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package com.acme.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.ejb.EJB;
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceUnit;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.acme.ejb.api.Hello;
import com.acme.util.TestDatabase;
@WebServlet(urlPatterns = "/HelloServlet", loadOnStartup = 1)
@SuppressWarnings("serial")
public class HelloServlet extends HttpServlet {
String msg = "";
@EJB(name = "java:module/m1", beanName = "HelloSingleton", beanInterface = Hello.class)
Hello h;
@PersistenceUnit(unitName = "pu1")
@TestDatabase
private EntityManagerFactory emf;
// @Inject
// private ResourcesProducer rp;
//
// @Inject
// private TestDependentBeanInLib fb;
// @Inject
// private TestManagedBean tmb;
// @Inject
// private TestSessionScopedBeanInLib tssil;
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
System.out.println("In HelloServlet::doGet");
resp.setContentType("text/html");
PrintWriter out = resp.getWriter();
checkForNull(emf, "Injection of EMF failed in Servlet");
//ensure EMF works!
emf.createEntityManager();
//call Singleton EJB
String response = h.hello();
if(!response.equals(Hello.ALL_OK_STRING))
msg += "Invocation of Hello Singeton EJB failed:msg=" + response;
// if (!rp.isInjectionSuccessful())
// msg += "Injection of a bean in lib directory into another " +
// "Bean in lib directory failed";
// checkForNull(fb, "Injection of a bean that is placed in lib directory " +
// "into a Servlet that is placed in a WAR failed");
// checkForNull(tmb, "Injection of a Managed bean that is placed in lib directory " +
// "into a Servlet that is placed in a WAR failed");
// checkForNull(tssil, "Injection of a session scoped Bean placed in lib dir into a " +
// "into a servlet in that ear failed");
// if (!rp.isInjectionSuccessful())
// msg += "Injection of a bean in lib directory into another Bean " +
// "in lib directory failed";
// if (!tmb.isInjectionSuccessful())
// msg += "Injection of a Bean placed in lib dir into a " +
// "ManagedBean placed in lib dir failed";
out.println(msg);
}
protected void checkForNull(Object o, String errorMessage){
System.out.println("o=" + o);
if (o == null) msg += " " + errorMessage;
}
}