Develop Reference

How to enable Neural Text-to-Speech (NTTS) in Java using Amazon Polly

I am trying to use Amazon Polly to convert text to speech using Java API. As described by Amazon there are several US english voices which support Neural. https://docs.aws.amazon.com/polly/latest/dg/voicelist.html
The code I am following to run in Java application is as following:
package com.amazonaws.demos.polly;
import java.io.IOException;
import java.io.InputStream;
import com.amazonaws.ClientConfiguration;
import com.amazonaws.auth.DefaultAWSCredentialsProviderChain;
import com.amazonaws.regions.Region;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.polly.AmazonPollyClient;
import com.amazonaws.services.polly.model.DescribeVoicesRequest;
import com.amazonaws.services.polly.model.DescribeVoicesResult;
import com.amazonaws.services.polly.model.OutputFormat;
import com.amazonaws.services.polly.model.SynthesizeSpeechRequest;
import com.amazonaws.services.polly.model.SynthesizeSpeechResult;
import com.amazonaws.services.polly.model.Voice;
import javazoom.jl.player.advanced.AdvancedPlayer;
import javazoom.jl.player.advanced.PlaybackEvent;
import javazoom.jl.player.advanced.PlaybackListener;
public class PollyDemo {
private final AmazonPollyClient polly;
private final Voice voice;
private static final String JOANNA="Joanna";
private static final String KENDRA="Kendra";
private static final String MATTHEW="Matthew";
private static final String SAMPLE = "Congratulations. You have successfully built this working demo of Amazon Polly in Java. Have fun building voice enabled apps with Amazon Polly (that's me!), and always look at the AWS website for tips and tricks on using Amazon Polly and other great services from AWS";
public PollyDemo(Region region) {
// create an Amazon Polly client in a specific region
polly = new AmazonPollyClient(new DefaultAWSCredentialsProviderChain(),
new ClientConfiguration());
polly.setRegion(region);
// Create describe voices request.
DescribeVoicesRequest describeVoicesRequest = new DescribeVoicesRequest();
// Synchronously ask Amazon Polly to describe available TTS voices.
DescribeVoicesResult describeVoicesResult = polly.describeVoices(describeVoicesRequest);
//voice = describeVoicesResult.getVoices().get(0);
voice = describeVoicesResult.getVoices().stream().filter(p -> p.getName().equals(MATTHEW)).findFirst().get();
}
public InputStream synthesize(String text, OutputFormat format) throws IOException {
SynthesizeSpeechRequest synthReq =
new SynthesizeSpeechRequest().withText(text).withVoiceId(voice.getId())
.withOutputFormat(format);
SynthesizeSpeechResult synthRes = polly.synthesizeSpeech(synthReq);
return synthRes.getAudioStream();
}
public static void main(String args[]) throws Exception {
//create the test class
PollyDemo helloWorld = new PollyDemo(Region.getRegion(Regions.US_WEST_1));
//get the audio stream
InputStream speechStream = helloWorld.synthesize(SAMPLE, OutputFormat.Mp3);
//create an MP3 player
AdvancedPlayer player = new AdvancedPlayer(speechStream,
javazoom.jl.player.FactoryRegistry.systemRegistry().createAudioDevice());
player.setPlayBackListener(new PlaybackListener() {
#Override
public void playbackStarted(PlaybackEvent evt) {
System.out.println("Playback started");
System.out.println(SAMPLE);
}
#Override
public void playbackFinished(PlaybackEvent evt) {
System.out.println("Playback finished");
}
});
// play it!
player.play();
}
}
By default its taking the Standard of the voice of Matthew. Please suggest what needs to be changed to make the speech Neural for the voice of Matthew.
Thanks

