FailingConnectionServlet.java

/**
 * Copyright (C) 2009-2012 the original author or authors.
 * See the notice.md file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.fusesource.restygwt.server;

import java.io.IOException;
import java.util.logging.Logger;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet component of the FailingConnectionTestGwt.
 * <p>
 * Simulates (500 + times) server error assuming the client stops after certain number of times
 * => Used to test the retrying async callback.
 * </p>
 *
 * @author <a href="mailto:mail@raphaelbauer.com">rEyez</<a>
 * @author <a href="blog.mkristian.tk">Kristian</<a>
 */
public class FailingConnectionServlet extends HttpServlet {

    private static final long serialVersionUID = 1L;

    private static final Logger log = Logger.getLogger(FailingConnectionServlet.class.getName());

    private static int currentNumberOfServerFailures = 0;

    @Override
    protected void doGet(HttpServletRequest request,
            HttpServletResponse response) throws IOException {

        log.fine("GET: failingMODE");

        log.fine("respond code: " + 
                (500 + currentNumberOfServerFailures) + 
                " with purpose");
        response.setStatus(500 + currentNumberOfServerFailures++);
    }
}