Support JSON ContentType

I’d like to use this template language to fill in some large JSON. Do you think it makes sense to have a ContentType.Json, that escapes all JSON values like done here in JsonValue.escape()?

[spinscale]

Just for the internet archive and google. I solved this with a special output, that escapes user content like this

    private static final class JsonStringOutput extends StringOutput {
        @Override
        public void writeUserContent(String value) {
            super.writeUserContent(escape(value));
        }
    }

    String render(final String templateName, final Map<String, Object> params) {
        try (StringOutput output = new JsonStringOutput()) {
            templateEngine.render(templateName + ".jte", params, output);
            return output.toString();
        }
    }

    public String string escape(String input) {
       ...
    }

I used the escape logic from minimal-json at https://github.com/ralfstx/minimal-json/blob/master/com.eclipsesource.json/src/main/java/com/eclipsesource/json/JsonWriter.java

[kelunik]

@spinscale Seems like it’s easy enough to solve without specialized support. Instead of only escaping strings, something like fastjson’s JSON.toJSONString() converting any object might be good.

It might be a good idea to decouple some things, so full support can be implemented by plug-ins.