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.client.api.Request;
24 import org.eclipse.jetty.client.api.Response;
25 import org.eclipse.jetty.proxy.ProxyServlet;
26 import org.openecomp.sdc.be.components.impl.MonitoringBusinessLogic;
27 import org.openecomp.sdc.be.impl.WebAppContextWrapper;
28 import org.openecomp.sdc.common.api.Constants;
29 import org.slf4j.Logger;
30 import org.slf4j.LoggerFactory;
31 import org.springframework.web.context.WebApplicationContext;
33 import javax.servlet.ServletContext;
34 import javax.servlet.http.HttpServletRequest;
35 import javax.servlet.http.HttpServletResponse;
38 public class EsGateway extends ProxyServlet {
40 private static final long serialVersionUID = 1L;
41 private static final Logger log = LoggerFactory.getLogger(EsGateway.class);
44 public URI rewriteURI(HttpServletRequest request) {
46 String originalUrl = request.getRequestURI();
48 String redirectedUrl = getModifiedUrl(request);
50 log.debug("EsGateway Redirecting request from: {} , to: {}", originalUrl, redirectedUrl);
51 return URI.create(redirectedUrl);
55 public void customizeProxyRequest(Request proxyRequest, HttpServletRequest request) {
56 super.customizeProxyRequest(proxyRequest, request);
61 protected void onResponseSuccess(HttpServletRequest request, HttpServletResponse response, Response proxyResponse) {
62 super.onResponseSuccess(request, response, proxyResponse);
65 public String getModifiedUrl(HttpServletRequest request) {
68 MonitoringBusinessLogic monitoringBL = getMonitoringBL(request.getSession().getServletContext());
69 if (monitoringBL == null) {
70 log.error("failed to retrive monitoringBL.");
72 esHost = monitoringBL.getEsHost();
73 esPort = monitoringBL.getEsPort();
76 //String scheme = request.getScheme(); esGateway HTTP
77 String scheme = "http";
78 String contextPath = request.getContextPath(); // /mywebapp
79 String servletPath = request.getServletPath(); // /servlet/MyServlet
80 String pathInfo = request.getPathInfo(); // /a/b;c=123
81 String queryString = request.getQueryString(); // d=789
83 StringBuilder url = new StringBuilder();
84 url.append(scheme).append("://").append(esHost);
85 url.append(":").append(esPort);
86 url.append(contextPath).append(servletPath);
88 if (pathInfo != null) {
91 if (queryString != null) {
92 url.append("?").append(queryString);
95 String redirectedUrl = url.toString().replace("/sdc2/esGateway/", "/");
100 protected MonitoringBusinessLogic getMonitoringBL(ServletContext context) {
102 WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
103 WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
104 MonitoringBusinessLogic monitoringBusinessLogic = webApplicationContext.getBean(MonitoringBusinessLogic.class);
106 return monitoringBusinessLogic;