Qute and (localized) values of a *.properties file

[Torsten Reinhard]

Hi,

in our backend project we have a Label.properties as well as Label_de_DE.properties (and more for other languages).

I used https://github.com/kklisura/props-to-constants-generator to generate  (type-safe) constants for each key of my *.properties file:

public final class LabelsConstants {
   public static final String VEHICLEDATA_MODEL = "vehicleData.model"; 
   public static final String REPORTTITLES_KEYDATA = "reportTitles.keyData";
   ...
}

How can I access the localized values now in my (type-safed) Qute templates?

Here´s my Template:

@CheckedTemplate(basePath = "")
final class HtmlTemplates {
...
public static native TemplateInstance keyData(

MyItem item

)

And my template looks like:

{@foo.bar.MyItem}

{#title}{item.get(LabelConstants. REPORTTITLES_KEYDATA) }{/title}

My idea is to pass a ResourceBundle and than use rb.get( LabelConstants.MY_CONSTANT) somehow in the template.

Can you point me in the right direction how to achieve this ?

What´s the recommended way to use checked Templates with values from a *.properties File ? I dont want to use String identifiers in my templates like "foo.bar" that will probably not resolve. Instead, the Constants class should be used.

Thanx, Toschder

[Martin Kouba]

Hi,

added some comments inline...

On 28. 07. 22 11:25, Torsten Reinhard wrote:
> Hi,
>

> in our backend project we have a /Label.properties/ as well as
> /Label_de_DE.properties/ (and more for other languages).

> I used https://github.com/kklisura/props-to-constants-generator
> <https://github.com/kklisura/props-to-constants-generator> to generate
> (type-safe) constants for each key of my *.properties file:
>
> public final class LabelsConstants {
>    public static final String VEHICLEDATA_MODEL = "vehicleData.model";
>    public static final String REPORTTITLES_KEYDATA =
> "reportTitles.keyData";
>    ...
> }
>
> How can I access the localized values now in my (type-safed) Qute templates?
>
> Here´s my Template:
>
> @CheckedTemplate(basePath = "")
> final class HtmlTemplates {
> ...
> public static native TemplateInstance keyData(
> MyItem item
> )
>
> And my template looks like:
> {@foo.bar.MyItem}
> {#title}{item.get(LabelConstants. REPORTTITLES_KEYDATA) }{/title}
>
> My idea is to pass a ResourceBundle and than use rb.get(
> LabelConstants.MY_CONSTANT) somehow in the template.

This should work. But you'll need to make the constants available in the
templates. One of the possible solutions is to annotate the
LabelsConstants class with @TemplateData [1] and then use something like
{rb.get(LabelsConstants:MY_CONSTANT)}.

[1]
https://quarkus.io/guides/qute-reference#accessing-static-fields-and-methods

> Can you point me in the right direction how to achieve this ?
> What´s the recommended way to use checked Templates with values from a
> *.properties File ? I dont want to use String identifiers in my
> templates like "foo.bar" that will probably not resolve. Instead, the
> Constants class should be used.

ResourceBundle is ok. You can also try to use the Type-safe Message
Bundles [2] but here you'd need to create the type-safe message
interface first (instead of the constants).

[2]
https://quarkus.io/guides/qute-reference#type-safe-message-bundles

>
> Thanx, Toschder
>
>
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--
Martin Kouba
Software Engineer
Red Hat, Czech Republic