Thanks #ASR for your feedback.
I was able to find the engine parameter as you suggested.
The way I had to solve this is:
Update the aws-java-sdk-polly version from 1.11.77 (as they have in their documentation) to the latest 1.11.762 in the pom.xml and build the Maven project. This brings the latest class definition for SynthesizeSpeechRequest Class. With 1.11.77 I was unable to see withEngine function in its definition.
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-polly</artifactId>
<version>1.11.762</version>
</dependency>
Updated the withEngine("neural") as below:
SynthesizeSpeechRequest synthReq =
new SynthesizeSpeechRequest().withText(text).withVoiceId(voice.getId())
.withOutputFormat(format).withEngine("neural");
As defined in https://docs.aws.amazon.com/polly/latest/dg/NTTS-main.html Neural voice is only available in specific regions. So I had to chose as following:
PollyDemo helloWorld = new PollyDemo(Region.getRegion(Regions.US_WEST_2));
After this Neural voice worked perfectly.

I am assuming you are using AWS Java SDK 1.11
AWS documentation here states that you need to set the engine parameter in the speech sysnthesis request to neural. AWS Java SDK documentation here describes the withEngine method to set it to neural.
PS: the documentation page doesn't seem to provide the method URLs, so you will have to search for it.

401 Unauthorized error when using a server account to impersonate a user in order to access their Google Drive

I am writing a back-end process in Java that will impersonate a user and add/remove documents on their Google Drive.
The server account seems to authenticate correctly but when I try to impersonate a user, I get a 401 Unauthorized error. Please see below for details.
Configuration
I have configured the server account as follows:
Created a project under Google APIs and enabled Google Drive API
Created a service account called anothertest#yyyyyyyyy.iam.gserviceaccount.com, set the role as Service Account Actor and given it domain-wide delegation. It has Client ID 110xxxxxxxxx342
I have download the P12 key file
I have configured the domain using the Manage API client access screen to authorize 110xxxxxxxxx342 to have the scope: https://www.googleapis.com/auth/drive.
Google Support have looked at my configuration and have given it the thumbs up.
My code then looks as follows:
package com.dcm.sharingdocuments;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.Map.Entry;
import com.google.api.client.auth.oauth2.TokenErrorResponse;
import com.google.api.client.auth.oauth2.TokenResponseException;
import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.services.drive.Drive;
import com.google.api.services.drive.DriveScopes;
import com.google.api.services.drive.model.FileList;
public class SharingDocumentsTest3 {
private static final String SERVICE_ACCOUNT_EMAIL = " anothertest#yyyyyyyyy.iam.gserviceaccount.com";
public static Drive getDriveService(String userEmail) throws Exception {
File keyFile = new File("E:\\Projects\\Workspace\\Sharing Documents\\authentication\\AnotherTestKeyFile.p12");
HttpTransport httpTransport = new NetHttpTransport();
JacksonFactory jsonFactory = new JacksonFactory();
List<String> SCOPES = Arrays.asList(DriveScopes.DRIVE_METADATA_READONLY);
GoogleCredential credential = null;
if (userEmail == null) {
credential = new GoogleCredential.Builder().setTransport(httpTransport).setJsonFactory(jsonFactory)
.setServiceAccountId(SERVICE_ACCOUNT_EMAIL).setServiceAccountScopes(SCOPES)
.setServiceAccountPrivateKeyFromP12File(keyFile).build();
credential.refreshToken();
} else {
credential = new GoogleCredential.Builder().setTransport(httpTransport).setJsonFactory(jsonFactory)
