Automatically Generating Translations

If your app uses a language module or Language.properties file for its user interface messages, you’re in the right place. Language Builder provides these localization capabilities:

  • Generating language files for each supported locale with a single command. It also propagates new default language file keys to all language files, while keeping their translated values intact.

  • Generating translations automatically using Microsoft’s Translator Text API. This gives you a jump start on creating translations.

Start with Configuring the Language Builder plugin.

Configuring the Language Builder Plugin

Configure the Language Builder plugin for Gradle or Maven.

Gradle:

buildscript {
    dependencies {
        classpath 'com.liferay:com.liferay.gradle.plugins.lang.builder:latest.release'
    }

    repositories {
        maven {
            url "https://repository.liferay.com/nexus/content/repositories/liferay-public-releases/"
        }
    }
}

apply plugin: "com.liferay.lang.builder"

repositories {
    maven {
        url "https://repository.liferay.com/nexus/content/repositories/liferay-public-releases/"
    }
}

Maven:

<project>
    ...
    <build>
        <plugins>
            <plugin>
                <groupId>com.liferay</groupId>
                <artifactId>com.liferay.lang.builder</artifactId>
                <version>1.0.30</version>
                <configuration>
                    <langDirName>.</langDirName>
                    <translateClientId>${microsoft.translator.client.id}</translateClientId>
                    <translateClientSecret>${microsoft.translator.client.secret}</translateClientSecret>
                </configuration>
            </plugin>
        </plugins>
    </build>
    ...
</project>

Now you can invoke Language Builder in your project.

Running Language Builder

When you run Language Builder, it generates properties files for all your locales and propagates all new language properties from Language.properties to your locale language files (newly generated and existing). Additionally if you configured the Microsoft Translator Text API (discussed next), Language Builder translates your locale language properties.

Here’s the command:

Gradle:

gradlew buildLang

Maven:

mvn lang-builder:build

Note, until you configure translation credentials (discussed next), Language Builder prints this message:

Translation is disabled because credentials are not specified

If you want to configure your app to generate automatic translations using the Microsoft Translator Text API, keep reading.

Translating Language Keys Automatically

If you’ve configured the Language Builder plugin (above) in your project, you’re well on your way to translating language keys automatically. Now you have to configure Microsoft’s Translator Text API so you can translate language keys automatically.

Here’s how to set up the translator and generate translations.

  1. Generate a translation subscription key for the Microsoft Translator Text API. Follow the instructions here.

  2. Add your client credentials to the Language Builder plugin configuration. For security reasons, pass the credentials to a property that’s stored in your local build environment (e.g., see the Gradle environment guide).

    Gradle:

    Make sure the buildLang task knows to use your subscription key for translation by setting the translateSubscriptionKey property:

    buildLang {
       translateSubscriptionKey = langTranslateSubscriptionKey
    }
    

    Here’s the entire build.gradle example code,

    buildscript {
        dependencies {
            classpath 'com.liferay:com.liferay.gradle.plugins.lang.builder:latest.release'
        }
    
        repositories {
            maven {
                url "https://repository.liferay.com/nexus/content/repositories/liferay-public-releases/"
            }
        }
    }
    
    apply plugin: "com.liferay.lang.builder"
    
    buildLang {
       translateSubscriptionKey = langTranslateSubscriptionKey
    }
    
    repositories {
        maven {
            url "https://repository.liferay.com/nexus/content/repositories/liferay-public-releases/"
        }
    }
    

    Maven:

    Set the following Language Builder plugin <translateClientId /> and <translateClientSecret /> configuration elements using Maven build environment properties:

    <configuration>
        <langDirName>.</langDirName>
        <translateClientId>${microsoft.translator.client.id}</translateClientId>
        <translateClientSecret>${microsoft.translator.client.secret}</translateClientSecret>
    </configuration>
    ...
    

    Here’s the entire pom.xml example code,

    <project>
        ...
        <build>
            <plugins>
                <plugin>
                    <groupId>com.liferay</groupId>
                    <artifactId>com.liferay.lang.builder</artifactId>
                    <version>1.0.30</version>
                    <configuration>
                        <langDirName>.</langDirName>
                        <translateClientId>${microsoft.translator.client.id}</translateClientId>
                        <translateClientSecret>${microsoft.translator.client.secret}</translateClientSecret>
                    </configuration>
                </plugin>
            </plugins>
        </build>
        ...
    </project>
    
  3. Run Language Builder.

    Gradle:

    gradlew buildLang
    

    Maven:

    mvn lang-builder:build
    

Great! You can now generate language files and provide automatic translations of your language keys.

Localizing Your Application

Using Language Modules

Gradle Language Builder Plugin

Maven Language Builder Plugin

Liferay Workspace

Tooling

« Using a Language ModuleIntroduction to Portlets »
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