ecomp-portal-BE-common/src/main/java/org/onap/portalapp/portal/service/AppsCacheServiceImple.java

   1 /*-
   2  * ============LICENSE_START==========================================
   3  * ONAP Portal
   4  * ===================================================================
   5  * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
   6  * ===================================================================
   7  *
   8  * Unless otherwise specified, all software contained herein is licensed
   9  * under the Apache License, Version 2.0 (the "License");
  10  * you may not use this software except in compliance with the License.
  11  * You may obtain a copy of the License at
  12  *
  13  *             http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  *
  21  * Unless otherwise specified, all documentation contained herein is licensed
  22  * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
  23  * you may not use this documentation except in compliance with the License.
  24  * You may obtain a copy of the License at
  25  *
  26  *             https://creativecommons.org/licenses/by/4.0/
  27  *
  28  * Unless required by applicable law or agreed to in writing, documentation
  29  * distributed under the License is distributed on an "AS IS" BASIS,
  30  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  31  * See the License for the specific language governing permissions and
  32  * limitations under the License.
  33  *
  34  * ============LICENSE_END============================================
  35  *
  36  *
  37  */
  38 package org.onap.portalapp.portal.service;
  39
  40 import java.util.ArrayList;
  41 import java.util.HashMap;
  42 import java.util.List;
  43 import java.util.Map;
  44 import java.util.stream.Collectors;
  45
  46 import javax.annotation.PostConstruct;
  47
  48 import org.springframework.beans.factory.annotation.Autowired;
  49 import org.springframework.context.annotation.EnableAspectJAutoProxy;
  50 import org.springframework.stereotype.Service;
  51 import org.onap.portalapp.portal.domain.EPApp;
  52 import org.onap.portalapp.portal.logging.aop.EPMetricsLog;
  53 import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
  54 import org.onap.portalapp.portal.service.AppsCacheService;
  55 import org.onap.portalapp.portal.service.AppsCacheServiceImple;
  56 import org.onap.portalapp.portal.transport.OnboardingApp;
  57
  58 @Service("appsCacheService")
  59 @org.springframework.context.annotation.Configuration
  60 @EnableAspectJAutoProxy
  61 @EPMetricsLog
  62 public class AppsCacheServiceImple implements AppsCacheService {
  63         @Autowired
  64         EPAppService appsService;
  65
  66         EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(AppsCacheServiceImple.class);
  67
  68         final class CacheConfiguration {
  69
  70                 private long updateTime = 0;
  71                 private int updateInterval = 10;
  72
  73                 public CacheConfiguration (long _updateTime, int _updateInterval) {
  74                         updateTime = _updateTime;
  75                         updateInterval = _updateInterval;
  76                 }
  77         }
  78
  79         CacheConfiguration quickRefreshCacheConf = null;
  80         CacheConfiguration slowRefreshCacheConf = null;
  81
  82
  83         private static volatile Map<Long, EPApp> appsMap;
  84         private static volatile Map<String, EPApp> uebAppsMap;
  85
  86         @PostConstruct
  87         public void init() {
  88                 quickRefreshCacheConf = new CacheConfiguration(0, 120);
  89                 slowRefreshCacheConf = new CacheConfiguration(0, 3600);
  90
  91                 this.refreshAppsMap(quickRefreshCacheConf);
  92         }
  93
  94         private void refreshAppsMap(CacheConfiguration conf) {
  95                 long now = System.currentTimeMillis();
  96
  97                 if(noNeedToUpdate(now, conf))
  98                         return;
  99
 100                 synchronized (this) {
 101                         if(noNeedToUpdate(now, conf))
 102                                 return;
 103                         List<EPApp> allApps = appsService.getAppsFullList();
 104                         Map<Long, EPApp> newAppsMap = new HashMap<Long, EPApp>();
 105                         for (EPApp app : allApps) {
 106                                 newAppsMap.put(app.getId(), app);
 107                         }
 108
 109                         Map<String, EPApp> newUebAppsMap = new HashMap<String, EPApp>();
 110                         for (EPApp app : allApps) {
 111                                 newUebAppsMap.put(app.getUebKey(), app);
 112                         }
 113                         // Switch cache with the new one.
 114                         appsMap = newAppsMap;
 115                         uebAppsMap = newUebAppsMap;
 116                         conf.updateTime = now;
 117                 }
 118
 119         }
 120
 121         private boolean noNeedToUpdate(long now, CacheConfiguration conf) {
 122                 long secondsPassed = (now - conf.updateTime)/1000;
 123                 if(secondsPassed < conf.updateInterval){
 124                         logger.debug(EELFLoggerDelegate.debugLogger, "no need to refresh yet, seconds since last refresh: " + secondsPassed + ", refresh interval (sec) = " + conf.updateInterval);
 125                         return true; // no need to update cache
 126                 }
 127                 return false; // its time to update
 128         }
 129
 130         @Override
 131         public String getAppEndpoint(Long appId) {
 132                 refreshAppsMap(quickRefreshCacheConf);
 133                 EPApp app = appsMap.get(appId);
 134                 if(app != null)
 135                         return app.getAppRestEndpoint();
 136                 return null;
 137         }
 138
 139         @SuppressWarnings("unchecked")
 140         @Override
 141         public List<OnboardingApp> getAppsFullList() {
 142                 refreshAppsMap(quickRefreshCacheConf);
 143                 List<EPApp> appList = new ArrayList<EPApp> (appsMap.values());
 144                 appList.removeIf(app -> app.getId() == 1);
 145                 List<EPApp> appsFinalList = appList.stream()
 146                 .filter(app -> app.getEnabled() == true && app.getOpen() == false).collect(Collectors.toList());
 147
 148                 List<OnboardingApp> onboardingAppsList = new ArrayList<OnboardingApp>();
 149                 for (EPApp app : appsFinalList) {
 150                         OnboardingApp onboardingApp = new OnboardingApp();
 151                         appsService.createOnboardingFromApp(app, onboardingApp);
 152                         onboardingAppsList.add(onboardingApp);
 153                 }
 154                 return onboardingAppsList;
 155         }
 156
 157         @Override
 158         public EPApp getApp(Long appId) {
 159                 refreshAppsMap(quickRefreshCacheConf);
 160                 EPApp app = appsMap.get(appId);
 161                 if(app != null)
 162                         return app;
 163                 return null;
 164         }
 165
 166         @Override
 167         public EPApp getAppFromUeb(String appKey) {
 168                 return  getAppFromUeb(appKey,0);
 169         }
 170
 171         @Override
 172         public EPApp getAppFromUeb(String appKey, Integer quickCacheRefresh) {
 173                 refreshAppsMap(quickCacheRefresh == 1 ? quickRefreshCacheConf:slowRefreshCacheConf);
 174                 EPApp app = uebAppsMap.get(appKey);
 175                 if(app != null)
 176                         return app;
 177                 return null;
 178         }
 179
 180 }