.setServiceAccountId(SERVICE_ACCOUNT_EMAIL).setServiceAccountScopes(SCOPES)
.setServiceAccountPrivateKeyFromP12File(keyFile).setServiceAccountUser(userEmail).build();
credential.refreshToken();
}
Drive service = new Drive.Builder(httpTransport, jsonFactory, null).setHttpRequestInitializer(credential)
.build();
return service;
}
public static void main(String[] args) {
SharingDocumentsTest3 sdt3 = new SharingDocumentsTest3();
sdt3.execute();
}
private void execute() {
try {
Drive service = getDriveService(null);
Drive services = getDriveService("anzzzze#zzzzz.me.uk");
displayFiles(services);
} catch (Exception e) {
e.printStackTrace();
}
}
private void displayFiles(Drive service) throws Exception {
FileList result = service.files().list().setPageSize(10).execute();
List<com.google.api.services.drive.model.File> files = result.getFiles();
if (files == null || files.size() == 0) {
System.out.println("No files found.");
} else {
System.out.println("Files:");
for (com.google.api.services.drive.model.File file : files) {
Set<Entry<String, Object>> entries = file.entrySet();
Iterator<Entry<String, Object>> it = entries.iterator();
while (it.hasNext()) {
Entry<String, Object> entry = it.next();
String key = entry.getKey();
Object value = entry.getValue();
if (value instanceof String) {
System.out.println("\tKey = " + key + ", Value = " + (String) value);
} else {
System.out.println("\tKey = " + key + ", Value = " + value.toString());
}
}
System.out.printf("%s (%s)\n", file.getName(), file.getId());
}
}
}
}
When I run the code as is above, I get the error:
Mar 29, 2017 9:55:27 AM com.google.api.client.googleapis.services.AbstractGoogleClient <init>
WARNING: Application name is not set. Call Builder#setApplicationName.
com.google.api.client.auth.oauth2.TokenResponseException: 401 Unauthorized
at com.google.api.client.auth.oauth2.TokenResponseException.from(TokenResponseException.java:105)
at com.google.api.client.auth.oauth2.TokenRequest.executeUnparsed(TokenRequest.java:287)
at com.google.api.client.auth.oauth2.TokenRequest.execute(TokenRequest.java:307)
at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.executeRefreshToken(GoogleCredential.java:384)
at com.google.api.client.auth.oauth2.Credential.refreshToken(Credential.java:489)
at com.dcm.sharingdocuments.SharingDocumentsTest3.getDriveService(SharingDocumentsTest3.java:50)
at com.dcm.sharingdocuments.SharingDocumentsTest3.execute(SharingDocumentsTest3.java:75)
at com.dcm.sharingdocuments.SharingDocumentsTest3.main(SharingDocumentsTest3.java:65)
So the code fails at credential.refreshToken() when I set the setServiceAccountUser. It appears to have successfully refreshed the token when I do not. I have tried various combinations of this code – e.g. commented out the refreshToken() lines, commented out the getDriveService(null) line – but whenever I try to use/refresh the credential obtained for the impersonated user I get the 401 Unauthorized error.
If I modify the code so that the drive obtained by getDriveService(null) is passed to DisplayFiles(...), then I get one file listed called “Getting Started”. So it seems that the service account authorization is working and Google have added their default file to the Drive for the server account.
I am using google-*1.22.0.jar files and Java 1.8 to the run the above code
The problem I think is in the way I have configured the domain or the way I am trying to impersonate the user but my code looks as many examples on the web do and Google Support appear to say that I have configured the domain correctly.
Anything you can suggest as a resolution or next step would be much appreciated!

