ecomp-portal-BE/src/main/java/org/openecomp/portalapp/portal/controller/HealthCheckController.java

   1 /*-
   2  * ================================================================================
   3  * eCOMP Portal
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property
   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
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  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  * ================================================================================
  19  */
  20 package org.openecomp.portalapp.portal.controller;
  21
  22 import java.util.ArrayList;
  23 import java.util.List;
  24
  25 import javax.servlet.http.HttpServletRequest;
  26 import javax.servlet.http.HttpServletResponse;
  27
  28 import org.openecomp.portalapp.controller.EPRestrictedBaseController;
  29 import org.openecomp.portalapp.portal.listener.HealthMonitor;
  30 import org.openecomp.portalapp.portal.logging.aop.EPAuditLog;
  31 import org.openecomp.portalapp.portal.logging.format.EPAppMessagesEnum;
  32 import org.openecomp.portalapp.portal.logging.logic.EPLogUtil;
  33 import org.openecomp.portalapp.portal.utils.EPSystemProperties;
  34 import org.openecomp.portalapp.portal.utils.EcompPortalUtils;
  35 import org.openecomp.portalsdk.core.logging.logic.EELFLoggerDelegate;
  36 import org.slf4j.MDC;
  37 import org.springframework.context.annotation.EnableAspectJAutoProxy;
  38 import org.springframework.web.bind.annotation.RequestMapping;
  39 import org.springframework.web.bind.annotation.RequestMethod;
  40 import org.springframework.web.bind.annotation.RestController;
  41
  42 import com.google.gson.Gson;
  43
  44 /*
  45  * This controller checks the health status and returns JSON response.
  46  * It does not require
  47  */
  48 @RestController
  49 @org.springframework.context.annotation.Configuration
  50 @EnableAspectJAutoProxy
  51 @EPAuditLog
  52 public class HealthCheckController extends EPRestrictedBaseController {
  53
  54         private class HealthStatus {
  55                 public int statusCode;
  56                 @SuppressWarnings("unused")
  57                 public String body;
  58
  59                 public HealthStatus(int code, String body) {
  60                         this.statusCode = code;
  61                         this.body = body;
  62                 }
  63         }
  64
  65         private class HealthStatusInfo {
  66                 HealthStatusInfo(String healthCheckComponent) {
  67                         this.healthCheckComponent = healthCheckComponent;
  68                         this.healthCheckStatus = statusUp; // Default value
  69                         this.version = "";
  70                         this.description = statusOk; // Default value
  71                         this.hostName = "";
  72                         this.ipAddress = "";
  73                         this.dbClusterStatus = "";
  74                         this.dbPermissions = "";
  75                 }
  76
  77                 @SuppressWarnings("unused")
  78                 public String healthCheckComponent;
  79                 @SuppressWarnings("unused")
  80                 public String healthCheckStatus;
  81                 @SuppressWarnings("unused")
  82                 public String version;
  83                 @SuppressWarnings("unused")
  84                 public String description;
  85                 @SuppressWarnings("unused")
  86                 public String hostName;
  87                 @SuppressWarnings("unused")
  88                 public String ipAddress;
  89                 @SuppressWarnings("unused")
  90                 public String dbClusterStatus;
  91                 @SuppressWarnings("unused")
  92                 public String dbPermissions;
  93         }
  94
  95         private final String statusUp = "UP";
  96         private final String statusDown = "DOWN";
  97         private final String statusOk = "OK";
  98
  99         EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(HealthCheckController.class);
 100
 101         @RequestMapping(value = { "/portalApi/healthCheck" }, method = RequestMethod.GET, produces = "application/json")
 102         public HealthStatus healthCheck(HttpServletRequest request, HttpServletResponse response) {
 103                 HealthStatus healthStatus = new HealthStatus(500, "");
 104
 105                 // Return the status as 500 if it suspended due to manual fail over
 106                 if (HealthMonitor.isSuspended) {
 107                         healthStatus.body = "Suspended";
 108                         response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 109                         MDC.put(EPSystemProperties.RESPONSE_CODE, Integer.toString(HttpServletResponse.SC_INTERNAL_SERVER_ERROR));
 110                         return healthStatus;
 111                 }
 112
 113                 try {
 114                         boolean overallStatus = true;
 115
 116                         List<HealthStatusInfo> statusCollection = new ArrayList<HealthStatusInfo>();
 117
 118                         HealthStatusInfo beInfo = new HealthStatusInfo("BE");
 119                         beInfo.hostName = EcompPortalUtils.getMyHostName();
 120                         beInfo.ipAddress = EcompPortalUtils.getMyIpAdddress();
 121                         if (!HealthMonitor.isBackEndUp()) {
 122                                 overallStatus = false;
 123                                 beInfo.healthCheckStatus = statusDown;
 124                                 beInfo.description = "Check the logs for more details";
 125                                 EPLogUtil.logEcompError(EPAppMessagesEnum.BeHealthCheckError);
 126                         }
 127                         statusCollection.add(beInfo);
 128
 129                         HealthStatusInfo feInfo = new HealthStatusInfo("FE");
 130                         if (!HealthMonitor.isFrontEndUp()) {
 131                                 overallStatus = false;
