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Possibilidade de usar Hypermedia com o GSON

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package br.eti.clairton.gson.hypermedia;

import static java.util.logging.Level.FINE;

import java.lang.reflect.Type;
import java.util.Collection;
import java.util.logging.Logger;

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

import br.eti.clairton.jpa.serializer.Tagable;
import br.eti.clairton.paginated.collection.Meta;
import br.eti.clairton.paginated.collection.PaginatedCollection;

public abstract class HypermediablePaginatedCollectionSerializer extends Tagable implements JsonSerializer>, Hypermediable> {
	private static final Logger logger = Logger.getLogger(HypermediablePaginatedCollectionSerializer.class.getSimpleName());
	private static final long serialVersionUID = 1L;

	@Override
	public JsonElement serialize(final PaginatedCollection src, final Type type, final JsonSerializationContext context) {
		final Collection collection = src;
		final JsonElement json = context.serialize(collection, Collection.class);
		final JsonObject object;
		if (JsonObject.class.isInstance(json)) {
			object = (JsonObject) json;
			logger.log(FINE, "Already is JsonObject instance");
		} else {
			object = new JsonObject();
			final String tag = getRootTagCollection(src);
			object.add(tag, json);
			logger.log(FINE, "Create json with root tag {}", tag);
		}
		final Meta meta = src.unwrap(Meta.class);
		final JsonElement element = context.serialize(meta);
		logger.log(FINE, "Add meta {}", element);
		object.add("meta", element);
		return object;
	}
}