I have been stuck on this problem for a long time and I finally found my problem. There is definitely a bug in the "Manage API client access" Admin console...
You must put the "Client ID" (e.g. 110xxxxxxxxx342) for the client name and NOT the "Service Account ID" (the one that looks like an email). Now, their documentation is correct, and they do say in the documentation to use the Client ID, I have to give them that.
So here is the bug. When I arrived to the Manage API screen, I saw "Example: www.example.com". I typed in the Service Account ID there, thinking that the email address format matched "www.example.com" better than the Client ID. I pressed "Authorize", and the entry had clearly been accepted and everything was good. The result looks like this:
It even generated the Client ID from the Service ID! Great! Except my code gets a 401 error every time I try to connect with setServiceUser().
If I return to the Manage API Client Access console and if I remove the previous entry and perform the same actions except use the Client ID instead of the Service ID. The result is this:
Exactly the same, but now I don't get a 401 error. So there is NO WAY to look at the console, and know if you have it successfully configured it or not. I tested this 3 times to make sure I wasn't losing my mind...

Upload image twitter4j

I introduced myself to Twitter4j yesterday, and are now testing out features for an upcoming program of mine. As the title suggests, I am trying to upload an image to twitter, without any luck. Here's my code:
import static java.awt.Toolkit.getDefaultToolkit;
import static javax.swing.JOptionPane.ERROR_MESSAGE;
import static javax.swing.JOptionPane.showMessageDialog;
import java.awt.Image;
import java.io.File;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import twitter4j.Status;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.examples.tweets.UploadMultipleImages;
import twitter4j.media.ImageUpload;
import twitter4j.media.ImageUploadFactory;
public final class UpdateStatus {
static File file = new File("/images/Done.jpg");
public static void main(String[] args) {
for(int i=0;i<2;i++){
Twitter twitter = new TwitterFactory().getInstance();
Status status=null;
try {
ImageUpload.upload(file,"22");
} catch (TwitterException e) {
System.err.println("Shit...");
System.exit(3);
}
}
System.out.println("Done");
}
}
The image I'm trying to upload is Done.jpg, and is in a folder in the package. I've used this method for images in other programs, so I am pretty sure it works. Though, this gives me an error message before I run the code, saying "Cannot make a static reference to the non-static method upload(File, String) from the type ImageUpload". Any ideas that could help me? :D

You need to ensure following before testing your code -
Register your app at https://apps.twitter.com/ and get Oauth tokens to be able to connect your app to Twitter and perform desired action.
You will get a consumerKey,consumerAccessToken, accessKey and accessToken.
If you want to post updates, please ensure you configure your app
permissions to have a Read and Write access, deafult access is Read
Only.
After you have the required access tokens, you need to instantiate a Twitter instance using those tokens. This instance can then be used to perform requisite action. See sample code below to upload an image -
ConfigurationBuilder twitterConfigBuilder = new ConfigurationBuilder();
twitterConfigBuilder.setDebugEnabled(true);
twitterConfigBuilder.setOAuthConsumerKey("consumerkey");
twitterConfigBuilder.setOAuthConsumerSecret("consumersecret");
twitterConfigBuilder.setOAuthAccessToken("accesstoken");
twitterConfigBuilder.setOAuthAccessTokenSecret("accesstokensecret");
Twitter twitter = new TwitterFactory(twitterConfigBuilder.build()).getInstance();
String statusMessage = "Watch out this interesting offer I came across today";
File file = new File("/images/Done.jpg");
StatusUpdate status = new StatusUpdate(statusMessage);
status.setMedia(file); // set the image to be uploaded here.
twitter.updateStatus(status);
Hope this helps.

ImageUpload.upload is not a static method, but an instance method.
You need to create an instance of ImageUpload, and call the method from the instance.
Checking the documentation of ImageUpload, it is an interface. So you'll need to instantiate a class that implements ImageUpload.

Java application for Bing API

I have to make an application which is able to use Bing Search API ( SOAP Services) with java.It must do a specific search for a word.Here is my code :
import com.google.code.bing.search.client.BingSearchClient;
import com.google.code.bing.search.client.BingSearchServiceClientFactory;
import com.google.code.bing.search.client.BingSearchClient.SearchRequestBuilder;
import com.google.code.bing.search.schema.AdultOption;
import com.google.code.bing.search.schema.SearchOption;
import com.google.code.bing.search.schema.SearchRequest;
import com.google.code.bing.search.schema.SearchResponse;
import com.google.code.bing.search.schema.SourceType;
import com.google.code.bing.search.schema.web.WebResult;
import com.google.code.bing.search.schema.web.WebSearchOption;
public class MyApp {
String apikey = "****************";
String searchword="google";
public static void main(String[] args){
BingSearchServiceClientFactory factory = BingSearchServiceClientFactory.newInstance();
BingSearchClient client = factory.createBingSearchClient();
SearchRequestBuilder builder = client.newSearchRequestBuilder();
builder.withAppId(apikey);
builder.withQuery(searchword);
builder.withSourceType(SourceType.WEB);
builder.withVersion("2.0");
builder.withMarket("en-us");
builder.withAdultOption(AdultOption.MODERATE);
builder.withSearchOption(SearchOption.ENABLE_HIGHLIGHTING);
builder.withWebRequestCount(10L);
builder.withWebRequestOffset(0L);
builder.withWebRequestSearchOption(WebSearchOption.DISABLE_HOST_COLLAPSING);
builder.withWebRequestSearchOption(WebSearchOption.DISABLE_QUERY_ALTERATIONS);
SearchResponse response = client.search(builder.getResult());
for (WebResult result : response.getWeb().getResults()) {
System.out.println(result.getTitle());
System.out.println(result.getDescription());
System.out.println(result.getUrl());
System.out.println(result.getDateTime());
}
}
}
I found this http://code.google.com/p/bing-search-java-sdk/ site.
I get my appkey from Azure MarketPlace. I get an error : java.lang.NullPointerException at the line for loop that will show response. That means response is null.
I don't understand what I am missing .

