appserver/tests/appserv-tests/devtests/cdi/javaee-integration/cdi-servlet-3.0-annotation-with-web-inf-lib-ordering/servlet/servlet/TestServlet.java

/*
 * Copyright (c) 2010, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package servlet;

import test1.Foo;
import test2.Bar;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;
import java.util.Set;

import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebInitParam;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.inject.Inject;
import jakarta.enterprise.inject.Any;
import jakarta.enterprise.inject.Default;
import jakarta.enterprise.inject.spi.BeanManager;
import jakarta.enterprise.util.AnnotationLiteral;
import javax.naming.InitialContext;

@WebServlet(
    name = "mytest",
    urlPatterns = { "/myurl" },
    initParams = {
        @WebInitParam(name = "n1", value = "v1"),
        @WebInitParam(name = "n2", value = "v2") })
public class TestServlet extends HttpServlet {
    @Inject
    TestBean tb;

    @Inject
    BeanManager bm;

    @Inject
    Foo f; // from WEB-INF/lib/alpha.jar

    @Inject
    Bar b; // from WEB-INF/lib/bravo.jar

    BeanManager bm1;

    @Inject
    private transient org.jboss.logging.Logger log;

    public void service(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException {

        PrintWriter writer = res.getWriter();
        writer.write("Hello from Servlet 3.0. ");
        String msg = "n1=" + getInitParameter("n1") + ", n2=" + getInitParameter("n2");

        // Bean Injection
        if (tb == null)
            msg += "Bean injection into Servlet failed";

        if (f == null)
            msg += "Bean injection of a TestBean(foo) in WEB-INF/lib/alpha.jar into Servlet failed";
        System.out.println("Test Bean foo from WEB-INF/lib/alpha.jar=" + f);

        if (b == null)
            msg += "Bean injection of a TestBean(bar) in WEB-INF/lib/bravo.jar into Servlet failed";
        System.out.println("Test Bean foo from WEB-INF/lib/bravo.jar=" + b);

        // BeanManager Injection
        System.out.println("BeanManager is " + bm);
        if (bm == null)
            msg += "BeanManager Injection via @Inject failed";

        try {
            bm1 = (BeanManager) ((new InitialContext()).lookup("java:comp/BeanManager"));
            System.out.println("BeanManager via lookup is " + bm1);
        } catch (Exception ex) {
            ex.printStackTrace();
            msg += "BeanManager Injection via component environment lookup failed";
        }
        if (bm1 == null)
            msg += "BeanManager Injection via component environment lookup failed";

        // Check if Beans in WAR(WEB-INF/classes) and WEB-INF/lib/*.jar are visible
        // via BeanManager of WAR
        Set warBeans = bm.getBeans(TestBean.class, new AnnotationLiteral<Any>() {
        });
        if (warBeans.size() != 1)
            msg += "TestBean in WAR is not available via the WAR BeanManager";

        Set webinfLibBeans = bm.getBeans(Foo.class, new AnnotationLiteral<Any>() {
        });
        if (webinfLibBeans.size() != 1)
            msg += "TestBean Foo in WEB-INF/lib/alpha.jar is not available via the WAR BeanManager";
        System.out.println("Test Bean Foo from WEB-INF/lib/alpha.jar via BeanManager:" + webinfLibBeans);

        webinfLibBeans = bm.getBeans(Bar.class, new AnnotationLiteral<Any>() {
        });
        if (webinfLibBeans.size() != 1)
            msg += "TestBean Bar in WEB-INF/lib/bravo.jar is not available via the WAR BeanManager";
        System.out.println("Test Bean Bar from WEB-INF/lib/bravo.jar via BeanManager:" + webinfLibBeans);

        writer.write("initParams: " + msg + "\n");
    }
}