1. Evident Solutions
  2. Evident Open Source
  3. lokki

Overview

Lokki

Lokki takes away the pain from localization. It is inspired by Google Web Toolkit's localization mechanism, but has no external dependencies and can be included in any program and integrated with any framework.

Build Status

Usage

To define the things that can be localized, we create an interface which extends from Messages. We can optionally also specify the default messages using annotations:

package myapp;

import fi.evident.lokki.Messages;

public interface Greetings extends Messages {

    @DefaultMessage("Good morning!")
    String goodMorning();

    @DefaultMessage("Good evening!")
    String goodEvening();

    @DefaultMessage("Hello, {0}!")
    String hello(String target);
}

Then we can create corresponding localization files based on the fully qualified name of the class. So we could have myapp/Greeting_fi.properties which would look like this:

goodMorning   Hyvää huomenta!
goodEvening   Hyvää iltaa!
hello         Hei, {0}!

To actually use this in our code, we'll ask MessagesProvider to create an instance of Greetings for us:

Greetings greetings = MessagesProvider.forDefaultLocale().create(Greetings.class);

System.out.println(greetings.hello("world"));

That's it! You can further tweak the functionality by specifying some additional annotations or by configuring the properties of the MessagesProvider, but the basics remain the same.

Using Lokki with Maven

Lokki is available on the central Maven repository, so just add the following dependency to your pom.xml:

<dependency>
    <groupId>fi.evident.lokki</groupId>
    <artifactId>lokki</artifactId>
    <version>0.1.1</version>
</dependency>

Attributions

Image of ring-billed gull used on the website is by Jiyang Chen and is used by CC BY-SA 3.0.