bing is changing their license system at the moment. this API was created using the "old" version 2 license. MS had done some changes when migrating to Azzure market place:
https://datamarket.azure.com/dataset/5BA839F1-12CE-4CCE-BF57-A49D98D29A44
migration guide:
http://go.microsoft.com/fwlink/?LinkID=248077
I don't think that this is covered by this Java-API wrapper you use already.

Amazon Product Advertising API signed request with Java

After many hours of tinkering and reading the whole internet several times I just can't figure out how to sign requests for use with the Product Advertising API.
So far I managed to generate a client from the provided WSDL file. I used a tutorial by Amazon for this. You can find it here:
Tutorial for generating the web service client
So far no problems. To test the client I wrote a small piece of code. The code is intended to simply get some information about a product. The product is specified by its ASIN.
The code:
package client;
import com.ECS.client.jax.AWSECommerceService;
import com.ECS.client.jax.AWSECommerceServicePortType;
import com.ECS.client.jax.ItemLookup;
import com.ECS.client.jax.ItemLookupResponse;
import com.ECS.client.jax.ItemLookupRequest;
public class Client {
public static void main(String[] args) {
System.out.println("API Test startet");
AWSECommerceService service = new AWSECommerceService();
AWSECommerceServicePortType port = service.getAWSECommerceServicePort();
ItemLookupRequest itemLookup = new ItemLookupRequest();
itemLookup.setIdType("ASIN");
itemLookup.getItemId().add("B000RE216U");
ItemLookup lookup = new ItemLookup();
lookup.setAWSAccessKeyId("<mykeyishere>");
lookup.getRequest().add(itemLookup);
ItemLookupResponse response = port.itemLookup(lookup);
String r = response.toString();
System.out.println("response: " + r);
System.out.println("API Test stopped");
}
}
As you can see there is no part where I sign the request. I have worked my way through a lot of the classes used and found no methods for signing the request.
So, how to sign a request?
I actually found something in the documentation: request authentication
But they don't use their own API. The proposed solutions are more or less for manual use only. So I looked in the client classes to sort out if I could get the request URL and put all the parts needed for request signing in myself. But there are no such methods.
I hope someone can point out what I am doing wrong.
This is what I did to solve the problem. All the credit goes to Jon and the guys of the Amazon forums.
Before I outline what I did, here is a link to the post which helped me to solve the problem: Forum Post on Amazon forums.
I downloaded the awshandlerresolver.java which is linked in the post. Than I modified my own code so it looks like this:
package client;
import com.ECS.client.jax.AWSECommerceService;
import com.ECS.client.jax.AWSECommerceServicePortType;
import com.ECS.client.jax.ItemLookup;
import com.ECS.client.jax.ItemLookupResponse;
import com.ECS.client.jax.ItemLookupRequest;
public class Client {
public static void main(String[] args) {
System.out.println("API Test startet");
AWSECommerceService service = new AWSECommerceService();
service.setHandlerResolver(new AwsHandlerResolver("<Secret Key>")); // important
AWSECommerceServicePortType port = service.getAWSECommerceServicePort();
ItemLookupRequest itemLookup = new ItemLookupRequest();
itemLookup.setIdType("ASIN");
itemLookup.getItemId().add("B000RE216U");
ItemLookup lookup = new ItemLookup();
lookup.setAWSAccessKeyId("<Access Key>"); // important
lookup.getRequest().add(itemLookup);
ItemLookupResponse response = port.itemLookup(lookup);
String r = response.toString();
System.out.println("response: " + r);
System.out.println("API Test stopped");
}
}
The println on the end are more or less useless. But it works. I also used the WSDL Jon linked to generate a new webservice client. I just changed the URLs in the tutorial I posted in my question.

