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kitchensink-ml: Localized Version of the kitchensink Quickstart

The kitchensink-ml quickstart demonstrates a localized Java EE 7 compliant application using JSF, CDI, EJB, JPA, and Bean Validation.

What is it?

The kitchensink-ml quickstart is a deployable Maven 3 project to help you get your foot in the door developing with Java EE 7 on WildFly Application Server.

It demonstrates how to create a localized Java EE 7 compliant application using JSF, CDI, JAX-RS, EJB, JPA, and Bean Validation. A localized application is one that supports multiple languages. That is what the -ml suffix denotes in the quickstart name kitchensink-ml. This quickstart also includes a persistence unit and some sample persistence and transaction code to introduce you to database access in enterprise Java.

This quickstart uses the kitchensink quickstart as its starting point. It has been enhanced to provide localization of labels and messages. A user sets the preferred language choice in the browser and, if the application supports that language, the application web page is rendered in that language. For demonstration purposes, this quickstart has been tranlated into French(fr) and Spanish (es) using http://translate.google.com, so the translations may not be ideal.

Localization Code Changes

The following changes were made to the quickstart to enable it to use the browser preferred locale setting when displaying the web page:

  • Properties files were created for the supported languages.

    • This quickstart is localized for Spanish and French. You can add additional language support by creating properties files with the appropriate suffix and populating the properties with translated values.

    • The JSF resource Bundle is located at `src/main/resources/org/jboss/as/quickstarts/kitchensink/bundle/Resources_(es|fr).properties

    • Messages generated by Java code (e.g. log messages and messages sent to the UI) are internationalized using JBoss Logging. The log messages are accessed via the org.jboss.as.quickstarts.kitchensink.util.KitchensinkMessages interface, and the message bundles are located at: src/main/resources/org/jboss/as/quickstarts/kitchensink/util/KitchensinkMessages.i18_(es|fr).properties

    • The message bundle consumed by Bean Validation is located at src/main/resources/ValidationMessages.properties. This is defined by the bean validation specification.

  • The following XML was added to the src/main/webapp/WEB-INF/faces-config.xml file. When you create a property file for a new language, you must add the supported locale to this file.

    <application>
  <locale-config>
    <default-locale>en</default-locale>
    <supported-locale>en-US</supported-locale>
    <supported-locale>fr</supported-locale>
    <supported-locale>fr-FR</supported-locale>
    <supported-locale>es</supported-locale>
    <supported-locale>es-ES</supported-locale>
  </locale-config>
  <resource-bundle>
    <base-name>org/jboss/as/quickstarts/kitchensink/bundle/Resources</base-name>
    <var>bundle</var>
  </resource-bundle>
</application>

  • The src/main/java/org/jboss/as/quickstarts/kitchensink/model/Member.java file was modififed to add the message key to @Pattern annotation.

    @NotNull
@Size(min = 1, max = 25)
@Pattern(regexp = "[A-Za-z ]*", message = "{name_validation_message}")
private String name;

  • The src/main/java/org/jboss/as/quickstarts/kitchensink/util/KitchensinkMessages.java file was created, which defines default messages in English. The jboss-logging-processor will automatically generate an implementation for you, which can be accesssed via the MESSAGES static variable.

    @MessageBundle(projectCode = "")
public interface KitchensinkMessages {

   KitchensinkMessages MESSAGES = Messages.getBundle(KitchensinkMessages.class, FacesContext.getCurrentInstance().getViewRoot().getLocale());

   @Message("Registered!")
   String registeredMessage();

   @Message("Successfully registered!")
   String registerSuccessfulMessage();

   @Message("Registration failed:")
   String registerFailMessage();

   @Message("Registration failed. See server log for more information.")
   String defaultErrorMessage();
}

  • The src/main/java/org/jboss/as/quickstarts/kitchensink/controller/MemberController.java file was modified as follows:

    • Messages strings were replaced with strings retrieved using the resource bundle property names. For example:

      FacesMessage m = new FacesMessage(FacesMessage.SEVERITY_INFO,
        KitchensinkMessages.MESSAGES.registeredMessage(),
        KitchensinkMessages.MESSAGES.registerSuccessfulMessage());

  • The src/main/webapp/index.xhtml file were modified.

    • Strings for headers, messages, labels were replaced with the appropriate # {bundle.<property>}, for example: # {bundle.memberWelcomeHeader}.

Set the Browser Preferred Locale

How you set your browser preferred locale depends on the browser and version you use. Use your browser help option to search for instructions to change the preferred language setting.

Access the Application

The application will be running at the following URL: http://localhost:8080/{artifactId}/.

Change your browser preferred language to French or Spanish and refresh the page to see it displayed in the new language.

Server Log: Expected Warnings and Errors

You will see the following warnings in the server log. You can ignore these warnings.

WFLYJCA0091: -ds.xml file deployments are deprecated. Support may be removed in a future version.

HHH000431: Unable to determine H2 database version, certain features may not work