sample.todosapp.vertx.simplified.TodoDataVerticle.java Source code

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Here is the source code for sample.todosapp.vertx.simplified.TodoDataVerticle.java

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package sample.todosapp.vertx.simplified;

import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.HashMap;
import java.util.Map;
import org.springframework.boot.SpringApplication;
import org.springframework.context.ConfigurableApplicationContext;
import org.vertx.java.core.eventbus.Message;
import org.vertx.java.core.json.JsonObject;
import org.vertx.java.platform.Verticle;
import sample.todosapp.vertx.domain.Config;
import sample.todosapp.vertx.domain.Todo;
import sample.todosapp.vertx.domain.TodoRepository;

/**
 *
 * @author relai
 */
public class TodoDataVerticle extends Verticle {

    private ConfigurableApplicationContext springContext;

    @Override
    public void start() {
        // Initialize the verticle
        SpringApplication app = new SpringApplication(Config.class);
        springContext = app.run();

        vertx.eventBus().registerHandler("TodoData", this::onMessage);
    }

    @Override
    public void stop() {
        super.stop();
        if (springContext != null) {
            springContext.close();
        }
    }

    private void onMessage(Message<JsonObject> message) {
        JsonObject command = message.body();

        // Only "findOne" is supported in this example 
        assert ("findOne".equals(command.getString("action")));

        Long id = command.getLong("id");
        Todo todo = findOneById(id);
        JsonObject payload = toJson(todo);
        message.reply(payload);
    }

    private Todo findOneById(Long id) {
        TodoRepository repository = springContext.getBean(TodoRepository.class);
        return repository.findOne(id);
    }

    private JsonObject toJson(Object pojo) {
        ObjectMapper mapper = new ObjectMapper();
        Map map = mapper.convertValue(pojo, HashMap.class);
        return new JsonObject(map);
    }

}