Tapestry5HowToDomainLevelLocalization

    @Inject
    private RequestGlobals requestGlobals;

    @Inject
    private ThreadLocale threadLocale;

    public void contributeRequestHandler(OrderedConfiguration<RequestFilter> configuration,
            @InjectService("TimingFilter")
            RequestFilter filter,
            ThreadLocale locale)
    {
        // Each contribution to an ordered configuration has a name, When necessary, you may
        // set constraints to precisely control the invocation order of the contributed filter
        // within the pipeline.

    	Map<String, Locale> serverNameMapping = new HashMap<String,Locale>();
    	
    	serverNameMapping.put("www.domain.com", Locale.ENGLISH);
    	serverNameMapping.put("www.domain.de", Locale.GERMAN);
    	serverNameMapping.put("www.domain.fr", Locale.FRENCH);
    	
    	configuration.add("Timing", filter);
        configuration.add("HostBasedLocalization", new HostBasedLocaleFilter(threadLocale, Locale.GERMAN, serverNameMapping), "after:Localization");

    }

import java.io.IOException;
import java.util.Locale;
import java.util.Map;

import org.apache.tapestry.ioc.services.ThreadLocale;
import org.apache.tapestry.services.Request;
import org.apache.tapestry.services.RequestFilter;
import org.apache.tapestry.services.RequestHandler;
import org.apache.tapestry.services.Response;

public class HostBasedLocaleFilter implements RequestFilter {

	private Map<String, Locale> serverNameMapping;

	private Locale              defaultLocale;

	private ThreadLocale        threadLocale;

	public HostBasedLocaleFilter(final ThreadLocale threadLocale, final Locale defaultLocale, final Map<String, Locale> serverNameMapping) {
		this.serverNameMapping = serverNameMapping;
		this.defaultLocale = defaultLocale;
		this.threadLocale = threadLocale;
	}

	public boolean service(Request request, Response response, RequestHandler handler) throws IOException {
		String servername = request.getParameter("Host");
		System.out.println(servername);
		Locale locale = this.serverNameMapping.get(servername);
		if (locale == null) {
			locale = this.defaultLocale;
		}
		threadLocale.setLocale(locale);
				
		return handler.service(request, response);
	}

}