/*******************************************************************************
* Copyright 2012 André Rouél
*
* 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 net.sf.uadetector.example;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.uadetector.ReadableUserAgent;
import net.sf.uadetector.UserAgentStringParser;
import net.sf.uadetector.service.UADetectorServiceFactory;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.AbstractHandler;
public class HelloWorld extends AbstractHandler {
public static void main(final String[] args) throws Exception {
final Server server = new Server(8080);
server.setHandler(new HelloWorld());
server.start();
server.join();
}
@Override
public void destroy() {
// undeploy used parsers cleanly
UADetectorServiceFactory.getOnlineUpdatingParser().shutdown();
}
@Override
public void handle(final String target, final Request baseRequest, final HttpServletRequest request, final HttpServletResponse response)
throws IOException, ServletException {
response.setContentType("text/html;charset=utf-8");
response.setStatus(HttpServletResponse.SC_OK);
baseRequest.setHandled(true);
PrintWriter out = response.getWriter();
out.println("<h1>Hello Servlet</h1>");
out.println("<br>");
// Get an UserAgentStringParser and analyze the requesting client
UserAgentStringParser parser = UADetectorServiceFactory.getOnlineUpdatingParser();
ReadableUserAgent agent = parser.parse(request.getHeader("User-Agent"));
out.append("You're a <em>");
out.append(agent.getName());
out.append("</em> on <em>");
out.append(agent.getOperatingSystem().getName());
out.append("</em>!");
}
}