Java idiomatic client for Google Translation.
If you are using Maven, add this to your pom.xml file
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>google-cloud-translate</artifactId>
<version>1.39.0</version>
</dependency>
If you are using Gradle, add this to your dependencies
compile 'com.google.cloud:google-cloud-translate:1.39.0'
If you are using SBT, add this to your dependencies
libraryDependencies += "com.google.cloud" % "google-cloud-translate" % "1.39.0"
TranslateExample
is a simple command line interface that provides some of Google Translation's functionality. Read more about using the application on the TranslateExample
docs page.
For instructions on how to set up authentication and make authenticated calls, follow the Translation quickstart.
Google Translation provides a simple programmatic interface for translating an arbitrary string into any supported language. Translation is highly responsive, so websites and applications can integrate with Translation API for fast, dynamic translation of source text from the source language to a target language (e.g., French to English). Language detection is also available in cases where the source language is unknown.
See the Translation quickstart for more details on how to activate Google Translation for your project.
See the Translation client library docs to learn how to interact with the Google Translation using this Client Library.
For this tutorial, you need a Google Developers Console project with "Translation API" enabled via the console's API Manager. You also need to enable billing via the Google Developers Console.
Finally, you must set up the local development environment by
installing the Google Cloud SDK and running the following command
in command line: gcloud auth application-default login
. Alternatively, you can authenticate
Translation requests using an API key. See
Translation quickstart for more details.
You'll need to obtain the google-cloud-translate
library. See the Quickstart
section to add google-cloud-translate
as a dependency in your code.
To make authenticated requests to Google Translation, you must create a service object with credentials or use an API key. The simplest way to authenticate is to use Application Default Credentials. These credentials are automatically inferred from your environment, so you only need the following code to create your service object:
import com.google.cloud.translate.Translate;
import com.google.cloud.translate.TranslateOptions;
Translate translate = TranslateOptions.getDefaultInstance().getService();
Notice that this code can be also used with an API key. By default, an API key is looked for in the
GOOGLE_API_KEY
environment variable. Once the API key is set, you can make API calls by invoking
methods on the Translation service created via TranslateOptions.getDefaultInstance().getService()
.
You can also explicitly set the API key as follows:
Translate translate = TranslateOptions.newBuilder().setApiKey("myKey").build().getService();
With Google Translation you can detect the language of some text. The service will provide you with the code of the detected language and a level of confidence.
Add the following import at the top of your file:
import com.google.cloud.translate.Detection;
Then pick a text sample:
final String mysteriousText = "Hola Mundo";
Then add the following code to detect the text's language:
Detection detection = translate.detect(mysteriousText);
String detectedLanguage = detection.getLanguage();
Google translation allows you to translate some text. When translating one or more texts you can either provide the source language or let the service detect it for you.
Add the following imports at the top of your file:
import com.google.cloud.translate.Translate.TranslateOption;
import com.google.cloud.translate.Translation;
Then add the following code to translate the text, specifying the previously detected language (detectedLanguage
) as its source language and English as the target language (providing the source language is optional, if it is not specified the service will try to detect it automatically):
Translation translation = translate.translate(
mysteriousText,
TranslateOption.sourceLanguage(detectedLanguage),
TranslateOption.targetLanguage("en"));
In DetectLanguageAndTranslate.java we put together all the code shown above into one program. The program assumes that either Application Default Credentials or a valid API key are available.
To get help, follow the instructions in the shared Troubleshooting document.
Translate uses HTTP for the transport layer.
Java 7 or above is required for using this client.
This library has tools to help make tests for code using Cloud Translation.
See TESTING to read more about testing.
This library follows Semantic Versioning.
It is currently in major version one (1.y.z
), which means that the public API should be considered stable.
Contributions to this library are always welcome and highly encouraged.
See google-cloud
's CONTRIBUTING documentation and the shared documentation for more information on how to get started.
Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms. See Code of Conduct for more information.
Apache 2.0 - See LICENSE for more information.