_KEY_ID, AWS_SECRET_KEY);
} catch (Exception e) {
e.printStackTrace();
return;
}
String requestUrl = null;
String title = null;
/* The helper can sign requests in two forms - map form and string form */
/*
* Here is an example in map form, where the request parameters are stored in a map.
*/
System.out.println("Map form example:");
Map<String, String> params = new HashMap<String, String>();
params.put("Service", "AWSECommerceService");
params.put("Version", "2009-03-31");
params.put("Operation", "ItemSearch");
params.put("SearchIndex", "Music");
params.put("Keywords", "girls generation");
params.put("ResponseGroup", "Small");
requestUrl = helper.sign(params);
System.out.println("Signed Request is \"" + requestUrl + "\"");
ArrayList<String> titles = fetchTitles(requestUrl);
System.out.println("Girls GGeneration Albums!");
for (int i = 0; i < titles.size(); i++) {
System.out.println(titles.get(i));
}
}
/**
* Searches the amazon ws for a movie by the given id.
*
* @param params
* @return
*/
private static List<AmazonResult> search(Map<String, String> params) {
String awsEndPoint = ConfigFactory.load().getString("dvddb.amazon.endPoint");
if (StringUtils.isEmpty(awsEndPoint) == true) {
if (Logger.isErrorEnabled() == true) {
Logger.error("No AWS endPoint set in the configuration.");
}
return null;
}
String awsKeyId = ConfigFactory.load().getString("dvddb.amazon.aws.keyid");
if (StringUtils.isEmpty(awsKeyId) == true) {
if (Logger.isErrorEnabled() == true) {
Logger.error("No AWS keyID set in the configuration.");
}
return null;
}
String awsSecretKey = ConfigFactory.load().getString("dvddb.amazon.aws.secretkey");
if (StringUtils.isEmpty(awsSecretKey) == true) {
if (Logger.isErrorEnabled() == true) {
Logger.error("No AWS keySecretKey set in the configuration.");
}
return null;
}
try {
SignedRequestsHelper helper =
SignedRequestsHelper.getInstance(awsEndPoint, awsKeyId, awsSecretKey);
if (params == null) {
params = new HashMap<>();
}
params.put("Service", "AWSECommerceService");
params.put("Version", "2011-08-02");
params.put("ResponseGroup", "ItemAttributes,Images");
params.put("AssociateTag", "aztag-20");
String requestUrl = helper.sign(params);
if (Logger.isDebugEnabled() == true) {
Logger.debug("Signed AWS request: " + requestUrl);
}
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(requestUrl);
final List<AmazonResult> result = new ArrayList<>();
NodeList itemNodes = XPath.selectNodes("//Items/Item", doc);
for (int i = 0; i < itemNodes.getLength(); i++) {
Node item = itemNodes.item(i);
final AmazonResult resultFromNode = getResultFromNode(item);
if (resultFromNode != null) {
result.add(resultFromNode);
}
}
return result;
} catch (Exception e) {
if (Logger.isErrorEnabled() == true) {
Logger.error("An error happend while looking in the aws.", e);
}
return null;
}
}
