lightoze / gwt-i18n-server Goto Github PK

Hi, what is the project license?

Found nothing on pom, readme.md and java sources headers....

The GWT-specific i18n format is currently not supported yet (See http://www.gwtproject.org/doc/latest/DevGuideI18nMessages.html#GwtFormats)

Here is a simple example :

In the properties file :

hello = Hello, {startBold,<b>}{0}{endBold,</b>}

When rendering this message on the server side, an exception will be thrown :

java.lang.IllegalArgumentException: can't parse argument number: startBold
    at java.text.MessageFormat.makeFormat(MessageFormat.java:1420)
    at java.text.MessageFormat.applyPattern(MessageFormat.java:479)
    at java.text.MessageFormat.<init>(MessageFormat.java:381)
    at net.lightoze.gwt.i18n.server.MessagesProxy.invoke(MessagesProxy.java:107)

GWT falls back to the default locale on the client side if an invalid one is given. The I18nFilter doesn't do that. Is this as intended? I would have put a try/catch around LocaleUtils.toLocale(String str).

Hi,
I've noticed that LocaleProxy.loadBundle(Class clazz, String locale) searches for properties files only in the package of the clazz and its super classes. GWT 2.7 (and I strongly believe that same applies to 2.6) also searches the root package.

You probably dont want to run this in loadBundle as it would process the same bundle for each super class, but it should get incorporated in the dereferencing process:

InputStream stream = getClassLoader().getResourceAsStream(clazz.getSimpleName() + (locale == null?"":"_" + locale) + ".properties")

GWT 2.6. compile fails with this error:

[ERROR] Exception in thread "main" java.lang.VerifyError: class com.google.gwt.i18n.tools.ArgHandlerValueChooser$1 overrides final method getPurpose.()Ljava/lang/String;
[ERROR]     at java.lang.ClassLoader.defineClass1(Native Method)
[ERROR]     at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
[ERROR]     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
[ERROR]     at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
[ERROR]     at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
[ERROR]     at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
[ERROR]     at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
[ERROR]     at java.security.AccessController.doPrivileged(Native Method)
[ERROR]     at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
[ERROR]     at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
[ERROR]     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
[ERROR]     at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
[ERROR]     at com.google.gwt.i18n.tools.I18NSync.<init>(I18NSync.java:342)
[ERROR]     at com.google.gwt.i18n.tools.I18NSync.main(I18NSync.java:235)

Hello,

I am trying to use your library for server translation but I can't make it work properly.

I am calling this in onModuleLoad() method:

then I put this in our web.xml:

    <filter>
        <filter-name>i18n</filter-name>
        <filter-class>net.lightoze.gwt.i18n.server.I18nFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>i18n</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <listener>
        <listener-class>net.lightoze.gwt.i18n.server.I18nInitializer</listener-class>
    </listener>

then on server side (RPC service):

Constants locale = LocaleFactory.get(Constants.class);
System.out.println("message: " + locale.trCo_claim_search_state_CANCELED() + ", lang: " + LocaleProxy.getLocale().getLanguage());


I got translated message but always in default locale even when lang is changing correctly by parameter in URL. What I am doing wrong?

Thanks for help.

It'd be nice if gwt-i18n-server would support GWT 2.5, which introduces some new constants (e.g. NumberConstants has a new globalCurrencyPattern.

If you think it'll be a while before you can do this, lemme know and I'll consider sending you a pull request.

Thanks for your work.

When using version 0.23 on the server side, and calling a Message method that has a parameter (eg: "Value: {0}"), I get the following:

Caused by: java.lang.NoClassDefFoundError: com/google/gwt/safehtml/shared/SafeHtml
        at com.google.gwt.i18n.server.Type.<clinit>(Type.java:114)
        at com.google.gwt.i18n.server.impl.ReflectionMessage.mapClassToType(ReflectionMessage.java:192)
        at com.google.gwt.i18n.server.impl.ReflectionMessage.access$100(ReflectionMessage.java:44)
        at com.google.gwt.i18n.server.impl.ReflectionMessage$ReflectionParameter.<init>(ReflectionMessage.java:52)
        at com.google.gwt.i18n.server.impl.ReflectionMessage.getParameters(ReflectionMessage.java:126)
        at com.google.gwt.i18n.server.AbstractMessage.init(AbstractMessage.java:341)
        at com.google.gwt.i18n.server.impl.ReflectionMessage.<init>(ReflectionMessage.java:101)
        at net.lightoze.gwt.i18n.server.LocaleProxy.getKey(LocaleProxy.java:193)
        at net.lightoze.gwt.i18n.server.MessagesProxy.getDescriptor(MessagesProxy.java:120)
        at net.lightoze.gwt.i18n.server.MessagesProxy.invoke(MessagesProxy.java:64)
        at com.sun.proxy.$Proxy593.lastN(Unknown Source)
        at com.saucontds.dlog.portal.view.DriverLogReportPDF$UsedHoursTable.<init>(DriverLogReportPDF.java:91)
        at com.saucontds.dlog.portal.view.DriverLogReportPDF.buildPdfDocument(DriverLogReportPDF.java:434)
        at saucon.portal.common.view.AbstractItextPDFView.renderMergedOutputModel(AbstractItextPDFView.java:59)
        at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:264)
        at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1208)
        at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:992)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:939)
        ... 25 more
Caused by: java.lang.ClassNotFoundException: com.google.gwt.safehtml.shared.SafeHtml
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1718)
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1569)
        ... 43 more

I believe this is due to line 114 in com.google.gwt.i18n.server.Type:

public static final Type SAFEHTML = new Type(SafeHtml.class.getCanonicalName());

SafeHtml is not present in the gwt-i18n-server jar.

