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//
// ========================================================================
// Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package com.acme.test;
import java.io.IOException;
import java.io.PrintWriter;
import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import javax.servlet.AsyncContext;
import javax.servlet.AsyncEvent;
import javax.servlet.AsyncListener;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet(urlPatterns="/asy/*", asyncSupported=true)
public class AsyncListenerServlet extends HttpServlet
{
public static class MyAsyncListener implements AsyncListener
{
@Resource(mappedName="maxAmount")
private Double maxAmount;
boolean postConstructCalled = false;
boolean resourceInjected = false;
@PostConstruct
public void postConstruct()
{
postConstructCalled = true;
resourceInjected = (maxAmount != null);
}
public boolean isPostConstructCalled()
{
return postConstructCalled;
}
public boolean isResourceInjected()
{
return resourceInjected;
}
@Override
public void onComplete(AsyncEvent event) throws IOException
{
// TODO Auto-generated method stub
}
@Override
public void onTimeout(AsyncEvent event) throws IOException
{
// TODO Auto-generated method stub
}
@Override
public void onError(AsyncEvent event) throws IOException
{
// TODO Auto-generated method stub
}
@Override
public void onStartAsync(AsyncEvent event) throws IOException
{
// TODO Auto-generated method stub
}
}
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
AsyncContext asyncContext = req.startAsync();
MyAsyncListener listener = asyncContext.createListener(MyAsyncListener.class);
PrintWriter writer = resp.getWriter();
writer.println( "<html>");
writer.println("<HEAD><link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\"/></HEAD>");
writer.println( "<body>");
writer.println("<h1>AsyncListener</h2>");
writer.println("<pre>");
writer.println("<h2>@PostConstruct Callback</h2>");
writer.println("<pre>");
writer.println("@PostConstruct");
writer.println("private void postConstruct ()");
writer.println("{}");
writer.println("</pre>");
writer.println("<br/><b>Result: "+(listener.isPostConstructCalled()?"<span class=\"pass\">PASS</span>":"<span class=\"fail\">FAIL</span>")+"</b>");
writer.println("<h2>@Resource Injection for env-entry </h2>");
writer.println("<pre>");
writer.println("@Resource(mappedName=\"maxAmount\")");
writer.println("private Double maxAmount;");
writer.println("</pre>");
writer.println("<br/><b>Result: "+(listener.isResourceInjected()?" <span class=\"pass\">PASS</span>":" <span class=\"FAIL\">FAIL</span>")+"</b>");
writer.println( "</body>");
writer.println( "</html>");
writer.flush();
writer.close();
asyncContext.complete();
}
}
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