Amazon Pinpoint SMS and Voice API examples using SDK for Java 2.x

import software.amazon.awssdk.core.client.config.ClientOverrideConfiguration;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.pinpointsmsvoice.PinpointSmsVoiceClient;
import software.amazon.awssdk.services.pinpointsmsvoice.model.SSMLMessageType;
import software.amazon.awssdk.services.pinpointsmsvoice.model.VoiceMessageContent;
import software.amazon.awssdk.services.pinpointsmsvoice.model.SendVoiceMessageRequest;
import software.amazon.awssdk.services.pinpointsmsvoice.model.PinpointSmsVoiceException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class SendVoiceMessage {

        // The Amazon Polly voice that you want to use to send the message. For a list
        // of voices, see https://docs.aws.amazon.com/polly/latest/dg/voicelist.html
        static final String voiceName = "Matthew";

        // The language to use when sending the message. For a list of supported
        // languages, see
        // https://docs.aws.amazon.com/polly/latest/dg/SupportedLanguage.html
        static final String languageCode = "en-US";

        // The content of the message. This example uses SSML to customize and control
        // certain aspects of the message, such as by adding pauses and changing
        // phonation. The message can't contain any line breaks.
        static final String ssmlMessage = "<speak>This is a test message sent from "
                        + "<emphasis>Amazon Pinpoint</emphasis> "
                        + "using the <break strength='weak'/>AWS "
                        + "SDK for Java. "
                        + "<amazon:effect phonation='soft'>Thank "
                        + "you for listening.</amazon:effect></speak>";

        public static void main(String[] args) {

                final String usage = """

                                Usage:   <originationNumber> <destinationNumber>\s

                                Where:
                                  originationNumber - The phone number or short code that you specify has to be associated with your Amazon Pinpoint account. For best results, specify long codes in E.164 format (for example, +1-555-555-5654).
                                  destinationNumber - The recipient's phone number.  For best results, you should specify the phone number in E.164 format (for example, +1-555-555-5654).\s
                                  """;

                if (args.length != 2) {
                        System.out.println(usage);
                        System.exit(1);
                }

                String originationNumber = args[0];
                String destinationNumber = args[1];
                System.out.println("Sending a voice message");

                // Set the content type to application/json.
                List<String> listVal = new ArrayList<>();
                listVal.add("application/json");
                Map<String, List<String>> values = new HashMap<>();
                values.put("Content-Type", listVal);

                ClientOverrideConfiguration config2 = ClientOverrideConfiguration.builder()
                                .headers(values)
                                .build();

                PinpointSmsVoiceClient client = PinpointSmsVoiceClient.builder()
                                .overrideConfiguration(config2)
                                .region(Region.US_EAST_1)
                                .build();

                sendVoiceMsg(client, originationNumber, destinationNumber);
                client.close();
        }

        public static void sendVoiceMsg(PinpointSmsVoiceClient client, String originationNumber,
                        String destinationNumber) {
                try {
                        SSMLMessageType ssmlMessageType = SSMLMessageType.builder()
                                        .languageCode(languageCode)
                                        .text(ssmlMessage)
                                        .voiceId(voiceName)
                                        .build();

                        VoiceMessageContent content = VoiceMessageContent.builder()
                                        .ssmlMessage(ssmlMessageType)
                                        .build();

                        SendVoiceMessageRequest voiceMessageRequest = SendVoiceMessageRequest.builder()
                                        .destinationPhoneNumber(destinationNumber)
                                        .originationPhoneNumber(originationNumber)
                                        .content(content)
                                        .build();

                        client.sendVoiceMessage(voiceMessageRequest);
                        System.out.println("The message was sent successfully.");

                } catch (PinpointSmsVoiceException e) {
                        System.err.println(e.awsErrorDetails().errorMessage());
                        System.exit(1);
                }
        }
}