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/*-
* ================================================================================
* ECOMP Portal
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property
* ================================================================================
* 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.
* ================================================================================
*/
package org.openecomp.portalapp.portal.service;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.PostConstruct;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.stereotype.Service;
import org.openecomp.portalsdk.core.logging.logic.EELFLoggerDelegate;
import org.openecomp.portalapp.portal.domain.EPApp;
import org.openecomp.portalapp.portal.logging.aop.EPMetricsLog;
@Service("appsCacheService")
@org.springframework.context.annotation.Configuration
@EnableAspectJAutoProxy
@EPMetricsLog
public class AppsCacheServiceImple implements AppsCacheService {
@Autowired
EPAppService appsService;
EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(AppsCacheServiceImple.class);
final class CacheConfiguration {
private long updateTime = 0;
private int updateInterval = 10;
public CacheConfiguration (long _updateTime, int _updateInterval) {
updateTime = _updateTime;
updateInterval = _updateInterval;
}
}
CacheConfiguration appConf = null;
CacheConfiguration analyticsAppConf = null;
private static volatile Map<Long, EPApp> appsMap;
private static volatile Map<String, EPApp> anlyticsAppsMap;
@PostConstruct
public void init() {
appConf = new CacheConfiguration(0, 10);
analyticsAppConf = new CacheConfiguration(0, 3600);
this.refreshAppsMap(appConf);
}
private Map<Long, EPApp> refreshAppsMap(CacheConfiguration conf) {
long now = System.currentTimeMillis();
if(noNeedToUpdate(now, conf))
return null;
synchronized (this) {
if(noNeedToUpdate(now, conf))
return null;
List<EPApp> allApps = appsService.getAppsFullList();
Map<Long, EPApp> newAppsMap = new HashMap<Long, EPApp>();
for (EPApp app : allApps) {
newAppsMap.put(app.getId(), app);
}
Map<String, EPApp> newAnalyticsAppsMap = new HashMap<String, EPApp>();
for (EPApp app : allApps) {
newAnalyticsAppsMap.put(app.getUebKey(), app);
}
// Switch cache with the new one.
appsMap = newAppsMap;
anlyticsAppsMap = newAnalyticsAppsMap;
conf.updateTime = now;
}
return appsMap;
}
private boolean noNeedToUpdate(long now, CacheConfiguration conf) {
long secondsPassed = (now - conf.updateTime)/1000;
if(secondsPassed < conf.updateInterval){
logger.debug(EELFLoggerDelegate.debugLogger, "no need to refresh yet, seconds since last refresh: " + secondsPassed + ", refresh interval (sec) = " + conf.updateInterval);
return true; // no need to update cache
}
return false; // its time to update
}
@Override
public String getAppEndpoint(Long appId) {
refreshAppsMap(appConf);
EPApp app = appsMap.get(appId);
if(app != null)
return app.getAppRestEndpoint();
return null;
}
@Override
public EPApp getApp(Long appId) {
refreshAppsMap(appConf);
EPApp app = appsMap.get(appId);
if(app != null)
return app;
return null;
}
@Override
public EPApp getAppForAnalytics(String appKey) {
refreshAppsMap(analyticsAppConf);
EPApp app = anlyticsAppsMap.get(appKey);
if(app != null)
return app;
return null;
}
}
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