import com.google.common.util.concurrent.FutureCallback;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.twilio.Twilio;
import com.twilio.base.ResourceSet;
import com.twilio.rest.api.v2010.account.Message;

public class TwilioSmsStatusAsyncExample {
    // Find your Account Sid and Token at twilio.com/console
    public static final String ACCOUNT_SID = "SID";
    public static final String AUTH_TOKEN = "AUTH";

    // Create a phone number in the Twilio console
    public static final String TWILIO_NUMBER = "+12223334444";

    public static void main(String[] args) {

        Twilio.init(ACCOUNT_SID, AUTH_TOKEN);
        ListenableFuture<ResourceSet<Message>> future = Message.reader().readAsync();
        Futures.addCallback(
                future,
                new FutureCallback<ResourceSet<Message>>() {
                    public void onSuccess(ResourceSet<Message> messages) {
                        for (Message message : messages) {
                            System.out.println(message.getSid() + " : " + message.getStatus());
                        }
                    }

                    public void onFailure(Throwable t) {
                        System.out.println("Failed to get message status: " + t.getMessage());
                    }
                });
    }
}