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copied!<p>I found a solution in some old change notes for Play 1.1: <a href="http://www.playframework.org/documentation/1.2/releasenotes-1.1" rel="nofollow">http://www.playframework.org/documentation/1.2/releasenotes-1.1</a> (under "Global route arguments"). Odd that it isn't mentioned anywhere else.</p> <p>[Edited to include the entire working solution] [Edit2 - Fixed a problem]</p> <p>My routes file look like this:</p> <pre><code># Home page GET /{lang}/? Application.index GET / Application.redirect GET /{lang}/woops/? Application.underConstruction </code></pre> <p>The language controller looks like this atm:</p> <pre><code>public class Language extends Controller { @Before static void detectLangInURL() { String url = request.url; if (url.length() > 2 && isSupported(getFromUrl(url))) { String lang = getFromUrl(url); if (!Lang.get().equals(lang)) { Lang.change(lang); response.setCookie("lang", lang, "60d"); } renderArgs.put("lang", Lang.get()); routeArgs.put("lang", Lang.get()); } } private static String getFromUrl(String url) { String[] s = url.split("[/]"); if (s.length > 1) return s[1]; else return ""; } private static boolean isSupported(String lang) { if (lang.length() == 0) return false; String[] langList = Play.configuration.get("application.langs").toString().split(","); for (int i = 0; i < langList.length; i++) { if (langList[i].compareToIgnoreCase(lang) == 0) return true; } return false; } } </code></pre> <p>The redirect method looks like this:</p> <pre><code>public static void redirect() { Cookie lang = request.current().cookies.get("lang"); if (lang != null && !lang.value.isEmpty()) Lang.change(lang.value); redirect(Lang.get() + "/"); } </code></pre> <p>I had to choose between using a <code>@With(Language.class)</code> annotation or changing the Controller super class. I choose the @With annotation.</p> <p>I'm pleased, it ended up being pretty simple. I hope someone can benefit from the above.</p>

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