Rich text resolution - kontent-ai/java-packages GitHub Wiki

Rich text resolution

This page describes the possibility to resolve rich text elements.

Prerequisites

Type-based string resolution resolution

Example.

If you wish to resolve the components/inline linked items into the string.You could use registerInlineContentItemsResolver.

// Tweet is strongly typed model
client.registerInlineContentItemsResolver(new InlineContentItemsResolver<Tweet>() {
    @Override
    public String resolve(Tweet item) {
        return "<div>" + item.getTweetTitle() + "</div>";
    }
});

(Thymeleaf) Template engine

Automatic template resolution

😉START with the example😉

Create Thymeleaf templates to the resources to specific places (currently "kentico/templates/", "META-INF/kentico/templates/", "kentico/kontent/templates/", "META-INF/kentico/kontent/templates/"), with name <ITEM_TYPE_CODENAME>.html suffix - as for hosting_video.

Location customizable by extending the default Template engine.

TemplateEngineConfig config = new TemplateEngineConfig();
config.getViewResolverConfiguration().addPrefixes("acme/templates/");
config.getViewResolverConfiguration().setSuffix(".template");
DeliveryClient client = new DeliveryClient(
        DeliveryOptions
                .builder()
                .projectId("975bf280-fd91-488c-994c-2f04416e5ee3")
                .build(),
        config);

Completely custom template configuration i.e. Default fallback rich text element resolver

To completely customize the template configuration, it is possible to create your own implementation of TemplateEngineConfig (and TemplateEngine)

In the following example, it is possible i.e. to use the default implementation of TemplateEngineConfig and TemplateEngine and i.e. add "Default fallback resolver" for all other types that are not registered via registerInlineContentItemsResolver.

class CustomTemplateEngine implements  TemplateEngine {

    private ViewResolverConfiguration viewResolverConfiguration;

    @Override
    public void setViewResolverConfiguration(ViewResolverConfiguration viewResolverConfiguration) {
        this.viewResolverConfiguration = viewResolverConfiguration;
    }

    @Override
    public String process(TemplateEngineModel data) {
        // You can use viewResolverConfiguration if you need it as well

        if(data.getInlineContentItem() instanceof Tweet) {
            Tweet item = (Tweet) data.getInlineContentItem();

            return "<div>" + item.getTweetTitle() + "</div>";
        }
        else {
            // Or raise exception
            return "UNKNOWN COMPONENT!";
        }
    }
}
class CustomTemplateConfiguration extends TemplateEngineConfig {

    @Override
    public void init() {
        super.init();
        this.addResolvers(new TemplateEngineInlineContentItemsResolver() {
            @Override
            public boolean supports(TemplateEngineModel data) {
                // Define supported content items
                return data.getInlineContentItem() instanceof Tweet;
            }

            @Override
            public TemplateEngine getTemplateEngine() {
                return new CustomTemplateEngine();
            }
        });
    }
}
DeliveryClient client = new DeliveryClient(
    DeliveryOptions
        .builder()
        .projectId("975bf280-fd91-488c-994c-2f04416e5ee3")
        .customHeaders(Arrays.asList(
            new Header(TRACKING_HEADER_NAME, TRACKING_HEADER_VALUE)
        ))
        .build(),
    new CustomTemplateConfiguration()
);

TODO: Structured rich text element mapping

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