1 files changed, 109 insertions, 0 deletions
diff --git a/catalog-be/src/main/java/org/openecomp/sdc/be/monitoring/EsGateway.java b/catalog-be/src/main/java/org/openecomp/sdc/be/monitoring/EsGateway.java
new file mode 100644
index 0000000000..34a56cdd13
--- /dev/null
+++ b/catalog-be/src/main/java/org/openecomp/sdc/be/monitoring/EsGateway.java
@@ -0,0 +1,109 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.be.monitoring;
+
+import java.net.URI;
+
+import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.eclipse.jetty.client.api.Request;
+import org.eclipse.jetty.client.api.Response;
+import org.eclipse.jetty.proxy.ProxyServlet;
+import org.openecomp.sdc.be.components.impl.MonitoringBusinessLogic;
+import org.openecomp.sdc.be.impl.WebAppContextWrapper;
+import org.openecomp.sdc.common.api.Constants;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.context.WebApplicationContext;
+
+public class EsGateway extends ProxyServlet {
+
+	private static final long serialVersionUID = 1L;
+	private static Logger log = LoggerFactory.getLogger(EsGateway.class.getName());
+
+	@Override
+	public URI rewriteURI(HttpServletRequest request) {
+
+		String originalUrl = request.getRequestURI();
+
+		String redirectedUrl = getModifiedUrl(request);
+
+		log.debug("EsGateway Redirecting request from: {} , to: {}", originalUrl, redirectedUrl);
+		return URI.create(redirectedUrl);
+	}
+
+	@Override
+	public void customizeProxyRequest(Request proxyRequest, HttpServletRequest request) {
+		super.customizeProxyRequest(proxyRequest, request);
+
+	}
+
+	@Override
+	protected void onResponseSuccess(HttpServletRequest request, HttpServletResponse response, Response proxyResponse) {
+		super.onResponseSuccess(request, response, proxyResponse);
+	}
+
+	public String getModifiedUrl(HttpServletRequest request) {
+		String esHost = null;
+		String esPort = null;
+		MonitoringBusinessLogic monitoringBL = getMonitoringBL(request.getSession().getServletContext());
+		if (monitoringBL == null) {
+			log.error("failed to retrive monitoringBL.");
+		} else {
+			esHost = monitoringBL.getEsHost();
+			esPort = monitoringBL.getEsPort();
+		}
+
+		String scheme = request.getScheme();
+		String contextPath = request.getContextPath(); // /mywebapp
+		String servletPath = request.getServletPath(); // /servlet/MyServlet
+		String pathInfo = request.getPathInfo(); // /a/b;c=123
+		String queryString = request.getQueryString(); // d=789
+
+		StringBuilder url = new StringBuilder();
+		url.append(scheme).append("://").append(esHost);
+		url.append(":").append(esPort);
+		url.append(contextPath).append(servletPath);
+
+		if (pathInfo != null) {
+			url.append(pathInfo);
+		}
+		if (queryString != null) {
+			url.append("?").append(queryString);
+		}
+
+		String redirectedUrl = url.toString().replace("/sdc2/esGateway/", "/");
+		return redirectedUrl;
+
+	}
+
+	protected MonitoringBusinessLogic getMonitoringBL(ServletContext context) {
+
+		WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
+		WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
+		MonitoringBusinessLogic monitoringBusinessLogic = webApplicationContext.getBean(MonitoringBusinessLogic.class);
+
+		return monitoringBusinessLogic;
+	}
+
+}