Java tutorial
package com.netflix.hystrix.dashboard.stream; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.io.IOUtils; /** * Copyright 2013 Netflix, Inc. * * 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. */ /** * Servlet that calls eureka REST api in order to get instances information. <BR> * You need provide a url parameter. i.e: eureka?url=http://127.0.0.1:8080/eureka/v2/apps * * @author diegopacheco * */ public class EurekaInfoServlet extends HttpServlet { private static final long serialVersionUID = 1L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String uri = request.getParameter("url"); if (uri == null || "".equals(uri)) response.getOutputStream().write("Error. You need supply a valid eureka URL ".getBytes()); try { response.setContentType("application/xml"); response.setHeader("Content-Encoding", "gzip"); IOUtils.copy(UrlUtils.readXmlInputStream(uri), response.getOutputStream()); } catch (Exception e) { response.getOutputStream() .write(("Error. You need supply a valid eureka URL. Ex: " + e + "").getBytes()); } } }