Try this afer you create the service
service.setHandlerResolver(new AwsHandlerResolver(my_AWS_SECRET_KEY));
You'll need this class and this jar file to add as a reference to your project as AwsHandlerResolver uses Base64 encoding.
You'll need to rename the AwsHandlerResolver file to the name of the class as the file name is all lower case.
I think the rest of the code you have is fine.
The WSDL is http://webservices.amazon.com/AWSECommerceService/AWSECommerceService.wsdl

This discussion and the related Amazon post helped me get the client working. That being said, I felt that the solution could be improved with regards to the following:
Setting WebService handlers in code is discouraged. A XML configuration file and a corresponding #HandlerChain annotation are recommended.
A SOAPHandler is not required in this case, LogicalHandler would do just fine. A SOAPHandler has more reach than a LogicalHandler and when it comes to code, more access is not always good.
Stuffing the signature generation, addition of a Node and printing the request in one handler seems like a little too much. These could be separated out for separation of responsibility and ease of testing. One approach would be to add the Node using a XSLT transformation so that the handler could remain oblivious of the transformation logic. Another handler could then be chained which just prints the request.
Example

i did this in spring it's working fine.
package com.bookbub.application;
import com.ECS.client.jax.*;
import com.ECS.client.jax.ItemSearch;
import javax.xml.ws.Holder;
import java.math.BigInteger;
import java.util.List;
public class TestClient {
private static final String AWS_ACCESS_KEY_ID = "AI*****2Y7Z****DIHQ";
private static final String AWS_SECRET_KEY = "lIm*****dJuiy***YA+g/vnj/Ix*****Oeu";
private static final String ASSOCIATE_TAG = "****-**";
public static void main(String[] args) {
TestClient ist = new TestClient();
ist.runSearch();
}
public void runSearch()
{
AWSECommerceService service = new AWSECommerceService();
service.setHandlerResolver(new AwsHandlerResolver(AWS_SECRET_KEY));
AWSECommerceServicePortType port = service.getAWSECommerceServicePort();
ItemSearchRequest request = new ItemSearchRequest();
request.setSearchIndex("Books");
request.setKeywords("java web services up and running oreilly");
ItemSearch search = new ItemSearch();
search.getRequest().add(request);
search.setAWSAccessKeyId(AWS_ACCESS_KEY_ID);
Holder<OperationRequest> operation_request =null;
Holder<List<Items>> items = new Holder<List<Items>>();
port.itemSearch(
search.getMarketplaceDomain(),
search.getAWSAccessKeyId(),
search.getAssociateTag(),
search.getXMLEscaping(),
search.getValidate(),
search.getShared(),
search.getRequest(),
operation_request,
items);
java.util.List<Items> result = items.value;
BigInteger totalPages = result.get(0).getTotalResults();
System.out.println(totalPages);
for (int i = 0; i < result.get(0).getItem().size(); ++i)
{ Item myItem = result.get(0).getItem().get(i);
System.out.print(myItem.getASIN());
System.out.print(", ");
System.out.println(myItem.getDetailPageURL());
System.out.print(", ");
System.out.println(myItem.getSmallImage() == null ? "" : myItem.getSmallImage().getURL());
}
}
}

You could achieve the same monetization outcomes with the IntentBrite API as well