(Android™) Amazon Translate Text

Demonstrates how to use the AWS Translate service to translate text from one language to another.

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkRest rest = new CkRest();
    boolean success;

    CkAuthAws authAws = new CkAuthAws();
    authAws.put_AccessKey("AWS_ACCESS_KEY");
    authAws.put_SecretKey("AWS_SECRET_KEY");
    authAws.put_Region("us-west-2");
    authAws.put_ServiceName("translate");
    rest.SetAuthAws(authAws);

    // URL: https://translate.us-west-2.amazonaws.com/
    boolean bTls = true;
    int port = 443;
    boolean bAutoReconnect = true;
    success = rest.Connect("translate.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);
    if (success != true) {
        Log.i(TAG, "ConnectFailReason: " + String.valueOf(rest.get_ConnectFailReason()));
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    // Translate text from English to German
    CkJsonObject json = new CkJsonObject();
    json.UpdateString("SourceLanguageCode","en");
    json.UpdateString("TargetLanguageCode","de");
    json.UpdateString("Text","This is the text to be translated");

    rest.AddHeader("Content-Type","application/x-amz-json-1.1");
    rest.AddHeader("X-Amz-Target","AWSShineFrontendService_20170701.TranslateText");

    CkStringBuilder sbRequestBody = new CkStringBuilder();
    json.EmitSb(sbRequestBody);
    CkStringBuilder sbResponseBody = new CkStringBuilder();
    success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody);
    if (success != true) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    int respStatusCode = rest.get_ResponseStatusCode();
    if (respStatusCode >= 400) {
        Log.i(TAG, "Response Status Code = " + String.valueOf(respStatusCode));
        Log.i(TAG, "Response Header:");
        Log.i(TAG, rest.responseHeader());
        Log.i(TAG, "Response Body:");
        Log.i(TAG, sbResponseBody.getAsString());
        return;
        }

    CkJsonObject jsonResponse = new CkJsonObject();
    jsonResponse.LoadSb(sbResponseBody);
    jsonResponse.put_EmitCompact(false);

    Log.i(TAG, jsonResponse.emit());

    // {
    //   "SourceLanguageCode": "en",
    //   "TargetLanguageCode": "de",
    //   "TranslatedText": "Dies ist der zu bersetzende Text"
    // }

    Log.i(TAG, jsonResponse.stringOf("TranslatedText"));

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}