Skip to content

Instantly share code, notes, and snippets.

@benoit-ponsero

benoit-ponsero/Application.java

Created October 16, 2012 15:00
Show Gist options
  • Save benoit-ponsero/3899812 to your computer and use it in GitHub Desktop.
Save benoit-ponsero/3899812 to your computer and use it in GitHub Desktop.
Download ZIP
Play2 JsMessages
Raw
Application.java
package controllers;
import play.*;
import play.mvc.*;
import views.html.*;
import utils.JsMessages;
public class Application extends Controller {
public static Result index() {
return ok(index.render("Your new application is ready."));
}
public static Result jsMessages() {
return JsMessages.expose("js.*","standalone.key");
}
}
Raw
index.scala.html
@(title: String)
<html>
<head>
</head>
<body>
<script type="text/javascript" src="@routes.Application.jsMessages()"></script>
<script type="text/javascript">
console.log(
jsMessages('js.hello', 'world')
)
console.log(
jsMessages('standalone.key')
)
</script>
</html>
Raw
JsMessages.java
package utils;
import org.apache.commons.lang3.StringEscapeUtils;
import play.Play;
import play.api.Application;
import play.api.i18n.Messages;
import play.api.mvc.Codec;
import play.libs.Crypto;
import play.mvc.Http;
import play.mvc.Result;
import play.i18n.Lang;
import play.mvc.Results;
import scala.collection.JavaConversions;
import scala.collection.immutable.Map$;
import java.util.Map;
import java.util.HashMap;
public class JsMessages {
private static Map<String, Result> cached = new HashMap<String,Result>();
public synchronized static Result expose(String... exposedKeys){
String lang = Http.Context.current().lang().code();
Application app = play.Play.application().getWrappedApplication();
String cachedKey = Crypto.sign(
lang + Http.Context.current().request().path()
);
Result result = cached.get(cachedKey);
if (result == null){
Map<String,String> messages = new HashMap<String, String>();
messages.putAll(JavaConversions.mapAsJavaMap(
Messages.messages(app).get("default").get()
));
messages.putAll(JavaConversions.mapAsJavaMap(
Messages.messages(app).get(lang).get()
));
String content = "var __messages__ = __messages__ || {};var jsMessages=function(c){var a=__messages__[c];if('undefined'==typeof a)return c;for(var b=1;b<arguments.length;b++)a=a.replace(RegExp('\\\\{'+(b-1)+'\\\\}','g'),arguments[b]);return a};";
content+="(function (__messages__){";
String jsKeys = "";
for (String exposeKey : exposedKeys){
if (exposeKey.endsWith(".*")){
String pattern = exposeKey.substring(0, exposeKey.length()-2);
for (String key : messages.keySet()){
if (key.startsWith(pattern)){
jsKeys += "'" + key + "':'"+ StringEscapeUtils.escapeEcmaScript(messages.get(key)) + "',";
}
}
} else {
String trad = messages.get(exposeKey);
if (trad != null){
jsKeys += "'" + exposeKey + "':'"+ StringEscapeUtils.escapeEcmaScript(trad) + "',";
}
}
}
if (jsKeys.length()>0){jsKeys = jsKeys.substring(0, jsKeys.length()-1);}
content+="var _exposed = {" + jsKeys+"};";
content+="var _extend=function(b,c){var b=b||{},a;for(a in c)b[a]='object'===typeof c[a]?extend(b[a],c[a]):c[a];return b};_extend(__messages__, _exposed);})(__messages__)";
result = new Results.Status(
play.core.j.JavaResults.Ok(), content, Codec.javaSupported("utf-8")
).as("application/javascript");
cached.put(cachedKey,result);
}
return result;
}
}
Raw
messages
js.hello=Hello {0}
stanalone.key=This a desc with a "lot" of 'escaping characters'
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment