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/*-
* ============LICENSE_START==========================================
* ONAP Portal
* ===================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ===================================================================
*
* Unless otherwise specified, all software contained herein is licensed
* under the Apache License, Version 2.0 (the "License");
* you may not use this software 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.
*
* Unless otherwise specified, all documentation contained herein is licensed
* under the Creative Commons License, Attribution 4.0 Intl. (the "License");
* you may not use this documentation except in compliance with the License.
* You may obtain a copy of the License at
*
* https://creativecommons.org/licenses/by/4.0/
*
* Unless required by applicable law or agreed to in writing, documentation
* 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.onap.portalapp.portal.service;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.PostConstruct;
import org.onap.portalapp.portal.domain.EPApp;
import org.onap.portalapp.portal.logging.aop.EPMetricsLog;
import org.onap.portalapp.portal.service.AppsCacheService;
import org.onap.portalapp.portal.service.EPAppService;
import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.stereotype.Service;
@Service("appsCacheService")
@org.springframework.context.annotation.Configuration
@EnableAspectJAutoProxy
@EPMetricsLog
public class AppsCacheServiceImple implements AppsCacheService {
@Autowired
EPAppService appsService;
EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(AppsCacheServiceImple.class);
private static long updateTime = 0;
private static final int cacheUpdateIntervalInSeconds = 10;
private static volatile Map<Long, EPApp> appsMap;
@PostConstruct
public void init() {
this.refreshAppsMap();
}
private Map<Long, EPApp> refreshAppsMap() {
long now = System.currentTimeMillis();
if(noNeedToUpdate(now))
return null;
synchronized (this) {
if(noNeedToUpdate(now))
return null;
List<EPApp> allApps = appsService.getAppsFullList();
Map<Long, EPApp> newAppsMap = new HashMap<Long, EPApp>();
for (EPApp app : allApps) {
newAppsMap.put(app.getId(), app);
}
// Switch cache with the new one.
appsMap = newAppsMap;
updateTime = now;
}
return appsMap;
}
private boolean noNeedToUpdate(long now) {
long secondsPassed = (now - updateTime)/1000;
if(secondsPassed < cacheUpdateIntervalInSeconds){
logger.debug(EELFLoggerDelegate.debugLogger, "no need to refresh yet, seconds since last refresh: " + secondsPassed + ", refresh interval (sec) = " + cacheUpdateIntervalInSeconds);
return true; // no need to update cache
}
return false; // its time to update
}
@Override
public String getAppEndpoint(Long appId) {
refreshAppsMap();
EPApp app = appsMap.get(appId);
if(app != null)
return app.getAppRestEndpoint();
return null;
}
@Override
public EPApp getApp(Long appId) {
refreshAppsMap();
EPApp app = appsMap.get(appId);
if(app != null)
return app;
return null;
}
}
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