Hi
I am trying to reduce the compilation time of my GWT app. There are about
160 permutations done for now and the reason is big number of
languages/locales supported. The main idea is to get rid of the static
compilation and replace it with dynamic loading of localized data. I have
almost succeeded, but now I am facing the problem with linker, which does
not expose public artifacts when I run project from IntelliJ Idea. I will
give more details and then point where the problem is now.
I already have the `Messages` interface and multiple `.properties` files
with defined translations and also I am using GXT library, which also uses
'static' internationalization. Thus the only way I can imagine myself is to
replace the Localizable generator with my own implementation. I have
defined it in a separate module:
<generate-with class="org.traccar.web.i18n.rebind.LocalizableGenerator">
<when-type-assignable class="com.google.gwt.i18n.shared.Localizable" />
</generate-with>
Then in generator I simply produce a single implementation, which will use
another class to load the strings from module's resources available under
{module.base.url}/i18n/path/to/package/ClassName/{locale}, for example
MyModule/i18n/com/google/gwt/i18n/client/constants/NumberConstantsImpl/ru
I intend to store the localized strings as JSON object, which will be generated
by the 'generator' as well. Here is the code of my 'LocalizableGenerator':
JsonFactory jsonFactory = new JsonFactory();
for (GwtLocale locale : localeParams.allLocales) {
AbstractResource.ResourceList resourceList = null;
try {
resourceList = ResourceFactory.getBundle(logger, targetClass, locale,
assignableToConstants, context);
OutputStream os = context.tryCreateResource(logger, resource + "/" +
locale.toString());
if (os != null) {
JsonGenerator jg = jsonFactory.createGenerator(os,
JsonEncoding.UTF8);
jg.writeStartObject();
for (String key : resourceList.keySet()) {
AbstractResource.ResourceEntry entry =
resourceList.getEntry(key);
Collection<String> forms = entry.getForms();
if (forms.isEmpty()) {
jg.writeStringField(key, resourceList.getString(key));
} else {
jg.writeObjectFieldStart(key);
jg.writeStringField("null", resourceList.getString(key));
for (String form : forms) {
jg.writeStringField(form, entry.getForm(form));
}
jg.writeEndObject();
}
}
jg.writeEndObject();
jg.flush();
GeneratedResource generatedResource =
context.commitResource(logger, os);
context.commitArtifact(logger, generatedResource);
}
} catch (MissingResourceException e) {
throw error(logger,
"Localization failed; there must be at least one resource
accessible through"
+ " the classpath in package '" +
targetClass.getPackage().getName()
+ "' whose base name is '"
+ ResourceFactory.getResourceName(targetClass) + "'");
} catch (IllegalArgumentException e) {
// A bad key can generate an illegal argument exception.
throw error(logger, e.getMessage());
} catch (IOException e) {
throw error(logger, e);
}
}
The generation works just fine. I can see produced files in a temporary folder.
Looks like they are included in the .war file as well when I produce it with
maven. However, they are not visible when I run my application in SDM from
IntelliJ Idea.
Full source code is available on github:
https://github.com/vitalidze/traccar-web/tree/dynamic_i18n
Commit with above changes:
https://github.com/vitalidze/traccar-web/commit/12ceb111e20bb79aa9e046b9b9db5aae5aa84ffd
Any help appreciated.
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