 132                                 feInfo.healthCheckStatus = statusDown;
 133                                 feInfo.description = "Check the logs for more details";
 134                                 EPLogUtil.logEcompError(EPAppMessagesEnum.FeHealthCheckError);
 135                         }
 136                         statusCollection.add(feInfo);
 137
 138                         HealthStatusInfo dbInfo = new HealthStatusInfo("DB");
 139                         if (!HealthMonitor.isDatabaseUp()) {
 140                                 overallStatus = false;
 141                                 dbInfo.healthCheckStatus = statusDown;
 142                                 dbInfo.description = "Check the logs for more details";
 143                                 EPLogUtil.logEcompError(EPAppMessagesEnum.BeDaoSystemError);
 144                         }
 145
 146                         if (!HealthMonitor.isClusterStatusOk()) {
 147                                 dbInfo.dbClusterStatus = "Problem, check the logs for more details";
 148                                 EPLogUtil.logEcompError(EPAppMessagesEnum.BeDaoSystemError);
 149                         }
 150                         else {
 151                                 dbInfo.dbClusterStatus = statusOk;
 152                         }
 153
 154                         if (!HealthMonitor.isDatabasePermissionsOk()) {
 155                                 dbInfo.dbPermissions = "Problem, check the logs for more details";
 156                                 EPLogUtil.logEcompError(EPAppMessagesEnum.BeDaoSystemError);
 157                         }
 158                         else {
 159                                 dbInfo.dbPermissions = statusOk;
 160                         }
 161                         statusCollection.add(dbInfo);
 162
 163                         HealthStatusInfo uebInfo = new HealthStatusInfo("UEB");
 164                         if (!HealthMonitor.isUebUp()) {
 165                                 uebInfo.healthCheckStatus = statusDown;
 166                                 uebInfo.description = "Check the logs for more details";
 167                                 EPLogUtil.logEcompError(EPAppMessagesEnum.BeUebConnectionError);
 168                         }
 169                         statusCollection.add(uebInfo);
 170
 171                         String json = "";
 172                         try {
 173                                 json = new Gson().toJson(statusCollection);
 174                         } catch (Exception e) {
 175                                 logger.error(EELFLoggerDelegate.errorLogger, EcompPortalUtils.getStackTrace(e));
 176                                 EPLogUtil.logEcompError(EPAppMessagesEnum.BeInvalidJsonInput);
 177                         }
 178                         logger.info(EELFLoggerDelegate.debugLogger, json);
 179
 180                         if (overallStatus) {
 181                                 healthStatus = new HealthStatus(200, json);
 182                         } else {
 183                                 healthStatus = new HealthStatus(500, json);
 184                                 response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 185                         }
 186                         MDC.put(EPSystemProperties.RESPONSE_CODE, Integer.toString(healthStatus.statusCode));
 187                 } catch (Exception e) {
 188                         logger.error(EELFLoggerDelegate.errorLogger, "Exception occurred while performing the healthcheck. Details: "
 189                                         + EcompPortalUtils.getStackTrace(e));
 190                 }
 191
 192                 EcompPortalUtils.logAndSerializeObject("/portalApi/healthCheck", "GET result =", response.getStatus());
 193
 194                 return healthStatus;
 195         }
 196
 197         @RequestMapping(value = {
 198                         "/portalApi/healthCheckSuspend" }, method = RequestMethod.GET, produces = "application/json")
 199         public HealthStatus healthCheckSuspend(HttpServletRequest request, HttpServletResponse response) {
 200                 HealthStatus healthStatus = new HealthStatus(500, "Suspended for manual failover mechanism");
 201
 202                 HealthMonitor.isSuspended = true;
 203                 healthStatus.statusCode = 200;
 204
 205                 EcompPortalUtils.logAndSerializeObject("/portalApi/healthCheckSuspend", "GET result =",
 206                                                                                                                                                 response.getStatus());
 207
 208                 return healthStatus;
 209         }
 210
 211         @RequestMapping(value = {
 212                         "/portalApi/healthCheckResume" }, method = RequestMethod.GET, produces = "application/json")
 213         public HealthStatus healthCheckResume(HttpServletRequest request, HttpServletResponse response) {
 214                 HealthStatus healthStatus = new HealthStatus(500, "Resumed from manual failover mechanism");
 215
 216                 HealthMonitor.isSuspended = false;
 217                 healthStatus.statusCode = 200;
 218                 EcompPortalUtils.logAndSerializeObject("/portalApi/healthCheckResume", "GET result =",
 219                                                                                                                                                         response.getStatus());
 220                 return healthStatus;
 221         }
 222
 223
 224
 225         @RequestMapping(value = {
 226                         "/portalApi/ping" }, method = RequestMethod.GET, produces = "application/json")
 227         public HealthStatus ping(HttpServletRequest request, HttpServletResponse response) {
 228                 HealthStatus healthStatus = new HealthStatus(200, "OK");
 229                 EcompPortalUtils.logAndSerializeObject("/portalApi/ping", "GET result =",
 230                                 response.getStatus());
 231
 232                 return healthStatus;
 233         }
 234 }