2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.openecomp.sdc.be.monitoring;
23 import org.eclipse.jetty.proxy.ProxyServlet;
24 import org.openecomp.sdc.be.components.impl.MonitoringBusinessLogic;
25 import org.openecomp.sdc.be.impl.WebAppContextWrapper;
26 import org.openecomp.sdc.common.api.Constants;
27 import org.openecomp.sdc.common.log.wrappers.Logger;
28 import org.springframework.web.context.WebApplicationContext;
30 import javax.servlet.ServletContext;
31 import javax.servlet.http.HttpServletRequest;
33 public class EsGateway extends ProxyServlet {
35 private static final long serialVersionUID = 1L;
36 private static final Logger log = Logger.getLogger(EsGateway.class);
39 public String rewriteTarget(HttpServletRequest request) {
41 String originalUrl = request.getRequestURI();
42 String redirectedUrl = getModifiedUrl(request);
44 log.debug("EsGateway Redirecting request from: {} , to: {}", originalUrl, redirectedUrl);
48 public String getModifiedUrl(HttpServletRequest request) {
51 MonitoringBusinessLogic monitoringBL = getMonitoringBL(request.getSession().getServletContext());
52 if (monitoringBL == null) {
53 log.error("failed to retrieve monitoringBL.");
55 esHost = monitoringBL.getEsHost();
56 esPort = monitoringBL.getEsPort();
59 //String scheme = request.getScheme(); esGateway HTTP
60 String scheme = "http";
61 String contextPath = request.getContextPath(); // /mywebapp
62 String servletPath = request.getServletPath(); // /servlet/MyServlet
63 String pathInfo = request.getPathInfo(); // /a/b;c=123
64 String queryString = request.getQueryString(); // d=789
66 StringBuilder url = new StringBuilder();
67 url.append(scheme).append("://").append(esHost);
68 url.append(":").append(esPort);
69 url.append(contextPath).append(servletPath);
71 if (pathInfo != null) {
74 if (queryString != null) {
75 url.append("?").append(queryString);
78 return url.toString().replace("/sdc2/esGateway/", "/");
82 protected MonitoringBusinessLogic getMonitoringBL(ServletContext context) {
84 WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
85 WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
87 return webApplicationContext.getBean(MonitoringBusinessLogic.class);