BusinessMethodInterceptorTestServlet.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2017 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://oss.oracle.com/licenses/CDDL+GPL-1.1
 * or LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package test.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.inject.Inject;
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 test.beans.AnotherTestBean;
import test.beans.Preferred;
import test.beans.TestBean;
import test.beans.TestInterceptor;


@WebServlet(name = "mytest", urlPatterns = { "/myurl" })
public class BusinessMethodInterceptorTestServlet extends HttpServlet {

    @Inject
    TestBean tb;


    @Inject @Preferred
    String echoMessage;


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

        PrintWriter writer = res.getWriter();
        writer.write("Hello from Servlet 3.0.");
        String msg = "";

        if (tb == null) {
            msg += "Injection of request scoped bean failed ";
        }

        // Violate the constraint on the echo method
        try {
            tb.echo(null);
            msg += "; Expected ConstraintViolationException not thrown ";
        } catch (Exception e) {
            // Expected exception
            if (!"javax.validation.ConstraintViolationException".equals(e.getClass().getName())) {
                msg += "; Unexpected exception: " + e.getClass().getName();
            }
        }

        // Since validation failed, the aroundConstruct interceptor method should still have been called
        if (!TestInterceptor.aroundConstructCalled) {
            msg += "; Business method interceptor aroundConstruct was not called ";
        }

        // Since validation failed, the interceptor should not have been called
        if (TestInterceptor.aroundInvokeCalled || TestInterceptor.aroundInvokeInvocationCount != 0) {
            msg += "; Business method interceptor aroundInvoke should not have been called ";
        }

        tb.echo("Test Echo Request Message");

        if (!TestInterceptor.aroundConstructCalled) {
            msg += "; Business method interceptor aroundConstruct not called ";
        }

        if (!TestInterceptor.aroundInvokeCalled || TestInterceptor.aroundInvokeInvocationCount != 1) {
            msg += "; Business method interceptor aroundInvoke not called ";
        }

        tb.hello("Client");

        if (TestInterceptor.aroundInvokeInvocationCount != 2) {
            msg += "Business method interceptor invocation on method-level "
                    + "interceptor annotation count not expected. "
                    + "expected=2, actual="
                    + TestInterceptor.aroundInvokeInvocationCount;
        }

        if (TestInterceptor.aroundConstructInvocationCount != 1) {
            msg += "Bean construct interceptor invocation count not expected. "
                    + "expected=1, actual="
                    + TestInterceptor.aroundConstructInvocationCount;
        }

        if (!TestInterceptor.errorMessage.trim().equals("")) {
            msg += TestInterceptor.errorMessage;
        }

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

}