package fi.markoa.tfb.servlet3;
import com.google.common.util.concurrent.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.AsyncContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.concurrent.ThreadLocalRandom;
/**
* Web Framework Benchmarks
* Test type 2: Single database query
*
* @author marko asplund
*/
@WebServlet(urlPatterns={"/db"}, asyncSupported=true)
public class DatabaseQueryServlet extends DatabaseBaseServlet {
private static final Logger LOGGER = LoggerFactory.getLogger(DatabaseQueryServlet.class);
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
resp.setContentType(MEDIATYPE_APPLICATION_JSON);
AsyncContext asyncContext = req.startAsync();
int randId = ThreadLocalRandom.current().nextInt(WORLD_LEAST_VALUE, WORLD_BOUND_VALUE+1);
ListenableFuture<?> future = dao.read(randId);
addResponseCallback(asyncContext, future, executorService);
}
}