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/*-
* ============LICENSE_START=======================================================
* VID
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2018 Nokia. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.vid.services;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
import org.onap.sdc.tosca.parser.exceptions.SdcToscaParserException;
import org.onap.vid.asdc.AsdcCatalogException;
import org.onap.vid.asdc.AsdcClient;
import org.onap.vid.asdc.beans.Service;
import org.onap.vid.asdc.parser.ToscaParser;
import org.onap.vid.asdc.parser.ToscaParserImpl;
import org.onap.vid.asdc.parser.ToscaParserImpl2;
import org.onap.vid.exceptions.GenericUncheckedException;
import org.onap.vid.model.ServiceModel;
import org.springframework.beans.factory.annotation.Autowired;
import org.togglz.core.manager.FeatureManager;
import java.nio.file.Path;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import static org.onap.vid.properties.Features.FLAG_SERVICE_MODEL_CACHE;
/**
* The Class VidController.
*/
public class VidServiceImpl implements VidService {
/**
* The Constant LOG.
*/
private static final EELFLoggerDelegate LOG = EELFLoggerDelegate.getLogger(VidServiceImpl.class);
protected final AsdcClient asdcClient;
private final FeatureManager featureManager;
@Autowired
private ToscaParserImpl2 toscaParser;
private final LoadingCache<String, ServiceModel> serviceModelCache;
private class NullServiceModelException extends Exception {
NullServiceModelException(String modelUuid) {
super("Could not create service model for UUID " + modelUuid);
}
}
public VidServiceImpl(AsdcClient asdcClient, FeatureManager featureManager) {
this.asdcClient = asdcClient;
this.featureManager = featureManager;
this.serviceModelCache = CacheBuilder.newBuilder()
.maximumSize(1000)
.expireAfterAccess(7, TimeUnit.DAYS)
.build(new CacheLoader<String, ServiceModel>() {
@Override
public ServiceModel load(String modelUuid) throws AsdcCatalogException, NullServiceModelException {
ServiceModel serviceModel = getServiceFromSdc(modelUuid);
if (serviceModel != null) {
return serviceModel;
} else {
throw new NullServiceModelException(modelUuid);
}
}
});
}
/*
* (non-Javadoc)
*
* @see org.onap.vid.controller.VidService#getService(java.lang.String)
*/
@Override
public ServiceModel getService(String uuid) throws AsdcCatalogException {
if (featureManager.isActive(FLAG_SERVICE_MODEL_CACHE)) {
return getServiceFromCache(uuid);
}else {
return getServiceFromSdc(uuid);
}
}
private ServiceModel getServiceFromCache(String uuid) throws AsdcCatalogException {
try {
return serviceModelCache.get(uuid);
} catch (ExecutionException e) {
if (e.getCause() instanceof AsdcCatalogException) {
throw (AsdcCatalogException) e.getCause();
} else if (e.getCause() instanceof NullServiceModelException) {
return null;
} else {
throw new GenericUncheckedException(e);
}
}
}
private ServiceModel getServiceFromSdc(String uuid) throws AsdcCatalogException {
final Path serviceCsar = asdcClient.getServiceToscaModel(UUID.fromString(uuid));
ToscaParser tosca = new ToscaParserImpl();
serviceCsar.toFile().getAbsolutePath();
ServiceModel serviceModel = null;
try {
final Service asdcServiceMetadata = asdcClient.getService(UUID.fromString(uuid));
return getServiceModel(uuid, serviceCsar, tosca, asdcServiceMetadata);
} catch (Exception e) {
LOG.error("Failed to download and process service from SDC", e);
}
return serviceModel;
}
private ServiceModel getServiceModel(String uuid, Path serviceCsar, ToscaParser tosca, Service asdcServiceMetadata) throws AsdcCatalogException {
try {
return toscaParser.makeServiceModel(serviceCsar, asdcServiceMetadata);
} catch (SdcToscaParserException e) {
return tosca.makeServiceModel(uuid, serviceCsar, asdcServiceMetadata);
}
}
@Override
public void invalidateServiceCache(){
serviceModelCache.invalidateAll();
}
}
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