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.filters;
23 import com.google.gson.Gson;
24 import com.google.gson.GsonBuilder;
25 import org.openecomp.sdc.be.components.health.HealthCheckBusinessLogic;
26 import org.openecomp.sdc.be.dao.api.ActionStatus;
27 import org.openecomp.sdc.be.impl.ComponentsUtils;
28 import org.openecomp.sdc.be.impl.WebAppContextWrapper;
29 import org.openecomp.sdc.common.api.Constants;
30 import org.openecomp.sdc.common.api.HealthCheckInfo;
31 import org.openecomp.sdc.common.api.HealthCheckInfo.HealthCheckStatus;
32 import org.openecomp.sdc.exception.ResponseFormat;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
35 import org.springframework.web.context.WebApplicationContext;
37 import javax.annotation.Priority;
38 import javax.servlet.ServletContext;
39 import javax.servlet.http.HttpServletRequest;
40 import javax.ws.rs.container.ContainerRequestContext;
41 import javax.ws.rs.container.ContainerRequestFilter;
42 import javax.ws.rs.core.Context;
43 import javax.ws.rs.core.Response;
44 import javax.ws.rs.core.Response.ResponseBuilder;
45 import javax.ws.rs.core.Response.Status;
46 import java.io.IOException;
47 import java.util.ArrayList;
48 import java.util.List;
51 public class ComponentsAvailabilityFilter implements ContainerRequestFilter {
54 protected HttpServletRequest sr;
55 protected Gson gson = new GsonBuilder().setPrettyPrinting().create();
56 private static final Logger log = LoggerFactory.getLogger(ComponentsAvailabilityFilter.class);
59 public void filter(ContainerRequestContext requestContext) throws IOException {
61 String requestUrl = requestContext.getUriInfo().getPath();
62 if (!requestUrl.equals("healthCheck")) {
63 List<HealthCheckInfo> beHealthCheckInfos = getBeHealthCheckInfos(this.sr.getSession().getServletContext());
64 ActionStatus status = getAggregateBeStatus(beHealthCheckInfos);
66 if (!status.equals(ActionStatus.OK)) {
67 log.error("Components Availability Filter Failed - ES/Cassandra is DOWN");
68 availabilityError(requestContext);
74 protected ActionStatus getAggregateBeStatus(List<HealthCheckInfo> beHealthCheckInfos) {
75 ActionStatus status = ActionStatus.OK;
76 for (HealthCheckInfo healthCheckInfo : beHealthCheckInfos) {
77 if (healthCheckInfo.getHealthCheckStatus().equals(HealthCheckStatus.DOWN)) {
78 status = ActionStatus.GENERAL_ERROR;
85 protected List<HealthCheckInfo> getBeHealthCheckInfos(ServletContext servletContext) {
87 List<HealthCheckInfo> healthCheckInfos = new ArrayList<HealthCheckInfo>();
88 HealthCheckBusinessLogic healthCheckBusinessLogic = getHealthCheckBL(servletContext);
89 healthCheckBusinessLogic.getTitanHealthCheck(healthCheckInfos); // Titan
90 return healthCheckInfos;
93 protected ComponentsUtils getComponentsUtils() {
94 ServletContext context = sr.getSession().getServletContext();
95 WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
96 WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
97 ComponentsUtils componentsUtils = webApplicationContext.getBean(ComponentsUtils.class);
98 return componentsUtils;
101 protected void availabilityError(ContainerRequestContext requestContext) {
102 ComponentsUtils componentUtils = getComponentsUtils();
103 if (componentUtils == null) {
104 log.error("Components Availability Filter Failed to get component utils.");
105 requestContext.abortWith(Response.status(Status.INTERNAL_SERVER_ERROR).build());
107 ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR);
108 ResponseBuilder responseBuilder = Response.status(responseFormat.getStatus());
109 Response response = responseBuilder.entity(gson.toJson(responseFormat.getRequestError())).build();
110 requestContext.abortWith(response);
113 private HealthCheckBusinessLogic getHealthCheckBL(ServletContext context) {
114 WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
115 WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
116 HealthCheckBusinessLogic healthCheckBl = webApplicationContext.getBean(HealthCheckBusinessLogic.class);
117 return healthCheckBl;