I resolved it by building gwt-i18n-server myself and adding

<include>com/google/gwt/safehtml/shared/SafeHtml.class</include>

to the pom.xml under the maven-shade-plugin section.

Hello, we are getting DEAD LOCK problem in concurrent access;

java.lang.Thread.State: RUNNABLE
at java.util.Hashtable.get(Hashtable.java:458)

• locked <0x0000000700a34e40> (a java.util.Properties)
  at java.util.Properties.getProperty(Properties.java:951)
  at net.lightoze.gwt.i18n.server.MessagesProxy.invoke(MessagesProxy.java:128)
  at net.lightoze.gwt.i18n.server.MessagesWithLookupProxy.invoke(MessagesWithLookupProxy.java:33)
  at com.sun.proxy.$Proxy0._894782(Unknown Source)

  java.lang.Thread.State: BLOCKED (on object monitor)
  at java.util.Hashtable.get(Hashtable.java:458)

• locked <0x0000000700a34e40> (a java.util.Properties)
  at java.util.Properties.getProperty(Properties.java:951)
  at net.lightoze.gwt.i18n.server.MessagesProxy.invoke(MessagesProxy.java:128)
  at net.lightoze.gwt.i18n.server.MessagesWithLookupProxy.invoke(MessagesWithLookupProxy.java:33)
  at com.sun.proxy.$Proxy0._894782(Unknown Source)

Hi,

I've been using this library to set locale for both client and server side. However, I've hit a bump.

LocaleProxy class holds the locale, specific per thread (i.e. as a ThreadLocal variable). However, when I make calls from client side to server side, each time a different (seemingly random) thread is associated on server side. Hence, the server side returns localized results to the same client session with arbitrary locales.

What am I doing wrong? Any help would be appreciated.
I am using GWT 1.7 with Tomcat 6.0. Thanks.

Hi,

A simple list format is throwing this exception below. Let me know if this is a know issue or under development. Maybe I can help.

java.util.ArrayList cannot be cast to java.lang.Number
Caused by:
java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.lang.Number
at net.lightoze.gwt.i18n.server.MessagesProxy.invoke(MessagesProxy.java:70)

Code:

@DefaultMessage("Weekdays {0,list,text}.")
@AlternateMessage({ "=1", "Weekday {0,list,text}."})
String weekdays(@PluralCount List listWeekDaysNames);

On Server:
LocaleProxy.initialize();
LanguageMessages messages = LocaleFactory.get(LanguageMessages.class);
ThreadLocalLocaleProvider.pushLocale(new Locale(someLocale));

List listNames = new ArrayList(0);
listNomes.add("sunday");
listNomes.add("monday");

String transationTest = messages.weekdays(listNames); //EXCEPTION HERE

Thanks in advance,
[],
Rodrigo

I see that LocaleFactory in version 0.16 has java.util.Locale as a parameter in the put() method. java.util.Locale is not implemented in the GWT JRE. So this class is no longer valid to use on the client. Is that intentional and this lib is now only functional on the server?

Thanks
Travis

LocaleProxy uses ThreadLocal to store the locale's. We use Play Framework at my office which doesn't work well with ThreadLocal. I suspect many of the newer async web frameworks will also have trouble.

Perhaps LocalProxy can take an optional argument if a LocaleProvider interface and the system can use the LocaleProvider to get the local and the user of the api could provide the LocaleProvider.

I encountered a problem for strings in properties files that contain non ISO 8859-1 characters. My properties files are encoded as UTF-8 since they are primarily used in GWT which reads them as such.

The problem is that gwt-i18n-server relies on java.util.ResourceBundle which assumes the files are in ISO 8859-1 and this produces character sequences like é for é and so on.

My workaround is to do

new String(constants.propertyKey().getBytes("ISO-8859-1"), "UTF-8")

instead of

constants.propertyKey()

, but this should be done by gwt-i18n-server itself I think.

Hello,
i'm testing your librarie, and i've detected a limitation :
properties files are only searched based on the name of the class you asked for. For example :

LocaleFactory.get(MyMessages.class) will only search for MyMessage_*.properties

But in client-side GWT, the deferred binding search into the whole Inheritance tree, for example, if you have :

interface AppMessages extends Messages {
}

interface MyWidgetMessages extends AppMessages {
String mykey();
}

and have a GWT.create(MyWidgetMessages.class), it'll search properties into :

• package/MyWidgetMessages_locale.properties
• package/AppMessages_locale.properties
  and even :
• com/google/gwt/i18n/client/LocalizableResource_locale.properties

In my case, the last file is the only one i define for my whole app (i mean, one per locale for sure)

Do you planned to add this feature (i'll check on my side btw) ?
Anthony.